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/*!
* QUnit 1.23.1
* https://qunitjs.com/
*
* Copyright jQuery Foundation and other contributors
* Released under the MIT license
* https://jquery.org/license
*
* Date: 2016-04-12T17:29Z
*/
( function( global ) {
var QUnit = {};
var Date = global.Date;
var now = Date.now || function() {
return new Date().getTime();
};
var setTimeout = global.setTimeout;
var clearTimeout = global.clearTimeout;
// Store a local window from the global to allow direct references.
var window = global.window;
var defined = {
document: window && window.document !== undefined,
setTimeout: setTimeout !== undefined,
sessionStorage: ( function() {
var x = "qunit-test-string";
try {
sessionStorage.setItem( x, x );
sessionStorage.removeItem( x );
return true;
} catch ( e ) {
return false;
}
}() )
};
var fileName = ( sourceFromStacktrace( 0 ) || "" ).replace( /(:\d+)+\)?/, "" ).replace( /.+\//, "" );
var globalStartCalled = false;
var runStarted = false;
var toString = Object.prototype.toString,
hasOwn = Object.prototype.hasOwnProperty;
// Returns a new Array with the elements that are in a but not in b
function diff( a, b ) {
var i, j,
result = a.slice();
for ( i = 0; i < result.length; i++ ) {
for ( j = 0; j < b.length; j++ ) {
if ( result[ i ] === b[ j ] ) {
result.splice( i, 1 );
i--;
break;
}
}
}
return result;
}
// From jquery.js
function inArray( elem, array ) {
if ( array.indexOf ) {
return array.indexOf( elem );
}
for ( var i = 0, length = array.length; i < length; i++ ) {
if ( array[ i ] === elem ) {
return i;
}
}
return -1;
}
/**
* Makes a clone of an object using only Array or Object as base,
* and copies over the own enumerable properties.
*
* @param {Object} obj
* @return {Object} New object with only the own properties (recursively).
*/
function objectValues ( obj ) {
var key, val,
vals = QUnit.is( "array", obj ) ? [] : {};
for ( key in obj ) {
if ( hasOwn.call( obj, key ) ) {
val = obj[ key ];
vals[ key ] = val === Object( val ) ? objectValues( val ) : val;
}
}
return vals;
}
function extend( a, b, undefOnly ) {
for ( var prop in b ) {
if ( hasOwn.call( b, prop ) ) {
// Avoid "Member not found" error in IE8 caused by messing with window.constructor
// This block runs on every environment, so `global` is being used instead of `window`
// to avoid errors on node.
if ( prop !== "constructor" || a !== global ) {
if ( b[ prop ] === undefined ) {
delete a[ prop ];
} else if ( !( undefOnly && typeof a[ prop ] !== "undefined" ) ) {
a[ prop ] = b[ prop ];
}
}
}
}
return a;
}
function objectType( obj ) {
if ( typeof obj === "undefined" ) {
return "undefined";
}
// Consider: typeof null === object
if ( obj === null ) {
return "null";
}
var match = toString.call( obj ).match( /^\[object\s(.*)\]$/ ),
type = match && match[ 1 ];
switch ( type ) {
case "Number":
if ( isNaN( obj ) ) {
return "nan";
}
return "number";
case "String":
case "Boolean":
case "Array":
case "Set":
case "Map":
case "Date":
case "RegExp":
case "Function":
case "Symbol":
return type.toLowerCase();
}
if ( typeof obj === "object" ) {
return "object";
}
}
// Safe object type checking
function is( type, obj ) {
return QUnit.objectType( obj ) === type;
}
// Doesn't support IE6 to IE9, it will return undefined on these browsers
// See also https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error/Stack
function extractStacktrace( e, offset ) {
offset = offset === undefined ? 4 : offset;
var stack, include, i;
if ( e.stack ) {
stack = e.stack.split( "\n" );
if ( /^error$/i.test( stack[ 0 ] ) ) {
stack.shift();
}
if ( fileName ) {
include = [];
for ( i = offset; i < stack.length; i++ ) {
if ( stack[ i ].indexOf( fileName ) !== -1 ) {
break;
}
include.push( stack[ i ] );
}
if ( include.length ) {
return include.join( "\n" );
}
}
return stack[ offset ];
// Support: Safari <=6 only
} else if ( e.sourceURL ) {
// Exclude useless self-reference for generated Error objects
if ( /qunit.js$/.test( e.sourceURL ) ) {
return;
}
// For actual exceptions, this is useful
return e.sourceURL + ":" + e.line;
}
}
function sourceFromStacktrace( offset ) {
var error = new Error();
// Support: Safari <=7 only, IE <=10 - 11 only
// Not all browsers generate the `stack` property for `new Error()`, see also #636
if ( !error.stack ) {
try {
throw error;
} catch ( err ) {
error = err;
}
}
return extractStacktrace( error, offset );
}
/**
* Config object: Maintain internal state
* Later exposed as QUnit.config
* `config` initialized at top of scope
*/
var config = {
// The queue of tests to run
queue: [],
// Block until document ready
blocking: true,
// By default, run previously failed tests first
// very useful in combination with "Hide passed tests" checked
reorder: true,
// By default, modify document.title when suite is done
altertitle: true,
// HTML Reporter: collapse every test except the first failing test
// If false, all failing tests will be expanded
collapse: true,
// By default, scroll to top of the page when suite is done
scrolltop: true,
// Depth up-to which object will be dumped
maxDepth: 5,
// When enabled, all tests must call expect()
requireExpects: false,
// Placeholder for user-configurable form-exposed URL parameters
urlConfig: [],
// Set of all modules.
modules: [],
// Stack of nested modules
moduleStack: [],
// The first unnamed module
currentModule: {
name: "",
tests: []
},
callbacks: {}
};
// Push a loose unnamed module to the modules collection
config.modules.push( config.currentModule );
var loggingCallbacks = {};
// Register logging callbacks
function registerLoggingCallbacks( obj ) {
var i, l, key,
callbackNames = [ "begin", "done", "log", "testStart", "testDone",
"moduleStart", "moduleDone" ];
function registerLoggingCallback( key ) {
var loggingCallback = function( callback ) {
if ( objectType( callback ) !== "function" ) {
throw new Error(
"QUnit logging methods require a callback function as their first parameters."
);
}
config.callbacks[ key ].push( callback );
};
// DEPRECATED: This will be removed on QUnit 2.0.0+
// Stores the registered functions allowing restoring
// at verifyLoggingCallbacks() if modified
loggingCallbacks[ key ] = loggingCallback;
return loggingCallback;
}
for ( i = 0, l = callbackNames.length; i < l; i++ ) {
key = callbackNames[ i ];
// Initialize key collection of logging callback
if ( objectType( config.callbacks[ key ] ) === "undefined" ) {
config.callbacks[ key ] = [];
}
obj[ key ] = registerLoggingCallback( key );
}
}
function runLoggingCallbacks( key, args ) {
var i, l, callbacks;
callbacks = config.callbacks[ key ];
for ( i = 0, l = callbacks.length; i < l; i++ ) {
callbacks[ i ]( args );
}
}
// DEPRECATED: This will be removed on 2.0.0+
// This function verifies if the loggingCallbacks were modified by the user
// If so, it will restore it, assign the given callback and print a console warning
function verifyLoggingCallbacks() {
var loggingCallback, userCallback;
for ( loggingCallback in loggingCallbacks ) {
if ( QUnit[ loggingCallback ] !== loggingCallbacks[ loggingCallback ] ) {
userCallback = QUnit[ loggingCallback ];
// Restore the callback function
QUnit[ loggingCallback ] = loggingCallbacks[ loggingCallback ];
// Assign the deprecated given callback
QUnit[ loggingCallback ]( userCallback );
if ( global.console && global.console.warn ) {
global.console.warn(
"QUnit." + loggingCallback + " was replaced with a new value.\n" +
"Please, check out the documentation on how to apply logging callbacks.\n" +
"Reference: https://api.qunitjs.com/category/callbacks/"
);
}
}
}
}
( function() {
if ( !defined.document ) {
return;
}
// `onErrorFnPrev` initialized at top of scope
// Preserve other handlers
var onErrorFnPrev = window.onerror;
// Cover uncaught exceptions
// Returning true will suppress the default browser handler,
// returning false will let it run.
window.onerror = function( error, filePath, linerNr ) {
var ret = false;
if ( onErrorFnPrev ) {
ret = onErrorFnPrev( error, filePath, linerNr );
}
// Treat return value as window.onerror itself does,
// Only do our handling if not suppressed.
if ( ret !== true ) {
if ( QUnit.config.current ) {
if ( QUnit.config.current.ignoreGlobalErrors ) {
return true;
}
QUnit.pushFailure( error, filePath + ":" + linerNr );
} else {
QUnit.test( "global failure", extend( function() {
QUnit.pushFailure( error, filePath + ":" + linerNr );
}, { validTest: true } ) );
}
return false;
}
return ret;
};
}() );
// Figure out if we're running the tests from a server or not
QUnit.isLocal = !( defined.document && window.location.protocol !== "file:" );
// Expose the current QUnit version
QUnit.version = "1.23.1";
extend( QUnit, {
// Call on start of module test to prepend name to all tests
module: function( name, testEnvironment, executeNow ) {
var module, moduleFns;
var currentModule = config.currentModule;
if ( arguments.length === 2 ) {
if ( objectType( testEnvironment ) === "function" ) {
executeNow = testEnvironment;
testEnvironment = undefined;
}
}
// DEPRECATED: handles setup/teardown functions,
// beforeEach and afterEach should be used instead
if ( testEnvironment && testEnvironment.setup ) {
testEnvironment.beforeEach = testEnvironment.setup;
delete testEnvironment.setup;
}
if ( testEnvironment && testEnvironment.teardown ) {
testEnvironment.afterEach = testEnvironment.teardown;
delete testEnvironment.teardown;
}
module = createModule();
moduleFns = {
beforeEach: setHook( module, "beforeEach" ),
afterEach: setHook( module, "afterEach" )
};
if ( objectType( executeNow ) === "function" ) {
config.moduleStack.push( module );
setCurrentModule( module );
executeNow.call( module.testEnvironment, moduleFns );
config.moduleStack.pop();
module = module.parentModule || currentModule;
}
setCurrentModule( module );
function createModule() {
var parentModule = config.moduleStack.length ?
config.moduleStack.slice( -1 )[ 0 ] : null;
var moduleName = parentModule !== null ?
[ parentModule.name, name ].join( " > " ) : name;
var module = {
name: moduleName,
parentModule: parentModule,
tests: [],
moduleId: generateHash( moduleName )
};
var env = {};
if ( parentModule ) {
extend( env, parentModule.testEnvironment );
delete env.beforeEach;
delete env.afterEach;
}
extend( env, testEnvironment );
module.testEnvironment = env;
config.modules.push( module );
return module;
}
function setCurrentModule( module ) {
config.currentModule = module;
}
},
// DEPRECATED: QUnit.asyncTest() will be removed in QUnit 2.0.
asyncTest: asyncTest,
test: test,
skip: skip,
only: only,
// DEPRECATED: The functionality of QUnit.start() will be altered in QUnit 2.0.
// In QUnit 2.0, invoking it will ONLY affect the `QUnit.config.autostart` blocking behavior.
start: function( count ) {
var globalStartAlreadyCalled = globalStartCalled;
if ( !config.current ) {
globalStartCalled = true;
if ( runStarted ) {
throw new Error( "Called start() outside of a test context while already started" );
} else if ( globalStartAlreadyCalled || count > 1 ) {
throw new Error( "Called start() outside of a test context too many times" );
} else if ( config.autostart ) {
throw new Error( "Called start() outside of a test context when " +
"QUnit.config.autostart was true" );
} else if ( !config.pageLoaded ) {
// The page isn't completely loaded yet, so bail out and let `QUnit.load` handle it
config.autostart = true;
return;
}
} else {
// If a test is running, adjust its semaphore
config.current.semaphore -= count || 1;
// If semaphore is non-numeric, throw error
if ( isNaN( config.current.semaphore ) ) {
config.current.semaphore = 0;
QUnit.pushFailure(
"Called start() with a non-numeric decrement.",
sourceFromStacktrace( 2 )
);
return;
}
// Don't start until equal number of stop-calls
if ( config.current.semaphore > 0 ) {
return;
}
// Throw an Error if start is called more often than stop
if ( config.current.semaphore < 0 ) {
config.current.semaphore = 0;
QUnit.pushFailure(
"Called start() while already started (test's semaphore was 0 already)",
sourceFromStacktrace( 2 )
);
return;
}
}
resumeProcessing();
},
// DEPRECATED: QUnit.stop() will be removed in QUnit 2.0.
stop: function( count ) {
// If there isn't a test running, don't allow QUnit.stop() to be called
if ( !config.current ) {
throw new Error( "Called stop() outside of a test context" );
}
// If a test is running, adjust its semaphore
config.current.semaphore += count || 1;
pauseProcessing();
},
config: config,
is: is,
objectType: objectType,
extend: extend,
load: function() {
config.pageLoaded = true;
// Initialize the configuration options
extend( config, {
stats: { all: 0, bad: 0 },
moduleStats: { all: 0, bad: 0 },
started: 0,
updateRate: 1000,
autostart: true,
filter: ""
}, true );
config.blocking = false;
if ( config.autostart ) {
resumeProcessing();
}
},
stack: function( offset ) {
offset = ( offset || 0 ) + 2;
return sourceFromStacktrace( offset );
}
} );
registerLoggingCallbacks( QUnit );
function begin() {
var i, l,
modulesLog = [];
// If the test run hasn't officially begun yet
if ( !config.started ) {
// Record the time of the test run's beginning
config.started = now();
verifyLoggingCallbacks();
// Delete the loose unnamed module if unused.
if ( config.modules[ 0 ].name === "" && config.modules[ 0 ].tests.length === 0 ) {
config.modules.shift();
}
// Avoid unnecessary information by not logging modules' test environments
for ( i = 0, l = config.modules.length; i < l; i++ ) {
modulesLog.push( {
name: config.modules[ i ].name,
tests: config.modules[ i ].tests
} );
}
// The test run is officially beginning now
runLoggingCallbacks( "begin", {
totalTests: Test.count,
modules: modulesLog
} );
}
config.blocking = false;
process( true );
}
function process( last ) {
function next() {
process( last );
}
var start = now();
config.depth = ( config.depth || 0 ) + 1;
while ( config.queue.length && !config.blocking ) {
if ( !defined.setTimeout || config.updateRate <= 0 ||
( ( now() - start ) < config.updateRate ) ) {
if ( config.current ) {
// Reset async tracking for each phase of the Test lifecycle
config.current.usedAsync = false;
}
config.queue.shift()();
} else {
setTimeout( next, 13 );
break;
}
}
config.depth--;
if ( last && !config.blocking && !config.queue.length && config.depth === 0 ) {
done();
}
}
function pauseProcessing() {
config.blocking = true;
if ( config.testTimeout && defined.setTimeout ) {
clearTimeout( config.timeout );
config.timeout = setTimeout( function() {
if ( config.current ) {
config.current.semaphore = 0;
QUnit.pushFailure( "Test timed out", sourceFromStacktrace( 2 ) );
} else {
throw new Error( "Test timed out" );
}
resumeProcessing();
}, config.testTimeout );
}
}
function resumeProcessing() {
runStarted = true;
// A slight delay to allow this iteration of the event loop to finish (more assertions, etc.)
if ( defined.setTimeout ) {
setTimeout( function() {
if ( config.current && config.current.semaphore > 0 ) {
return;
}
if ( config.timeout ) {
clearTimeout( config.timeout );
}
begin();
}, 13 );
} else {
begin();
}
}
function done() {
var runtime, passed;
config.autorun = true;
// Log the last module results
if ( config.previousModule ) {
runLoggingCallbacks( "moduleDone", {
name: config.previousModule.name,
tests: config.previousModule.tests,
failed: config.moduleStats.bad,
passed: config.moduleStats.all - config.moduleStats.bad,
total: config.moduleStats.all,
runtime: now() - config.moduleStats.started
} );
}
delete config.previousModule;
runtime = now() - config.started;
passed = config.stats.all - config.stats.bad;
runLoggingCallbacks( "done", {
failed: config.stats.bad,
passed: passed,
total: config.stats.all,
runtime: runtime
} );
}
function setHook( module, hookName ) {
if ( module.testEnvironment === undefined ) {
module.testEnvironment = {};
}
return function( callback ) {
module.testEnvironment[ hookName ] = callback;
};
}
var focused = false;
var priorityCount = 0;
var unitSampler;
function Test( settings ) {
var i, l;
++Test.count;
extend( this, settings );
this.assertions = [];
this.semaphore = 0;
this.usedAsync = false;
this.module = config.currentModule;
this.stack = sourceFromStacktrace( 3 );
// Register unique strings
for ( i = 0, l = this.module.tests; i < l.length; i++ ) {
if ( this.module.tests[ i ].name === this.testName ) {
this.testName += " ";
}
}
this.testId = generateHash( this.module.name, this.testName );
this.module.tests.push( {
name: this.testName,
testId: this.testId
} );
if ( settings.skip ) {
// Skipped tests will fully ignore any sent callback
this.callback = function() {};
this.async = false;
this.expected = 0;
} else {
this.assert = new Assert( this );
}
}
Test.count = 0;
Test.prototype = {
before: function() {
if (
// Emit moduleStart when we're switching from one module to another
this.module !== config.previousModule ||
// They could be equal (both undefined) but if the previousModule property doesn't
// yet exist it means this is the first test in a suite that isn't wrapped in a
// module, in which case we'll just emit a moduleStart event for 'undefined'.
// Without this, reporters can get testStart before moduleStart which is a problem.
!hasOwn.call( config, "previousModule" )
) {
if ( hasOwn.call( config, "previousModule" ) ) {
runLoggingCallbacks( "moduleDone", {
name: config.previousModule.name,
tests: config.previousModule.tests,
failed: config.moduleStats.bad,
passed: config.moduleStats.all - config.moduleStats.bad,
total: config.moduleStats.all,
runtime: now() - config.moduleStats.started
} );
}
config.previousModule = this.module;
config.moduleStats = { all: 0, bad: 0, started: now() };
runLoggingCallbacks( "moduleStart", {
name: this.module.name,
tests: this.module.tests
} );
}
config.current = this;
if ( this.module.testEnvironment ) {
delete this.module.testEnvironment.beforeEach;
delete this.module.testEnvironment.afterEach;
}
this.testEnvironment = extend( {}, this.module.testEnvironment );
this.started = now();
runLoggingCallbacks( "testStart", {
name: this.testName,
module: this.module.name,
testId: this.testId
} );
if ( !config.pollution ) {
saveGlobal();
}
},
run: function() {
var promise;
config.current = this;
if ( this.async ) {
QUnit.stop();
}
this.callbackStarted = now();
if ( config.notrycatch ) {
runTest( this );
return;
}
try {
runTest( this );
} catch ( e ) {
this.pushFailure( "Died on test #" + ( this.assertions.length + 1 ) + " " +
this.stack + ": " + ( e.message || e ), extractStacktrace( e, 0 ) );
// Else next test will carry the responsibility
saveGlobal();
// Restart the tests if they're blocking
if ( config.blocking ) {
QUnit.start();
}
}
function runTest( test ) {
promise = test.callback.call( test.testEnvironment, test.assert );
test.resolvePromise( promise );
}
},
after: function() {
checkPollution();
},
queueHook: function( hook, hookName ) {
var promise,
test = this;
return function runHook() {
config.current = test;
if ( config.notrycatch ) {
callHook();
return;
}
try {
callHook();
} catch ( error ) {
test.pushFailure( hookName + " failed on " + test.testName + ": " +
( error.message || error ), extractStacktrace( error, 0 ) );
}
function callHook() {
promise = hook.call( test.testEnvironment, test.assert );
test.resolvePromise( promise, hookName );
}
};
},
// Currently only used for module level hooks, can be used to add global level ones
hooks: function( handler ) {
var hooks = [];
function processHooks( test, module ) {
if ( module.parentModule ) {
processHooks( test, module.parentModule );
}
if ( module.testEnvironment &&
QUnit.objectType( module.testEnvironment[ handler ] ) === "function" ) {
hooks.push( test.queueHook( module.testEnvironment[ handler ], handler ) );
}
}
// Hooks are ignored on skipped tests
if ( !this.skip ) {
processHooks( this, this.module );
}
return hooks;
},
finish: function() {
config.current = this;
if ( config.requireExpects && this.expected === null ) {
this.pushFailure( "Expected number of assertions to be defined, but expect() was " +
"not called.", this.stack );
} else if ( this.expected !== null && this.expected !== this.assertions.length ) {
this.pushFailure( "Expected " + this.expected + " assertions, but " +
this.assertions.length + " were run", this.stack );
} else if ( this.expected === null && !this.assertions.length ) {
this.pushFailure( "Expected at least one assertion, but none were run - call " +
"expect(0) to accept zero assertions.", this.stack );
}
var i,
bad = 0;
this.runtime = now() - this.started;
config.stats.all += this.assertions.length;
config.moduleStats.all += this.assertions.length;
for ( i = 0; i < this.assertions.length; i++ ) {
if ( !this.assertions[ i ].result ) {
bad++;
config.stats.bad++;
config.moduleStats.bad++;
}
}
runLoggingCallbacks( "testDone", {
name: this.testName,
module: this.module.name,
skipped: !!this.skip,
failed: bad,
passed: this.assertions.length - bad,
total: this.assertions.length,
runtime: this.runtime,
// HTML Reporter use
assertions: this.assertions,
testId: this.testId,
// Source of Test
source: this.stack,
// DEPRECATED: this property will be removed in 2.0.0, use runtime instead
duration: this.runtime
} );
// QUnit.reset() is deprecated and will be replaced for a new
// fixture reset function on QUnit 2.0/2.1.
// It's still called here for backwards compatibility handling
QUnit.reset();
config.current = undefined;
},
queue: function() {
var priority,
test = this;
if ( !this.valid() ) {
return;
}
function run() {
// Each of these can by async
synchronize( [
function() {
test.before();
},
test.hooks( "beforeEach" ),
function() {
test.run();
},
test.hooks( "afterEach" ).reverse(),
function() {
test.after();
},
function() {
test.finish();
}
] );
}
// Prioritize previously failed tests, detected from sessionStorage
priority = QUnit.config.reorder && defined.sessionStorage &&
+sessionStorage.getItem( "qunit-test-" + this.module.name + "-" + this.testName );
return synchronize( run, priority, config.seed );
},
pushResult: function( resultInfo ) {
// Destructure of resultInfo = { result, actual, expected, message, negative }
var source,
details = {
module: this.module.name,
name: this.testName,
result: resultInfo.result,
message: resultInfo.message,
actual: resultInfo.actual,
expected: resultInfo.expected,
testId: this.testId,
negative: resultInfo.negative || false,
runtime: now() - this.started
};
if ( !resultInfo.result ) {
source = sourceFromStacktrace();
if ( source ) {
details.source = source;
}
}
runLoggingCallbacks( "log", details );
this.assertions.push( {
result: !!resultInfo.result,
message: resultInfo.message
} );
},
pushFailure: function( message, source, actual ) {
if ( !( this instanceof Test ) ) {
throw new Error( "pushFailure() assertion outside test context, was " +
sourceFromStacktrace( 2 ) );
}
var details = {
module: this.module.name,
name: this.testName,
result: false,
message: message || "error",
actual: actual || null,
testId: this.testId,
runtime: now() - this.started
};
if ( source ) {
details.source = source;
}
runLoggingCallbacks( "log", details );
this.assertions.push( {
result: false,
message: message
} );
},
resolvePromise: function( promise, phase ) {
var then, message,
test = this;
if ( promise != null ) {
then = promise.then;
if ( QUnit.objectType( then ) === "function" ) {
QUnit.stop();
then.call(
promise,
function() { QUnit.start(); },
function( error ) {
message = "Promise rejected " +
( !phase ? "during" : phase.replace( /Each$/, "" ) ) +
" " + test.testName + ": " + ( error.message || error );
test.pushFailure( message, extractStacktrace( error, 0 ) );
// Else next test will carry the responsibility
saveGlobal();
// Unblock
QUnit.start();
}
);
}
}
},
valid: function() {
var filter = config.filter,
regexFilter = /^(!?)\/([\w\W]*)\/(i?$)/.exec( filter ),
module = config.module && config.module.toLowerCase(),
fullName = ( this.module.name + ": " + this.testName );
function moduleChainNameMatch( testModule ) {
var testModuleName = testModule.name ? testModule.name.toLowerCase() : null;
if ( testModuleName === module ) {
return true;
} else if ( testModule.parentModule ) {
return moduleChainNameMatch( testModule.parentModule );
} else {
return false;
}
}
function moduleChainIdMatch( testModule ) {
return inArray( testModule.moduleId, config.moduleId ) > -1 ||
testModule.parentModule && moduleChainIdMatch( testModule.parentModule );
}
// Internally-generated tests are always valid
if ( this.callback && this.callback.validTest ) {
return true;
}
if ( config.moduleId && config.moduleId.length > 0 &&
!moduleChainIdMatch( this.module ) ) {
return false;
}
if ( config.testId && config.testId.length > 0 &&
inArray( this.testId, config.testId ) < 0 ) {
return false;
}
if ( module && !moduleChainNameMatch( this.module ) ) {
return false;
}
if ( !filter ) {
return true;
}
return regexFilter ?
this.regexFilter( !!regexFilter[ 1 ], regexFilter[ 2 ], regexFilter[ 3 ], fullName ) :
this.stringFilter( filter, fullName );
},
regexFilter: function( exclude, pattern, flags, fullName ) {
var regex = new RegExp( pattern, flags );
var match = regex.test( fullName );
return match !== exclude;
},
stringFilter: function( filter, fullName ) {
filter = filter.toLowerCase();
fullName = fullName.toLowerCase();
var include = filter.charAt( 0 ) !== "!";
if ( !include ) {
filter = filter.slice( 1 );
}
// If the filter matches, we need to honour include
if ( fullName.indexOf( filter ) !== -1 ) {
return include;
}
// Otherwise, do the opposite
return !include;
}
};
// Resets the test setup. Useful for tests that modify the DOM.
/*
DEPRECATED: Use multiple tests instead of resetting inside a test.
Use testStart or testDone for custom cleanup.
This method will throw an error in 2.0, and will be removed in 2.1
*/
QUnit.reset = function() {
// Return on non-browser environments
// This is necessary to not break on node tests
if ( !defined.document ) {
return;
}
var fixture = defined.document && document.getElementById &&
document.getElementById( "qunit-fixture" );
if ( fixture ) {
fixture.innerHTML = config.fixture;
}
};
QUnit.pushFailure = function() {
if ( !QUnit.config.current ) {
throw new Error( "pushFailure() assertion outside test context, in " +
sourceFromStacktrace( 2 ) );
}
// Gets current test obj
var currentTest = QUnit.config.current;
return currentTest.pushFailure.apply( currentTest, arguments );
};
// Based on Java's String.hashCode, a simple but not
// rigorously collision resistant hashing function
function generateHash( module, testName ) {
var hex,
i = 0,
hash = 0,
str = module + "\x1C" + testName,
len = str.length;
for ( ; i < len; i++ ) {
hash = ( ( hash << 5 ) - hash ) + str.charCodeAt( i );
hash |= 0;
}
// Convert the possibly negative integer hash code into an 8 character hex string, which isn't
// strictly necessary but increases user understanding that the id is a SHA-like hash
hex = ( 0x100000000 + hash ).toString( 16 );
if ( hex.length < 8 ) {
hex = "0000000" + hex;
}
return hex.slice( -8 );
}
function synchronize( callback, priority, seed ) {
var last = !priority,
index;
if ( QUnit.objectType( callback ) === "array" ) {
while ( callback.length ) {
synchronize( callback.shift() );
}
return;
}
if ( priority ) {
config.queue.splice( priorityCount++, 0, callback );
} else if ( seed ) {
if ( !unitSampler ) {
unitSampler = unitSamplerGenerator( seed );
}
// Insert into a random position after all priority items
index = Math.floor( unitSampler() * ( config.queue.length - priorityCount + 1 ) );
config.queue.splice( priorityCount + index, 0, callback );
} else {
config.queue.push( callback );
}
if ( config.autorun && !config.blocking ) {
process( last );
}
}
function unitSamplerGenerator( seed ) {
// 32-bit xorshift, requires only a nonzero seed
// http://excamera.com/sphinx/article-xorshift.html
var sample = parseInt( generateHash( seed ), 16 ) || -1;
return function() {
sample ^= sample << 13;
sample ^= sample >>> 17;
sample ^= sample << 5;
// ECMAScript has no unsigned number type
if ( sample < 0 ) {
sample += 0x100000000;
}
return sample / 0x100000000;
};
}
function saveGlobal() {
config.pollution = [];
if ( config.noglobals ) {
for ( var key in global ) {
if ( hasOwn.call( global, key ) ) {
// In Opera sometimes DOM element ids show up here, ignore them
if ( /^qunit-test-output/.test( key ) ) {
continue;
}
config.pollution.push( key );
}
}
}
}
function checkPollution() {
var newGlobals,
deletedGlobals,
old = config.pollution;
saveGlobal();
newGlobals = diff( config.pollution, old );
if ( newGlobals.length > 0 ) {
QUnit.pushFailure( "Introduced global variable(s): " + newGlobals.join( ", " ) );
}
deletedGlobals = diff( old, config.pollution );
if ( deletedGlobals.length > 0 ) {
QUnit.pushFailure( "Deleted global variable(s): " + deletedGlobals.join( ", " ) );
}
}
// Will be exposed as QUnit.asyncTest
function asyncTest( testName, expected, callback ) {
if ( arguments.length === 2 ) {
callback = expected;
expected = null;
}
QUnit.test( testName, expected, callback, true );
}
// Will be exposed as QUnit.test
function test( testName, expected, callback, async ) {
if ( focused ) { return; }
var newTest;
if ( arguments.length === 2 ) {
callback = expected;
expected = null;
}
newTest = new Test( {
testName: testName,
expected: expected,
async: async,
callback: callback
} );
newTest.queue();
}
// Will be exposed as QUnit.skip
function skip( testName ) {
if ( focused ) { return; }
var test = new Test( {
testName: testName,
skip: true
} );
test.queue();
}
// Will be exposed as QUnit.only
function only( testName, expected, callback, async ) {
var newTest;
if ( focused ) { return; }
QUnit.config.queue.length = 0;
focused = true;
if ( arguments.length === 2 ) {
callback = expected;
expected = null;
}
newTest = new Test( {
testName: testName,
expected: expected,
async: async,
callback: callback
} );
newTest.queue();
}
function Assert( testContext ) {
this.test = testContext;
}
// Assert helpers
QUnit.assert = Assert.prototype = {
// Specify the number of expected assertions to guarantee that failed test
// (no assertions are run at all) don't slip through.
expect: function( asserts ) {
if ( arguments.length === 1 ) {
this.test.expected = asserts;
} else {
return this.test.expected;
}
},
// Increment this Test's semaphore counter, then return a function that
// decrements that counter a maximum of once.
async: function( count ) {
var test = this.test,
popped = false,
acceptCallCount = count;
if ( typeof acceptCallCount === "undefined" ) {
acceptCallCount = 1;
}
test.semaphore += 1;
test.usedAsync = true;
pauseProcessing();
return function done() {
if ( popped ) {
test.pushFailure( "Too many calls to the `assert.async` callback",
sourceFromStacktrace( 2 ) );
return;
}
acceptCallCount -= 1;
if ( acceptCallCount > 0 ) {
return;
}
test.semaphore -= 1;
popped = true;
resumeProcessing();
};
},
// Exports test.push() to the user API
// Alias of pushResult.
push: function( result, actual, expected, message, negative ) {
var currentAssert = this instanceof Assert ? this : QUnit.config.current.assert;
return currentAssert.pushResult( {
result: result,
actual: actual,
expected: expected,
message: message,
negative: negative
} );
},
pushResult: function( resultInfo ) {
// Destructure of resultInfo = { result, actual, expected, message, negative }
var assert = this,
currentTest = ( assert instanceof Assert && assert.test ) || QUnit.config.current;
// Backwards compatibility fix.
// Allows the direct use of global exported assertions and QUnit.assert.*
// Although, it's use is not recommended as it can leak assertions
// to other tests from async tests, because we only get a reference to the current test,
// not exactly the test where assertion were intended to be called.
if ( !currentTest ) {
throw new Error( "assertion outside test context, in " + sourceFromStacktrace( 2 ) );
}
if ( currentTest.usedAsync === true && currentTest.semaphore === 0 ) {
currentTest.pushFailure( "Assertion after the final `assert.async` was resolved",
sourceFromStacktrace( 2 ) );
// Allow this assertion to continue running anyway...
}
if ( !( assert instanceof Assert ) ) {
assert = currentTest.assert;
}
return assert.test.pushResult( resultInfo );
},
ok: function( result, message ) {
message = message || ( result ? "okay" : "failed, expected argument to be truthy, was: " +
QUnit.dump.parse( result ) );
this.pushResult( {
result: !!result,
actual: result,
expected: true,
message: message
} );
},
notOk: function( result, message ) {
message = message || ( !result ? "okay" : "failed, expected argument to be falsy, was: " +
QUnit.dump.parse( result ) );
this.pushResult( {
result: !result,
actual: result,
expected: false,
message: message
} );
},
equal: function( actual, expected, message ) {
/*jshint eqeqeq:false */
this.pushResult( {
result: expected == actual,
actual: actual,
expected: expected,
message: message
} );
},
notEqual: function( actual, expected, message ) {
/*jshint eqeqeq:false */
this.pushResult( {
result: expected != actual,
actual: actual,
expected: expected,
message: message,
negative: true
} );
},
propEqual: function( actual, expected, message ) {
actual = objectValues( actual );
expected = objectValues( expected );
this.pushResult( {
result: QUnit.equiv( actual, expected ),
actual: actual,
expected: expected,
message: message
} );
},
notPropEqual: function( actual, expected, message ) {
actual = objectValues( actual );
expected = objectValues( expected );
this.pushResult( {
result: !QUnit.equiv( actual, expected ),
actual: actual,
expected: expected,
message: message,
negative: true
} );
},
deepEqual: function( actual, expected, message ) {
this.pushResult( {
result: QUnit.equiv( actual, expected ),
actual: actual,
expected: expected,
message: message
} );
},
notDeepEqual: function( actual, expected, message ) {
this.pushResult( {
result: !QUnit.equiv( actual, expected ),
actual: actual,
expected: expected,
message: message,
negative: true
} );
},
strictEqual: function( actual, expected, message ) {
this.pushResult( {
result: expected === actual,
actual: actual,
expected: expected,
message: message
} );
},
notStrictEqual: function( actual, expected, message ) {
this.pushResult( {
result: expected !== actual,
actual: actual,
expected: expected,
message: message,
negative: true
} );
},
"throws": function( block, expected, message ) {
var actual, expectedType,
expectedOutput = expected,
ok = false,
currentTest = ( this instanceof Assert && this.test ) || QUnit.config.current;
// 'expected' is optional unless doing string comparison
if ( message == null && typeof expected === "string" ) {
message = expected;
expected = null;
}
currentTest.ignoreGlobalErrors = true;
try {
block.call( currentTest.testEnvironment );
} catch ( e ) {
actual = e;
}
currentTest.ignoreGlobalErrors = false;
if ( actual ) {
expectedType = QUnit.objectType( expected );
// We don't want to validate thrown error
if ( !expected ) {
ok = true;
expectedOutput = null;
// Expected is a regexp
} else if ( expectedType === "regexp" ) {
ok = expected.test( errorString( actual ) );
// Expected is a string
} else if ( expectedType === "string" ) {
ok = expected === errorString( actual );
// Expected is a constructor, maybe an Error constructor
} else if ( expectedType === "function" && actual instanceof expected ) {
ok = true;
// Expected is an Error object
} else if ( expectedType === "object" ) {
ok = actual instanceof expected.constructor &&
actual.name === expected.name &&
actual.message === expected.message;
// Expected is a validation function which returns true if validation passed
} else if ( expectedType === "function" && expected.call( {}, actual ) === true ) {
expectedOutput = null;
ok = true;
}
}
currentTest.assert.pushResult( {
result: ok,
actual: actual,
expected: expectedOutput,
message: message
} );
}
};
// Provide an alternative to assert.throws(), for environments that consider throws a reserved word
// Known to us are: Closure Compiler, Narwhal
( function() {
/*jshint sub:true */
Assert.prototype.raises = Assert.prototype [ "throws" ]; //jscs:ignore requireDotNotation
}() );
function errorString( error ) {
var name, message,
resultErrorString = error.toString();
if ( resultErrorString.substring( 0, 7 ) === "[object" ) {
name = error.name ? error.name.toString() : "Error";
message = error.message ? error.message.toString() : "";
if ( name && message ) {
return name + ": " + message;
} else if ( name ) {
return name;
} else if ( message ) {
return message;
} else {
return "Error";
}
} else {
return resultErrorString;
}
}
// Test for equality any JavaScript type.
// Author: Philippe Rathé <prathe@gmail.com>
QUnit.equiv = ( function() {
// Stack to decide between skip/abort functions
var callers = [];
// Stack to avoiding loops from circular referencing
var parents = [];
var parentsB = [];
var getProto = Object.getPrototypeOf || function( obj ) {
/*jshint proto: true */
return obj.__proto__;
};
function useStrictEquality( b, a ) {
// To catch short annotation VS 'new' annotation of a declaration. e.g.:
// `var i = 1;`
// `var j = new Number(1);`
if ( typeof a === "object" ) {
a = a.valueOf();
}
if ( typeof b === "object" ) {
b = b.valueOf();
}
return a === b;
}
function compareConstructors( a, b ) {
var protoA = getProto( a );
var protoB = getProto( b );
// Comparing constructors is more strict than using `instanceof`
if ( a.constructor === b.constructor ) {
return true;
}
// Ref #851
// If the obj prototype descends from a null constructor, treat it
// as a null prototype.
if ( protoA && protoA.constructor === null ) {
protoA = null;
}
if ( protoB && protoB.constructor === null ) {
protoB = null;
}
// Allow objects with no prototype to be equivalent to
// objects with Object as their constructor.
if ( ( protoA === null && protoB === Object.prototype ) ||
( protoB === null && protoA === Object.prototype ) ) {
return true;
}
return false;
}
function getRegExpFlags( regexp ) {
return "flags" in regexp ? regexp.flags : regexp.toString().match( /[gimuy]*$/ )[ 0 ];
}
var callbacks = {
"string": useStrictEquality,
"boolean": useStrictEquality,
"number": useStrictEquality,
"null": useStrictEquality,
"undefined": useStrictEquality,
"symbol": useStrictEquality,
"date": useStrictEquality,
"nan": function() {
return true;
},
"regexp": function( b, a ) {
return a.source === b.source &&
// Include flags in the comparison
getRegExpFlags( a ) === getRegExpFlags( b );
},
// - skip when the property is a method of an instance (OOP)
// - abort otherwise,
// initial === would have catch identical references anyway
"function": function() {
var caller = callers[ callers.length - 1 ];
return caller !== Object && typeof caller !== "undefined";
},
"array": function( b, a ) {
var i, j, len, loop, aCircular, bCircular;
len = a.length;
if ( len !== b.length ) {
// Safe and faster
return false;
}
// Track reference to avoid circular references
parents.push( a );
parentsB.push( b );
for ( i = 0; i < len; i++ ) {
loop = false;
for ( j = 0; j < parents.length; j++ ) {
aCircular = parents[ j ] === a[ i ];
bCircular = parentsB[ j ] === b[ i ];
if ( aCircular || bCircular ) {
if ( a[ i ] === b[ i ] || aCircular && bCircular ) {
loop = true;
} else {
parents.pop();
parentsB.pop();
return false;
}
}
}
if ( !loop && !innerEquiv( a[ i ], b[ i ] ) ) {
parents.pop();
parentsB.pop();
return false;
}
}
parents.pop();
parentsB.pop();
return true;
},
"set": function( b, a ) {
var innerEq,
outerEq = true;
if ( a.size !== b.size ) {
return false;
}
a.forEach( function( aVal ) {
innerEq = false;
b.forEach( function( bVal ) {
if ( innerEquiv( bVal, aVal ) ) {
innerEq = true;
}
} );
if ( !innerEq ) {
outerEq = false;
}
} );
return outerEq;
},
"map": function( b, a ) {
var innerEq,
outerEq = true;
if ( a.size !== b.size ) {
return false;
}
a.forEach( function( aVal, aKey ) {
innerEq = false;
b.forEach( function( bVal, bKey ) {
if ( innerEquiv( [ bVal, bKey ], [ aVal, aKey ] ) ) {
innerEq = true;
}
} );
if ( !innerEq ) {
outerEq = false;
}
} );
return outerEq;
},
"object": function( b, a ) {
var i, j, loop, aCircular, bCircular;
// Default to true
var eq = true;
var aProperties = [];
var bProperties = [];
if ( compareConstructors( a, b ) === false ) {
return false;
}
// Stack constructor before traversing properties
callers.push( a.constructor );
// Track reference to avoid circular references
parents.push( a );
parentsB.push( b );
// Be strict: don't ensure hasOwnProperty and go deep
for ( i in a ) {
loop = false;
for ( j = 0; j < parents.length; j++ ) {
aCircular = parents[ j ] === a[ i ];
bCircular = parentsB[ j ] === b[ i ];
if ( aCircular || bCircular ) {
if ( a[ i ] === b[ i ] || aCircular && bCircular ) {
loop = true;
} else {
eq = false;
break;
}
}
}
aProperties.push( i );
if ( !loop && !innerEquiv( a[ i ], b[ i ] ) ) {
eq = false;
break;
}
}
parents.pop();
parentsB.pop();
// Unstack, we are done
callers.pop();
for ( i in b ) {
// Collect b's properties
bProperties.push( i );
}
// Ensures identical properties name
return eq && innerEquiv( aProperties.sort(), bProperties.sort() );
}
};
function typeEquiv( a, b ) {
var type = QUnit.objectType( a );
return QUnit.objectType( b ) === type && callbacks[ type ]( b, a );
}
// The real equiv function
function innerEquiv( a, b ) {
// We're done when there's nothing more to compare
if ( arguments.length < 2 ) {
return true;
}
// Require type-specific equality
return ( a === b || typeEquiv( a, b ) ) &&
// ...across all consecutive argument pairs
( arguments.length === 2 || innerEquiv.apply( this, [].slice.call( arguments, 1 ) ) );
}
return innerEquiv;
}() );
// Based on jsDump by Ariel Flesler
// http://flesler.blogspot.com/2008/05/jsdump-pretty-dump-of-any-javascript.html
QUnit.dump = ( function() {
function quote( str ) {
return "\"" + str.toString().replace( /\\/g, "\\\\" ).replace( /"/g, "\\\"" ) + "\"";
}
function literal( o ) {
return o + "";
}
function join( pre, arr, post ) {
var s = dump.separator(),
base = dump.indent(),
inner = dump.indent( 1 );
if ( arr.join ) {
arr = arr.join( "," + s + inner );
}
if ( !arr ) {
return pre + post;
}
return [ pre, inner + arr, base + post ].join( s );
}
function array( arr, stack ) {
var i = arr.length,
ret = new Array( i );
if ( dump.maxDepth && dump.depth > dump.maxDepth ) {
return "[object Array]";
}
this.up();
while ( i-- ) {
ret[ i ] = this.parse( arr[ i ], undefined, stack );
}
this.down();
return join( "[", ret, "]" );
}
var reName = /^function (\w+)/,
dump = {
// The objType is used mostly internally, you can fix a (custom) type in advance
parse: function( obj, objType, stack ) {
stack = stack || [];
var res, parser, parserType,
inStack = inArray( obj, stack );
if ( inStack !== -1 ) {
return "recursion(" + ( inStack - stack.length ) + ")";
}
objType = objType || this.typeOf( obj );
parser = this.parsers[ objType ];
parserType = typeof parser;
if ( parserType === "function" ) {
stack.push( obj );
res = parser.call( this, obj, stack );
stack.pop();
return res;
}
return ( parserType === "string" ) ? parser : this.parsers.error;
},
typeOf: function( obj ) {
var type;
if ( obj === null ) {
type = "null";
} else if ( typeof obj === "undefined" ) {
type = "undefined";
} else if ( QUnit.is( "regexp", obj ) ) {
type = "regexp";
} else if ( QUnit.is( "date", obj ) ) {
type = "date";
} else if ( QUnit.is( "function", obj ) ) {
type = "function";
} else if ( obj.setInterval !== undefined &&
obj.document !== undefined &&
obj.nodeType === undefined ) {
type = "window";
} else if ( obj.nodeType === 9 ) {
type = "document";
} else if ( obj.nodeType ) {
type = "node";
} else if (
// Native arrays
toString.call( obj ) === "[object Array]" ||
// NodeList objects
( typeof obj.length === "number" && obj.item !== undefined &&
( obj.length ? obj.item( 0 ) === obj[ 0 ] : ( obj.item( 0 ) === null &&
obj[ 0 ] === undefined ) ) )
) {
type = "array";
} else if ( obj.constructor === Error.prototype.constructor ) {
type = "error";
} else {
type = typeof obj;
}
return type;
},
separator: function() {
return this.multiline ? this.HTML ? "<br />" : "\n" : this.HTML ? " " : " ";
},
// Extra can be a number, shortcut for increasing-calling-decreasing
indent: function( extra ) {
if ( !this.multiline ) {
return "";
}
var chr = this.indentChar;
if ( this.HTML ) {
chr = chr.replace( /\t/g, " " ).replace( / /g, " " );
}
return new Array( this.depth + ( extra || 0 ) ).join( chr );
},
up: function( a ) {
this.depth += a || 1;
},
down: function( a ) {
this.depth -= a || 1;
},
setParser: function( name, parser ) {
this.parsers[ name ] = parser;
},
// The next 3 are exposed so you can use them
quote: quote,
literal: literal,
join: join,
depth: 1,
maxDepth: QUnit.config.maxDepth,
// This is the list of parsers, to modify them, use dump.setParser
parsers: {
window: "[Window]",
document: "[Document]",
error: function( error ) {
return "Error(\"" + error.message + "\")";
},
unknown: "[Unknown]",
"null": "null",
"undefined": "undefined",
"function": function( fn ) {
var ret = "function",
// Functions never have name in IE
name = "name" in fn ? fn.name : ( reName.exec( fn ) || [] )[ 1 ];
if ( name ) {
ret += " " + name;
}
ret += "(";
ret = [ ret, dump.parse( fn, "functionArgs" ), "){" ].join( "" );
return join( ret, dump.parse( fn, "functionCode" ), "}" );
},
array: array,
nodelist: array,
"arguments": array,
object: function( map, stack ) {
var keys, key, val, i, nonEnumerableProperties,
ret = [];
if ( dump.maxDepth && dump.depth > dump.maxDepth ) {
return "[object Object]";
}
dump.up();
keys = [];
for ( key in map ) {
keys.push( key );
}
// Some properties are not always enumerable on Error objects.
nonEnumerableProperties = [ "message", "name" ];
for ( i in nonEnumerableProperties ) {
key = nonEnumerableProperties[ i ];
if ( key in map && inArray( key, keys ) < 0 ) {
keys.push( key );
}
}
keys.sort();
for ( i = 0; i < keys.length; i++ ) {
key = keys[ i ];
val = map[ key ];
ret.push( dump.parse( key, "key" ) + ": " +
dump.parse( val, undefined, stack ) );
}
dump.down();
return join( "{", ret, "}" );
},
node: function( node ) {
var len, i, val,
open = dump.HTML ? "<" : "<",
close = dump.HTML ? ">" : ">",
tag = node.nodeName.toLowerCase(),
ret = open + tag,
attrs = node.attributes;
if ( attrs ) {
for ( i = 0, len = attrs.length; i < len; i++ ) {
val = attrs[ i ].nodeValue;
// IE6 includes all attributes in .attributes, even ones not explicitly
// set. Those have values like undefined, null, 0, false, "" or
// "inherit".
if ( val && val !== "inherit" ) {
ret += " " + attrs[ i ].nodeName + "=" +
dump.parse( val, "attribute" );
}
}
}
ret += close;
// Show content of TextNode or CDATASection
if ( node.nodeType === 3 || node.nodeType === 4 ) {
ret += node.nodeValue;
}
return ret + open + "/" + tag + close;
},
// Function calls it internally, it's the arguments part of the function
functionArgs: function( fn ) {
var args,
l = fn.length;
if ( !l ) {
return "";
}
args = new Array( l );
while ( l-- ) {
// 97 is 'a'
args[ l ] = String.fromCharCode( 97 + l );
}
return " " + args.join( ", " ) + " ";
},
// Object calls it internally, the key part of an item in a map
key: quote,
// Function calls it internally, it's the content of the function
functionCode: "[code]",
// Node calls it internally, it's a html attribute value
attribute: quote,
string: quote,
date: quote,
regexp: literal,
number: literal,
"boolean": literal
},
// If true, entities are escaped ( <, >, \t, space and \n )
HTML: false,
// Indentation unit
indentChar: " ",
// If true, items in a collection, are separated by a \n, else just a space.
multiline: true
};
return dump;
}() );
// Back compat
QUnit.jsDump = QUnit.dump;
// Deprecated
// Extend assert methods to QUnit for Backwards compatibility
( function() {
var i,
assertions = Assert.prototype;
function applyCurrent( current ) {
return function() {
var assert = new Assert( QUnit.config.current );
current.apply( assert, arguments );
};
}
for ( i in assertions ) {
QUnit[ i ] = applyCurrent( assertions[ i ] );
}
}() );
// For browser, export only select globals
if ( defined.document ) {
( function() {
var i, l,
keys = [
"test",
"module",
"expect",
"asyncTest",
"start",
"stop",
"ok",
"notOk",
"equal",
"notEqual",
"propEqual",
"notPropEqual",
"deepEqual",
"notDeepEqual",
"strictEqual",
"notStrictEqual",
"throws",
"raises"
];
for ( i = 0, l = keys.length; i < l; i++ ) {
window[ keys[ i ] ] = QUnit[ keys[ i ] ];
}
}() );
window.QUnit = QUnit;
}
// For nodejs
if ( typeof module !== "undefined" && module && module.exports ) {
module.exports = QUnit;
// For consistency with CommonJS environments' exports
module.exports.QUnit = QUnit;
}
// For CommonJS with exports, but without module.exports, like Rhino
if ( typeof exports !== "undefined" && exports ) {
exports.QUnit = QUnit;
}
if ( typeof define === "function" && define.amd ) {
define( function() {
return QUnit;
} );
QUnit.config.autostart = false;
}
// Get a reference to the global object, like window in browsers
}( ( function() {
return this;
}() ) ) );
( function() {
// Only interact with URLs via window.location
var location = typeof window !== "undefined" && window.location;
if ( !location ) {
return;
}
var urlParams = getUrlParams();
QUnit.urlParams = urlParams;
// Match module/test by inclusion in an array
QUnit.config.moduleId = [].concat( urlParams.moduleId || [] );
QUnit.config.testId = [].concat( urlParams.testId || [] );
// Exact case-insensitive match of the module name
QUnit.config.module = urlParams.module;
// Regular expression or case-insenstive substring match against "moduleName: testName"
QUnit.config.filter = urlParams.filter;
// Test order randomization
if ( urlParams.seed === true ) {
// Generate a random seed if the option is specified without a value
QUnit.config.seed = Math.random().toString( 36 ).slice( 2 );
} else if ( urlParams.seed ) {
QUnit.config.seed = urlParams.seed;
}
// Add URL-parameter-mapped config values with UI form rendering data
QUnit.config.urlConfig.push(
{
id: "hidepassed",
label: "Hide passed tests",
tooltip: "Only show tests and assertions that fail. Stored as query-strings."
},
{
id: "noglobals",
label: "Check for Globals",
tooltip: "Enabling this will test if any test introduces new properties on the " +
"global object (`window` in Browsers). Stored as query-strings."
},
{
id: "notrycatch",
label: "No try-catch",
tooltip: "Enabling this will run tests outside of a try-catch block. Makes debugging " +
"exceptions in IE reasonable. Stored as query-strings."
}
);
QUnit.begin( function() {
var i, option,
urlConfig = QUnit.config.urlConfig;
for ( i = 0; i < urlConfig.length; i++ ) {
// Options can be either strings or objects with nonempty "id" properties
option = QUnit.config.urlConfig[ i ];
if ( typeof option !== "string" ) {
option = option.id;
}
if ( QUnit.config[ option ] === undefined ) {
QUnit.config[ option ] = urlParams[ option ];
}
}
} );
function getUrlParams() {
var i, param, name, value;
var urlParams = {};
var params = location.search.slice( 1 ).split( "&" );
var length = params.length;
for ( i = 0; i < length; i++ ) {
if ( params[ i ] ) {
param = params[ i ].split( "=" );
name = decodeURIComponent( param[ 0 ] );
// Allow just a key to turn on a flag, e.g., test.html?noglobals
value = param.length === 1 ||
decodeURIComponent( param.slice( 1 ).join( "=" ) ) ;
if ( urlParams[ name ] ) {
urlParams[ name ] = [].concat( urlParams[ name ], value );
} else {
urlParams[ name ] = value;
}
}
}
return urlParams;
}
// Don't load the HTML Reporter on non-browser environments
if ( typeof window === "undefined" || !window.document ) {
return;
}
// Deprecated QUnit.init - Ref #530
// Re-initialize the configuration options
QUnit.init = function() {
var config = QUnit.config;
config.stats = { all: 0, bad: 0 };
config.moduleStats = { all: 0, bad: 0 };
config.started = 0;
config.updateRate = 1000;
config.blocking = false;
config.autostart = true;
config.autorun = false;
config.filter = "";
config.queue = [];
appendInterface();
};
var config = QUnit.config,
document = window.document,
collapseNext = false,
hasOwn = Object.prototype.hasOwnProperty,
unfilteredUrl = setUrl( { filter: undefined, module: undefined,
moduleId: undefined, testId: undefined } ),
defined = {
sessionStorage: ( function() {
var x = "qunit-test-string";
try {
sessionStorage.setItem( x, x );
sessionStorage.removeItem( x );
return true;
} catch ( e ) {
return false;
}
}() )
},
modulesList = [];
/**
* Escape text for attribute or text content.
*/
function escapeText( s ) {
if ( !s ) {
return "";
}
s = s + "";
// Both single quotes and double quotes (for attributes)
return s.replace( /['"<>&]/g, function( s ) {
switch ( s ) {
case "'":
return "'";
case "\"":
return """;
case "<":
return "<";
case ">":
return ">";
case "&":
return "&";
}
} );
}
/**
* @param {HTMLElement} elem
* @param {string} type
* @param {Function} fn
*/
function addEvent( elem, type, fn ) {
if ( elem.addEventListener ) {
// Standards-based browsers
elem.addEventListener( type, fn, false );
} else if ( elem.attachEvent ) {
// Support: IE <9
elem.attachEvent( "on" + type, function() {
var event = window.event;
if ( !event.target ) {
event.target = event.srcElement || document;
}
fn.call( elem, event );
} );
}
}
/**
* @param {Array|NodeList} elems
* @param {string} type
* @param {Function} fn
*/
function addEvents( elems, type, fn ) {
var i = elems.length;
while ( i-- ) {
addEvent( elems[ i ], type, fn );
}
}
function hasClass( elem, name ) {
return ( " " + elem.className + " " ).indexOf( " " + name + " " ) >= 0;
}
function addClass( elem, name ) {
if ( !hasClass( elem, name ) ) {
elem.className += ( elem.className ? " " : "" ) + name;
}
}
function toggleClass( elem, name, force ) {
if ( force || typeof force === "undefined" && !hasClass( elem, name ) ) {
addClass( elem, name );
} else {
removeClass( elem, name );
}
}
function removeClass( elem, name ) {
var set = " " + elem.className + " ";
// Class name may appear multiple times
while ( set.indexOf( " " + name + " " ) >= 0 ) {
set = set.replace( " " + name + " ", " " );
}
// Trim for prettiness
elem.className = typeof set.trim === "function" ? set.trim() : set.replace( /^\s+|\s+$/g, "" );
}
function id( name ) {
return document.getElementById && document.getElementById( name );
}
function getUrlConfigHtml() {
var i, j, val,
escaped, escapedTooltip,
selection = false,
urlConfig = config.urlConfig,
urlConfigHtml = "";
for ( i = 0; i < urlConfig.length; i++ ) {
// Options can be either strings or objects with nonempty "id" properties
val = config.urlConfig[ i ];
if ( typeof val === "string" ) {
val = {
id: val,
label: val
};
}
escaped = escapeText( val.id );
escapedTooltip = escapeText( val.tooltip );
if ( !val.value || typeof val.value === "string" ) {
urlConfigHtml += "<input id='qunit-urlconfig-" + escaped +
"' name='" + escaped + "' type='checkbox'" +
( val.value ? " value='" + escapeText( val.value ) + "'" : "" ) +
( config[ val.id ] ? " checked='checked'" : "" ) +
" title='" + escapedTooltip + "' /><label for='qunit-urlconfig-" + escaped +
"' title='" + escapedTooltip + "'>" + val.label + "</label>";
} else {
urlConfigHtml += "<label for='qunit-urlconfig-" + escaped +
"' title='" + escapedTooltip + "'>" + val.label +
": </label><select id='qunit-urlconfig-" + escaped +
"' name='" + escaped + "' title='" + escapedTooltip + "'><option></option>";
if ( QUnit.is( "array", val.value ) ) {
for ( j = 0; j < val.value.length; j++ ) {
escaped = escapeText( val.value[ j ] );
urlConfigHtml += "<option value='" + escaped + "'" +
( config[ val.id ] === val.value[ j ] ?
( selection = true ) && " selected='selected'" : "" ) +
">" + escaped + "</option>";
}
} else {
for ( j in val.value ) {
if ( hasOwn.call( val.value, j ) ) {
urlConfigHtml += "<option value='" + escapeText( j ) + "'" +
( config[ val.id ] === j ?
( selection = true ) && " selected='selected'" : "" ) +
">" + escapeText( val.value[ j ] ) + "</option>";
}
}
}
if ( config[ val.id ] && !selection ) {
escaped = escapeText( config[ val.id ] );
urlConfigHtml += "<option value='" + escaped +
"' selected='selected' disabled='disabled'>" + escaped + "</option>";
}
urlConfigHtml += "</select>";
}
}
return urlConfigHtml;
}
// Handle "click" events on toolbar checkboxes and "change" for select menus.
// Updates the URL with the new state of `config.urlConfig` values.
function toolbarChanged() {
var updatedUrl, value, tests,
field = this,
params = {};
// Detect if field is a select menu or a checkbox
if ( "selectedIndex" in field ) {
value = field.options[ field.selectedIndex ].value || undefined;
} else {
value = field.checked ? ( field.defaultValue || true ) : undefined;
}
params[ field.name ] = value;
updatedUrl = setUrl( params );
// Check if we can apply the change without a page refresh
if ( "hidepassed" === field.name && "replaceState" in window.history ) {
QUnit.urlParams[ field.name ] = value;
config[ field.name ] = value || false;
tests = id( "qunit-tests" );
if ( tests ) {
toggleClass( tests, "hidepass", value || false );
}
window.history.replaceState( null, "", updatedUrl );
} else {
window.location = updatedUrl;
}
}
function setUrl( params ) {
var key, arrValue, i,
querystring = "?",
location = window.location;
params = QUnit.extend( QUnit.extend( {}, QUnit.urlParams ), params );
for ( key in params ) {
// Skip inherited or undefined properties
if ( hasOwn.call( params, key ) && params[ key ] !== undefined ) {
// Output a parameter for each value of this key (but usually just one)
arrValue = [].concat( params[ key ] );
for ( i = 0; i < arrValue.length; i++ ) {
querystring += encodeURIComponent( key );
if ( arrValue[ i ] !== true ) {
querystring += "=" + encodeURIComponent( arrValue[ i ] );
}
querystring += "&";
}
}
}
return location.protocol + "//" + location.host +
location.pathname + querystring.slice( 0, -1 );
}
function applyUrlParams() {
var selectedModule,
modulesList = id( "qunit-modulefilter" ),
filter = id( "qunit-filter-input" ).value;
selectedModule = modulesList ?
decodeURIComponent( modulesList.options[ modulesList.selectedIndex ].value ) :
undefined;
window.location = setUrl( {
module: ( selectedModule === "" ) ? undefined : selectedModule,
filter: ( filter === "" ) ? undefined : filter,
// Remove moduleId and testId filters
moduleId: undefined,
testId: undefined
} );
}
function toolbarUrlConfigContainer() {
var urlConfigContainer = document.createElement( "span" );
urlConfigContainer.innerHTML = getUrlConfigHtml();
addClass( urlConfigContainer, "qunit-url-config" );
// For oldIE support:
// * Add handlers to the individual elements instead of the container
// * Use "click" instead of "change" for checkboxes
addEvents( urlConfigContainer.getElementsByTagName( "input" ), "click", toolbarChanged );
addEvents( urlConfigContainer.getElementsByTagName( "select" ), "change", toolbarChanged );
return urlConfigContainer;
}
function toolbarLooseFilter() {
var filter = document.createElement( "form" ),
label = document.createElement( "label" ),
input = document.createElement( "input" ),
button = document.createElement( "button" );
addClass( filter, "qunit-filter" );
label.innerHTML = "Filter: ";
input.type = "text";
input.value = config.filter || "";
input.name = "filter";
input.id = "qunit-filter-input";
button.innerHTML = "Go";
label.appendChild( input );
filter.appendChild( label );
filter.appendChild( button );
addEvent( filter, "submit", function( ev ) {
applyUrlParams();
if ( ev && ev.preventDefault ) {
ev.preventDefault();
}
return false;
} );
return filter;
}
function toolbarModuleFilterHtml() {
var i,
moduleFilterHtml = "";
if ( !modulesList.length ) {
return false;
}
moduleFilterHtml += "<label for='qunit-modulefilter'>Module: </label>" +
"<select id='qunit-modulefilter' name='modulefilter'><option value='' " +
( QUnit.urlParams.module === undefined ? "selected='selected'" : "" ) +
">< All Modules ></option>";
for ( i = 0; i < modulesList.length; i++ ) {
moduleFilterHtml += "<option value='" +
escapeText( encodeURIComponent( modulesList[ i ] ) ) + "' " +
( QUnit.urlParams.module === modulesList[ i ] ? "selected='selected'" : "" ) +
">" + escapeText( modulesList[ i ] ) + "</option>";
}
moduleFilterHtml += "</select>";
return moduleFilterHtml;
}
function toolbarModuleFilter() {
var toolbar = id( "qunit-testrunner-toolbar" ),
moduleFilter = document.createElement( "span" ),
moduleFilterHtml = toolbarModuleFilterHtml();
if ( !toolbar || !moduleFilterHtml ) {
return false;
}
moduleFilter.setAttribute( "id", "qunit-modulefilter-container" );
moduleFilter.innerHTML = moduleFilterHtml;
addEvent( moduleFilter.lastChild, "change", applyUrlParams );
toolbar.appendChild( moduleFilter );
}
function appendToolbar() {
var toolbar = id( "qunit-testrunner-toolbar" );
if ( toolbar ) {
toolbar.appendChild( toolbarUrlConfigContainer() );
toolbar.appendChild( toolbarLooseFilter() );
toolbarModuleFilter();
}
}
function appendHeader() {
var header = id( "qunit-header" );
if ( header ) {
header.innerHTML = "<a href='" + escapeText( unfilteredUrl ) + "'>" + header.innerHTML +
"</a> ";
}
}
function appendBanner() {
var banner = id( "qunit-banner" );
if ( banner ) {
banner.className = "";
}
}
function appendTestResults() {
var tests = id( "qunit-tests" ),
result = id( "qunit-testresult" );
if ( result ) {
result.parentNode.removeChild( result );
}
if ( tests ) {
tests.innerHTML = "";
result = document.createElement( "p" );
result.id = "qunit-testresult";
result.className = "result";
tests.parentNode.insertBefore( result, tests );
result.innerHTML = "Running...<br /> ";
}
}
function storeFixture() {
var fixture = id( "qunit-fixture" );
if ( fixture ) {
config.fixture = fixture.innerHTML;
}
}
function appendFilteredTest() {
var testId = QUnit.config.testId;
if ( !testId || testId.length <= 0 ) {
return "";
}
return "<div id='qunit-filteredTest'>Rerunning selected tests: " +
escapeText( testId.join( ", " ) ) +
" <a id='qunit-clearFilter' href='" +
escapeText( unfilteredUrl ) +
"'>Run all tests</a></div>";
}
function appendUserAgent() {
var userAgent = id( "qunit-userAgent" );
if ( userAgent ) {
userAgent.innerHTML = "";
userAgent.appendChild(
document.createTextNode(
"QUnit " + QUnit.version + "; " + navigator.userAgent
)
);
}
}
function appendInterface() {
var qunit = id( "qunit" );
if ( qunit ) {
qunit.innerHTML =
"<h1 id='qunit-header'>" + escapeText( document.title ) + "</h1>" +
"<h2 id='qunit-banner'></h2>" +
"<div id='qunit-testrunner-toolbar'></div>" +
appendFilteredTest() +
"<h2 id='qunit-userAgent'></h2>" +
"<ol id='qunit-tests'></ol>";
}
appendHeader();
appendBanner();
appendTestResults();
appendUserAgent();
appendToolbar();
}
function appendTestsList( modules ) {
var i, l, x, z, test, moduleObj;
for ( i = 0, l = modules.length; i < l; i++ ) {
moduleObj = modules[ i ];
for ( x = 0, z = moduleObj.tests.length; x < z; x++ ) {
test = moduleObj.tests[ x ];
appendTest( test.name, test.testId, moduleObj.name );
}
}
}
function appendTest( name, testId, moduleName ) {
var title, rerunTrigger, testBlock, assertList,
tests = id( "qunit-tests" );
if ( !tests ) {
return;
}
title = document.createElement( "strong" );
title.innerHTML = getNameHtml( name, moduleName );
rerunTrigger = document.createElement( "a" );
rerunTrigger.innerHTML = "Rerun";
rerunTrigger.href = setUrl( { testId: testId } );
testBlock = document.createElement( "li" );
testBlock.appendChild( title );
testBlock.appendChild( rerunTrigger );
testBlock.id = "qunit-test-output-" + testId;
assertList = document.createElement( "ol" );
assertList.className = "qunit-assert-list";
testBlock.appendChild( assertList );
tests.appendChild( testBlock );
}
// HTML Reporter initialization and load
QUnit.begin( function( details ) {
var i, moduleObj, tests;
// Sort modules by name for the picker
for ( i = 0; i < details.modules.length; i++ ) {
moduleObj = details.modules[ i ];
if ( moduleObj.name ) {
modulesList.push( moduleObj.name );
}
}
modulesList.sort( function( a, b ) {
return a.localeCompare( b );
} );
// Capture fixture HTML from the page
storeFixture();
// Initialize QUnit elements
appendInterface();
appendTestsList( details.modules );
tests = id( "qunit-tests" );
if ( tests && config.hidepassed ) {
addClass( tests, "hidepass" );
}
} );
QUnit.done( function( details ) {
var i, key,
banner = id( "qunit-banner" ),
tests = id( "qunit-tests" ),
html = [
"Tests completed in ",
details.runtime,
" milliseconds.<br />",
"<span class='passed'>",
details.passed,
"</span> assertions of <span class='total'>",
details.total,
"</span> passed, <span class='failed'>",
details.failed,
"</span> failed."
].join( "" );
if ( banner ) {
banner.className = details.failed ? "qunit-fail" : "qunit-pass";
}
if ( tests ) {
id( "qunit-testresult" ).innerHTML = html;
}
if ( config.altertitle && document.title ) {
// Show ✖ for good, ✔ for bad suite result in title
// use escape sequences in case file gets loaded with non-utf-8-charset
document.title = [
( details.failed ? "\u2716" : "\u2714" ),
document.title.replace( /^[\u2714\u2716] /i, "" )
].join( " " );
}
// Clear own sessionStorage items if all tests passed
if ( config.reorder && defined.sessionStorage && details.failed === 0 ) {
for ( i = 0; i < sessionStorage.length; i++ ) {
key = sessionStorage.key( i++ );
if ( key.indexOf( "qunit-test-" ) === 0 ) {
sessionStorage.removeItem( key );
}
}
}
// Scroll back to top to show results
if ( config.scrolltop && window.scrollTo ) {
window.scrollTo( 0, 0 );
}
} );
function getNameHtml( name, module ) {
var nameHtml = "";
if ( module ) {
nameHtml = "<span class='module-name'>" + escapeText( module ) + "</span>: ";
}
nameHtml += "<span class='test-name'>" + escapeText( name ) + "</span>";
return nameHtml;
}
QUnit.testStart( function( details ) {
var running, testBlock, bad;
testBlock = id( "qunit-test-output-" + details.testId );
if ( testBlock ) {
testBlock.className = "running";
} else {
// Report later registered tests
appendTest( details.name, details.testId, details.module );
}
running = id( "qunit-testresult" );
if ( running ) {
bad = QUnit.config.reorder && defined.sessionStorage &&
+sessionStorage.getItem( "qunit-test-" + details.module + "-" + details.name );
running.innerHTML = ( bad ?
"Rerunning previously failed test: <br />" :
"Running: <br />" ) +
getNameHtml( details.name, details.module );
}
} );
function stripHtml( string ) {
// Strip tags, html entity and whitespaces
return string.replace( /<\/?[^>]+(>|$)/g, "" ).replace( /\"/g, "" ).replace( /\s+/g, "" );
}
QUnit.log( function( details ) {
var assertList, assertLi,
message, expected, actual, diff,
showDiff = false,
testItem = id( "qunit-test-output-" + details.testId );
if ( !testItem ) {
return;
}
message = escapeText( details.message ) || ( details.result ? "okay" : "failed" );
message = "<span class='test-message'>" + message + "</span>";
message += "<span class='runtime'>@ " + details.runtime + " ms</span>";
// The pushFailure doesn't provide details.expected
// when it calls, it's implicit to also not show expected and diff stuff
// Also, we need to check details.expected existence, as it can exist and be undefined
if ( !details.result && hasOwn.call( details, "expected" ) ) {
if ( details.negative ) {
expected = "NOT " + QUnit.dump.parse( details.expected );
} else {
expected = QUnit.dump.parse( details.expected );
}
actual = QUnit.dump.parse( details.actual );
message += "<table><tr class='test-expected'><th>Expected: </th><td><pre>" +
escapeText( expected ) +
"</pre></td></tr>";
if ( actual !== expected ) {
message += "<tr class='test-actual'><th>Result: </th><td><pre>" +
escapeText( actual ) + "</pre></td></tr>";
// Don't show diff if actual or expected are booleans
if ( !( /^(true|false)$/.test( actual ) ) &&
!( /^(true|false)$/.test( expected ) ) ) {
diff = QUnit.diff( expected, actual );
showDiff = stripHtml( diff ).length !==
stripHtml( expected ).length +
stripHtml( actual ).length;
}
// Don't show diff if expected and actual are totally different
if ( showDiff ) {
message += "<tr class='test-diff'><th>Diff: </th><td><pre>" +
diff + "</pre></td></tr>";
}
} else if ( expected.indexOf( "[object Array]" ) !== -1 ||
expected.indexOf( "[object Object]" ) !== -1 ) {
message += "<tr class='test-message'><th>Message: </th><td>" +
"Diff suppressed as the depth of object is more than current max depth (" +
QUnit.config.maxDepth + ").<p>Hint: Use <code>QUnit.dump.maxDepth</code> to " +
" run with a higher max depth or <a href='" +
escapeText( setUrl( { maxDepth: -1 } ) ) + "'>" +
"Rerun</a> without max depth.</p></td></tr>";
} else {
message += "<tr class='test-message'><th>Message: </th><td>" +
"Diff suppressed as the expected and actual results have an equivalent" +
" serialization</td></tr>";
}
if ( details.source ) {
message += "<tr class='test-source'><th>Source: </th><td><pre>" +
escapeText( details.source ) + "</pre></td></tr>";
}
message += "</table>";
// This occurs when pushFailure is set and we have an extracted stack trace
} else if ( !details.result && details.source ) {
message += "<table>" +
"<tr class='test-source'><th>Source: </th><td><pre>" +
escapeText( details.source ) + "</pre></td></tr>" +
"</table>";
}
assertList = testItem.getElementsByTagName( "ol" )[ 0 ];
assertLi = document.createElement( "li" );
assertLi.className = details.result ? "pass" : "fail";
assertLi.innerHTML = message;
assertList.appendChild( assertLi );
} );
QUnit.testDone( function( details ) {
var testTitle, time, testItem, assertList,
good, bad, testCounts, skipped, sourceName,
tests = id( "qunit-tests" );
if ( !tests ) {
return;
}
testItem = id( "qunit-test-output-" + details.testId );
assertList = testItem.getElementsByTagName( "ol" )[ 0 ];
good = details.passed;
bad = details.failed;
// Store result when possible
if ( config.reorder && defined.sessionStorage ) {
if ( bad ) {
sessionStorage.setItem( "qunit-test-" + details.module + "-" + details.name, bad );
} else {
sessionStorage.removeItem( "qunit-test-" + details.module + "-" + details.name );
}
}
if ( bad === 0 ) {
// Collapse the passing tests
addClass( assertList, "qunit-collapsed" );
} else if ( bad && config.collapse && !collapseNext ) {
// Skip collapsing the first failing test
collapseNext = true;
} else {
// Collapse remaining tests
addClass( assertList, "qunit-collapsed" );
}
// The testItem.firstChild is the test name
testTitle = testItem.firstChild;
testCounts = bad ?
"<b class='failed'>" + bad + "</b>, " + "<b class='passed'>" + good + "</b>, " :
"";
testTitle.innerHTML += " <b class='counts'>(" + testCounts +
details.assertions.length + ")</b>";
if ( details.skipped ) {
testItem.className = "skipped";
skipped = document.createElement( "em" );
skipped.className = "qunit-skipped-label";
skipped.innerHTML = "skipped";
testItem.insertBefore( skipped, testTitle );
} else {
addEvent( testTitle, "click", function() {
toggleClass( assertList, "qunit-collapsed" );
} );
testItem.className = bad ? "fail" : "pass";
time = document.createElement( "span" );
time.className = "runtime";
time.innerHTML = details.runtime + " ms";
testItem.insertBefore( time, assertList );
}
// Show the source of the test when showing assertions
if ( details.source ) {
sourceName = document.createElement( "p" );
sourceName.innerHTML = "<strong>Source: </strong>" + details.source;
addClass( sourceName, "qunit-source" );
if ( bad === 0 ) {
addClass( sourceName, "qunit-collapsed" );
}
addEvent( testTitle, "click", function() {
toggleClass( sourceName, "qunit-collapsed" );
} );
testItem.appendChild( sourceName );
}
} );
// Avoid readyState issue with phantomjs
// Ref: #818
var notPhantom = ( function( p ) {
return !( p && p.version && p.version.major > 0 );
} )( window.phantom );
if ( notPhantom && document.readyState === "complete" ) {
QUnit.load();
} else {
addEvent( window, "load", QUnit.load );
}
/*
* This file is a modified version of google-diff-match-patch's JavaScript implementation
* (https://code.google.com/p/google-diff-match-patch/source/browse/trunk/javascript/diff_match_patch_uncompressed.js),
* modifications are licensed as more fully set forth in LICENSE.txt.
*
* The original source of google-diff-match-patch is attributable and licensed as follows:
*
* Copyright 2006 Google Inc.
* https://code.google.com/p/google-diff-match-patch/
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* More Info:
* https://code.google.com/p/google-diff-match-patch/
*
* Usage: QUnit.diff(expected, actual)
*
*/
QUnit.diff = ( function() {
function DiffMatchPatch() {
}
// DIFF FUNCTIONS
/**
* The data structure representing a diff is an array of tuples:
* [[DIFF_DELETE, 'Hello'], [DIFF_INSERT, 'Goodbye'], [DIFF_EQUAL, ' world.']]
* which means: delete 'Hello', add 'Goodbye' and keep ' world.'
*/
var DIFF_DELETE = -1,
DIFF_INSERT = 1,
DIFF_EQUAL = 0;
/**
* Find the differences between two texts. Simplifies the problem by stripping
* any common prefix or suffix off the texts before diffing.
* @param {string} text1 Old string to be diffed.
* @param {string} text2 New string to be diffed.
* @param {boolean=} optChecklines Optional speedup flag. If present and false,
* then don't run a line-level diff first to identify the changed areas.
* Defaults to true, which does a faster, slightly less optimal diff.
* @return {!Array.<!DiffMatchPatch.Diff>} Array of diff tuples.
*/
DiffMatchPatch.prototype.DiffMain = function( text1, text2, optChecklines ) {
var deadline, checklines, commonlength,
commonprefix, commonsuffix, diffs;
// The diff must be complete in up to 1 second.
deadline = ( new Date() ).getTime() + 1000;
// Check for null inputs.
if ( text1 === null || text2 === null ) {
throw new Error( "Null input. (DiffMain)" );
}
// Check for equality (speedup).
if ( text1 === text2 ) {
if ( text1 ) {
return [
[ DIFF_EQUAL, text1 ]
];
}
return [];
}
if ( typeof optChecklines === "undefined" ) {
optChecklines = true;
}
checklines = optChecklines;
// Trim off common prefix (speedup).
commonlength = this.diffCommonPrefix( text1, text2 );
commonprefix = text1.substring( 0, commonlength );
text1 = text1.substring( commonlength );
text2 = text2.substring( commonlength );
// Trim off common suffix (speedup).
commonlength = this.diffCommonSuffix( text1, text2 );
commonsuffix = text1.substring( text1.length - commonlength );
text1 = text1.substring( 0, text1.length - commonlength );
text2 = text2.substring( 0, text2.length - commonlength );
// Compute the diff on the middle block.
diffs = this.diffCompute( text1, text2, checklines, deadline );
// Restore the prefix and suffix.
if ( commonprefix ) {
diffs.unshift( [ DIFF_EQUAL, commonprefix ] );
}
if ( commonsuffix ) {
diffs.push( [ DIFF_EQUAL, commonsuffix ] );
}
this.diffCleanupMerge( diffs );
return diffs;
};
/**
* Reduce the number of edits by eliminating operationally trivial equalities.
* @param {!Array.<!DiffMatchPatch.Diff>} diffs Array of diff tuples.
*/
DiffMatchPatch.prototype.diffCleanupEfficiency = function( diffs ) {
var changes, equalities, equalitiesLength, lastequality,
pointer, preIns, preDel, postIns, postDel;
changes = false;
equalities = []; // Stack of indices where equalities are found.
equalitiesLength = 0; // Keeping our own length var is faster in JS.
/** @type {?string} */
lastequality = null;
// Always equal to diffs[equalities[equalitiesLength - 1]][1]
pointer = 0; // Index of current position.
// Is there an insertion operation before the last equality.
preIns = false;
// Is there a deletion operation before the last equality.
preDel = false;
// Is there an insertion operation after the last equality.
postIns = false;
// Is there a deletion operation after the last equality.
postDel = false;
while ( pointer < diffs.length ) {
// Equality found.
if ( diffs[ pointer ][ 0 ] === DIFF_EQUAL ) {
if ( diffs[ pointer ][ 1 ].length < 4 && ( postIns || postDel ) ) {
// Candidate found.
equalities[ equalitiesLength++ ] = pointer;
preIns = postIns;
preDel = postDel;
lastequality = diffs[ pointer ][ 1 ];
} else {
// Not a candidate, and can never become one.
equalitiesLength = 0;
lastequality = null;
}
postIns = postDel = false;
// An insertion or deletion.
} else {
if ( diffs[ pointer ][ 0 ] === DIFF_DELETE ) {
postDel = true;
} else {
postIns = true;
}
/*
* Five types to be split:
* <ins>A</ins><del>B</del>XY<ins>C</ins><del>D</del>
* <ins>A</ins>X<ins>C</ins><del>D</del>
* <ins>A</ins><del>B</del>X<ins>C</ins>
* <ins>A</del>X<ins>C</ins><del>D</del>
* <ins>A</ins><del>B</del>X<del>C</del>
*/
if ( lastequality && ( ( preIns && preDel && postIns && postDel ) ||
( ( lastequality.length < 2 ) &&
( preIns + preDel + postIns + postDel ) === 3 ) ) ) {
// Duplicate record.
diffs.splice(
equalities[ equalitiesLength - 1 ],
0,
[ DIFF_DELETE, lastequality ]
);
// Change second copy to insert.
diffs[ equalities[ equalitiesLength - 1 ] + 1 ][ 0 ] = DIFF_INSERT;
equalitiesLength--; // Throw away the equality we just deleted;
lastequality = null;
if ( preIns && preDel ) {
// No changes made which could affect previous entry, keep going.
postIns = postDel = true;
equalitiesLength = 0;
} else {
equalitiesLength--; // Throw away the previous equality.
pointer = equalitiesLength > 0 ? equalities[ equalitiesLength - 1 ] : -1;
postIns = postDel = false;
}
changes = true;
}
}
pointer++;
}
if ( changes ) {
this.diffCleanupMerge( diffs );
}
};
/**
* Convert a diff array into a pretty HTML report.
* @param {!Array.<!DiffMatchPatch.Diff>} diffs Array of diff tuples.
* @param {integer} string to be beautified.
* @return {string} HTML representation.
*/
DiffMatchPatch.prototype.diffPrettyHtml = function( diffs ) {
var op, data, x,
html = [];
for ( x = 0; x < diffs.length; x++ ) {
op = diffs[ x ][ 0 ]; // Operation (insert, delete, equal)
data = diffs[ x ][ 1 ]; // Text of change.
switch ( op ) {
case DIFF_INSERT:
html[ x ] = "<ins>" + escapeText( data ) + "</ins>";
break;
case DIFF_DELETE:
html[ x ] = "<del>" + escapeText( data ) + "</del>";
break;
case DIFF_EQUAL:
html[ x ] = "<span>" + escapeText( data ) + "</span>";
break;
}
}
return html.join( "" );
};
/**
* Determine the common prefix of two strings.
* @param {string} text1 First string.
* @param {string} text2 Second string.
* @return {number} The number of characters common to the start of each
* string.
*/
DiffMatchPatch.prototype.diffCommonPrefix = function( text1, text2 ) {
var pointermid, pointermax, pointermin, pointerstart;
// Quick check for common null cases.
if ( !text1 || !text2 || text1.charAt( 0 ) !== text2.charAt( 0 ) ) {
return 0;
}
// Binary search.
// Performance analysis: https://neil.fraser.name/news/2007/10/09/
pointermin = 0;
pointermax = Math.min( text1.length, text2.length );
pointermid = pointermax;
pointerstart = 0;
while ( pointermin < pointermid ) {
if ( text1.substring( pointerstart, pointermid ) ===
text2.substring( pointerstart, pointermid ) ) {
pointermin = pointermid;
pointerstart = pointermin;
} else {
pointermax = pointermid;
}
pointermid = Math.floor( ( pointermax - pointermin ) / 2 + pointermin );
}
return pointermid;
};
/**
* Determine the common suffix of two strings.
* @param {string} text1 First string.
* @param {string} text2 Second string.
* @return {number} The number of characters common to the end of each string.
*/
DiffMatchPatch.prototype.diffCommonSuffix = function( text1, text2 ) {
var pointermid, pointermax, pointermin, pointerend;
// Quick check for common null cases.
if ( !text1 ||
!text2 ||
text1.charAt( text1.length - 1 ) !== text2.charAt( text2.length - 1 ) ) {
return 0;
}
// Binary search.
// Performance analysis: https://neil.fraser.name/news/2007/10/09/
pointermin = 0;
pointermax = Math.min( text1.length, text2.length );
pointermid = pointermax;
pointerend = 0;
while ( pointermin < pointermid ) {
if ( text1.substring( text1.length - pointermid, text1.length - pointerend ) ===
text2.substring( text2.length - pointermid, text2.length - pointerend ) ) {
pointermin = pointermid;
pointerend = pointermin;
} else {
pointermax = pointermid;
}
pointermid = Math.floor( ( pointermax - pointermin ) / 2 + pointermin );
}
return pointermid;
};
/**
* Find the differences between two texts. Assumes that the texts do not
* have any common prefix or suffix.
* @param {string} text1 Old string to be diffed.
* @param {string} text2 New string to be diffed.
* @param {boolean} checklines Speedup flag. If false, then don't run a
* line-level diff first to identify the changed areas.
* If true, then run a faster, slightly less optimal diff.
* @param {number} deadline Time when the diff should be complete by.
* @return {!Array.<!DiffMatchPatch.Diff>} Array of diff tuples.
* @private
*/
DiffMatchPatch.prototype.diffCompute = function( text1, text2, checklines, deadline ) {
var diffs, longtext, shorttext, i, hm,
text1A, text2A, text1B, text2B,
midCommon, diffsA, diffsB;
if ( !text1 ) {
// Just add some text (speedup).
return [
[ DIFF_INSERT, text2 ]
];
}
if ( !text2 ) {
// Just delete some text (speedup).
return [
[ DIFF_DELETE, text1 ]
];
}
longtext = text1.length > text2.length ? text1 : text2;
shorttext = text1.length > text2.length ? text2 : text1;
i = longtext.indexOf( shorttext );
if ( i !== -1 ) {
// Shorter text is inside the longer text (speedup).
diffs = [
[ DIFF_INSERT, longtext.substring( 0, i ) ],
[ DIFF_EQUAL, shorttext ],
[ DIFF_INSERT, longtext.substring( i + shorttext.length ) ]
];
// Swap insertions for deletions if diff is reversed.
if ( text1.length > text2.length ) {
diffs[ 0 ][ 0 ] = diffs[ 2 ][ 0 ] = DIFF_DELETE;
}
return diffs;
}
if ( shorttext.length === 1 ) {
// Single character string.
// After the previous speedup, the character can't be an equality.
return [
[ DIFF_DELETE, text1 ],
[ DIFF_INSERT, text2 ]
];
}
// Check to see if the problem can be split in two.
hm = this.diffHalfMatch( text1, text2 );
if ( hm ) {
// A half-match was found, sort out the return data.
text1A = hm[ 0 ];
text1B = hm[ 1 ];
text2A = hm[ 2 ];
text2B = hm[ 3 ];
midCommon = hm[ 4 ];
// Send both pairs off for separate processing.
diffsA = this.DiffMain( text1A, text2A, checklines, deadline );
diffsB = this.DiffMain( text1B, text2B, checklines, deadline );
// Merge the results.
return diffsA.concat( [
[ DIFF_EQUAL, midCommon ]
], diffsB );
}
if ( checklines && text1.length > 100 && text2.length > 100 ) {
return this.diffLineMode( text1, text2, deadline );
}
return this.diffBisect( text1, text2, deadline );
};
/**
* Do the two texts share a substring which is at least half the length of the
* longer text?
* This speedup can produce non-minimal diffs.
* @param {string} text1 First string.
* @param {string} text2 Second string.
* @return {Array.<string>} Five element Array, containing the prefix of
* text1, the suffix of text1, the prefix of text2, the suffix of
* text2 and the common middle. Or null if there was no match.
* @private
*/
DiffMatchPatch.prototype.diffHalfMatch = function( text1, text2 ) {
var longtext, shorttext, dmp,
text1A, text2B, text2A, text1B, midCommon,
hm1, hm2, hm;
longtext = text1.length > text2.length ? text1 : text2;
shorttext = text1.length > text2.length ? text2 : text1;
if ( longtext.length < 4 || shorttext.length * 2 < longtext.length ) {
return null; // Pointless.
}
dmp = this; // 'this' becomes 'window' in a closure.
/**
* Does a substring of shorttext exist within longtext such that the substring
* is at least half the length of longtext?
* Closure, but does not reference any external variables.
* @param {string} longtext Longer string.
* @param {string} shorttext Shorter string.
* @param {number} i Start index of quarter length substring within longtext.
* @return {Array.<string>} Five element Array, containing the prefix of
* longtext, the suffix of longtext, the prefix of shorttext, the suffix
* of shorttext and the common middle. Or null if there was no match.
* @private
*/
function diffHalfMatchI( longtext, shorttext, i ) {
var seed, j, bestCommon, prefixLength, suffixLength,
bestLongtextA, bestLongtextB, bestShorttextA, bestShorttextB;
// Start with a 1/4 length substring at position i as a seed.
seed = longtext.substring( i, i + Math.floor( longtext.length / 4 ) );
j = -1;
bestCommon = "";
while ( ( j = shorttext.indexOf( seed, j + 1 ) ) !== -1 ) {
prefixLength = dmp.diffCommonPrefix( longtext.substring( i ),
shorttext.substring( j ) );
suffixLength = dmp.diffCommonSuffix( longtext.substring( 0, i ),
shorttext.substring( 0, j ) );
if ( bestCommon.length < suffixLength + prefixLength ) {
bestCommon = shorttext.substring( j - suffixLength, j ) +
shorttext.substring( j, j + prefixLength );
bestLongtextA = longtext.substring( 0, i - suffixLength );
bestLongtextB = longtext.substring( i + prefixLength );
bestShorttextA = shorttext.substring( 0, j - suffixLength );
bestShorttextB = shorttext.substring( j + prefixLength );
}
}
if ( bestCommon.length * 2 >= longtext.length ) {
return [ bestLongtextA, bestLongtextB,
bestShorttextA, bestShorttextB, bestCommon
];
} else {
return null;
}
}
// First check if the second quarter is the seed for a half-match.
hm1 = diffHalfMatchI( longtext, shorttext,
Math.ceil( longtext.length / 4 ) );
// Check again based on the third quarter.
hm2 = diffHalfMatchI( longtext, shorttext,
Math.ceil( longtext.length / 2 ) );
if ( !hm1 && !hm2 ) {
return null;
} else if ( !hm2 ) {
hm = hm1;
} else if ( !hm1 ) {
hm = hm2;
} else {
// Both matched. Select the longest.
hm = hm1[ 4 ].length > hm2[ 4 ].length ? hm1 : hm2;
}
// A half-match was found, sort out the return data.
text1A, text1B, text2A, text2B;
if ( text1.length > text2.length ) {
text1A = hm[ 0 ];
text1B = hm[ 1 ];
text2A = hm[ 2 ];
text2B = hm[ 3 ];
} else {
text2A = hm[ 0 ];
text2B = hm[ 1 ];
text1A = hm[ 2 ];
text1B = hm[ 3 ];
}
midCommon = hm[ 4 ];
return [ text1A, text1B, text2A, text2B, midCommon ];
};
/**
* Do a quick line-level diff on both strings, then rediff the parts for
* greater accuracy.
* This speedup can produce non-minimal diffs.
* @param {string} text1 Old string to be diffed.
* @param {string} text2 New string to be diffed.
* @param {number} deadline Time when the diff should be complete by.
* @return {!Array.<!DiffMatchPatch.Diff>} Array of diff tuples.
* @private
*/
DiffMatchPatch.prototype.diffLineMode = function( text1, text2, deadline ) {
var a, diffs, linearray, pointer, countInsert,
countDelete, textInsert, textDelete, j;
// Scan the text on a line-by-line basis first.
a = this.diffLinesToChars( text1, text2 );
text1 = a.chars1;
text2 = a.chars2;
linearray = a.lineArray;
diffs = this.DiffMain( text1, text2, false, deadline );
// Convert the diff back to original text.
this.diffCharsToLines( diffs, linearray );
// Eliminate freak matches (e.g. blank lines)
this.diffCleanupSemantic( diffs );
// Rediff any replacement blocks, this time character-by-character.
// Add a dummy entry at the end.
diffs.push( [ DIFF_EQUAL, "" ] );
pointer = 0;
countDelete = 0;
countInsert = 0;
textDelete = "";
textInsert = "";
while ( pointer < diffs.length ) {
switch ( diffs[ pointer ][ 0 ] ) {
case DIFF_INSERT:
countInsert++;
textInsert += diffs[ pointer ][ 1 ];
break;
case DIFF_DELETE:
countDelete++;
textDelete += diffs[ pointer ][ 1 ];
break;
case DIFF_EQUAL:
// Upon reaching an equality, check for prior redundancies.
if ( countDelete >= 1 && countInsert >= 1 ) {
// Delete the offending records and add the merged ones.
diffs.splice( pointer - countDelete - countInsert,
countDelete + countInsert );
pointer = pointer - countDelete - countInsert;
a = this.DiffMain( textDelete, textInsert, false, deadline );
for ( j = a.length - 1; j >= 0; j-- ) {
diffs.splice( pointer, 0, a[ j ] );
}
pointer = pointer + a.length;
}
countInsert = 0;
countDelete = 0;
textDelete = "";
textInsert = "";
break;
}
pointer++;
}
diffs.pop(); // Remove the dummy entry at the end.
return diffs;
};
/**
* Find the 'middle snake' of a diff, split the problem in two
* and return the recursively constructed diff.
* See Myers 1986 paper: An O(ND) Difference Algorithm and Its Variations.
* @param {string} text1 Old string to be diffed.
* @param {string} text2 New string to be diffed.
* @param {number} deadline Time at which to bail if not yet complete.
* @return {!Array.<!DiffMatchPatch.Diff>} Array of diff tuples.
* @private
*/
DiffMatchPatch.prototype.diffBisect = function( text1, text2, deadline ) {
var text1Length, text2Length, maxD, vOffset, vLength,
v1, v2, x, delta, front, k1start, k1end, k2start,
k2end, k2Offset, k1Offset, x1, x2, y1, y2, d, k1, k2;
// Cache the text lengths to prevent multiple calls.
text1Length = text1.length;
text2Length = text2.length;
maxD = Math.ceil( ( text1Length + text2Length ) / 2 );
vOffset = maxD;
vLength = 2 * maxD;
v1 = new Array( vLength );
v2 = new Array( vLength );
// Setting all elements to -1 is faster in Chrome & Firefox than mixing
// integers and undefined.
for ( x = 0; x < vLength; x++ ) {
v1[ x ] = -1;
v2[ x ] = -1;
}
v1[ vOffset + 1 ] = 0;
v2[ vOffset + 1 ] = 0;
delta = text1Length - text2Length;
// If the total number of characters is odd, then the front path will collide
// with the reverse path.
front = ( delta % 2 !== 0 );
// Offsets for start and end of k loop.
// Prevents mapping of space beyond the grid.
k1start = 0;
k1end = 0;
k2start = 0;
k2end = 0;
for ( d = 0; d < maxD; d++ ) {
// Bail out if deadline is reached.
if ( ( new Date() ).getTime() > deadline ) {
break;
}
// Walk the front path one step.
for ( k1 = -d + k1start; k1 <= d - k1end; k1 += 2 ) {
k1Offset = vOffset + k1;
if ( k1 === -d || ( k1 !== d && v1[ k1Offset - 1 ] < v1[ k1Offset + 1 ] ) ) {
x1 = v1[ k1Offset + 1 ];
} else {
x1 = v1[ k1Offset - 1 ] + 1;
}
y1 = x1 - k1;
while ( x1 < text1Length && y1 < text2Length &&
text1.charAt( x1 ) === text2.charAt( y1 ) ) {
x1++;
y1++;
}
v1[ k1Offset ] = x1;
if ( x1 > text1Length ) {
// Ran off the right of the graph.
k1end += 2;
} else if ( y1 > text2Length ) {
// Ran off the bottom of the graph.
k1start += 2;
} else if ( front ) {
k2Offset = vOffset + delta - k1;
if ( k2Offset >= 0 && k2Offset < vLength && v2[ k2Offset ] !== -1 ) {
// Mirror x2 onto top-left coordinate system.
x2 = text1Length - v2[ k2Offset ];
if ( x1 >= x2 ) {
// Overlap detected.
return this.diffBisectSplit( text1, text2, x1, y1, deadline );
}
}
}
}
// Walk the reverse path one step.
for ( k2 = -d + k2start; k2 <= d - k2end; k2 += 2 ) {
k2Offset = vOffset + k2;
if ( k2 === -d || ( k2 !== d && v2[ k2Offset - 1 ] < v2[ k2Offset + 1 ] ) ) {
x2 = v2[ k2Offset + 1 ];
} else {
x2 = v2[ k2Offset - 1 ] + 1;
}
y2 = x2 - k2;
while ( x2 < text1Length && y2 < text2Length &&
text1.charAt( text1Length - x2 - 1 ) ===
text2.charAt( text2Length - y2 - 1 ) ) {
x2++;
y2++;
}
v2[ k2Offset ] = x2;
if ( x2 > text1Length ) {
// Ran off the left of the graph.
k2end += 2;
} else if ( y2 > text2Length ) {
// Ran off the top of the graph.
k2start += 2;
} else if ( !front ) {
k1Offset = vOffset + delta - k2;
if ( k1Offset >= 0 && k1Offset < vLength && v1[ k1Offset ] !== -1 ) {
x1 = v1[ k1Offset ];
y1 = vOffset + x1 - k1Offset;
// Mirror x2 onto top-left coordinate system.
x2 = text1Length - x2;
if ( x1 >= x2 ) {
// Overlap detected.
return this.diffBisectSplit( text1, text2, x1, y1, deadline );
}
}
}
}
}
// Diff took too long and hit the deadline or
// number of diffs equals number of characters, no commonality at all.
return [
[ DIFF_DELETE, text1 ],
[ DIFF_INSERT, text2 ]
];
};
/**
* Given the location of the 'middle snake', split the diff in two parts
* and recurse.
* @param {string} text1 Old string to be diffed.
* @param {string} text2 New string to be diffed.
* @param {number} x Index of split point in text1.
* @param {number} y Index of split point in text2.
* @param {number} deadline Time at which to bail if not yet complete.
* @return {!Array.<!DiffMatchPatch.Diff>} Array of diff tuples.
* @private
*/
DiffMatchPatch.prototype.diffBisectSplit = function( text1, text2, x, y, deadline ) {
var text1a, text1b, text2a, text2b, diffs, diffsb;
text1a = text1.substring( 0, x );
text2a = text2.substring( 0, y );
text1b = text1.substring( x );
text2b = text2.substring( y );
// Compute both diffs serially.
diffs = this.DiffMain( text1a, text2a, false, deadline );
diffsb = this.DiffMain( text1b, text2b, false, deadline );
return diffs.concat( diffsb );
};
/**
* Reduce the number of edits by eliminating semantically trivial equalities.
* @param {!Array.<!DiffMatchPatch.Diff>} diffs Array of diff tuples.
*/
DiffMatchPatch.prototype.diffCleanupSemantic = function( diffs ) {
var changes, equalities, equalitiesLength, lastequality,
pointer, lengthInsertions2, lengthDeletions2, lengthInsertions1,
lengthDeletions1, deletion, insertion, overlapLength1, overlapLength2;
changes = false;
equalities = []; // Stack of indices where equalities are found.
equalitiesLength = 0; // Keeping our own length var is faster in JS.
/** @type {?string} */
lastequality = null;
// Always equal to diffs[equalities[equalitiesLength - 1]][1]
pointer = 0; // Index of current position.
// Number of characters that changed prior to the equality.
lengthInsertions1 = 0;
lengthDeletions1 = 0;
// Number of characters that changed after the equality.
lengthInsertions2 = 0;
lengthDeletions2 = 0;
while ( pointer < diffs.length ) {
if ( diffs[ pointer ][ 0 ] === DIFF_EQUAL ) { // Equality found.
equalities[ equalitiesLength++ ] = pointer;
lengthInsertions1 = lengthInsertions2;
lengthDeletions1 = lengthDeletions2;
lengthInsertions2 = 0;
lengthDeletions2 = 0;
lastequality = diffs[ pointer ][ 1 ];
} else { // An insertion or deletion.
if ( diffs[ pointer ][ 0 ] === DIFF_INSERT ) {
lengthInsertions2 += diffs[ pointer ][ 1 ].length;
} else {
lengthDeletions2 += diffs[ pointer ][ 1 ].length;
}
// Eliminate an equality that is smaller or equal to the edits on both
// sides of it.
if ( lastequality && ( lastequality.length <=
Math.max( lengthInsertions1, lengthDeletions1 ) ) &&
( lastequality.length <= Math.max( lengthInsertions2,
lengthDeletions2 ) ) ) {
// Duplicate record.
diffs.splice(
equalities[ equalitiesLength - 1 ],
0,
[ DIFF_DELETE, lastequality ]
);
// Change second copy to insert.
diffs[ equalities[ equalitiesLength - 1 ] + 1 ][ 0 ] = DIFF_INSERT;
// Throw away the equality we just deleted.
equalitiesLength--;
// Throw away the previous equality (it needs to be reevaluated).
equalitiesLength--;
pointer = equalitiesLength > 0 ? equalities[ equalitiesLength - 1 ] : -1;
// Reset the counters.
lengthInsertions1 = 0;
lengthDeletions1 = 0;
lengthInsertions2 = 0;
lengthDeletions2 = 0;
lastequality = null;
changes = true;
}
}
pointer++;
}
// Normalize the diff.
if ( changes ) {
this.diffCleanupMerge( diffs );
}
// Find any overlaps between deletions and insertions.
// e.g: <del>abcxxx</del><ins>xxxdef</ins>
// -> <del>abc</del>xxx<ins>def</ins>
// e.g: <del>xxxabc</del><ins>defxxx</ins>
// -> <ins>def</ins>xxx<del>abc</del>
// Only extract an overlap if it is as big as the edit ahead or behind it.
pointer = 1;
while ( pointer < diffs.length ) {
if ( diffs[ pointer - 1 ][ 0 ] === DIFF_DELETE &&
diffs[ pointer ][ 0 ] === DIFF_INSERT ) {
deletion = diffs[ pointer - 1 ][ 1 ];
insertion = diffs[ pointer ][ 1 ];
overlapLength1 = this.diffCommonOverlap( deletion, insertion );
overlapLength2 = this.diffCommonOverlap( insertion, deletion );
if ( overlapLength1 >= overlapLength2 ) {
if ( overlapLength1 >= deletion.length / 2 ||
overlapLength1 >= insertion.length / 2 ) {
// Overlap found. Insert an equality and trim the surrounding edits.
diffs.splice(
pointer,
0,
[ DIFF_EQUAL, insertion.substring( 0, overlapLength1 ) ]
);
diffs[ pointer - 1 ][ 1 ] =
deletion.substring( 0, deletion.length - overlapLength1 );
diffs[ pointer + 1 ][ 1 ] = insertion.substring( overlapLength1 );
pointer++;
}
} else {
if ( overlapLength2 >= deletion.length / 2 ||
overlapLength2 >= insertion.length / 2 ) {
// Reverse overlap found.
// Insert an equality and swap and trim the surrounding edits.
diffs.splice(
pointer,
0,
[ DIFF_EQUAL, deletion.substring( 0, overlapLength2 ) ]
);
diffs[ pointer - 1 ][ 0 ] = DIFF_INSERT;
diffs[ pointer - 1 ][ 1 ] =
insertion.substring( 0, insertion.length - overlapLength2 );
diffs[ pointer + 1 ][ 0 ] = DIFF_DELETE;
diffs[ pointer + 1 ][ 1 ] =
deletion.substring( overlapLength2 );
pointer++;
}
}
pointer++;
}
pointer++;
}
};
/**
* Determine if the suffix of one string is the prefix of another.
* @param {string} text1 First string.
* @param {string} text2 Second string.
* @return {number} The number of characters common to the end of the first
* string and the start of the second string.
* @private
*/
DiffMatchPatch.prototype.diffCommonOverlap = function( text1, text2 ) {
var text1Length, text2Length, textLength,
best, length, pattern, found;
// Cache the text lengths to prevent multiple calls.
text1Length = text1.length;
text2Length = text2.length;
// Eliminate the null case.
if ( text1Length === 0 || text2Length === 0 ) {
return 0;
}
// Truncate the longer string.
if ( text1Length > text2Length ) {
text1 = text1.substring( text1Length - text2Length );
} else if ( text1Length < text2Length ) {
text2 = text2.substring( 0, text1Length );
}
textLength = Math.min( text1Length, text2Length );
// Quick check for the worst case.
if ( text1 === text2 ) {
return textLength;
}
// Start by looking for a single character match
// and increase length until no match is found.
// Performance analysis: https://neil.fraser.name/news/2010/11/04/
best = 0;
length = 1;
while ( true ) {
pattern = text1.substring( textLength - length );
found = text2.indexOf( pattern );
if ( found === -1 ) {
return best;
}
length += found;
if ( found === 0 || text1.substring( textLength - length ) ===
text2.substring( 0, length ) ) {
best = length;
length++;
}
}
};
/**
* Split two texts into an array of strings. Reduce the texts to a string of
* hashes where each Unicode character represents one line.
* @param {string} text1 First string.
* @param {string} text2 Second string.
* @return {{chars1: string, chars2: string, lineArray: !Array.<string>}}
* An object containing the encoded text1, the encoded text2 and
* the array of unique strings.
* The zeroth element of the array of unique strings is intentionally blank.
* @private
*/
DiffMatchPatch.prototype.diffLinesToChars = function( text1, text2 ) {
var lineArray, lineHash, chars1, chars2;
lineArray = []; // E.g. lineArray[4] === 'Hello\n'
lineHash = {}; // E.g. lineHash['Hello\n'] === 4
// '\x00' is a valid character, but various debuggers don't like it.
// So we'll insert a junk entry to avoid generating a null character.
lineArray[ 0 ] = "";
/**
* Split a text into an array of strings. Reduce the texts to a string of
* hashes where each Unicode character represents one line.
* Modifies linearray and linehash through being a closure.
* @param {string} text String to encode.
* @return {string} Encoded string.
* @private
*/
function diffLinesToCharsMunge( text ) {
var chars, lineStart, lineEnd, lineArrayLength, line;
chars = "";
// Walk the text, pulling out a substring for each line.
// text.split('\n') would would temporarily double our memory footprint.
// Modifying text would create many large strings to garbage collect.
lineStart = 0;
lineEnd = -1;
// Keeping our own length variable is faster than looking it up.
lineArrayLength = lineArray.length;
while ( lineEnd < text.length - 1 ) {
lineEnd = text.indexOf( "\n", lineStart );
if ( lineEnd === -1 ) {
lineEnd = text.length - 1;
}
line = text.substring( lineStart, lineEnd + 1 );
lineStart = lineEnd + 1;
if ( lineHash.hasOwnProperty ? lineHash.hasOwnProperty( line ) :
( lineHash[ line ] !== undefined ) ) {
chars += String.fromCharCode( lineHash[ line ] );
} else {
chars += String.fromCharCode( lineArrayLength );
lineHash[ line ] = lineArrayLength;
lineArray[ lineArrayLength++ ] = line;
}
}
return chars;
}
chars1 = diffLinesToCharsMunge( text1 );
chars2 = diffLinesToCharsMunge( text2 );
return {
chars1: chars1,
chars2: chars2,
lineArray: lineArray
};
};
/**
* Rehydrate the text in a diff from a string of line hashes to real lines of
* text.
* @param {!Array.<!DiffMatchPatch.Diff>} diffs Array of diff tuples.
* @param {!Array.<string>} lineArray Array of unique strings.
* @private
*/
DiffMatchPatch.prototype.diffCharsToLines = function( diffs, lineArray ) {
var x, chars, text, y;
for ( x = 0; x < diffs.length; x++ ) {
chars = diffs[ x ][ 1 ];
text = [];
for ( y = 0; y < chars.length; y++ ) {
text[ y ] = lineArray[ chars.charCodeAt( y ) ];
}
diffs[ x ][ 1 ] = text.join( "" );
}
};
/**
* Reorder and merge like edit sections. Merge equalities.
* Any edit section can move as long as it doesn't cross an equality.
* @param {!Array.<!DiffMatchPatch.Diff>} diffs Array of diff tuples.
*/
DiffMatchPatch.prototype.diffCleanupMerge = function( diffs ) {
var pointer, countDelete, countInsert, textInsert, textDelete,
commonlength, changes, diffPointer, position;
diffs.push( [ DIFF_EQUAL, "" ] ); // Add a dummy entry at the end.
pointer = 0;
countDelete = 0;
countInsert = 0;
textDelete = "";
textInsert = "";
commonlength;
while ( pointer < diffs.length ) {
switch ( diffs[ pointer ][ 0 ] ) {
case DIFF_INSERT:
countInsert++;
textInsert += diffs[ pointer ][ 1 ];
pointer++;
break;
case DIFF_DELETE:
countDelete++;
textDelete += diffs[ pointer ][ 1 ];
pointer++;
break;
case DIFF_EQUAL:
// Upon reaching an equality, check for prior redundancies.
if ( countDelete + countInsert > 1 ) {
if ( countDelete !== 0 && countInsert !== 0 ) {
// Factor out any common prefixes.
commonlength = this.diffCommonPrefix( textInsert, textDelete );
if ( commonlength !== 0 ) {
if ( ( pointer - countDelete - countInsert ) > 0 &&
diffs[ pointer - countDelete - countInsert - 1 ][ 0 ] ===
DIFF_EQUAL ) {
diffs[ pointer - countDelete - countInsert - 1 ][ 1 ] +=
textInsert.substring( 0, commonlength );
} else {
diffs.splice( 0, 0, [ DIFF_EQUAL,
textInsert.substring( 0, commonlength )
] );
pointer++;
}
textInsert = textInsert.substring( commonlength );
textDelete = textDelete.substring( commonlength );
}
// Factor out any common suffixies.
commonlength = this.diffCommonSuffix( textInsert, textDelete );
if ( commonlength !== 0 ) {
diffs[ pointer ][ 1 ] = textInsert.substring( textInsert.length -
commonlength ) + diffs[ pointer ][ 1 ];
textInsert = textInsert.substring( 0, textInsert.length -
commonlength );
textDelete = textDelete.substring( 0, textDelete.length -
commonlength );
}
}
// Delete the offending records and add the merged ones.
if ( countDelete === 0 ) {
diffs.splice( pointer - countInsert,
countDelete + countInsert, [ DIFF_INSERT, textInsert ] );
} else if ( countInsert === 0 ) {
diffs.splice( pointer - countDelete,
countDelete + countInsert, [ DIFF_DELETE, textDelete ] );
} else {
diffs.splice(
pointer - countDelete - countInsert,
countDelete + countInsert,
[ DIFF_DELETE, textDelete ], [ DIFF_INSERT, textInsert ]
);
}
pointer = pointer - countDelete - countInsert +
( countDelete ? 1 : 0 ) + ( countInsert ? 1 : 0 ) + 1;
} else if ( pointer !== 0 && diffs[ pointer - 1 ][ 0 ] === DIFF_EQUAL ) {
// Merge this equality with the previous one.
diffs[ pointer - 1 ][ 1 ] += diffs[ pointer ][ 1 ];
diffs.splice( pointer, 1 );
} else {
pointer++;
}
countInsert = 0;
countDelete = 0;
textDelete = "";
textInsert = "";
break;
}
}
if ( diffs[ diffs.length - 1 ][ 1 ] === "" ) {
diffs.pop(); // Remove the dummy entry at the end.
}
// Second pass: look for single edits surrounded on both sides by equalities
// which can be shifted sideways to eliminate an equality.
// e.g: A<ins>BA</ins>C -> <ins>AB</ins>AC
changes = false;
pointer = 1;
// Intentionally ignore the first and last element (don't need checking).
while ( pointer < diffs.length - 1 ) {
if ( diffs[ pointer - 1 ][ 0 ] === DIFF_EQUAL &&
diffs[ pointer + 1 ][ 0 ] === DIFF_EQUAL ) {
diffPointer = diffs[ pointer ][ 1 ];
position = diffPointer.substring(
diffPointer.length - diffs[ pointer - 1 ][ 1 ].length
);
// This is a single edit surrounded by equalities.
if ( position === diffs[ pointer - 1 ][ 1 ] ) {
// Shift the edit over the previous equality.
diffs[ pointer ][ 1 ] = diffs[ pointer - 1 ][ 1 ] +
diffs[ pointer ][ 1 ].substring( 0, diffs[ pointer ][ 1 ].length -
diffs[ pointer - 1 ][ 1 ].length );
diffs[ pointer + 1 ][ 1 ] =
diffs[ pointer - 1 ][ 1 ] + diffs[ pointer + 1 ][ 1 ];
diffs.splice( pointer - 1, 1 );
changes = true;
} else if ( diffPointer.substring( 0, diffs[ pointer + 1 ][ 1 ].length ) ===
diffs[ pointer + 1 ][ 1 ] ) {
// Shift the edit over the next equality.
diffs[ pointer - 1 ][ 1 ] += diffs[ pointer + 1 ][ 1 ];
diffs[ pointer ][ 1 ] =
diffs[ pointer ][ 1 ].substring( diffs[ pointer + 1 ][ 1 ].length ) +
diffs[ pointer + 1 ][ 1 ];
diffs.splice( pointer + 1, 1 );
changes = true;
}
}
pointer++;
}
// If shifts were made, the diff needs reordering and another shift sweep.
if ( changes ) {
this.diffCleanupMerge( diffs );
}
};
return function( o, n ) {
var diff, output, text;
diff = new DiffMatchPatch();
output = diff.DiffMain( o, n );
diff.diffCleanupEfficiency( output );
text = diff.diffPrettyHtml( output );
return text;
};
}() );
}() );
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