merged master
[lhc/web/wiklou.git] / tests / phpunit / includes / filerepo / FileBackendTest.php
index 710ad83..0b36bf1 100644 (file)
@@ -1,6 +1,9 @@
 <?php
 
 /**
+ * @group medium
+ * ^---- causes phpunit to use a higher timeout threshold
+ * 
  * @group FileRepo
  * @group FileBackend
  */
@@ -26,6 +29,9 @@ class FileBackendTest extends MediaWikiTestCase {
                                        }
                                }
                                $useConfig['name'] = 'localtesting'; // swap name
+                               $useConfig['shardViaHashLevels'] = array( // test sharding
+                                       'unittest-cont1' => array( 'levels' => 1, 'base' => 16, 'repeat' => 1 )
+                               );
                                $class = $useConfig['class'];
                                self::$backendToUse = new $class( $useConfig );
                                $this->singleBackend = self::$backendToUse;
@@ -240,13 +246,15 @@ class FileBackendTest extends MediaWikiTestCase {
                $props2 = $this->backend->getFileProps( array( 'src' => $dest ) );
                $this->assertEquals( $props1, $props2,
                        "Source and destination have the same props ($backendName)." );
+
+               $this->assertBackendPathsConsistent( array( $dest ) );
        }
 
        public function provider_testStore() {
                $cases = array();
 
                $tmpName = TempFSFile::factory( "unittests_", 'txt' )->getPath();
-               $toPath = $this->baseStorePath() . '/unittest-cont1/fun/obj1.txt';
+               $toPath = $this->baseStorePath() . '/unittest-cont1/e/fun/obj1.txt';
                $op = array( 'op' => 'store', 'src' => $tmpName, 'dst' => $toPath );
                $cases[] = array(
                        $op, // operation
@@ -327,13 +335,15 @@ class FileBackendTest extends MediaWikiTestCase {
                $props2 = $this->backend->getFileProps( array( 'src' => $dest ) );
                $this->assertEquals( $props1, $props2,
                        "Source and destination have the same props ($backendName)." );
+
+               $this->assertBackendPathsConsistent( array( $source, $dest ) );
        }
 
        public function provider_testCopy() {
                $cases = array();
 
-               $source = $this->baseStorePath() . '/unittest-cont1/file.txt';
-               $dest = $this->baseStorePath() . '/unittest-cont2/fileMoved.txt';
+               $source = $this->baseStorePath() . '/unittest-cont1/e/file.txt';
+               $dest = $this->baseStorePath() . '/unittest-cont2/a/fileMoved.txt';
 
                $op = array( 'op' => 'copy', 'src' => $source, 'dst' => $dest );
                $cases[] = array(
@@ -416,13 +426,15 @@ class FileBackendTest extends MediaWikiTestCase {
                        "Source file does not exist accourding to props ($backendName)." );
                $this->assertEquals( true, $props2['fileExists'],
                        "Destination file exists accourding to props ($backendName)." );
+
+               $this->assertBackendPathsConsistent( array( $source, $dest ) );
        }
 
        public function provider_testMove() {
                $cases = array();
 
-               $source = $this->baseStorePath() . '/unittest-cont1/file.txt';
-               $dest = $this->baseStorePath() . '/unittest-cont2/fileMoved.txt';
+               $source = $this->baseStorePath() . '/unittest-cont1/e/file.txt';
+               $dest = $this->baseStorePath() . '/unittest-cont2/a/fileMoved.txt';
 
                $op = array( 'op' => 'move', 'src' => $source, 'dst' => $dest );
                $cases[] = array(
@@ -501,12 +513,14 @@ class FileBackendTest extends MediaWikiTestCase {
                $props1 = $this->backend->getFileProps( array( 'src' => $source ) );
                $this->assertFalse( $props1['fileExists'],
                        "Source file $source does not exist according to props ($backendName)." );
+
+               $this->assertBackendPathsConsistent( array( $source ) );
        }
 
        public function provider_testDelete() {
                $cases = array();
 
-               $source = $this->baseStorePath() . '/unittest-cont1/myfacefile.txt';
+               $source = $this->baseStorePath() . '/unittest-cont1/e/myfacefile.txt';
 
                $op = array( 'op' => 'delete', 'src' => $source );
                $cases[] = array(
@@ -592,6 +606,8 @@ class FileBackendTest extends MediaWikiTestCase {
                                $this->backend->getFileSize( array( 'src' => $dest ) ),
                                "Destination file $dest has original size according to props ($backendName)." );
                }
+
+               $this->assertBackendPathsConsistent( array( $dest ) );
        }
 
        /**
@@ -600,7 +616,7 @@ class FileBackendTest extends MediaWikiTestCase {
        public function provider_testCreate() {
                $cases = array();
 
-               $dest = $this->baseStorePath() . '/unittest-cont2/myspacefile.txt';
+               $dest = $this->baseStorePath() . '/unittest-cont2/a/myspacefile.txt';
 
                $op = array( 'op' => 'create', 'content' => 'test test testing', 'dst' => $dest );
                $cases[] = array(
@@ -666,9 +682,9 @@ class FileBackendTest extends MediaWikiTestCase {
 
                $base = $this->baseStorePath();
                $files = array(
-                       "$base/unittest-cont1/fileA.a",
-                       "$base/unittest-cont1/fileB.a",
-                       "$base/unittest-cont1/fileC.a"
+                       "$base/unittest-cont1/e/fileA.a",
+                       "$base/unittest-cont1/e/fileB.a",
+                       "$base/unittest-cont1/e/fileC.a"
                );
                $ops = array();
                $purgeOps = array();
@@ -786,16 +802,16 @@ class FileBackendTest extends MediaWikiTestCase {
                $rand = mt_rand( 0, 2000000000 ) . time();
                $dest = wfTempDir() . "/randomfile!$rand.txt";
                $srcs = array(
-                       $this->baseStorePath() . '/unittest-cont1/file1.txt',
-                       $this->baseStorePath() . '/unittest-cont1/file2.txt',
-                       $this->baseStorePath() . '/unittest-cont1/file3.txt',
-                       $this->baseStorePath() . '/unittest-cont1/file4.txt',
-                       $this->baseStorePath() . '/unittest-cont1/file5.txt',
-                       $this->baseStorePath() . '/unittest-cont1/file6.txt',
-                       $this->baseStorePath() . '/unittest-cont1/file7.txt',
-                       $this->baseStorePath() . '/unittest-cont1/file8.txt',
-                       $this->baseStorePath() . '/unittest-cont1/file9.txt',
-                       $this->baseStorePath() . '/unittest-cont1/file10.txt'
+                       $this->baseStorePath() . '/unittest-cont1/e/file1.txt',
+                       $this->baseStorePath() . '/unittest-cont1/e/file2.txt',
+                       $this->baseStorePath() . '/unittest-cont1/e/file3.txt',
+                       $this->baseStorePath() . '/unittest-cont1/e/file4.txt',
+                       $this->baseStorePath() . '/unittest-cont1/e/file5.txt',
+                       $this->baseStorePath() . '/unittest-cont1/e/file6.txt',
+                       $this->baseStorePath() . '/unittest-cont1/e/file7.txt',
+                       $this->baseStorePath() . '/unittest-cont1/e/file8.txt',
+                       $this->baseStorePath() . '/unittest-cont1/e/file9.txt',
+                       $this->baseStorePath() . '/unittest-cont1/e/file10.txt'
                );
                $content = array(
                        'egfage',
@@ -884,9 +900,9 @@ class FileBackendTest extends MediaWikiTestCase {
                $cases = array();
 
                $base = $this->baseStorePath();
-               $cases[] = array( "$base/unittest-cont1/b/z/some_file.txt", "some file contents", true );
-               $cases[] = array( "$base/unittest-cont1/b/some-other_file.txt", "", true );
-               $cases[] = array( "$base/unittest-cont1/b/some-diff_file.txt", null, false );
+               $cases[] = array( "$base/unittest-cont1/e/b/z/some_file.txt", "some file contents", true );
+               $cases[] = array( "$base/unittest-cont1/e/b/some-other_file.txt", "", true );
+               $cases[] = array( "$base/unittest-cont1/e/b/some-diff_file.txt", null, false );
 
                return $cases;
        }
@@ -930,8 +946,8 @@ class FileBackendTest extends MediaWikiTestCase {
                $cases = array();
 
                $base = $this->baseStorePath();
-               $cases[] = array( "$base/unittest-cont1/b/z/some_file.txt", "some file contents" );
-               $cases[] = array( "$base/unittest-cont1/b/some-other_file.txt", "more file contents" );
+               $cases[] = array( "$base/unittest-cont1/e/b/z/some_file.txt", "some file contents" );
+               $cases[] = array( "$base/unittest-cont1/e/b/some-other_file.txt", "more file contents" );
 
                return $cases;
        }
@@ -973,8 +989,8 @@ class FileBackendTest extends MediaWikiTestCase {
                $cases = array();
 
                $base = $this->baseStorePath();
-               $cases[] = array( "$base/unittest-cont1/a/z/some_file.txt", "some file contents" );
-               $cases[] = array( "$base/unittest-cont1/a/some-other_file.txt", "more file contents" );
+               $cases[] = array( "$base/unittest-cont1/e/a/z/some_file.txt", "some file contents" );
+               $cases[] = array( "$base/unittest-cont1/e/a/some-other_file.txt", "more file contents" );
 
                return $cases;
        }
@@ -1015,8 +1031,8 @@ class FileBackendTest extends MediaWikiTestCase {
                $cases = array();
 
                $base = $this->baseStorePath();
-               $cases[] = array( "$base/unittest-cont1/a/z/some_file.txt", "some file contents" );
-               $cases[] = array( "$base/unittest-cont1/a/some-other_file.txt", "more file contents" );
+               $cases[] = array( "$base/unittest-cont1/e/a/z/some_file.txt", "some file contents" );
+               $cases[] = array( "$base/unittest-cont1/e/a/some-other_file.txt", "more file contents" );
 
                return $cases;
        }
@@ -1037,7 +1053,7 @@ class FileBackendTest extends MediaWikiTestCase {
        function provider_testPrepareAndClean() {
                $base = $this->baseStorePath();
                return array(
-                       array( "$base/unittest-cont1/a/z/some_file1.txt", true ),
+                       array( "$base/unittest-cont1/e/a/z/some_file1.txt", true ),
                        array( "$base/unittest-cont2/a/z/some_file2.txt", true ),
                        # Specific to FS backend with no basePath field set
                        #array( "$base/unittest-cont3/a/z/some_file3.txt", false ),
@@ -1085,18 +1101,18 @@ class FileBackendTest extends MediaWikiTestCase {
 
                $base = $this->baseStorePath();
                $dirs = array(
-                       "$base/unittest-cont1/a",
-                       "$base/unittest-cont1/a/b",
-                       "$base/unittest-cont1/a/b/c",
-                       "$base/unittest-cont1/a/b/c/d0",
-                       "$base/unittest-cont1/a/b/c/d1",
-                       "$base/unittest-cont1/a/b/c/d2",
-                       "$base/unittest-cont1/a/b/c/d0/1",
-                       "$base/unittest-cont1/a/b/c/d0/2",
-                       "$base/unittest-cont1/a/b/c/d1/3",
-                       "$base/unittest-cont1/a/b/c/d1/4",
-                       "$base/unittest-cont1/a/b/c/d2/5",
-                       "$base/unittest-cont1/a/b/c/d2/6"
+                       "$base/unittest-cont1/e/a",
+                       "$base/unittest-cont1/e/a/b",
+                       "$base/unittest-cont1/e/a/b/c",
+                       "$base/unittest-cont1/e/a/b/c/d0",
+                       "$base/unittest-cont1/e/a/b/c/d1",
+                       "$base/unittest-cont1/e/a/b/c/d2",
+                       "$base/unittest-cont1/e/a/b/c/d0/1",
+                       "$base/unittest-cont1/e/a/b/c/d0/2",
+                       "$base/unittest-cont1/e/a/b/c/d1/3",
+                       "$base/unittest-cont1/e/a/b/c/d1/4",
+                       "$base/unittest-cont1/e/a/b/c/d2/5",
+                       "$base/unittest-cont1/e/a/b/c/d2/6"
                );
                foreach ( $dirs as $dir ) {
                        $status = $this->prepare( array( 'dir' => $dir ) );
@@ -1134,38 +1150,18 @@ class FileBackendTest extends MediaWikiTestCase {
                $this->tearDownFiles();
                $this->doTestDoOperations();
                $this->tearDownFiles();
-
-               $this->backend = $this->singleBackend;
-               $this->tearDownFiles();
-               $this->doTestDoOperations2();
-               $this->tearDownFiles();
-
-               $this->backend = $this->multiBackend;
-               $this->tearDownFiles();
-               $this->doTestDoOperations2();
-               $this->tearDownFiles();
-
-               $this->backend = $this->singleBackend;
-               $this->tearDownFiles();
-               $this->doTestDoOperationsFailing();
-               $this->tearDownFiles();
-
-               $this->backend = $this->multiBackend;
-               $this->tearDownFiles();
-               $this->doTestDoOperationsFailing();
-               $this->tearDownFiles();
        }
 
        private function doTestDoOperations() {
                $base = $this->baseStorePath();
 
-               $fileA = "$base/unittest-cont1/a/b/fileA.txt";
+               $fileA = "$base/unittest-cont1/e/a/b/fileA.txt";
                $fileAContents = '3tqtmoeatmn4wg4qe-mg3qt3 tq';
-               $fileB = "$base/unittest-cont1/a/b/fileB.txt";
+               $fileB = "$base/unittest-cont1/e/a/b/fileB.txt";
                $fileBContents = 'g-jmq3gpqgt3qtg q3GT ';
-               $fileC = "$base/unittest-cont1/a/b/fileC.txt";
+               $fileC = "$base/unittest-cont1/e/a/b/fileC.txt";
                $fileCContents = 'eigna[ogmewt 3qt g3qg flew[ag';
-               $fileD = "$base/unittest-cont1/a/b/fileD.txt";
+               $fileD = "$base/unittest-cont1/e/a/b/fileD.txt";
 
                $this->prepare( array( 'dir' => dirname( $fileA ) ) );
                $this->create( array( 'dst' => $fileA, 'content' => $fileAContents ) );
@@ -1229,8 +1225,20 @@ class FileBackendTest extends MediaWikiTestCase {
                        "Correct file SHA-1 of $fileC" );
        }
 
+       public function testDoOperationsPipeline() {
+               $this->backend = $this->singleBackend;
+               $this->tearDownFiles();
+               $this->doTestDoOperationsPipeline();
+               $this->tearDownFiles();
+
+               $this->backend = $this->multiBackend;
+               $this->tearDownFiles();
+               $this->doTestDoOperationsPipeline();
+               $this->tearDownFiles();
+       }
+
        // concurrency orientated
-       private function doTestDoOperations2() {
+       private function doTestDoOperationsPipeline() {
                $base = $this->baseStorePath();
 
                $fileAContents = '3tqtmoeatmn4wg4qe-mg3qt3 tq';
@@ -1248,10 +1256,10 @@ class FileBackendTest extends MediaWikiTestCase {
                $this->filesToPrune[] = $tmpNameB; # avoid file leaking
                $this->filesToPrune[] = $tmpNameC; # avoid file leaking
 
-               $fileA = "$base/unittest-cont1/a/b/fileA.txt";
-               $fileB = "$base/unittest-cont1/a/b/fileB.txt";
-               $fileC = "$base/unittest-cont1/a/b/fileC.txt";
-               $fileD = "$base/unittest-cont1/a/b/fileD.txt";
+               $fileA = "$base/unittest-cont1/e/a/b/fileA.txt";
+               $fileB = "$base/unittest-cont1/e/a/b/fileB.txt";
+               $fileC = "$base/unittest-cont1/e/a/b/fileC.txt";
+               $fileD = "$base/unittest-cont1/e/a/b/fileD.txt";
 
                $this->prepare( array( 'dir' => dirname( $fileA ) ) );
                $this->create( array( 'dst' => $fileA, 'content' => $fileAContents ) );
@@ -1316,6 +1324,18 @@ class FileBackendTest extends MediaWikiTestCase {
                        "Correct file SHA-1 of $fileC" );
        }
 
+       public function testDoOperationsFailing() {
+               $this->backend = $this->singleBackend;
+               $this->tearDownFiles();
+               $this->doTestDoOperationsFailing();
+               $this->tearDownFiles();
+
+               $this->backend = $this->multiBackend;
+               $this->tearDownFiles();
+               $this->doTestDoOperationsFailing();
+               $this->tearDownFiles();
+       }
+
        private function doTestDoOperationsFailing() {
                $base = $this->baseStorePath();
 
@@ -1398,20 +1418,20 @@ class FileBackendTest extends MediaWikiTestCase {
                $iter = $this->backend->getFileList( array( 'dir' => "$base/unittest-cont-notexists" ) );
 
                $files = array(
-                       "$base/unittest-cont1/test1.txt",
-                       "$base/unittest-cont1/test2.txt",
-                       "$base/unittest-cont1/test3.txt",
-                       "$base/unittest-cont1/subdir1/test1.txt",
-                       "$base/unittest-cont1/subdir1/test2.txt",
-                       "$base/unittest-cont1/subdir2/test3.txt",
-                       "$base/unittest-cont1/subdir2/test4.txt",
-                       "$base/unittest-cont1/subdir2/subdir/test1.txt",
-                       "$base/unittest-cont1/subdir2/subdir/test2.txt",
-                       "$base/unittest-cont1/subdir2/subdir/test3.txt",
-                       "$base/unittest-cont1/subdir2/subdir/test4.txt",
-                       "$base/unittest-cont1/subdir2/subdir/test5.txt",
-                       "$base/unittest-cont1/subdir2/subdir/sub/test0.txt",
-                       "$base/unittest-cont1/subdir2/subdir/sub/120-px-file.txt",
+                       "$base/unittest-cont1/e/test1.txt",
+                       "$base/unittest-cont1/e/test2.txt",
+                       "$base/unittest-cont1/e/test3.txt",
+                       "$base/unittest-cont1/e/subdir1/test1.txt",
+                       "$base/unittest-cont1/e/subdir1/test2.txt",
+                       "$base/unittest-cont1/e/subdir2/test3.txt",
+                       "$base/unittest-cont1/e/subdir2/test4.txt",
+                       "$base/unittest-cont1/e/subdir2/subdir/test1.txt",
+                       "$base/unittest-cont1/e/subdir2/subdir/test2.txt",
+                       "$base/unittest-cont1/e/subdir2/subdir/test3.txt",
+                       "$base/unittest-cont1/e/subdir2/subdir/test4.txt",
+                       "$base/unittest-cont1/e/subdir2/subdir/test5.txt",
+                       "$base/unittest-cont1/e/subdir2/subdir/sub/test0.txt",
+                       "$base/unittest-cont1/e/subdir2/subdir/sub/120-px-file.txt",
                );
 
                // Add the files
@@ -1428,20 +1448,20 @@ class FileBackendTest extends MediaWikiTestCase {
 
                // Expected listing
                $expected = array(
-                       "test1.txt",
-                       "test2.txt",
-                       "test3.txt",
-                       "subdir1/test1.txt",
-                       "subdir1/test2.txt",
-                       "subdir2/test3.txt",
-                       "subdir2/test4.txt",
-                       "subdir2/subdir/test1.txt",
-                       "subdir2/subdir/test2.txt",
-                       "subdir2/subdir/test3.txt",
-                       "subdir2/subdir/test4.txt",
-                       "subdir2/subdir/test5.txt",
-                       "subdir2/subdir/sub/test0.txt",
-                       "subdir2/subdir/sub/120-px-file.txt",
+                       "e/test1.txt",
+                       "e/test2.txt",
+                       "e/test3.txt",
+                       "e/subdir1/test1.txt",
+                       "e/subdir1/test2.txt",
+                       "e/subdir2/test3.txt",
+                       "e/subdir2/test4.txt",
+                       "e/subdir2/subdir/test1.txt",
+                       "e/subdir2/subdir/test2.txt",
+                       "e/subdir2/subdir/test3.txt",
+                       "e/subdir2/subdir/test4.txt",
+                       "e/subdir2/subdir/test5.txt",
+                       "e/subdir2/subdir/sub/test0.txt",
+                       "e/subdir2/subdir/sub/120-px-file.txt",
                );
                sort( $expected );
 
@@ -1479,7 +1499,7 @@ class FileBackendTest extends MediaWikiTestCase {
 
                // Actual listing (no trailing slash)
                $list = array();
-               $iter = $this->backend->getFileList( array( 'dir' => "$base/unittest-cont1/subdir2/subdir" ) );
+               $iter = $this->backend->getFileList( array( 'dir' => "$base/unittest-cont1/e/subdir2/subdir" ) );
                foreach ( $iter as $file ) {
                        $list[] = $file;
                }
@@ -1489,7 +1509,7 @@ class FileBackendTest extends MediaWikiTestCase {
 
                // Actual listing (with trailing slash)
                $list = array();
-               $iter = $this->backend->getFileList( array( 'dir' => "$base/unittest-cont1/subdir2/subdir/" ) );
+               $iter = $this->backend->getFileList( array( 'dir' => "$base/unittest-cont1/e/subdir2/subdir/" ) );
                foreach ( $iter as $file ) {
                        $list[] = $file;
                }
@@ -1518,7 +1538,7 @@ class FileBackendTest extends MediaWikiTestCase {
 
                // Actual listing (top files only)
                $list = array();
-               $iter = $this->backend->getTopFileList( array( 'dir' => "$base/unittest-cont1/subdir2/subdir" ) );
+               $iter = $this->backend->getTopFileList( array( 'dir' => "$base/unittest-cont1/e/subdir2/subdir" ) );
                foreach ( $iter as $file ) {
                        $list[] = $file;
                }
@@ -1551,20 +1571,20 @@ class FileBackendTest extends MediaWikiTestCase {
 
                $base = $this->baseStorePath();
                $files = array(
-                       "$base/unittest-cont1/test1.txt",
-                       "$base/unittest-cont1/test2.txt",
-                       "$base/unittest-cont1/test3.txt",
-                       "$base/unittest-cont1/subdir1/test1.txt",
-                       "$base/unittest-cont1/subdir1/test2.txt",
-                       "$base/unittest-cont1/subdir2/test3.txt",
-                       "$base/unittest-cont1/subdir2/test4.txt",
-                       "$base/unittest-cont1/subdir2/subdir/test1.txt",
-                       "$base/unittest-cont1/subdir3/subdir/test2.txt",
-                       "$base/unittest-cont1/subdir4/subdir/test3.txt",
-                       "$base/unittest-cont1/subdir4/subdir/test4.txt",
-                       "$base/unittest-cont1/subdir4/subdir/test5.txt",
-                       "$base/unittest-cont1/subdir4/subdir/sub/test0.txt",
-                       "$base/unittest-cont1/subdir4/subdir/sub/120-px-file.txt",
+                       "$base/unittest-cont1/e/test1.txt",
+                       "$base/unittest-cont1/e/test2.txt",
+                       "$base/unittest-cont1/e/test3.txt",
+                       "$base/unittest-cont1/e/subdir1/test1.txt",
+                       "$base/unittest-cont1/e/subdir1/test2.txt",
+                       "$base/unittest-cont1/e/subdir2/test3.txt",
+                       "$base/unittest-cont1/e/subdir2/test4.txt",
+                       "$base/unittest-cont1/e/subdir2/subdir/test1.txt",
+                       "$base/unittest-cont1/e/subdir3/subdir/test2.txt",
+                       "$base/unittest-cont1/e/subdir4/subdir/test3.txt",
+                       "$base/unittest-cont1/e/subdir4/subdir/test4.txt",
+                       "$base/unittest-cont1/e/subdir4/subdir/test5.txt",
+                       "$base/unittest-cont1/e/subdir4/subdir/sub/test0.txt",
+                       "$base/unittest-cont1/e/subdir4/subdir/sub/120-px-file.txt",
                );
 
                // Add the files
@@ -1579,6 +1599,32 @@ class FileBackendTest extends MediaWikiTestCase {
                $this->assertEquals( true, $status->isOK(),
                        "Creation of files succeeded with OK status ($backendName)." );
 
+               $this->assertEquals( true,
+                       $this->backend->directoryExists( array( 'dir' => "$base/unittest-cont1/e/subdir1" ) ),
+                       "Directory exists in ($backendName)." );
+               $this->assertEquals( true,
+                       $this->backend->directoryExists( array( 'dir' => "$base/unittest-cont1/e/subdir2/subdir" ) ),
+                       "Directory exists in ($backendName)." );
+               $this->assertEquals( false,
+                       $this->backend->directoryExists( array( 'dir' => "$base/unittest-cont1/e/subdir2/test1.txt" ) ),
+                       "Directory does not exists in ($backendName)." );
+
+               // Expected listing
+               $expected = array(
+                       "e",
+               );
+               sort( $expected );
+
+               // Actual listing (no trailing slash)
+               $list = array();
+               $iter = $this->backend->getTopDirectoryList( array( 'dir' => "$base/unittest-cont1" ) );
+               foreach ( $iter as $file ) {
+                       $list[] = $file;
+               }
+               sort( $list );
+
+               $this->assertEquals( $expected, $list, "Correct top dir listing ($backendName)." );
+
                // Expected listing
                $expected = array(
                        "subdir1",
@@ -1588,19 +1634,9 @@ class FileBackendTest extends MediaWikiTestCase {
                );
                sort( $expected );
 
-               $this->assertEquals( true,
-                       $this->backend->directoryExists( array( 'dir' => "$base/unittest-cont1/subdir1" ) ),
-                       "Directory exists in ($backendName)." );
-               $this->assertEquals( true,
-                       $this->backend->directoryExists( array( 'dir' => "$base/unittest-cont1/subdir2/subdir" ) ),
-                       "Directory exists in ($backendName)." );
-               $this->assertEquals( false,
-                       $this->backend->directoryExists( array( 'dir' => "$base/unittest-cont1/subdir2/test1.txt" ) ),
-                       "Directory does not exists in ($backendName)." );
-
                // Actual listing (no trailing slash)
                $list = array();
-               $iter = $this->backend->getTopDirectoryList( array( 'dir' => "$base/unittest-cont1" ) );
+               $iter = $this->backend->getTopDirectoryList( array( 'dir' => "$base/unittest-cont1/e" ) );
                foreach ( $iter as $file ) {
                        $list[] = $file;
                }
@@ -1610,7 +1646,7 @@ class FileBackendTest extends MediaWikiTestCase {
 
                // Actual listing (with trailing slash)
                $list = array();
-               $iter = $this->backend->getTopDirectoryList( array( 'dir' => "$base/unittest-cont1/" ) );
+               $iter = $this->backend->getTopDirectoryList( array( 'dir' => "$base/unittest-cont1/e/" ) );
                foreach ( $iter as $file ) {
                        $list[] = $file;
                }
@@ -1626,7 +1662,7 @@ class FileBackendTest extends MediaWikiTestCase {
 
                // Actual listing (no trailing slash)
                $list = array();
-               $iter = $this->backend->getTopDirectoryList( array( 'dir' => "$base/unittest-cont1/subdir2" ) );
+               $iter = $this->backend->getTopDirectoryList( array( 'dir' => "$base/unittest-cont1/e/subdir2" ) );
                foreach ( $iter as $file ) {
                        $list[] = $file;
                }
@@ -1636,7 +1672,7 @@ class FileBackendTest extends MediaWikiTestCase {
 
                // Actual listing (with trailing slash)
                $list = array();
-               $iter = $this->backend->getTopDirectoryList( array( 'dir' => "$base/unittest-cont1/subdir2/" ) );
+               $iter = $this->backend->getTopDirectoryList( array( 'dir' => "$base/unittest-cont1/e/subdir2/" ) );
                foreach ( $iter as $file ) {
                        $list[] = $file;
                }
@@ -1655,14 +1691,15 @@ class FileBackendTest extends MediaWikiTestCase {
 
                // Expected listing (recursive)
                $expected = array(
-                       "subdir1",
-                       "subdir2",
-                       "subdir3",
-                       "subdir4",
-                       "subdir2/subdir",
-                       "subdir3/subdir",
-                       "subdir4/subdir",
-                       "subdir4/subdir/sub",
+                       "e",
+                       "e/subdir1",
+                       "e/subdir2",
+                       "e/subdir3",
+                       "e/subdir4",
+                       "e/subdir2/subdir",
+                       "e/subdir3/subdir",
+                       "e/subdir4/subdir",
+                       "e/subdir4/subdir/sub",
                );
                sort( $expected );
 
@@ -1685,7 +1722,7 @@ class FileBackendTest extends MediaWikiTestCase {
 
                // Actual listing (recursive)
                $list = array();
-               $iter = $this->backend->getDirectoryList( array( 'dir' => "$base/unittest-cont1/subdir4" ) );
+               $iter = $this->backend->getDirectoryList( array( 'dir' => "$base/unittest-cont1/e/subdir4" ) );
                foreach ( $iter as $file ) {
                        $list[] = $file;
                }
@@ -1802,6 +1839,13 @@ class FileBackendTest extends MediaWikiTestCase {
                $this->backend->clean( array( 'dir' => "$base/$container", 'recursive' => 1 ) );
        }
 
+       function assertBackendPathsConsistent( array $paths ) {
+               if ( $this->backend instanceof FileBackendMultiWrite ) {
+                       $status = $this->backend->consistencyCheck( $paths );
+                       $this->assertGoodStatus( $status, "Files synced: " . implode( ',', $paths ) );
+               }
+       }
+
        function assertGoodStatus( $status, $msg ) {
                $this->assertEquals( print_r( array(), 1 ), print_r( $status->errors, 1 ), $msg );
        }