tests/phpunit/includes/diff/DifferenceEngineTest.php

   1 <?php
   2
   3 /**
   4  * @covers DifferenceEngine
   5  *
   6  * @todo tests for the rest of DifferenceEngine!
   7  *
   8  * @group Database
   9  * @group Diff
  10  *
  11  * @licence GNU GPL v2+
  12  * @author Katie Filbert < aude.wiki@gmail.com >
  13  */
  14 class DifferenceEngineTest extends MediaWikiTestCase {
  15
  16         protected $context;
  17
  18         private static $revisions;
  19
  20         protected function setUp() {
  21                 parent::setUp();
  22
  23                 $title = $this->getTitle();
  24
  25                 $this->context = new RequestContext();
  26                 $this->context->setTitle( $title );
  27
  28                 if ( !self::$revisions ) {
  29                         self::$revisions = $this->doEdits();
  30                 }
  31         }
  32
  33         /**
  34          * @return Title
  35          */
  36         protected function getTitle() {
  37                 $namespace = $this->getDefaultWikitextNS();
  38                 return Title::newFromText( 'Kitten', $namespace );
  39         }
  40
  41         /**
  42          * @return int[] Revision ids
  43          */
  44         protected function doEdits() {
  45                 $title = $this->getTitle();
  46                 $page = WikiPage::factory( $title );
  47
  48                 $strings = array( "it is a kitten", "two kittens", "three kittens", "four kittens" );
  49                 $revisions = array();
  50
  51                 foreach ( $strings as $string ) {
  52                         $content = ContentHandler::makeContent( $string, $title );
  53                         $page->doEditContent( $content, 'edit page' );
  54                         $revisions[] = $page->getLatest();
  55                 }
  56
  57                 return $revisions;
  58         }
  59
  60         public function testMapDiffPrevNext() {
  61                 $cases = $this->getMapDiffPrevNextCases();
  62
  63                 foreach ( $cases as $case ) {
  64                         list( $expected, $old, $new, $message ) = $case;
  65
  66                         $diffEngine = new DifferenceEngine( $this->context, $old, $new, 2, true, false );
  67                         $diffMap = $diffEngine->mapDiffPrevNext( $old, $new );
  68                         $this->assertEquals( $expected, $diffMap, $message );
  69                 }
  70         }
  71
  72         private function getMapDiffPrevNextCases() {
  73                 $revs = self::$revisions;
  74
  75                 return array(
  76                         array( array( $revs[1], $revs[2] ), $revs[2], 'prev', 'diff=prev' ),
  77                         array( array( $revs[2], $revs[3] ), $revs[2], 'next', 'diff=next' ),
  78                         array( array( $revs[1], $revs[3] ), $revs[1], $revs[3], 'diff=' . $revs[3] )
  79                 );
  80         }
  81
  82         public function testLoadRevisionData() {
  83                 $cases = $this->getLoadRevisionDataCases();
  84
  85                 foreach ( $cases as $case ) {
  86                         list( $expectedOld, $expectedNew, $old, $new, $message ) = $case;
  87
  88                         $diffEngine = new DifferenceEngine( $this->context, $old, $new, 2, true, false );
  89                         $diffEngine->loadRevisionData();
  90
  91                         $this->assertEquals( $diffEngine->getOldid(), $expectedOld, $message );
  92                         $this->assertEquals( $diffEngine->getNewid(), $expectedNew, $message );
  93                 }
  94         }
  95
  96         private function getLoadRevisionDataCases() {
  97                 $revs = self::$revisions;
  98
  99                 return array(
 100                         array( $revs[2], $revs[3], $revs[3], 'prev', 'diff=prev' ),
 101                         array( $revs[2], $revs[3], $revs[2], 'next', 'diff=next' ),
 102                         array( $revs[1], $revs[3], $revs[1], $revs[3], 'diff=' . $revs[3] ),
 103                         array( $revs[1], $revs[3], $revs[1], 0, 'diff=0' )
 104                 );
 105         }
 106
 107         public function testGetOldid() {
 108                 $revs = self::$revisions;
 109
 110                 $diffEngine = new DifferenceEngine( $this->context, $revs[1], $revs[2], 2, true, false );
 111                 $this->assertEquals( $revs[1], $diffEngine->getOldid(), 'diff get old id' );
 112         }
 113
 114         public function testGetNewid() {
 115                 $revs = self::$revisions;
 116
 117                 $diffEngine = new DifferenceEngine( $this->context, $revs[1], $revs[2], 2, true, false );
 118                 $this->assertEquals( $revs[2], $diffEngine->getNewid(), 'diff get new id' );
 119         }
 120
 121 }