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