tests/phpunit/includes/CdbTest.php

   1 <?php
   2
   3 /**
   4  * Test the CDB reader/writer
   5  */
   6 class CdbTest extends MediaWikiTestCase {
   7
   8         protected function setUp() {
   9                 parent::setUp();
  10                 if ( !CdbReader::haveExtension() ) {
  11                         $this->markTestSkipped( 'Native CDB support is not available' );
  12                 }
  13         }
  14
  15         /**
  16          * @group medium
  17          */
  18         public function testCdb() {
  19                 $dir = wfTempDir();
  20                 if ( !is_writable( $dir ) ) {
  21                         $this->markTestSkipped( "Temp dir isn't writable" );
  22                 }
  23
  24                 $phpcdbfile = $this->getNewTempFile();
  25                 $dbacdbfile = $this->getNewTempFile();
  26
  27                 $w1 = new CdbWriter_PHP( $phpcdbfile );
  28                 $w2 = new CdbWriter_DBA( $dbacdbfile );
  29
  30                 $data = array();
  31                 for ( $i = 0; $i < 1000; $i++ ) {
  32                         $key = $this->randomString();
  33                         $value = $this->randomString();
  34                         $w1->set( $key, $value );
  35                         $w2->set( $key, $value );
  36
  37                         if ( !isset( $data[$key] ) ) {
  38                                 $data[$key] = $value;
  39                         }
  40                 }
  41
  42                 $w1->close();
  43                 $w2->close();
  44
  45                 $this->assertEquals(
  46                         md5_file( $phpcdbfile ),
  47                         md5_file( $dbacdbfile ),
  48                         'same hash'
  49                 );
  50
  51                 $r1 = new CdbReader_PHP( $phpcdbfile );
  52                 $r2 = new CdbReader_DBA( $dbacdbfile );
  53
  54                 foreach ( $data as $key => $value ) {
  55                         if ( $key === '' ) {
  56                                 // Known bug
  57                                 continue;
  58                         }
  59                         $v1 = $r1->get( $key );
  60                         $v2 = $r2->get( $key );
  61
  62                         $v1 = $v1 === false ? '(not found)' : $v1;
  63                         $v2 = $v2 === false ? '(not found)' : $v2;
  64
  65                         # cdbAssert( 'Mismatch', $key, $v1, $v2 );
  66                         $this->cdbAssert( "PHP error", $key, $v1, $value );
  67                         $this->cdbAssert( "DBA error", $key, $v2, $value );
  68                 }
  69         }
  70
  71         private function randomString() {
  72                 $len = mt_rand( 0, 10 );
  73                 $s = '';
  74                 for ( $j = 0; $j < $len; $j++ ) {
  75                         $s .= chr( mt_rand( 0, 255 ) );
  76                 }
  77
  78                 return $s;
  79         }
  80
  81         private function cdbAssert( $msg, $key, $v1, $v2 ) {
  82                 $this->assertEquals(
  83                         $v2,
  84                         $v1,
  85                         $msg . ', k=' . bin2hex( $key )
  86                 );
  87         }
  88 }