Merge "Don't silently fail if API result fails to encode"
[lhc/web/wiklou.git] / tests / phpunit / maintenance / MaintenanceTest.php
index e21e726..141561f 100644 (file)
 <?php
 
-// It would be great if we were able to use PHPUnit's getMockForAbstractClass
-// instead of the MaintenanceFixup hack below. However, we cannot do
-// without changing the visibility and without working around hacks in
-// Maintenance.php
-// For the same reason, we cannot just use FakeMaintenance.
-use MediaWiki\MediaWikiServices;
-
-/**
- * makes parts of the API of Maintenance that is hidden by protected visibily
- * visible for testing, and makes up for a stream closing hack in Maintenance.php.
- *
- * This class is solely used for being able to test Maintenance right now
- * without having to apply major refactorings to fix some design issues in
- * Maintenance.php. Before adding more functions here, please consider whether
- * this approach is correct, or a refactoring Maintenance to separate concers
- * is more appropriate.
- *
- * Upon refactoring, keep in mind that besides the maintenance scrits themselves
- * and tests right here, also at least Extension:Maintenance make use of
- * Maintenance.
- *
- * Due to a hack in Maintenance.php using register_shutdown_function, be sure to
- * finally call simulateShutdown on MaintenanceFixup instance before a test
- * ends.
- */
-class MaintenanceFixup extends Maintenance {
-
-       // --- Making up for the register_shutdown_function hack in Maintenance.php
-
-       /**
-        * The test case that generated this instance.
-        *
-        * This member is motivated by allowing the destructor to check whether or not
-        * the test failed, in order to avoid unnecessary nags about omitted shutdown
-        * simulation.
-        * But as it is already available, we also usi it to flagging tests as failed
-        *
-        * @var MediaWikiTestCase
-        */
-       private $testCase;
-
-       /**
-        * shutdownSimulated === true if simulateShutdown has done it's work
-        *
-        * @var bool
-        */
-       private $shutdownSimulated = false;
-
-       /**
-        * Simulates what Maintenance wants to happen at script's end.
-        */
-       public function simulateShutdown() {
-               if ( $this->shutdownSimulated ) {
-                       $this->testCase->fail( __METHOD__ . " called more than once" );
-               }
-
-               // The cleanup action.
-               $this->outputChanneled( false );
-
-               // Bookkeeping that we simulated the clean up.
-               $this->shutdownSimulated = true;
-       }
-
-       // Note that the "public" here does not change visibility
-       public function outputChanneled( $msg, $channel = null ) {
-               if ( $this->shutdownSimulated ) {
-                       if ( $msg !== false ) {
-                               $this->testCase->fail( "Already past simulated shutdown, but msg is "
-                                       . "not false. Did the hack in Maintenance.php change? Please "
-                                       . "adapt the test case or Maintenance.php" );
-                       }
+namespace MediaWiki\Tests\Maintenance;
 
-                       // The current call is the one registered via register_shutdown_function.
-                       // We can safely ignore it, as we simulated this one via simulateShutdown
-                       // before (if we did not, the destructor of this instance will warn about
-                       // it)
-                       return;
-               }
-
-               call_user_func_array( [ "parent", __FUNCTION__ ], func_get_args() );
-       }
-
-       /**
-        * Safety net around register_shutdown_function of Maintenance.php
-        */
-       public function __destruct() {
-               if ( !$this->shutdownSimulated ) {
-                       // Someone generated a MaintenanceFixup instance without calling
-                       // simulateShutdown. We'd have to raise a PHPUnit exception to correctly
-                       // flag this illegal usage. However, we are already in a destruktor, which
-                       // would trigger undefined behavior. Hence, we can only report to the
-                       // error output :( Hopefully people read the PHPUnit output.
-                       $name = $this->testCase->getName();
-                       fwrite( STDERR, "ERROR! Instance of " . __CLASS__ . " for test $name "
-                               . "destructed without calling simulateShutdown method. Call "
-                               . "simulateShutdown on the instance before it gets destructed." );
-               }
-
-               // The following guard is required, as PHP does not offer default destructors :(
-               if ( is_callable( "parent::__destruct" ) ) {
-                       parent::__destruct();
-               }
-       }
-
-       public function __construct( MediaWikiTestCase $testCase ) {
-               parent::__construct();
-               $this->testCase = $testCase;
-       }
-
-       // --- Making protected functions visible for test
-
-       public function output( $out, $channel = null ) {
-               // Just to make PHP not nag about signature mismatches, we copied
-               // Maintenance::output signature. However, we do not use (or rely on)
-               // those variables. Instead we pass to Maintenance::output whatever we
-               // receive at runtime.
-               return call_user_func_array( [ "parent", __FUNCTION__ ], func_get_args() );
-       }
-
-       public function addOption( $name, $description, $required = false,
-               $withArg = false, $shortName = false, $multiOccurance = false
-       ) {
-               return call_user_func_array( [ "parent", __FUNCTION__ ], func_get_args() );
-       }
-
-       public function getOption( $name, $default = null ) {
-               return call_user_func_array( [ "parent", __FUNCTION__ ], func_get_args() );
-       }
-
-       // --- Requirements for getting instance of abstract class
-
-       public function execute() {
-               $this->testCase->fail( __METHOD__ . " called unexpectedly" );
-       }
-}
+use Maintenance;
+use MediaWiki\MediaWikiServices;
+use Wikimedia\TestingAccessWrapper;
 
 /**
  * @covers Maintenance
  */
-class MaintenanceTest extends MediaWikiTestCase {
+class MaintenanceTest extends MaintenanceBaseTestCase {
 
        /**
-        * The main Maintenance instance that is used for testing.
-        *
-        * @var MaintenanceFixup
+        * @see MaintenanceBaseTestCase::getMaintenanceClass
         */
-       private $m;
-
-       protected function setUp() {
-               parent::setUp();
-               $this->m = new MaintenanceFixup( $this );
-       }
-
-       protected function tearDown() {
-               if ( $this->m ) {
-                       $this->m->simulateShutdown();
-                       $this->m = null;
-               }
-               parent::tearDown();
+       protected function getMaintenanceClass() {
+               return Maintenance::class;
        }
 
        /**
-        * asserts the output before and after simulating shutdown
+        * @see MaintenanceBaseTestCase::createMaintenance
         *
-        * This function simulates shutdown of self::m.
-        *
-        * @param string $preShutdownOutput Expected output before simulating shutdown
-        * @param bool $expectNLAppending Whether or not shutdown simulation is expected
-        *   to add a newline to the output. If false, $preShutdownOutput is the
-        *   expected output after shutdown simulation. Otherwise,
-        *   $preShutdownOutput with an appended newline is the expected output
-        *   after shutdown simulation.
+        * Note to extension authors looking for a model to follow: This function
+        * is normally not needed in a maintenance test, it's only overridden here
+        * because Maintenance is abstract.
         */
-       private function assertOutputPrePostShutdown( $preShutdownOutput, $expectNLAppending ) {
-               $this->assertEquals( $preShutdownOutput, $this->getActualOutput(),
-                       "Output before shutdown simulation" );
-
-               $this->m->simulateShutdown();
-               $this->m = null;
+       protected function createMaintenance() {
+               $className = $this->getMaintenanceClass();
+               $obj = $this->getMockForAbstractClass( $className );
 
-               $postShutdownOutput = $preShutdownOutput . ( $expectNLAppending ? "\n" : "" );
-               $this->expectOutputString( $postShutdownOutput );
+               return TestingAccessWrapper::newFromObject( $obj );
        }
 
        // Although the following tests do not seem to be too consistent (compare for
@@ -189,632 +37,445 @@ class MaintenanceTest extends MediaWikiTestCase {
        // test.*Intermittent.* tests), the objective of these tests is not to describe
        // consistent behavior, but rather currently existing behavior.
 
-       function testOutputEmpty() {
-               $this->m->output( "" );
-               $this->assertOutputPrePostShutdown( "", false );
-       }
-
-       function testOutputString() {
-               $this->m->output( "foo" );
-               $this->assertOutputPrePostShutdown( "foo", false );
-       }
-
-       function testOutputStringString() {
-               $this->m->output( "foo" );
-               $this->m->output( "bar" );
-               $this->assertOutputPrePostShutdown( "foobar", false );
-       }
-
-       function testOutputStringNL() {
-               $this->m->output( "foo\n" );
-               $this->assertOutputPrePostShutdown( "foo\n", false );
-       }
-
-       function testOutputStringNLNL() {
-               $this->m->output( "foo\n\n" );
-               $this->assertOutputPrePostShutdown( "foo\n\n", false );
-       }
-
-       function testOutputStringNLString() {
-               $this->m->output( "foo\nbar" );
-               $this->assertOutputPrePostShutdown( "foo\nbar", false );
-       }
-
-       function testOutputStringNLStringNL() {
-               $this->m->output( "foo\nbar\n" );
-               $this->assertOutputPrePostShutdown( "foo\nbar\n", false );
-       }
-
-       function testOutputStringNLStringNLLinewise() {
-               $this->m->output( "foo\n" );
-               $this->m->output( "bar\n" );
-               $this->assertOutputPrePostShutdown( "foo\nbar\n", false );
-       }
-
-       function testOutputStringNLStringNLArbitrary() {
-               $this->m->output( "" );
-               $this->m->output( "foo" );
-               $this->m->output( "" );
-               $this->m->output( "\n" );
-               $this->m->output( "ba" );
-               $this->m->output( "" );
-               $this->m->output( "r\n" );
-               $this->assertOutputPrePostShutdown( "foo\nbar\n", false );
-       }
-
-       function testOutputStringNLStringNLArbitraryAgain() {
-               $this->m->output( "" );
-               $this->m->output( "foo" );
-               $this->m->output( "" );
-               $this->m->output( "\nb" );
-               $this->m->output( "a" );
-               $this->m->output( "" );
-               $this->m->output( "r\n" );
-               $this->assertOutputPrePostShutdown( "foo\nbar\n", false );
-       }
-
-       function testOutputWNullChannelEmpty() {
-               $this->m->output( "", null );
-               $this->assertOutputPrePostShutdown( "", false );
-       }
-
-       function testOutputWNullChannelString() {
-               $this->m->output( "foo", null );
-               $this->assertOutputPrePostShutdown( "foo", false );
-       }
-
-       function testOutputWNullChannelStringString() {
-               $this->m->output( "foo", null );
-               $this->m->output( "bar", null );
-               $this->assertOutputPrePostShutdown( "foobar", false );
-       }
-
-       function testOutputWNullChannelStringNL() {
-               $this->m->output( "foo\n", null );
-               $this->assertOutputPrePostShutdown( "foo\n", false );
-       }
-
-       function testOutputWNullChannelStringNLNL() {
-               $this->m->output( "foo\n\n", null );
-               $this->assertOutputPrePostShutdown( "foo\n\n", false );
-       }
-
-       function testOutputWNullChannelStringNLString() {
-               $this->m->output( "foo\nbar", null );
-               $this->assertOutputPrePostShutdown( "foo\nbar", false );
-       }
-
-       function testOutputWNullChannelStringNLStringNL() {
-               $this->m->output( "foo\nbar\n", null );
-               $this->assertOutputPrePostShutdown( "foo\nbar\n", false );
-       }
-
-       function testOutputWNullChannelStringNLStringNLLinewise() {
-               $this->m->output( "foo\n", null );
-               $this->m->output( "bar\n", null );
-               $this->assertOutputPrePostShutdown( "foo\nbar\n", false );
-       }
-
-       function testOutputWNullChannelStringNLStringNLArbitrary() {
-               $this->m->output( "", null );
-               $this->m->output( "foo", null );
-               $this->m->output( "", null );
-               $this->m->output( "\n", null );
-               $this->m->output( "ba", null );
-               $this->m->output( "", null );
-               $this->m->output( "r\n", null );
-               $this->assertOutputPrePostShutdown( "foo\nbar\n", false );
-       }
-
-       function testOutputWNullChannelStringNLStringNLArbitraryAgain() {
-               $this->m->output( "", null );
-               $this->m->output( "foo", null );
-               $this->m->output( "", null );
-               $this->m->output( "\nb", null );
-               $this->m->output( "a", null );
-               $this->m->output( "", null );
-               $this->m->output( "r\n", null );
-               $this->assertOutputPrePostShutdown( "foo\nbar\n", false );
-       }
-
-       function testOutputWChannelString() {
-               $this->m->output( "foo", "bazChannel" );
-               $this->assertOutputPrePostShutdown( "foo", true );
-       }
-
-       function testOutputWChannelStringNL() {
-               $this->m->output( "foo\n", "bazChannel" );
-               $this->assertOutputPrePostShutdown( "foo", true );
-       }
-
-       function testOutputWChannelStringNLNL() {
-               // If this test fails, note that output takes strings with double line
-               // endings (although output's implementation in this situation calls
-               // outputChanneled with a string ending in a nl ... which is not allowed
-               // according to the documentation of outputChanneled)
-               $this->m->output( "foo\n\n", "bazChannel" );
-               $this->assertOutputPrePostShutdown( "foo\n", true );
-       }
-
-       function testOutputWChannelStringNLString() {
-               $this->m->output( "foo\nbar", "bazChannel" );
-               $this->assertOutputPrePostShutdown( "foo\nbar", true );
-       }
-
-       function testOutputWChannelStringNLStringNL() {
-               $this->m->output( "foo\nbar\n", "bazChannel" );
-               $this->assertOutputPrePostShutdown( "foo\nbar", true );
-       }
-
-       function testOutputWChannelStringNLStringNLLinewise() {
-               $this->m->output( "foo\n", "bazChannel" );
-               $this->m->output( "bar\n", "bazChannel" );
-               $this->assertOutputPrePostShutdown( "foobar", true );
-       }
-
-       function testOutputWChannelStringNLStringNLArbitrary() {
-               $this->m->output( "", "bazChannel" );
-               $this->m->output( "foo", "bazChannel" );
-               $this->m->output( "", "bazChannel" );
-               $this->m->output( "\n", "bazChannel" );
-               $this->m->output( "ba", "bazChannel" );
-               $this->m->output( "", "bazChannel" );
-               $this->m->output( "r\n", "bazChannel" );
-               $this->assertOutputPrePostShutdown( "foobar", true );
-       }
-
-       function testOutputWChannelStringNLStringNLArbitraryAgain() {
-               $this->m->output( "", "bazChannel" );
-               $this->m->output( "foo", "bazChannel" );
-               $this->m->output( "", "bazChannel" );
-               $this->m->output( "\nb", "bazChannel" );
-               $this->m->output( "a", "bazChannel" );
-               $this->m->output( "", "bazChannel" );
-               $this->m->output( "r\n", "bazChannel" );
-               $this->assertOutputPrePostShutdown( "foo\nbar", true );
-       }
-
-       function testOutputWMultipleChannelsChannelChange() {
-               $this->m->output( "foo", "bazChannel" );
-               $this->m->output( "bar", "bazChannel" );
-               $this->m->output( "qux", "quuxChannel" );
-               $this->m->output( "corge", "bazChannel" );
-               $this->assertOutputPrePostShutdown( "foobar\nqux\ncorge", true );
-       }
-
-       function testOutputWMultipleChannelsChannelChangeNL() {
-               $this->m->output( "foo", "bazChannel" );
-               $this->m->output( "bar\n", "bazChannel" );
-               $this->m->output( "qux\n", "quuxChannel" );
-               $this->m->output( "corge", "bazChannel" );
-               $this->assertOutputPrePostShutdown( "foobar\nqux\ncorge", true );
-       }
-
-       function testOutputWAndWOChannelStringStartWO() {
-               $this->m->output( "foo" );
-               $this->m->output( "bar", "bazChannel" );
-               $this->m->output( "qux" );
-               $this->m->output( "quux", "bazChannel" );
-               $this->assertOutputPrePostShutdown( "foobar\nquxquux", true );
-       }
-
-       function testOutputWAndWOChannelStringStartW() {
-               $this->m->output( "foo", "bazChannel" );
-               $this->m->output( "bar" );
-               $this->m->output( "qux", "bazChannel" );
-               $this->m->output( "quux" );
-               $this->assertOutputPrePostShutdown( "foo\nbarqux\nquux", false );
-       }
-
-       function testOutputWChannelTypeSwitch() {
-               $this->m->output( "foo", 1 );
-               $this->m->output( "bar", 1.0 );
-               $this->assertOutputPrePostShutdown( "foo\nbar", true );
-       }
-
-       function testOutputIntermittentEmpty() {
-               $this->m->output( "foo" );
-               $this->m->output( "" );
-               $this->m->output( "bar" );
-               $this->assertOutputPrePostShutdown( "foobar", false );
-       }
-
-       function testOutputIntermittentFalse() {
-               $this->m->output( "foo" );
-               $this->m->output( false );
-               $this->m->output( "bar" );
-               $this->assertOutputPrePostShutdown( "foobar", false );
-       }
-
-       function testOutputIntermittentFalseAfterOtherChannel() {
-               $this->m->output( "qux", "quuxChannel" );
-               $this->m->output( "foo" );
-               $this->m->output( false );
-               $this->m->output( "bar" );
-               $this->assertOutputPrePostShutdown( "qux\nfoobar", false );
-       }
-
-       function testOutputWNullChannelIntermittentEmpty() {
-               $this->m->output( "foo", null );
-               $this->m->output( "", null );
-               $this->m->output( "bar", null );
-               $this->assertOutputPrePostShutdown( "foobar", false );
-       }
-
-       function testOutputWNullChannelIntermittentFalse() {
-               $this->m->output( "foo", null );
-               $this->m->output( false, null );
-               $this->m->output( "bar", null );
-               $this->assertOutputPrePostShutdown( "foobar", false );
-       }
-
-       function testOutputWChannelIntermittentEmpty() {
-               $this->m->output( "foo", "bazChannel" );
-               $this->m->output( "", "bazChannel" );
-               $this->m->output( "bar", "bazChannel" );
-               $this->assertOutputPrePostShutdown( "foobar", true );
-       }
-
-       function testOutputWChannelIntermittentFalse() {
-               $this->m->output( "foo", "bazChannel" );
-               $this->m->output( false, "bazChannel" );
-               $this->m->output( "bar", "bazChannel" );
-               $this->assertOutputPrePostShutdown( "foobar", true );
-       }
-
-       // Note that (per documentation) outputChanneled does take strings that end
-       // in \n, hence we do not test such strings.
-
-       function testOutputChanneledEmpty() {
-               $this->m->outputChanneled( "" );
-               $this->assertOutputPrePostShutdown( "\n", false );
-       }
-
-       function testOutputChanneledString() {
-               $this->m->outputChanneled( "foo" );
-               $this->assertOutputPrePostShutdown( "foo\n", false );
-       }
-
-       function testOutputChanneledStringString() {
-               $this->m->outputChanneled( "foo" );
-               $this->m->outputChanneled( "bar" );
-               $this->assertOutputPrePostShutdown( "foo\nbar\n", false );
-       }
-
-       function testOutputChanneledStringNLString() {
-               $this->m->outputChanneled( "foo\nbar" );
-               $this->assertOutputPrePostShutdown( "foo\nbar\n", false );
-       }
-
-       function testOutputChanneledStringNLStringNLArbitraryAgain() {
-               $this->m->outputChanneled( "" );
-               $this->m->outputChanneled( "foo" );
-               $this->m->outputChanneled( "" );
-               $this->m->outputChanneled( "\nb" );
-               $this->m->outputChanneled( "a" );
-               $this->m->outputChanneled( "" );
-               $this->m->outputChanneled( "r" );
-               $this->assertOutputPrePostShutdown( "\nfoo\n\n\nb\na\n\nr\n", false );
-       }
-
-       function testOutputChanneledWNullChannelEmpty() {
-               $this->m->outputChanneled( "", null );
-               $this->assertOutputPrePostShutdown( "\n", false );
-       }
-
-       function testOutputChanneledWNullChannelString() {
-               $this->m->outputChanneled( "foo", null );
-               $this->assertOutputPrePostShutdown( "foo\n", false );
-       }
-
-       function testOutputChanneledWNullChannelStringString() {
-               $this->m->outputChanneled( "foo", null );
-               $this->m->outputChanneled( "bar", null );
-               $this->assertOutputPrePostShutdown( "foo\nbar\n", false );
-       }
-
-       function testOutputChanneledWNullChannelStringNLString() {
-               $this->m->outputChanneled( "foo\nbar", null );
-               $this->assertOutputPrePostShutdown( "foo\nbar\n", false );
-       }
-
-       function testOutputChanneledWNullChannelStringNLStringNLArbitraryAgain() {
-               $this->m->outputChanneled( "", null );
-               $this->m->outputChanneled( "foo", null );
-               $this->m->outputChanneled( "", null );
-               $this->m->outputChanneled( "\nb", null );
-               $this->m->outputChanneled( "a", null );
-               $this->m->outputChanneled( "", null );
-               $this->m->outputChanneled( "r", null );
-               $this->assertOutputPrePostShutdown( "\nfoo\n\n\nb\na\n\nr\n", false );
-       }
-
-       function testOutputChanneledWChannelString() {
-               $this->m->outputChanneled( "foo", "bazChannel" );
-               $this->assertOutputPrePostShutdown( "foo", true );
-       }
-
-       function testOutputChanneledWChannelStringNLString() {
-               $this->m->outputChanneled( "foo\nbar", "bazChannel" );
-               $this->assertOutputPrePostShutdown( "foo\nbar", true );
-       }
-
-       function testOutputChanneledWChannelStringString() {
-               $this->m->outputChanneled( "foo", "bazChannel" );
-               $this->m->outputChanneled( "bar", "bazChannel" );
-               $this->assertOutputPrePostShutdown( "foobar", true );
-       }
-
-       function testOutputChanneledWChannelStringNLStringNLArbitraryAgain() {
-               $this->m->outputChanneled( "", "bazChannel" );
-               $this->m->outputChanneled( "foo", "bazChannel" );
-               $this->m->outputChanneled( "", "bazChannel" );
-               $this->m->outputChanneled( "\nb", "bazChannel" );
-               $this->m->outputChanneled( "a", "bazChannel" );
-               $this->m->outputChanneled( "", "bazChannel" );
-               $this->m->outputChanneled( "r", "bazChannel" );
-               $this->assertOutputPrePostShutdown( "foo\nbar", true );
-       }
-
-       function testOutputChanneledWMultipleChannelsChannelChange() {
-               $this->m->outputChanneled( "foo", "bazChannel" );
-               $this->m->outputChanneled( "bar", "bazChannel" );
-               $this->m->outputChanneled( "qux", "quuxChannel" );
-               $this->m->outputChanneled( "corge", "bazChannel" );
-               $this->assertOutputPrePostShutdown( "foobar\nqux\ncorge", true );
-       }
-
-       function testOutputChanneledWMultipleChannelsChannelChangeEnclosedNull() {
-               $this->m->outputChanneled( "foo", "bazChannel" );
-               $this->m->outputChanneled( "bar", null );
-               $this->m->outputChanneled( "qux", null );
-               $this->m->outputChanneled( "corge", "bazChannel" );
-               $this->assertOutputPrePostShutdown( "foo\nbar\nqux\ncorge", true );
-       }
-
-       function testOutputChanneledWMultipleChannelsChannelAfterNullChange() {
-               $this->m->outputChanneled( "foo", "bazChannel" );
-               $this->m->outputChanneled( "bar", null );
-               $this->m->outputChanneled( "qux", null );
-               $this->m->outputChanneled( "corge", "quuxChannel" );
-               $this->assertOutputPrePostShutdown( "foo\nbar\nqux\ncorge", true );
-       }
-
-       function testOutputChanneledWAndWOChannelStringStartWO() {
-               $this->m->outputChanneled( "foo" );
-               $this->m->outputChanneled( "bar", "bazChannel" );
-               $this->m->outputChanneled( "qux" );
-               $this->m->outputChanneled( "quux", "bazChannel" );
-               $this->assertOutputPrePostShutdown( "foo\nbar\nqux\nquux", true );
-       }
-
-       function testOutputChanneledWAndWOChannelStringStartW() {
-               $this->m->outputChanneled( "foo", "bazChannel" );
-               $this->m->outputChanneled( "bar" );
-               $this->m->outputChanneled( "qux", "bazChannel" );
-               $this->m->outputChanneled( "quux" );
-               $this->assertOutputPrePostShutdown( "foo\nbar\nqux\nquux\n", false );
-       }
-
-       function testOutputChanneledWChannelTypeSwitch() {
-               $this->m->outputChanneled( "foo", 1 );
-               $this->m->outputChanneled( "bar", 1.0 );
-               $this->assertOutputPrePostShutdown( "foo\nbar", true );
-       }
-
-       function testOutputChanneledWOChannelIntermittentEmpty() {
-               $this->m->outputChanneled( "foo" );
-               $this->m->outputChanneled( "" );
-               $this->m->outputChanneled( "bar" );
-               $this->assertOutputPrePostShutdown( "foo\n\nbar\n", false );
-       }
-
-       function testOutputChanneledWOChannelIntermittentFalse() {
-               $this->m->outputChanneled( "foo" );
-               $this->m->outputChanneled( false );
-               $this->m->outputChanneled( "bar" );
-               $this->assertOutputPrePostShutdown( "foo\nbar\n", false );
-       }
-
-       function testOutputChanneledWNullChannelIntermittentEmpty() {
-               $this->m->outputChanneled( "foo", null );
-               $this->m->outputChanneled( "", null );
-               $this->m->outputChanneled( "bar", null );
-               $this->assertOutputPrePostShutdown( "foo\n\nbar\n", false );
-       }
-
-       function testOutputChanneledWNullChannelIntermittentFalse() {
-               $this->m->outputChanneled( "foo", null );
-               $this->m->outputChanneled( false, null );
-               $this->m->outputChanneled( "bar", null );
-               $this->assertOutputPrePostShutdown( "foo\nbar\n", false );
-       }
-
-       function testOutputChanneledWChannelIntermittentEmpty() {
-               $this->m->outputChanneled( "foo", "bazChannel" );
-               $this->m->outputChanneled( "", "bazChannel" );
-               $this->m->outputChanneled( "bar", "bazChannel" );
-               $this->assertOutputPrePostShutdown( "foobar", true );
+       /**
+        * @dataProvider provideOutputData
+        */
+       function testOutput( $outputs, $expected, $extraNL ) {
+               foreach ( $outputs as $data ) {
+                       if ( is_array( $data ) ) {
+                               list( $msg, $channel ) = $data;
+                       } else {
+                               $msg = $data;
+                               $channel = null;
+                       }
+                       $this->maintenance->output( $msg, $channel );
+               }
+               $this->assertOutputPrePostShutdown( $expected, $extraNL );
+       }
+
+       public function provideOutputData() {
+               return [
+                       [ [ "" ], "", false ],
+                       [ [ "foo" ], "foo", false ],
+                       [ [ "foo", "bar" ], "foobar", false ],
+                       [ [ "foo\n" ], "foo\n", false ],
+                       [ [ "foo\n\n" ], "foo\n\n", false ],
+                       [ [ "foo\nbar" ], "foo\nbar", false ],
+                       [ [ "foo\nbar\n" ], "foo\nbar\n", false ],
+                       [ [ "foo\n", "bar\n" ], "foo\nbar\n", false ],
+                       [ [ "", "foo", "", "\n", "ba", "", "r\n" ], "foo\nbar\n", false ],
+                       [ [ "", "foo", "", "\nb", "a", "", "r\n" ], "foo\nbar\n", false ],
+                       [ [ [ "foo", "bazChannel" ] ], "foo", true ],
+                       [ [ [ "foo\n", "bazChannel" ] ], "foo", true ],
+
+                       // If this test fails, note that output takes strings with double line
+                       // endings (although output's implementation in this situation calls
+                       // outputChanneled with a string ending in a nl ... which is not allowed
+                       // according to the documentation of outputChanneled)
+                       [ [ [ "foo\n\n", "bazChannel" ] ], "foo\n", true ],
+                       [ [ [ "foo\nbar", "bazChannel" ] ], "foo\nbar", true ],
+                       [ [ [ "foo\nbar\n", "bazChannel" ] ], "foo\nbar", true ],
+                       [
+                               [
+                                       [ "foo\n", "bazChannel" ],
+                                       [ "bar\n", "bazChannel" ],
+                               ],
+                               "foobar",
+                               true
+                       ],
+                       [
+                               [
+                                       [ "", "bazChannel" ],
+                                       [ "foo", "bazChannel" ],
+                                       [ "", "bazChannel" ],
+                                       [ "\n", "bazChannel" ],
+                                       [ "ba", "bazChannel" ],
+                                       [ "", "bazChannel" ],
+                                       [ "r\n", "bazChannel" ],
+                               ],
+                               "foobar",
+                               true
+                       ],
+                       [
+                               [
+                                       [ "", "bazChannel" ],
+                                       [ "foo", "bazChannel" ],
+                                       [ "", "bazChannel" ],
+                                       [ "\nb", "bazChannel" ],
+                                       [ "a", "bazChannel" ],
+                                       [ "", "bazChannel" ],
+                                       [ "r\n", "bazChannel" ],
+                               ],
+                               "foo\nbar",
+                               true
+                       ],
+                       [
+                               [
+                                       [ "foo", "bazChannel" ],
+                                       [ "bar", "bazChannel" ],
+                                       [ "qux", "quuxChannel" ],
+                                       [ "corge", "bazChannel" ],
+                               ],
+                               "foobar\nqux\ncorge",
+                               true
+                       ],
+                       [
+                               [
+                                       [ "foo", "bazChannel" ],
+                                       [ "bar\n", "bazChannel" ],
+                                       [ "qux\n", "quuxChannel" ],
+                                       [ "corge", "bazChannel" ],
+                               ],
+                               "foobar\nqux\ncorge",
+                               true
+                       ],
+                       [
+                               [
+                                       [ "foo", null ],
+                                       [ "bar", "bazChannel" ],
+                                       [ "qux", null ],
+                                       [ "quux", "bazChannel" ],
+                               ],
+                               "foobar\nquxquux",
+                               true
+                       ],
+                       [
+                               [
+                                       [ "foo", "bazChannel" ],
+                                       [ "bar", null ],
+                                       [ "qux", "bazChannel" ],
+                                       [ "quux", null ],
+                               ],
+                               "foo\nbarqux\nquux",
+                               false
+                       ],
+                       [
+                               [
+                                       [ "foo", 1 ],
+                                       [ "bar", 1.0 ],
+                               ],
+                               "foo\nbar",
+                               true
+                       ],
+                       [ [ "foo", "", "bar" ], "foobar", false ],
+                       [ [ "foo", false, "bar" ], "foobar", false ],
+                       [
+                               [
+                                       [ "qux", "quuxChannel" ],
+                                       "foo",
+                                       false,
+                                       "bar"
+                               ],
+                               "qux\nfoobar",
+                               false
+                       ],
+                       [
+                               [
+                                       [ "foo", "bazChannel" ],
+                                       [ "", "bazChannel" ],
+                                       [ "bar", "bazChannel" ],
+                               ],
+                               "foobar",
+                               true
+                       ],
+                       [
+                               [
+                                       [ "foo", "bazChannel" ],
+                                       [ false, "bazChannel" ],
+                                       [ "bar", "bazChannel" ],
+                               ],
+                               "foobar",
+                               true
+                       ],
+               ];
        }
 
-       function testOutputChanneledWChannelIntermittentFalse() {
-               $this->m->outputChanneled( "foo", "bazChannel" );
-               $this->m->outputChanneled( false, "bazChannel" );
-               $this->m->outputChanneled( "bar", "bazChannel" );
-               $this->assertOutputPrePostShutdown( "foo\nbar", true );
+       /**
+        * @dataProvider provideOutputChanneledData
+        */
+       function testOutputChanneled( $outputs, $expected, $extraNL ) {
+               foreach ( $outputs as $data ) {
+                       if ( is_array( $data ) ) {
+                               list( $msg, $channel ) = $data;
+                       } else {
+                               $msg = $data;
+                               $channel = null;
+                       }
+                       $this->maintenance->outputChanneled( $msg, $channel );
+               }
+               $this->assertOutputPrePostShutdown( $expected, $extraNL );
+       }
+
+       public function provideOutputChanneledData() {
+               return [
+                       [ [ "" ], "\n", false ],
+                       [ [ "foo" ], "foo\n", false ],
+                       [ [ "foo", "bar" ], "foo\nbar\n", false ],
+                       [ [ "foo\nbar" ], "foo\nbar\n", false ],
+                       [ [ "", "foo", "", "\nb", "a", "", "r" ], "\nfoo\n\n\nb\na\n\nr\n", false ],
+                       [ [ [ "foo", "bazChannel" ] ], "foo", true ],
+                       [
+                               [
+                                       [ "foo\nbar", "bazChannel" ]
+                               ],
+                               "foo\nbar",
+                               true
+                       ],
+                       [
+                               [
+                                       [ "foo", "bazChannel" ],
+                                       [ "bar", "bazChannel" ],
+                               ],
+                               "foobar",
+                               true
+                       ],
+                       [
+                               [
+                                       [ "", "bazChannel" ],
+                                       [ "foo", "bazChannel" ],
+                                       [ "", "bazChannel" ],
+                                       [ "\nb", "bazChannel" ],
+                                       [ "a", "bazChannel" ],
+                                       [ "", "bazChannel" ],
+                                       [ "r", "bazChannel" ],
+                               ],
+                               "foo\nbar",
+                               true
+                       ],
+                       [
+                               [
+                                       [ "foo", "bazChannel" ],
+                                       [ "bar", "bazChannel" ],
+                                       [ "qux", "quuxChannel" ],
+                                       [ "corge", "bazChannel" ],
+                               ],
+                               "foobar\nqux\ncorge",
+                               true
+                       ],
+                       [
+                               [
+                                       [ "foo", "bazChannel" ],
+                                       [ "bar", "bazChannel" ],
+                                       [ "qux", "quuxChannel" ],
+                                       [ "corge", "bazChannel" ],
+                               ],
+                               "foobar\nqux\ncorge",
+                               true
+                       ],
+                       [
+                               [
+                                       [ "foo", "bazChannel" ],
+                                       [ "bar", null ],
+                                       [ "qux", null ],
+                                       [ "corge", "bazChannel" ],
+                               ],
+                               "foo\nbar\nqux\ncorge",
+                               true
+                       ],
+                       [
+                               [
+                                       [ "foo", null ],
+                                       [ "bar", "bazChannel" ],
+                                       [ "qux", null ],
+                                       [ "quux", "bazChannel" ],
+                               ],
+                               "foo\nbar\nqux\nquux",
+                               true
+                       ],
+                       [
+                               [
+                                       [ "foo", "bazChannel" ],
+                                       [ "bar", null ],
+                                       [ "qux", "bazChannel" ],
+                                       [ "quux", null ],
+                               ],
+                               "foo\nbar\nqux\nquux\n",
+                               false
+                       ],
+                       [
+                               [
+                                       [ "foo", 1 ],
+                                       [ "bar", 1.0 ],
+                               ],
+                               "foo\nbar",
+                               true
+                       ],
+                       [ [ "foo", "", "bar" ], "foo\n\nbar\n", false ],
+                       [ [ "foo", false, "bar" ], "foo\nbar\n", false ],
+               ];
        }
 
        function testCleanupChanneledClean() {
-               $this->m->cleanupChanneled();
+               $this->maintenance->cleanupChanneled();
                $this->assertOutputPrePostShutdown( "", false );
        }
 
        function testCleanupChanneledAfterOutput() {
-               $this->m->output( "foo" );
-               $this->m->cleanupChanneled();
+               $this->maintenance->output( "foo" );
+               $this->maintenance->cleanupChanneled();
                $this->assertOutputPrePostShutdown( "foo", false );
        }
 
        function testCleanupChanneledAfterOutputWNullChannel() {
-               $this->m->output( "foo", null );
-               $this->m->cleanupChanneled();
+               $this->maintenance->output( "foo", null );
+               $this->maintenance->cleanupChanneled();
                $this->assertOutputPrePostShutdown( "foo", false );
        }
 
        function testCleanupChanneledAfterOutputWChannel() {
-               $this->m->output( "foo", "bazChannel" );
-               $this->m->cleanupChanneled();
+               $this->maintenance->output( "foo", "bazChannel" );
+               $this->maintenance->cleanupChanneled();
                $this->assertOutputPrePostShutdown( "foo\n", false );
        }
 
        function testCleanupChanneledAfterNLOutput() {
-               $this->m->output( "foo\n" );
-               $this->m->cleanupChanneled();
+               $this->maintenance->output( "foo\n" );
+               $this->maintenance->cleanupChanneled();
                $this->assertOutputPrePostShutdown( "foo\n", false );
        }
 
        function testCleanupChanneledAfterNLOutputWNullChannel() {
-               $this->m->output( "foo\n", null );
-               $this->m->cleanupChanneled();
+               $this->maintenance->output( "foo\n", null );
+               $this->maintenance->cleanupChanneled();
                $this->assertOutputPrePostShutdown( "foo\n", false );
        }
 
        function testCleanupChanneledAfterNLOutputWChannel() {
-               $this->m->output( "foo\n", "bazChannel" );
-               $this->m->cleanupChanneled();
+               $this->maintenance->output( "foo\n", "bazChannel" );
+               $this->maintenance->cleanupChanneled();
                $this->assertOutputPrePostShutdown( "foo\n", false );
        }
 
        function testCleanupChanneledAfterOutputChanneledWOChannel() {
-               $this->m->outputChanneled( "foo" );
-               $this->m->cleanupChanneled();
+               $this->maintenance->outputChanneled( "foo" );
+               $this->maintenance->cleanupChanneled();
                $this->assertOutputPrePostShutdown( "foo\n", false );
        }
 
        function testCleanupChanneledAfterOutputChanneledWNullChannel() {
-               $this->m->outputChanneled( "foo", null );
-               $this->m->cleanupChanneled();
+               $this->maintenance->outputChanneled( "foo", null );
+               $this->maintenance->cleanupChanneled();
                $this->assertOutputPrePostShutdown( "foo\n", false );
        }
 
        function testCleanupChanneledAfterOutputChanneledWChannel() {
-               $this->m->outputChanneled( "foo", "bazChannel" );
-               $this->m->cleanupChanneled();
+               $this->maintenance->outputChanneled( "foo", "bazChannel" );
+               $this->maintenance->cleanupChanneled();
                $this->assertOutputPrePostShutdown( "foo\n", false );
        }
 
        function testMultipleMaintenanceObjectsInteractionOutput() {
-               $m2 = new MaintenanceFixup( $this );
+               $m2 = $this->createMaintenance();
 
-               $this->m->output( "foo" );
+               $this->maintenance->output( "foo" );
                $m2->output( "bar" );
 
                $this->assertEquals( "foobar", $this->getActualOutput(),
                        "Output before shutdown simulation (m2)" );
-               $m2->simulateShutdown();
+               $m2->cleanupChanneled();
                $this->assertOutputPrePostShutdown( "foobar", false );
        }
 
        function testMultipleMaintenanceObjectsInteractionOutputWNullChannel() {
-               $m2 = new MaintenanceFixup( $this );
+               $m2 = $this->createMaintenance();
 
-               $this->m->output( "foo", null );
+               $this->maintenance->output( "foo", null );
                $m2->output( "bar", null );
 
                $this->assertEquals( "foobar", $this->getActualOutput(),
                        "Output before shutdown simulation (m2)" );
-               $m2->simulateShutdown();
+               $m2->cleanupChanneled();
                $this->assertOutputPrePostShutdown( "foobar", false );
        }
 
        function testMultipleMaintenanceObjectsInteractionOutputWChannel() {
-               $m2 = new MaintenanceFixup( $this );
+               $m2 = $this->createMaintenance();
 
-               $this->m->output( "foo", "bazChannel" );
+               $this->maintenance->output( "foo", "bazChannel" );
                $m2->output( "bar", "bazChannel" );
 
                $this->assertEquals( "foobar", $this->getActualOutput(),
                        "Output before shutdown simulation (m2)" );
-               $m2->simulateShutdown();
+               $m2->cleanupChanneled();
                $this->assertOutputPrePostShutdown( "foobar\n", true );
        }
 
        function testMultipleMaintenanceObjectsInteractionOutputWNullChannelNL() {
-               $m2 = new MaintenanceFixup( $this );
+               $m2 = $this->createMaintenance();
 
-               $this->m->output( "foo\n", null );
+               $this->maintenance->output( "foo\n", null );
                $m2->output( "bar\n", null );
 
                $this->assertEquals( "foo\nbar\n", $this->getActualOutput(),
                        "Output before shutdown simulation (m2)" );
-               $m2->simulateShutdown();
+               $m2->cleanupChanneled();
                $this->assertOutputPrePostShutdown( "foo\nbar\n", false );
        }
 
        function testMultipleMaintenanceObjectsInteractionOutputWChannelNL() {
-               $m2 = new MaintenanceFixup( $this );
+               $m2 = $this->createMaintenance();
 
-               $this->m->output( "foo\n", "bazChannel" );
+               $this->maintenance->output( "foo\n", "bazChannel" );
                $m2->output( "bar\n", "bazChannel" );
 
                $this->assertEquals( "foobar", $this->getActualOutput(),
                        "Output before shutdown simulation (m2)" );
-               $m2->simulateShutdown();
+               $m2->cleanupChanneled();
                $this->assertOutputPrePostShutdown( "foobar\n", true );
        }
 
        function testMultipleMaintenanceObjectsInteractionOutputChanneled() {
-               $m2 = new MaintenanceFixup( $this );
+               $m2 = $this->createMaintenance();
 
-               $this->m->outputChanneled( "foo" );
+               $this->maintenance->outputChanneled( "foo" );
                $m2->outputChanneled( "bar" );
 
                $this->assertEquals( "foo\nbar\n", $this->getActualOutput(),
                        "Output before shutdown simulation (m2)" );
-               $m2->simulateShutdown();
+               $m2->cleanupChanneled();
                $this->assertOutputPrePostShutdown( "foo\nbar\n", false );
        }
 
        function testMultipleMaintenanceObjectsInteractionOutputChanneledWNullChannel() {
-               $m2 = new MaintenanceFixup( $this );
+               $m2 = $this->createMaintenance();
 
-               $this->m->outputChanneled( "foo", null );
+               $this->maintenance->outputChanneled( "foo", null );
                $m2->outputChanneled( "bar", null );
 
                $this->assertEquals( "foo\nbar\n", $this->getActualOutput(),
                        "Output before shutdown simulation (m2)" );
-               $m2->simulateShutdown();
+               $m2->cleanupChanneled();
                $this->assertOutputPrePostShutdown( "foo\nbar\n", false );
        }
 
        function testMultipleMaintenanceObjectsInteractionOutputChanneledWChannel() {
-               $m2 = new MaintenanceFixup( $this );
+               $m2 = $this->createMaintenance();
 
-               $this->m->outputChanneled( "foo", "bazChannel" );
+               $this->maintenance->outputChanneled( "foo", "bazChannel" );
                $m2->outputChanneled( "bar", "bazChannel" );
 
                $this->assertEquals( "foobar", $this->getActualOutput(),
                        "Output before shutdown simulation (m2)" );
-               $m2->simulateShutdown();
+               $m2->cleanupChanneled();
                $this->assertOutputPrePostShutdown( "foobar\n", true );
        }
 
        function testMultipleMaintenanceObjectsInteractionCleanupChanneledWChannel() {
-               $m2 = new MaintenanceFixup( $this );
+               $m2 = $this->createMaintenance();
 
-               $this->m->outputChanneled( "foo", "bazChannel" );
+               $this->maintenance->outputChanneled( "foo", "bazChannel" );
                $m2->outputChanneled( "bar", "bazChannel" );
 
                $this->assertEquals( "foobar", $this->getActualOutput(),
                        "Output before first cleanup" );
-               $this->m->cleanupChanneled();
+               $this->maintenance->cleanupChanneled();
                $this->assertEquals( "foobar\n", $this->getActualOutput(),
                        "Output after first cleanup" );
                $m2->cleanupChanneled();
                $this->assertEquals( "foobar\n\n", $this->getActualOutput(),
                        "Output after second cleanup" );
 
-               $m2->simulateShutdown();
+               $m2->cleanupChanneled();
                $this->assertOutputPrePostShutdown( "foobar\n\n", false );
        }
 
@@ -822,10 +483,10 @@ class MaintenanceTest extends MediaWikiTestCase {
         * @covers Maintenance::getConfig
         */
        public function testGetConfig() {
-               $this->assertInstanceOf( 'Config', $this->m->getConfig() );
+               $this->assertInstanceOf( 'Config', $this->maintenance->getConfig() );
                $this->assertSame(
                        MediaWikiServices::getInstance()->getMainConfig(),
-                       $this->m->getConfig()
+                       $this->maintenance->getConfig()
                );
        }
 
@@ -834,12 +495,13 @@ class MaintenanceTest extends MediaWikiTestCase {
         */
        public function testSetConfig() {
                $conf = $this->createMock( 'Config' );
-               $this->m->setConfig( $conf );
-               $this->assertSame( $conf, $this->m->getConfig() );
+               $this->maintenance->setConfig( $conf );
+               $this->assertSame( $conf, $this->maintenance->getConfig() );
        }
 
        function testParseArgs() {
-               $m2 = new MaintenanceFixup( $this );
+               $m2 = $this->createMaintenance();
+
                // Create an option with an argument allowed to be specified multiple times
                $m2->addOption( 'multi', 'This option does stuff', false, true, false, true );
                $m2->loadWithArgv( [ '--multi', 'this1', '--multi', 'this2' ] );
@@ -848,9 +510,9 @@ class MaintenanceTest extends MediaWikiTestCase {
                $this->assertEquals( [ [ 'multi', 'this1' ], [ 'multi', 'this2' ] ],
                        $m2->orderedOptions );
 
-               $m2->simulateShutdown();
+               $m2->cleanupChanneled();
 
-               $m2 = new MaintenanceFixup( $this );
+               $m2 = $this->createMaintenance();
 
                $m2->addOption( 'multi', 'This option does stuff', false, false, false, true );
                $m2->loadWithArgv( [ '--multi', '--multi' ] );
@@ -858,9 +520,10 @@ class MaintenanceTest extends MediaWikiTestCase {
                $this->assertEquals( [ 1, 1 ], $m2->getOption( 'multi' ) );
                $this->assertEquals( [ [ 'multi', 1 ], [ 'multi', 1 ] ], $m2->orderedOptions );
 
-               $m2->simulateShutdown();
+               $m2->cleanupChanneled();
+
+               $m2 = $this->createMaintenance();
 
-               $m2 = new MaintenanceFixup( $this );
                // Create an option with an argument allowed to be specified multiple times
                $m2->addOption( 'multi', 'This option doesn\'t actually support multiple occurrences' );
                $m2->loadWithArgv( [ '--multi=yo' ] );
@@ -868,6 +531,6 @@ class MaintenanceTest extends MediaWikiTestCase {
                $this->assertEquals( 'yo', $m2->getOption( 'multi' ) );
                $this->assertEquals( [ [ 'multi', 'yo' ] ], $m2->orderedOptions );
 
-               $m2->simulateShutdown();
+               $m2->cleanupChanneled();
        }
 }