tests/phpunit/includes/CdbTest.php

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