diff options
Diffstat (limited to 'resources/lib/qunitjs/qunit.js')
| -rw-r--r-- | resources/lib/qunitjs/qunit.js | 1389 |
1 files changed, 1171 insertions, 218 deletions
diff --git a/resources/lib/qunitjs/qunit.js b/resources/lib/qunitjs/qunit.js index 006ca474..f3542ca9 100644 --- a/resources/lib/qunitjs/qunit.js +++ b/resources/lib/qunitjs/qunit.js @@ -1,12 +1,12 @@ /*! - * QUnit 1.17.1 + * QUnit 1.18.0 * http://qunitjs.com/ * * Copyright jQuery Foundation and other contributors * Released under the MIT license * http://jquery.org/license * - * Date: 2015-01-20T19:39Z + * Date: 2015-04-03T10:23Z */ (function( window ) { @@ -116,6 +116,9 @@ config = { // when enabled, all tests must call expect() requireExpects: false, + // depth up-to which object will be dumped + maxDepth: 5, + // add checkboxes that are persisted in the query-string // when enabled, the id is set to `true` as a `QUnit.config` property urlConfig: [ @@ -185,11 +188,17 @@ config.modules.push( config.currentModule ); // String search anywhere in moduleName+testName config.filter = urlParams.filter; + if ( urlParams.maxDepth ) { + config.maxDepth = parseInt( urlParams.maxDepth, 10 ) === -1 ? + Number.POSITIVE_INFINITY : + urlParams.maxDepth; + } + config.testId = []; if ( urlParams.testId ) { // Ensure that urlParams.testId is an array - urlParams.testId = [].concat( urlParams.testId ); + urlParams.testId = decodeURIComponent( urlParams.testId ).split( "," ); for ( i = 0; i < urlParams.testId.length; i++ ) { config.testId.push( urlParams.testId[ i ] ); } @@ -197,6 +206,9 @@ config.modules.push( config.currentModule ); // Figure out if we're running the tests from a server or not QUnit.isLocal = location.protocol === "file:"; + + // Expose the current QUnit version + QUnit.version = "1.18.0"; }()); // Root QUnit object. @@ -484,20 +496,14 @@ function done() { }); } -// Doesn't support IE6 to IE9 +// 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.stacktrace ) { - - // Opera 12.x - return e.stacktrace.split( "\n" )[ offset + 3 ]; - } else if ( e.stack ) { - - // Firefox, Chrome, Safari 6+, IE10+, PhantomJS and Node + if ( e.stack ) { stack = e.stack.split( "\n" ); if ( /^error$/i.test( stack[ 0 ] ) ) { stack.shift(); @@ -515,9 +521,10 @@ function extractStacktrace( e, offset ) { } } return stack[ offset ]; + + // Support: Safari <=6 only } else if ( e.sourceURL ) { - // Safari < 6 // exclude useless self-reference for generated Error objects if ( /qunit.js$/.test( e.sourceURL ) ) { return; @@ -529,16 +536,19 @@ function extractStacktrace( e, offset ) { } function sourceFromStacktrace( offset ) { - var e = new Error(); - if ( !e.stack ) { + 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 e; + throw error; } catch ( err ) { - // This should already be true in most browsers - e = err; + error = err; } } - return extractStacktrace( e, offset ); + + return extractStacktrace( error, offset ); } function synchronize( callback, last ) { @@ -1123,7 +1133,7 @@ Test.prototype = { valid: function() { var include, - filter = config.filter, + filter = config.filter && config.filter.toLowerCase(), module = QUnit.urlParams.module && QUnit.urlParams.module.toLowerCase(), fullName = ( this.module.name + ": " + this.testName ).toLowerCase(); @@ -1146,7 +1156,7 @@ Test.prototype = { include = filter.charAt( 0 ) !== "!"; if ( !include ) { - filter = filter.toLowerCase().slice( 1 ); + filter = filter.slice( 1 ); } // If the filter matches, we need to honour include @@ -1284,87 +1294,52 @@ QUnit.assert = Assert.prototype = { return assert.test.push.apply( assert.test, arguments ); }, - /** - * Asserts rough true-ish result. - * @name ok - * @function - * @example ok( "asdfasdf".length > 5, "There must be at least 5 chars" ); - */ ok: function( result, message ) { message = message || ( result ? "okay" : "failed, expected argument to be truthy, was: " + QUnit.dump.parse( result ) ); this.push( !!result, result, true, message ); }, - /** - * Assert that the first two arguments are equal, with an optional message. - * Prints out both actual and expected values. - * @name equal - * @function - * @example equal( format( "{0} bytes.", 2), "2 bytes.", "replaces {0} with next argument" ); - */ + notOk: function( result, message ) { + message = message || ( !result ? "okay" : "failed, expected argument to be falsy, was: " + + QUnit.dump.parse( result ) ); + this.push( !result, result, false, message ); + }, + equal: function( actual, expected, message ) { /*jshint eqeqeq:false */ this.push( expected == actual, actual, expected, message ); }, - /** - * @name notEqual - * @function - */ notEqual: function( actual, expected, message ) { /*jshint eqeqeq:false */ this.push( expected != actual, actual, expected, message ); }, - /** - * @name propEqual - * @function - */ propEqual: function( actual, expected, message ) { actual = objectValues( actual ); expected = objectValues( expected ); this.push( QUnit.equiv( actual, expected ), actual, expected, message ); }, - /** - * @name notPropEqual - * @function - */ notPropEqual: function( actual, expected, message ) { actual = objectValues( actual ); expected = objectValues( expected ); this.push( !QUnit.equiv( actual, expected ), actual, expected, message ); }, - /** - * @name deepEqual - * @function - */ deepEqual: function( actual, expected, message ) { this.push( QUnit.equiv( actual, expected ), actual, expected, message ); }, - /** - * @name notDeepEqual - * @function - */ notDeepEqual: function( actual, expected, message ) { this.push( !QUnit.equiv( actual, expected ), actual, expected, message ); }, - /** - * @name strictEqual - * @function - */ strictEqual: function( actual, expected, message ) { this.push( expected === actual, actual, expected, message ); }, - /** - * @name notStrictEqual - * @function - */ notStrictEqual: function( actual, expected, message ) { this.push( expected !== actual, actual, expected, message ); }, @@ -1372,7 +1347,8 @@ QUnit.assert = Assert.prototype = { "throws": function( block, expected, message ) { var actual, expectedType, expectedOutput = expected, - ok = false; + ok = false, + currentTest = ( this instanceof Assert && this.test ) || QUnit.config.current; // 'expected' is optional unless doing string comparison if ( message == null && typeof expected === "string" ) { @@ -1380,13 +1356,13 @@ QUnit.assert = Assert.prototype = { expected = null; } - this.test.ignoreGlobalErrors = true; + currentTest.ignoreGlobalErrors = true; try { - block.call( this.test.testEnvironment ); + block.call( currentTest.testEnvironment ); } catch (e) { actual = e; } - this.test.ignoreGlobalErrors = false; + currentTest.ignoreGlobalErrors = false; if ( actual ) { expectedType = QUnit.objectType( expected ); @@ -1419,11 +1395,9 @@ QUnit.assert = Assert.prototype = { expectedOutput = null; ok = true; } - - this.push( ok, actual, expectedOutput, message ); - } else { - this.test.pushFailure( message, null, "No exception was thrown." ); } + + currentTest.assert.push( ok, actual, expectedOutput, message ); } }; @@ -1783,7 +1757,7 @@ QUnit.dump = (function() { join: join, // depth: 1, - maxDepth: 5, + maxDepth: QUnit.config.maxDepth, // This is the list of parsers, to modify them, use dump.setParser parsers: { @@ -1830,7 +1804,7 @@ QUnit.dump = (function() { nonEnumerableProperties = [ "message", "name" ]; for ( i in nonEnumerableProperties ) { key = nonEnumerableProperties[ i ]; - if ( key in map && !( key in keys ) ) { + if ( key in map && inArray( key, keys ) < 0 ) { keys.push( key ); } } @@ -1949,6 +1923,7 @@ if ( typeof window !== "undefined" ) { "start", "stop", "ok", + "notOk", "equal", "notEqual", "propEqual", @@ -1981,6 +1956,13 @@ 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; @@ -1989,150 +1971,1088 @@ if ( typeof exports !== "undefined" && exports ) { /*istanbul ignore next */ // jscs:disable maximumLineLength /* - * Javascript Diff Algorithm - * By John Resig (http://ejohn.org/) - * Modified by Chu Alan "sprite" + * 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: * - * Released under the MIT license. + * Copyright 2006 Google Inc. + * http://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 + * + * http://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: - * http://ejohn.org/projects/javascript-diff-algorithm/ + * https://code.google.com/p/google-diff-match-patch/ * * Usage: QUnit.diff(expected, actual) * - * QUnit.diff( "the quick brown fox jumped over", "the quick fox jumps over" ) == "the quick <del>brown </del> fox <del>jumped </del><ins>jumps </ins> over" + * QUnit.diff( "the quick brown fox jumped over", "the quick fox jumps over" ) === "the quick <del>brown </del> fox jump<ins>s</ins><del>ed</del over" */ QUnit.diff = (function() { - var hasOwn = Object.prototype.hasOwnProperty; - - /*jshint eqeqeq:false, eqnull:true */ - function diff( o, n ) { - var i, - ns = {}, - os = {}; - - for ( i = 0; i < n.length; i++ ) { - if ( !hasOwn.call( ns, n[ i ] ) ) { - ns[ n[ i ] ] = { - rows: [], - o: null - }; - } - ns[ n[ i ] ].rows.push( i ); - } - - for ( i = 0; i < o.length; i++ ) { - if ( !hasOwn.call( os, o[ i ] ) ) { - os[ o[ i ] ] = { - rows: [], - n: null - }; - } - os[ o[ i ] ].rows.push( i ); - } - - for ( i in ns ) { - if ( hasOwn.call( ns, i ) ) { - if ( ns[ i ].rows.length === 1 && hasOwn.call( os, i ) && os[ i ].rows.length === 1 ) { - n[ ns[ i ].rows[ 0 ] ] = { - text: n[ ns[ i ].rows[ 0 ] ], - row: os[ i ].rows[ 0 ] - }; - o[ os[ i ].rows[ 0 ] ] = { - text: o[ os[ i ].rows[ 0 ] ], - row: ns[ i ].rows[ 0 ] - }; - } - } - } - for ( i = 0; i < n.length - 1; i++ ) { - if ( n[ i ].text != null && n[ i + 1 ].text == null && n[ i ].row + 1 < o.length && o[ n[ i ].row + 1 ].text == null && - n[ i + 1 ] == o[ n[ i ].row + 1 ] ) { - - n[ i + 1 ] = { - text: n[ i + 1 ], - row: n[ i ].row + 1 - }; - o[ n[ i ].row + 1 ] = { - text: o[ n[ i ].row + 1 ], - row: i + 1 - }; - } - } - - for ( i = n.length - 1; i > 0; i-- ) { - if ( n[ i ].text != null && n[ i - 1 ].text == null && n[ i ].row > 0 && o[ n[ i ].row - 1 ].text == null && - n[ i - 1 ] == o[ n[ i ].row - 1 ] ) { - - n[ i - 1 ] = { - text: n[ i - 1 ], - row: n[ i ].row - 1 - }; - o[ n[ i ].row - 1 ] = { - text: o[ n[ i ].row - 1 ], - row: i - 1 - }; - } - } - - return { - o: o, - n: n - }; - } - - return function( o, n ) { - o = o.replace( /\s+$/, "" ); - n = n.replace( /\s+$/, "" ); - - var i, pre, - str = "", - out = diff( o === "" ? [] : o.split( /\s+/ ), n === "" ? [] : n.split( /\s+/ ) ), - oSpace = o.match( /\s+/g ), - nSpace = n.match( /\s+/g ); - - if ( oSpace == null ) { - oSpace = [ " " ]; - } else { - oSpace.push( " " ); - } - - if ( nSpace == null ) { - nSpace = [ " " ]; - } else { - nSpace.push( " " ); - } - - if ( out.n.length === 0 ) { - for ( i = 0; i < out.o.length; i++ ) { - str += "<del>" + out.o[ i ] + oSpace[ i ] + "</del>"; - } - } else { - if ( out.n[ 0 ].text == null ) { - for ( n = 0; n < out.o.length && out.o[ n ].text == null; n++ ) { - str += "<del>" + out.o[ n ] + oSpace[ n ] + "</del>"; - } - } - - for ( i = 0; i < out.n.length; i++ ) { - if ( out.n[ i ].text == null ) { - str += "<ins>" + out.n[ i ] + nSpace[ i ] + "</ins>"; - } else { - - // `pre` initialized at top of scope - pre = ""; - - for ( n = out.n[ i ].row + 1; n < out.o.length && out.o[ n ].text == null; n++ ) { - pre += "<del>" + out.o[ n ] + oSpace[ n ] + "</del>"; - } - str += " " + out.n[ i ].text + nSpace[ i ] + pre; - } - } - } - - return str; - }; + function DiffMatchPatch() { + + // Defaults. + // Redefine these in your program to override the defaults. + + // Number of seconds to map a diff before giving up (0 for infinity). + this.DiffTimeout = 1.0; + // Cost of an empty edit operation in terms of edit characters. + this.DiffEditCost = 4; + } + + // 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. + * @param {number} optDeadline Optional time when the diff should be complete + * by. Used internally for recursive calls. Users should set DiffTimeout + * instead. + * @return {!Array.<!DiffMatchPatch.Diff>} Array of diff tuples. + */ + DiffMatchPatch.prototype.DiffMain = function( text1, text2, optChecklines, optDeadline ) { + var deadline, checklines, commonlength, + commonprefix, commonsuffix, diffs; + // Set a deadline by which time the diff must be complete. + if ( typeof optDeadline === "undefined" ) { + if ( this.DiffTimeout <= 0 ) { + optDeadline = Number.MAX_VALUE; + } else { + optDeadline = ( new Date() ).getTime() + this.DiffTimeout * 1000; + } + } + deadline = optDeadline; + + // 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 ) { + if ( diffs[ pointer ][ 0 ] === DIFF_EQUAL ) { // Equality found. + if ( diffs[ pointer ][ 1 ].length < this.DiffEditCost && ( 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; + } else { // An insertion or deletion. + 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 < this.DiffEditCost / 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>" + data + "</ins>"; + break; + case DIFF_DELETE: + html[x] = "<del>" + data + "</del>"; + break; + case DIFF_EQUAL: + html[x] = "<span>" + 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: http://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: http://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; + if (this.DiffTimeout <= 0) { + // Don't risk returning a non-optimal diff if we have unlimited time. + return null; + } + 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; + lengthInsertions1 = 0; // Reset the counters. + 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: http://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; + 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 prefixies. + 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) { + // This is a single edit surrounded by equalities. + if ( diffs[ pointer ][ 1 ].substring( diffs[ pointer ][ 1 ].length - + diffs[ pointer - 1 ][ 1 ].length ) === 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 ( diffs[ pointer ][ 1 ].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); + //console.log(output); + diff.diffCleanupEfficiency(output); + text = diff.diffPrettyHtml(output); + + return text; + }; }()); // jscs:enable @@ -2256,7 +3176,14 @@ function addEvent( elem, type, fn ) { } else if ( elem.attachEvent ) { // support: IE <9 - elem.attachEvent( "on" + type, fn ); + elem.attachEvent( "on" + type, function() { + var event = window.event; + if ( !event.target ) { + event.target = event.srcElement || document; + } + + fn.call( elem, event ); + }); } } @@ -2427,12 +3354,16 @@ function setUrl( params ) { } function applyUrlParams() { - var selectBox = id( "qunit-modulefilter" ), - selection = decodeURIComponent( selectBox.options[ selectBox.selectedIndex ].value ), + 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: ( selection === "" ) ? undefined : selection, + module: ( selectedModule === "" ) ? undefined : selectedModule, filter: ( filter === "" ) ? undefined : filter, // Remove testId filter @@ -2588,9 +3519,14 @@ function storeFixture() { function appendUserAgent() { var userAgent = id( "qunit-userAgent" ); + if ( userAgent ) { userAgent.innerHTML = ""; - userAgent.appendChild( document.createTextNode( navigator.userAgent ) ); + userAgent.appendChild( + document.createTextNode( + "QUnit " + QUnit.version + "; " + navigator.userAgent + ) + ); } } @@ -2733,7 +3669,7 @@ function getNameHtml( name, module ) { } QUnit.testStart(function( details ) { - var running, testBlock; + var running, testBlock, bad; testBlock = id( "qunit-test-output-" + details.testId ); if ( testBlock ) { @@ -2746,7 +3682,13 @@ QUnit.testStart(function( details ) { running = id( "qunit-testresult" ); if ( running ) { - running.innerHTML = "Running: <br />" + getNameHtml( details.name, details.module ); + 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 ); } }); @@ -2779,6 +3721,15 @@ QUnit.log(function( details ) { actual + "</pre></td></tr>" + "<tr class='test-diff'><th>Diff: </th><td><pre>" + QUnit.diff( expected, actual ) + "</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='" + setUrl({ maxDepth: -1 }) + "'>" + + "Rerun</a> without max depth.</p></td></tr>"; + } } if ( details.source ) { @@ -2863,13 +3814,15 @@ QUnit.testDone(function( details ) { } }); -if ( !defined.document || document.readyState === "complete" ) { +if ( defined.document ) { + if ( document.readyState === "complete" ) { + QUnit.load(); + } else { + addEvent( window, "load", QUnit.load ); + } +} else { config.pageLoaded = true; config.autorun = true; } -if ( defined.document ) { - addEvent( window, "load", QUnit.load ); -} - })(); |