RevisionTest: Use utf-8 as name in iconv
[lhc/web/wiklou.git] / tests / phpunit / includes / RevisionTest.php
index 953c795..361984b 100644 (file)
@@ -34,6 +34,72 @@ class RevisionTest extends MediaWikiTestCase {
                $this->assertEquals( CONTENT_MODEL_JAVASCRIPT, $rev->getContentModel() );
        }
 
+       public function provideConstructFromArray_userSetAsExpected() {
+               yield 'no user defaults to wgUser' => [
+                       [
+                               'content' => new JavaScriptContent( 'hello world.' ),
+                       ],
+                       null,
+                       null,
+               ];
+               yield 'user text and id' => [
+                       [
+                               'content' => new JavaScriptContent( 'hello world.' ),
+                               'user_text' => 'SomeTextUserName',
+                               'user' => 99,
+
+                       ],
+                       99,
+                       'SomeTextUserName',
+               ];
+               // Note: the below XXX test cases are odd and probably result in unexpected behaviour if used
+               // in production code.
+               yield 'XXX: user text only' => [
+                       [
+                               'content' => new JavaScriptContent( 'hello world.' ),
+                               'user_text' => '111.111.111.111',
+                       ],
+                       null,
+                       '111.111.111.111',
+               ];
+               yield 'XXX: user id only' => [
+                       [
+                               'content' => new JavaScriptContent( 'hello world.' ),
+                               'user' => 9989,
+                       ],
+                       9989,
+                       null,
+               ];
+       }
+
+       /**
+        * @dataProvider provideConstructFromArray_userSetAsExpected
+        * @covers Revision::__construct
+        * @covers Revision::constructFromRowArray
+        *
+        * @param array $rowArray
+        * @param mixed $expectedUserId null to expect the current wgUser ID
+        * @param mixed $expectedUserName null to expect the current wgUser name
+        */
+       public function testConstructFromArray_userSetAsExpected(
+               array $rowArray,
+               $expectedUserId,
+               $expectedUserName
+       ) {
+               $testUser = $this->getTestUser()->getUser();
+               $this->setMwGlobals( 'wgUser', $testUser );
+               if ( $expectedUserId === null ) {
+                       $expectedUserId = $testUser->getId();
+               }
+               if ( $expectedUserName === null ) {
+                       $expectedUserName = $testUser->getName();
+               }
+
+               $rev = new Revision( $rowArray );
+               $this->assertEquals( $expectedUserId, $rev->getUser() );
+               $this->assertEquals( $expectedUserName, $rev->getUserText() );
+       }
+
        public function provideConstructFromArrayThrowsExceptions() {
                yield 'content and text_id both not empty' => [
                        [
@@ -372,6 +438,7 @@ class RevisionTest extends MediaWikiTestCase {
         * @covers Revision::fetchFromConds
         */
        public function testFetchFromConds( $flags, array $options ) {
+               $this->setMwGlobals( 'wgCommentTableSchemaMigrationStage', MIGRATION_OLD );
                $conditions = [ 'conditionsArray' ];
 
                $db = $this->getMock( IDatabase::class );
@@ -424,25 +491,25 @@ class RevisionTest extends MediaWikiTestCase {
                ];
                yield '(ISO-8859-1 encoding), string in string out' => [
                        'ISO-8859-1',
-                       iconv( 'utf8', 'ISO-8859-1', "1®Àþ1" ),
+                       iconv( 'utf-8', 'ISO-8859-1', "1®Àþ1" ),
                        [],
                        '1®Àþ1',
                ];
                yield '(ISO-8859-1 encoding), serialized object in with gzip flags returns string' => [
                        'ISO-8859-1',
-                       gzdeflate( iconv( 'utf8', 'ISO-8859-1', "4®Àþ4" ) ),
+                       gzdeflate( iconv( 'utf-8', 'ISO-8859-1', "4®Àþ4" ) ),
                        [ 'gzip' ],
                        '4®Àþ4',
                ];
                yield '(ISO-8859-1 encoding), serialized object in with object flags returns string' => [
                        'ISO-8859-1',
-                       serialize( new TitleValue( 0, iconv( 'utf8', 'ISO-8859-1', "3®Àþ3" ) ) ),
+                       serialize( new TitleValue( 0, iconv( 'utf-8', 'ISO-8859-1', "3®Àþ3" ) ) ),
                        [ 'object' ],
                        '3®Àþ3',
                ];
                yield '(ISO-8859-1 encoding), serialized object in with object & gzip flags returns string' => [
                        'ISO-8859-1',
-                       gzdeflate( serialize( new TitleValue( 0, iconv( 'utf8', 'ISO-8859-1', "2®Àþ2" ) ) ) ),
+                       gzdeflate( serialize( new TitleValue( 0, iconv( 'utf-8', 'ISO-8859-1', "2®Àþ2" ) ) ) ),
                        [ 'gzip', 'object' ],
                        '2®Àþ2',
                ];
@@ -466,4 +533,828 @@ class RevisionTest extends MediaWikiTestCase {
                );
        }
 
+       /**
+        * @covers Revision::getRevisionText
+        */
+       public function testGetRevisionText_returnsFalseWhenNoTextField() {
+               $this->assertFalse( Revision::getRevisionText( new stdClass() ) );
+       }
+
+       public function provideTestGetRevisionText_returnsDecompressedTextFieldWhenNotExternal() {
+               yield 'Just text' => [
+                       (object)[ 'old_text' => 'SomeText' ],
+                       'old_',
+                       'SomeText'
+               ];
+               // gzip string below generated with gzdeflate( 'AAAABBAAA' )
+               yield 'gzip text' => [
+                       (object)[
+                               'old_text' => "sttttr\002\022\000",
+                               'old_flags' => 'gzip'
+                       ],
+                       'old_',
+                       'AAAABBAAA'
+               ];
+               yield 'gzip text and different prefix' => [
+                       (object)[
+                               'jojo_text' => "sttttr\002\022\000",
+                               'jojo_flags' => 'gzip'
+                       ],
+                       'jojo_',
+                       'AAAABBAAA'
+               ];
+       }
+
+       /**
+        * @dataProvider provideTestGetRevisionText_returnsDecompressedTextFieldWhenNotExternal
+        * @covers Revision::getRevisionText
+        */
+       public function testGetRevisionText_returnsDecompressedTextFieldWhenNotExternal(
+               $row,
+               $prefix,
+               $expected
+       ) {
+               $this->assertSame( $expected, Revision::getRevisionText( $row, $prefix ) );
+       }
+
+       public function provideTestGetRevisionText_external_returnsFalseWhenNotEnoughUrlParts() {
+               yield 'Just some text' => [ 'someNonUrlText' ];
+               yield 'No second URL part' => [ 'someProtocol://' ];
+       }
+
+       /**
+        * @dataProvider provideTestGetRevisionText_external_returnsFalseWhenNotEnoughUrlParts
+        * @covers Revision::getRevisionText
+        */
+       public function testGetRevisionText_external_returnsFalseWhenNotEnoughUrlParts(
+               $text
+       ) {
+               $this->assertFalse(
+                       Revision::getRevisionText(
+                               (object)[
+                                       'old_text' => $text,
+                                       'old_flags' => 'external',
+                               ]
+                       )
+               );
+       }
+
+       /**
+        * @covers Revision::getRevisionText
+        */
+       public function testGetRevisionText_external_noOldId() {
+               $this->setService(
+                       'ExternalStoreFactory',
+                       new ExternalStoreFactory( [ 'ForTesting' ] )
+               );
+               $this->assertSame(
+                       'AAAABBAAA',
+                       Revision::getRevisionText(
+                               (object)[
+                                       'old_text' => 'ForTesting://cluster1/12345',
+                                       'old_flags' => 'external,gzip',
+                               ]
+                       )
+               );
+       }
+
+       /**
+        * @covers Revision::getRevisionText
+        */
+       public function testGetRevisionText_external_oldId() {
+               $cache = new WANObjectCache( [ 'cache' => new HashBagOStuff() ] );
+               $this->setService( 'MainWANObjectCache', $cache );
+               $this->setService(
+                       'ExternalStoreFactory',
+                       new ExternalStoreFactory( [ 'ForTesting' ] )
+               );
+
+               $cacheKey = $cache->makeKey( 'revisiontext', 'textid', '7777' );
+
+               $this->assertSame(
+                       'AAAABBAAA',
+                       Revision::getRevisionText(
+                               (object)[
+                                       'old_text' => 'ForTesting://cluster1/12345',
+                                       'old_flags' => 'external,gzip',
+                                       'old_id' => '7777',
+                               ]
+                       )
+               );
+               $this->assertSame( 'AAAABBAAA', $cache->get( $cacheKey ) );
+       }
+
+       /**
+        * @covers Revision::userJoinCond
+        */
+       public function testUserJoinCond() {
+               $this->hideDeprecated( 'Revision::userJoinCond' );
+               $this->assertEquals(
+                       [ 'LEFT JOIN', [ 'rev_user != 0', 'user_id = rev_user' ] ],
+                       Revision::userJoinCond()
+               );
+       }
+
+       /**
+        * @covers Revision::pageJoinCond
+        */
+       public function testPageJoinCond() {
+               $this->hideDeprecated( 'Revision::pageJoinCond' );
+               $this->assertEquals(
+                       [ 'INNER JOIN', [ 'page_id = rev_page' ] ],
+                       Revision::pageJoinCond()
+               );
+       }
+
+       public function provideSelectFields() {
+               yield [
+                       true,
+                       [
+                               'rev_id',
+                               'rev_page',
+                               'rev_text_id',
+                               'rev_timestamp',
+                               'rev_user_text',
+                               'rev_user',
+                               'rev_minor_edit',
+                               'rev_deleted',
+                               'rev_len',
+                               'rev_parent_id',
+                               'rev_sha1',
+                               'rev_comment_text' => 'rev_comment',
+                               'rev_comment_data' => 'NULL',
+                               'rev_comment_cid' => 'NULL',
+                               'rev_content_format',
+                               'rev_content_model',
+                       ]
+               ];
+               yield [
+                       false,
+                       [
+                               'rev_id',
+                               'rev_page',
+                               'rev_text_id',
+                               'rev_timestamp',
+                               'rev_user_text',
+                               'rev_user',
+                               'rev_minor_edit',
+                               'rev_deleted',
+                               'rev_len',
+                               'rev_parent_id',
+                               'rev_sha1',
+                               'rev_comment_text' => 'rev_comment',
+                               'rev_comment_data' => 'NULL',
+                               'rev_comment_cid' => 'NULL',
+                       ]
+               ];
+       }
+
+       /**
+        * @dataProvider provideSelectFields
+        * @covers Revision::selectFields
+        * @todo a true unit test would mock CommentStore
+        */
+       public function testSelectFields( $contentHandlerUseDB, $expected ) {
+               $this->hideDeprecated( 'Revision::selectFields' );
+               $this->setMwGlobals( 'wgContentHandlerUseDB', $contentHandlerUseDB );
+               $this->setMwGlobals( 'wgCommentTableSchemaMigrationStage', MIGRATION_OLD );
+               $this->assertEquals( $expected, Revision::selectFields() );
+       }
+
+       public function provideSelectArchiveFields() {
+               yield [
+                       true,
+                       [
+                               'ar_id',
+                               'ar_page_id',
+                               'ar_rev_id',
+                               'ar_text',
+                               'ar_text_id',
+                               'ar_timestamp',
+                               'ar_user_text',
+                               'ar_user',
+                               'ar_minor_edit',
+                               'ar_deleted',
+                               'ar_len',
+                               'ar_parent_id',
+                               'ar_sha1',
+                               'ar_comment_text' => 'ar_comment',
+                               'ar_comment_data' => 'NULL',
+                               'ar_comment_cid' => 'NULL',
+                               'ar_content_format',
+                               'ar_content_model',
+                       ]
+               ];
+               yield [
+                       false,
+                       [
+                               'ar_id',
+                               'ar_page_id',
+                               'ar_rev_id',
+                               'ar_text',
+                               'ar_text_id',
+                               'ar_timestamp',
+                               'ar_user_text',
+                               'ar_user',
+                               'ar_minor_edit',
+                               'ar_deleted',
+                               'ar_len',
+                               'ar_parent_id',
+                               'ar_sha1',
+                               'ar_comment_text' => 'ar_comment',
+                               'ar_comment_data' => 'NULL',
+                               'ar_comment_cid' => 'NULL',
+                       ]
+               ];
+       }
+
+       /**
+        * @dataProvider provideSelectArchiveFields
+        * @covers Revision::selectArchiveFields
+        * @todo a true unit test would mock CommentStore
+        */
+       public function testSelectArchiveFields( $contentHandlerUseDB, $expected ) {
+               $this->hideDeprecated( 'Revision::selectArchiveFields' );
+               $this->setMwGlobals( 'wgContentHandlerUseDB', $contentHandlerUseDB );
+               $this->setMwGlobals( 'wgCommentTableSchemaMigrationStage', MIGRATION_OLD );
+               $this->assertEquals( $expected, Revision::selectArchiveFields() );
+       }
+
+       /**
+        * @covers Revision::selectTextFields
+        */
+       public function testSelectTextFields() {
+               $this->hideDeprecated( 'Revision::selectTextFields' );
+               $this->assertEquals(
+                       [
+                               'old_text',
+                               'old_flags',
+                       ],
+                       Revision::selectTextFields()
+               );
+       }
+
+       /**
+        * @covers Revision::selectPageFields
+        */
+       public function testSelectPageFields() {
+               $this->hideDeprecated( 'Revision::selectPageFields' );
+               $this->assertEquals(
+                       [
+                               'page_namespace',
+                               'page_title',
+                               'page_id',
+                               'page_latest',
+                               'page_is_redirect',
+                               'page_len',
+                       ],
+                       Revision::selectPageFields()
+               );
+       }
+
+       /**
+        * @covers Revision::selectUserFields
+        */
+       public function testSelectUserFields() {
+               $this->hideDeprecated( 'Revision::selectUserFields' );
+               $this->assertEquals(
+                       [
+                               'user_name',
+                       ],
+                       Revision::selectUserFields()
+               );
+       }
+
+       public function provideGetArchiveQueryInfo() {
+               yield 'wgContentHandlerUseDB false, wgCommentTableSchemaMigrationStage OLD' => [
+                       [
+                               'wgContentHandlerUseDB' => false,
+                               'wgCommentTableSchemaMigrationStage' => MIGRATION_OLD,
+                       ],
+                       [
+                               'tables' => [ 'archive' ],
+                               'fields' => [
+                                       'ar_id',
+                                       'ar_page_id',
+                                       'ar_rev_id',
+                                       'ar_text',
+                                       'ar_text_id',
+                                       'ar_timestamp',
+                                       'ar_user_text',
+                                       'ar_user',
+                                       'ar_minor_edit',
+                                       'ar_deleted',
+                                       'ar_len',
+                                       'ar_parent_id',
+                                       'ar_sha1',
+                                       'ar_comment_text' => 'ar_comment',
+                                       'ar_comment_data' => 'NULL',
+                                       'ar_comment_cid' => 'NULL',
+                               ],
+                               'joins' => [],
+                       ]
+               ];
+               yield 'wgContentHandlerUseDB true, wgCommentTableSchemaMigrationStage OLD' => [
+                       [
+                               'wgContentHandlerUseDB' => true,
+                               'wgCommentTableSchemaMigrationStage' => MIGRATION_OLD,
+                       ],
+                       [
+                               'tables' => [ 'archive' ],
+                               'fields' => [
+                                       'ar_id',
+                                       'ar_page_id',
+                                       'ar_rev_id',
+                                       'ar_text',
+                                       'ar_text_id',
+                                       'ar_timestamp',
+                                       'ar_user_text',
+                                       'ar_user',
+                                       'ar_minor_edit',
+                                       'ar_deleted',
+                                       'ar_len',
+                                       'ar_parent_id',
+                                       'ar_sha1',
+                                       'ar_comment_text' => 'ar_comment',
+                                       'ar_comment_data' => 'NULL',
+                                       'ar_comment_cid' => 'NULL',
+                                       'ar_content_format',
+                                       'ar_content_model',
+                               ],
+                               'joins' => [],
+                       ]
+               ];
+               yield 'wgContentHandlerUseDB false, wgCommentTableSchemaMigrationStage WRITE_BOTH' => [
+                       [
+                               'wgContentHandlerUseDB' => false,
+                               'wgCommentTableSchemaMigrationStage' => MIGRATION_WRITE_BOTH,
+                       ],
+                       [
+                               'tables' => [
+                                       'archive',
+                                       'comment_ar_comment' => 'comment',
+                               ],
+                               'fields' => [
+                                       'ar_id',
+                                       'ar_page_id',
+                                       'ar_rev_id',
+                                       'ar_text',
+                                       'ar_text_id',
+                                       'ar_timestamp',
+                                       'ar_user_text',
+                                       'ar_user',
+                                       'ar_minor_edit',
+                                       'ar_deleted',
+                                       'ar_len',
+                                       'ar_parent_id',
+                                       'ar_sha1',
+                                       'ar_comment_text' => 'COALESCE( comment_ar_comment.comment_text, ar_comment )',
+                                       'ar_comment_data' => 'comment_ar_comment.comment_data',
+                                       'ar_comment_cid' => 'comment_ar_comment.comment_id',
+                               ],
+                               'joins' => [
+                                       'comment_ar_comment' => [
+                                               'LEFT JOIN',
+                                               'comment_ar_comment.comment_id = ar_comment_id',
+                                       ],
+                               ],
+                       ]
+               ];
+               yield 'wgContentHandlerUseDB false, wgCommentTableSchemaMigrationStage WRITE_NEW' => [
+                       [
+                               'wgContentHandlerUseDB' => false,
+                               'wgCommentTableSchemaMigrationStage' => MIGRATION_WRITE_NEW,
+                       ],
+                       [
+                               'tables' => [
+                                       'archive',
+                                       'comment_ar_comment' => 'comment',
+                               ],
+                               'fields' => [
+                                       'ar_id',
+                                       'ar_page_id',
+                                       'ar_rev_id',
+                                       'ar_text',
+                                       'ar_text_id',
+                                       'ar_timestamp',
+                                       'ar_user_text',
+                                       'ar_user',
+                                       'ar_minor_edit',
+                                       'ar_deleted',
+                                       'ar_len',
+                                       'ar_parent_id',
+                                       'ar_sha1',
+                                       'ar_comment_text' => 'COALESCE( comment_ar_comment.comment_text, ar_comment )',
+                                       'ar_comment_data' => 'comment_ar_comment.comment_data',
+                                       'ar_comment_cid' => 'comment_ar_comment.comment_id',
+                               ],
+                               'joins' => [
+                                       'comment_ar_comment' => [
+                                               'LEFT JOIN',
+                                               'comment_ar_comment.comment_id = ar_comment_id',
+                                       ],
+                               ],
+                       ]
+               ];
+               yield 'wgContentHandlerUseDB false, wgCommentTableSchemaMigrationStage NEW' => [
+                       [
+                               'wgContentHandlerUseDB' => false,
+                               'wgCommentTableSchemaMigrationStage' => MIGRATION_NEW,
+                       ],
+                       [
+                               'tables' => [
+                                       'archive',
+                                       'comment_ar_comment' => 'comment',
+                               ],
+                               'fields' => [
+                                       'ar_id',
+                                       'ar_page_id',
+                                       'ar_rev_id',
+                                       'ar_text',
+                                       'ar_text_id',
+                                       'ar_timestamp',
+                                       'ar_user_text',
+                                       'ar_user',
+                                       'ar_minor_edit',
+                                       'ar_deleted',
+                                       'ar_len',
+                                       'ar_parent_id',
+                                       'ar_sha1',
+                                       'ar_comment_text' => 'comment_ar_comment.comment_text',
+                                       'ar_comment_data' => 'comment_ar_comment.comment_data',
+                                       'ar_comment_cid' => 'comment_ar_comment.comment_id',
+                               ],
+                               'joins' => [
+                                       'comment_ar_comment' => [
+                                               'JOIN',
+                                               'comment_ar_comment.comment_id = ar_comment_id',
+                                       ],
+                               ],
+                       ]
+               ];
+       }
+
+       /**
+        * @covers Revision::getArchiveQueryInfo
+        * @dataProvider provideGetArchiveQueryInfo
+        */
+       public function testGetArchiveQueryInfo( $globals, $expected ) {
+               $this->setMwGlobals( $globals );
+               $this->assertEquals(
+                       $expected,
+                       Revision::getArchiveQueryInfo()
+               );
+       }
+
+       public function provideGetQueryInfo() {
+               yield 'wgContentHandlerUseDB false, wgCommentTableSchemaMigrationStage OLD, opts none' => [
+                       [
+                               'wgContentHandlerUseDB' => false,
+                               'wgCommentTableSchemaMigrationStage' => MIGRATION_OLD,
+                       ],
+                       [],
+                       [
+                               'tables' => [ 'revision' ],
+                               'fields' => [
+                                       'rev_id',
+                                       'rev_page',
+                                       'rev_text_id',
+                                       'rev_timestamp',
+                                       'rev_user_text',
+                                       'rev_user',
+                                       'rev_minor_edit',
+                                       'rev_deleted',
+                                       'rev_len',
+                                       'rev_parent_id',
+                                       'rev_sha1',
+                                       'rev_comment_text' => 'rev_comment',
+                                       'rev_comment_data' => 'NULL',
+                                       'rev_comment_cid' => 'NULL',
+                               ],
+                               'joins' => [],
+                       ],
+               ];
+               yield 'wgContentHandlerUseDB false, wgCommentTableSchemaMigrationStage OLD, opts page' => [
+                       [
+                               'wgContentHandlerUseDB' => false,
+                               'wgCommentTableSchemaMigrationStage' => MIGRATION_OLD,
+                       ],
+                       [ 'page' ],
+                       [
+                               'tables' => [ 'revision', 'page' ],
+                               'fields' => [
+                                       'rev_id',
+                                       'rev_page',
+                                       'rev_text_id',
+                                       'rev_timestamp',
+                                       'rev_user_text',
+                                       'rev_user',
+                                       'rev_minor_edit',
+                                       'rev_deleted',
+                                       'rev_len',
+                                       'rev_parent_id',
+                                       'rev_sha1',
+                                       'rev_comment_text' => 'rev_comment',
+                                       'rev_comment_data' => 'NULL',
+                                       'rev_comment_cid' => 'NULL',
+                                       'page_namespace',
+                                       'page_title',
+                                       'page_id',
+                                       'page_latest',
+                                       'page_is_redirect',
+                                       'page_len',
+                               ],
+                               'joins' => [
+                                       'page' => [
+                                               'INNER JOIN',
+                                               [ 'page_id = rev_page' ],
+                                       ],
+                               ],
+                       ],
+               ];
+               yield 'wgContentHandlerUseDB false, wgCommentTableSchemaMigrationStage OLD, opts user' => [
+                       [
+                               'wgContentHandlerUseDB' => false,
+                               'wgCommentTableSchemaMigrationStage' => MIGRATION_OLD,
+                       ],
+                       [ 'user' ],
+                       [
+                               'tables' => [ 'revision', 'user' ],
+                               'fields' => [
+                                       'rev_id',
+                                       'rev_page',
+                                       'rev_text_id',
+                                       'rev_timestamp',
+                                       'rev_user_text',
+                                       'rev_user',
+                                       'rev_minor_edit',
+                                       'rev_deleted',
+                                       'rev_len',
+                                       'rev_parent_id',
+                                       'rev_sha1',
+                                       'rev_comment_text' => 'rev_comment',
+                                       'rev_comment_data' => 'NULL',
+                                       'rev_comment_cid' => 'NULL',
+                                       'user_name',
+                               ],
+                               'joins' => [
+                                       'user' => [
+                                               'LEFT JOIN',
+                                               [
+                                                       'rev_user != 0',
+                                                       'user_id = rev_user',
+                                               ],
+                                       ],
+                               ],
+                       ],
+               ];
+               yield 'wgContentHandlerUseDB false, wgCommentTableSchemaMigrationStage OLD, opts text' => [
+                       [
+                               'wgContentHandlerUseDB' => false,
+                               'wgCommentTableSchemaMigrationStage' => MIGRATION_OLD,
+                       ],
+                       [ 'text' ],
+                       [
+                               'tables' => [ 'revision', 'text' ],
+                               'fields' => [
+                                       'rev_id',
+                                       'rev_page',
+                                       'rev_text_id',
+                                       'rev_timestamp',
+                                       'rev_user_text',
+                                       'rev_user',
+                                       'rev_minor_edit',
+                                       'rev_deleted',
+                                       'rev_len',
+                                       'rev_parent_id',
+                                       'rev_sha1',
+                                       'rev_comment_text' => 'rev_comment',
+                                       'rev_comment_data' => 'NULL',
+                                       'rev_comment_cid' => 'NULL',
+                                       'old_text',
+                                       'old_flags',
+                               ],
+                               'joins' => [
+                                       'text' => [
+                                               'INNER JOIN',
+                                               [ 'rev_text_id=old_id' ],
+                                       ],
+                               ],
+                       ],
+               ];
+               yield 'wgContentHandlerUseDB false, wgCommentTableSchemaMigrationStage OLD, opts 3' => [
+                       [
+                               'wgContentHandlerUseDB' => false,
+                               'wgCommentTableSchemaMigrationStage' => MIGRATION_OLD,
+                       ],
+                       [ 'text', 'page', 'user' ],
+                       [
+                               'tables' => [ 'revision', 'page', 'user', 'text' ],
+                               'fields' => [
+                                       'rev_id',
+                                       'rev_page',
+                                       'rev_text_id',
+                                       'rev_timestamp',
+                                       'rev_user_text',
+                                       'rev_user',
+                                       'rev_minor_edit',
+                                       'rev_deleted',
+                                       'rev_len',
+                                       'rev_parent_id',
+                                       'rev_sha1',
+                                       'rev_comment_text' => 'rev_comment',
+                                       'rev_comment_data' => 'NULL',
+                                       'rev_comment_cid' => 'NULL',
+                                       'page_namespace',
+                                       'page_title',
+                                       'page_id',
+                                       'page_latest',
+                                       'page_is_redirect',
+                                       'page_len',
+                                       'user_name',
+                                       'old_text',
+                                       'old_flags',
+                               ],
+                               'joins' => [
+                                       'page' => [
+                                               'INNER JOIN',
+                                               [ 'page_id = rev_page' ],
+                                       ],
+                                       'user' => [
+                                               'LEFT JOIN',
+                                               [
+                                                       'rev_user != 0',
+                                                       'user_id = rev_user',
+                                               ],
+                                       ],
+                                       'text' => [
+                                               'INNER JOIN',
+                                               [ 'rev_text_id=old_id' ],
+                                       ],
+                               ],
+                       ],
+               ];
+               yield 'wgContentHandlerUseDB true, wgCommentTableSchemaMigrationStage OLD, opts none' => [
+                       [
+                               'wgContentHandlerUseDB' => true,
+                               'wgCommentTableSchemaMigrationStage' => MIGRATION_OLD,
+                       ],
+                       [],
+                       [
+                               'tables' => [ 'revision' ],
+                               'fields' => [
+                                       'rev_id',
+                                       'rev_page',
+                                       'rev_text_id',
+                                       'rev_timestamp',
+                                       'rev_user_text',
+                                       'rev_user',
+                                       'rev_minor_edit',
+                                       'rev_deleted',
+                                       'rev_len',
+                                       'rev_parent_id',
+                                       'rev_sha1',
+                                       'rev_comment_text' => 'rev_comment',
+                                       'rev_comment_data' => 'NULL',
+                                       'rev_comment_cid' => 'NULL',
+                                       'rev_content_format',
+                                       'rev_content_model',
+                               ],
+                               'joins' => [],
+                       ],
+               ];
+               yield 'wgContentHandlerUseDB false, wgCommentTableSchemaMigrationStage WRITE_BOTH, opts none' => [
+                       [
+                               'wgContentHandlerUseDB' => false,
+                               'wgCommentTableSchemaMigrationStage' => MIGRATION_WRITE_BOTH,
+                       ],
+                       [],
+                       [
+                               'tables' => [
+                                       'revision',
+                                       'temp_rev_comment' => 'revision_comment_temp',
+                                       'comment_rev_comment' => 'comment',
+                               ],
+                               'fields' => [
+                                       'rev_id',
+                                       'rev_page',
+                                       'rev_text_id',
+                                       'rev_timestamp',
+                                       'rev_user_text',
+                                       'rev_user',
+                                       'rev_minor_edit',
+                                       'rev_deleted',
+                                       'rev_len',
+                                       'rev_parent_id',
+                                       'rev_sha1',
+                                       'rev_comment_text' => 'COALESCE( comment_rev_comment.comment_text, rev_comment )',
+                                       'rev_comment_data' => 'comment_rev_comment.comment_data',
+                                       'rev_comment_cid' => 'comment_rev_comment.comment_id',
+                               ],
+                               'joins' => [
+                                       'temp_rev_comment' => [
+                                               'LEFT JOIN',
+                                               'temp_rev_comment.revcomment_rev = rev_id',
+                                       ],
+                                       'comment_rev_comment' => [
+                                               'LEFT JOIN',
+                                               'comment_rev_comment.comment_id = temp_rev_comment.revcomment_comment_id',
+                                       ],
+                               ],
+                       ],
+               ];
+               yield 'wgContentHandlerUseDB false, wgCommentTableSchemaMigrationStage WRITE_NEW, opts none' => [
+                       [
+                               'wgContentHandlerUseDB' => false,
+                               'wgCommentTableSchemaMigrationStage' => MIGRATION_WRITE_NEW,
+                       ],
+                       [],
+                       [
+                               'tables' => [
+                                       'revision',
+                                       'temp_rev_comment' => 'revision_comment_temp',
+                                       'comment_rev_comment' => 'comment',
+                               ],
+                               'fields' => [
+                                       'rev_id',
+                                       'rev_page',
+                                       'rev_text_id',
+                                       'rev_timestamp',
+                                       'rev_user_text',
+                                       'rev_user',
+                                       'rev_minor_edit',
+                                       'rev_deleted',
+                                       'rev_len',
+                                       'rev_parent_id',
+                                       'rev_sha1',
+                                       'rev_comment_text' => 'COALESCE( comment_rev_comment.comment_text, rev_comment )',
+                                       'rev_comment_data' => 'comment_rev_comment.comment_data',
+                                       'rev_comment_cid' => 'comment_rev_comment.comment_id',
+                               ],
+                               'joins' => [
+                                       'temp_rev_comment' => [
+                                               'LEFT JOIN',
+                                               'temp_rev_comment.revcomment_rev = rev_id',
+                                       ],
+                                       'comment_rev_comment' => [
+                                               'LEFT JOIN',
+                                               'comment_rev_comment.comment_id = temp_rev_comment.revcomment_comment_id',
+                                       ],
+                               ],
+                       ],
+               ];
+               yield 'wgContentHandlerUseDB false, wgCommentTableSchemaMigrationStage NEW, opts none' => [
+                       [
+                               'wgContentHandlerUseDB' => false,
+                               'wgCommentTableSchemaMigrationStage' => MIGRATION_NEW,
+                       ],
+                       [],
+                       [
+                               'tables' => [
+                                       'revision',
+                                       'temp_rev_comment' => 'revision_comment_temp',
+                                       'comment_rev_comment' => 'comment',
+                               ],
+                               'fields' => [
+                                       'rev_id',
+                                       'rev_page',
+                                       'rev_text_id',
+                                       'rev_timestamp',
+                                       'rev_user_text',
+                                       'rev_user',
+                                       'rev_minor_edit',
+                                       'rev_deleted',
+                                       'rev_len',
+                                       'rev_parent_id',
+                                       'rev_sha1',
+                                       'rev_comment_text' => 'comment_rev_comment.comment_text',
+                                       'rev_comment_data' => 'comment_rev_comment.comment_data',
+                                       'rev_comment_cid' => 'comment_rev_comment.comment_id',
+                               ],
+                               'joins' => [
+                                       'temp_rev_comment' => [
+                                               'JOIN',
+                                               'temp_rev_comment.revcomment_rev = rev_id',
+                                       ],
+                                       'comment_rev_comment' => [
+                                               'JOIN',
+                                               'comment_rev_comment.comment_id = temp_rev_comment.revcomment_comment_id',
+                                       ],
+                               ],
+                       ],
+               ];
+       }
+
+       /**
+        * @covers Revision::getQueryInfo
+        * @dataProvider provideGetQueryInfo
+        */
+       public function testGetQueryInfo( $globals, $options, $expected ) {
+               $this->setMwGlobals( $globals );
+               $this->assertEquals(
+                       $expected,
+                       Revision::getQueryInfo( $options )
+               );
+       }
+
 }