1 files changed, 414 insertions, 0 deletions
diff --git a/www/wiki/tests/phpunit/includes/services/ServiceContainerTest.php b/www/wiki/tests/phpunit/includes/services/ServiceContainerTest.php
new file mode 100644
index 00000000..a760908f
--- /dev/null
+++ b/www/wiki/tests/phpunit/includes/services/ServiceContainerTest.php
@@ -0,0 +1,414 @@
+<?php
+use MediaWiki\Services\ServiceContainer;
+
+/**
+ * @covers MediaWiki\Services\ServiceContainer
+ *
+ * @group MediaWiki
+ */
+class ServiceContainerTest extends PHPUnit\Framework\TestCase {
+
+	use MediaWikiCoversValidator;
+	use PHPUnit4And6Compat;
+
+	private function newServiceContainer( $extraArgs = [] ) {
+		return new ServiceContainer( $extraArgs );
+	}
+
+	public function testGetServiceNames() {
+		$services = $this->newServiceContainer();
+		$names = $services->getServiceNames();
+
+		$this->assertInternalType( 'array', $names );
+		$this->assertEmpty( $names );
+
+		$name = 'TestService92834576';
+		$services->defineService( $name, function () {
+			return null;
+		} );
+
+		$names = $services->getServiceNames();
+		$this->assertContains( $name, $names );
+	}
+
+	public function testHasService() {
+		$services = $this->newServiceContainer();
+
+		$name = 'TestService92834576';
+		$this->assertFalse( $services->hasService( $name ) );
+
+		$services->defineService( $name, function () {
+			return null;
+		} );
+
+		$this->assertTrue( $services->hasService( $name ) );
+	}
+
+	public function testGetService() {
+		$services = $this->newServiceContainer( [ 'Foo' ] );
+
+		$theService = new stdClass();
+		$name = 'TestService92834576';
+		$count = 0;
+
+		$services->defineService(
+			$name,
+			function ( $actualLocator, $extra ) use ( $services, $theService, &$count ) {
+				$count++;
+				PHPUnit_Framework_Assert::assertSame( $services, $actualLocator );
+				PHPUnit_Framework_Assert::assertSame( $extra, 'Foo' );
+				return $theService;
+			}
+		);
+
+		$this->assertSame( $theService, $services->getService( $name ) );
+
+		$services->getService( $name );
+		$this->assertSame( 1, $count, 'instantiator should be called exactly once!' );
+	}
+
+	public function testGetService_fail_unknown() {
+		$services = $this->newServiceContainer();
+
+		$name = 'TestService92834576';
+
+		$this->setExpectedException( MediaWiki\Services\NoSuchServiceException::class );
+
+		$services->getService( $name );
+	}
+
+	public function testPeekService() {
+		$services = $this->newServiceContainer();
+
+		$services->defineService(
+			'Foo',
+			function () {
+				return new stdClass();
+			}
+		);
+
+		$services->defineService(
+			'Bar',
+			function () {
+				return new stdClass();
+			}
+		);
+
+		// trigger instantiation of Foo
+		$services->getService( 'Foo' );
+
+		$this->assertInternalType(
+			'object',
+			$services->peekService( 'Foo' ),
+			'Peek should return the service object if it had been accessed before.'
+		);
+
+		$this->assertNull(
+			$services->peekService( 'Bar' ),
+			'Peek should return null if the service was never accessed.'
+		);
+	}
+
+	public function testPeekService_fail_unknown() {
+		$services = $this->newServiceContainer();
+
+		$name = 'TestService92834576';
+
+		$this->setExpectedException( MediaWiki\Services\NoSuchServiceException::class );
+
+		$services->peekService( $name );
+	}
+
+	public function testDefineService() {
+		$services = $this->newServiceContainer();
+
+		$theService = new stdClass();
+		$name = 'TestService92834576';
+
+		$services->defineService( $name, function ( $actualLocator ) use ( $services, $theService ) {
+			PHPUnit_Framework_Assert::assertSame( $services, $actualLocator );
+			return $theService;
+		} );
+
+		$this->assertTrue( $services->hasService( $name ) );
+		$this->assertSame( $theService, $services->getService( $name ) );
+	}
+
+	public function testDefineService_fail_duplicate() {
+		$services = $this->newServiceContainer();
+
+		$theService = new stdClass();
+		$name = 'TestService92834576';
+
+		$services->defineService( $name, function () use ( $theService ) {
+			return $theService;
+		} );
+
+		$this->setExpectedException( MediaWiki\Services\ServiceAlreadyDefinedException::class );
+
+		$services->defineService( $name, function () use ( $theService ) {
+			return $theService;
+		} );
+	}
+
+	public function testApplyWiring() {
+		$services = $this->newServiceContainer();
+
+		$wiring = [
+			'Foo' => function () {
+				return 'Foo!';
+			},
+			'Bar' => function () {
+				return 'Bar!';
+			},
+		];
+
+		$services->applyWiring( $wiring );
+
+		$this->assertSame( 'Foo!', $services->getService( 'Foo' ) );
+		$this->assertSame( 'Bar!', $services->getService( 'Bar' ) );
+	}
+
+	public function testImportWiring() {
+		$services = $this->newServiceContainer();
+
+		$wiring = [
+			'Foo' => function () {
+				return 'Foo!';
+			},
+			'Bar' => function () {
+				return 'Bar!';
+			},
+			'Car' => function () {
+				return 'FUBAR!';
+			},
+		];
+
+		$services->applyWiring( $wiring );
+
+		$newServices = $this->newServiceContainer();
+
+		// define a service before importing, so we can later check that
+		// existing service instances survive importWiring()
+		$newServices->defineService( 'Car', function () {
+			return 'Car!';
+		} );
+
+		// force instantiation
+		$newServices->getService( 'Car' );
+
+		// Define another service, so we can later check that extra wiring
+		// is not lost.
+		$newServices->defineService( 'Xar', function () {
+			return 'Xar!';
+		} );
+
+		// import wiring, but skip `Bar`
+		$newServices->importWiring( $services, [ 'Bar' ] );
+
+		$this->assertNotContains( 'Bar', $newServices->getServiceNames(), 'Skip `Bar` service' );
+		$this->assertSame( 'Foo!', $newServices->getService( 'Foo' ) );
+
+		// import all wiring, but preserve existing service instance
+		$newServices->importWiring( $services );
+
+		$this->assertContains( 'Bar', $newServices->getServiceNames(), 'Import all services' );
+		$this->assertSame( 'Bar!', $newServices->getService( 'Bar' ) );
+		$this->assertSame( 'Car!', $newServices->getService( 'Car' ), 'Use existing service instance' );
+		$this->assertSame( 'Xar!', $newServices->getService( 'Xar' ), 'Predefined services are kept' );
+	}
+
+	public function testLoadWiringFiles() {
+		$services = $this->newServiceContainer();
+
+		$wiringFiles = [
+			__DIR__ . '/TestWiring1.php',
+			__DIR__ . '/TestWiring2.php',
+		];
+
+		$services->loadWiringFiles( $wiringFiles );
+
+		$this->assertSame( 'Foo!', $services->getService( 'Foo' ) );
+		$this->assertSame( 'Bar!', $services->getService( 'Bar' ) );
+	}
+
+	public function testLoadWiringFiles_fail_duplicate() {
+		$services = $this->newServiceContainer();
+
+		$wiringFiles = [
+			__DIR__ . '/TestWiring1.php',
+			__DIR__ . '/./TestWiring1.php',
+		];
+
+		// loading the same file twice should fail, because
+		$this->setExpectedException( MediaWiki\Services\ServiceAlreadyDefinedException::class );
+
+		$services->loadWiringFiles( $wiringFiles );
+	}
+
+	public function testRedefineService() {
+		$services = $this->newServiceContainer( [ 'Foo' ] );
+
+		$theService1 = new stdClass();
+		$name = 'TestService92834576';
+
+		$services->defineService( $name, function () {
+			PHPUnit_Framework_Assert::fail(
+				'The original instantiator function should not get called'
+			);
+		} );
+
+		// redefine before instantiation
+		$services->redefineService(
+			$name,
+			function ( $actualLocator, $extra ) use ( $services, $theService1 ) {
+				PHPUnit_Framework_Assert::assertSame( $services, $actualLocator );
+				PHPUnit_Framework_Assert::assertSame( 'Foo', $extra );
+				return $theService1;
+			}
+		);
+
+		// force instantiation, check result
+		$this->assertSame( $theService1, $services->getService( $name ) );
+	}
+
+	public function testRedefineService_disabled() {
+		$services = $this->newServiceContainer( [ 'Foo' ] );
+
+		$theService1 = new stdClass();
+		$name = 'TestService92834576';
+
+		$services->defineService( $name, function () {
+			return 'Foo';
+		} );
+
+		// disable the service. we should be able to redefine it anyway.
+		$services->disableService( $name );
+
+		$services->redefineService( $name, function () use ( $theService1 ) {
+			return $theService1;
+		} );
+
+		// force instantiation, check result
+		$this->assertSame( $theService1, $services->getService( $name ) );
+	}
+
+	public function testRedefineService_fail_undefined() {
+		$services = $this->newServiceContainer();
+
+		$theService = new stdClass();
+		$name = 'TestService92834576';
+
+		$this->setExpectedException( MediaWiki\Services\NoSuchServiceException::class );
+
+		$services->redefineService( $name, function () use ( $theService ) {
+			return $theService;
+		} );
+	}
+
+	public function testRedefineService_fail_in_use() {
+		$services = $this->newServiceContainer( [ 'Foo' ] );
+
+		$theService = new stdClass();
+		$name = 'TestService92834576';
+
+		$services->defineService( $name, function () {
+			return 'Foo';
+		} );
+
+		// create the service, so it can no longer be redefined
+		$services->getService( $name );
+
+		$this->setExpectedException( MediaWiki\Services\CannotReplaceActiveServiceException::class );
+
+		$services->redefineService( $name, function () use ( $theService ) {
+			return $theService;
+		} );
+	}
+
+	public function testDisableService() {
+		$services = $this->newServiceContainer( [ 'Foo' ] );
+
+		$destructible = $this->getMockBuilder( MediaWiki\Services\DestructibleService::class )
+			->getMock();
+		$destructible->expects( $this->once() )
+			->method( 'destroy' );
+
+		$services->defineService( 'Foo', function () use ( $destructible ) {
+			return $destructible;
+		} );
+		$services->defineService( 'Bar', function () {
+			return new stdClass();
+		} );
+		$services->defineService( 'Qux', function () {
+			return new stdClass();
+		} );
+
+		// instantiate Foo and Bar services
+		$services->getService( 'Foo' );
+		$services->getService( 'Bar' );
+
+		// disable service, should call destroy() once.
+		$services->disableService( 'Foo' );
+
+		// disabled service should still be listed
+		$this->assertContains( 'Foo', $services->getServiceNames() );
+
+		// getting other services should still work
+		$services->getService( 'Bar' );
+
+		// disable non-destructible service, and not-yet-instantiated service
+		$services->disableService( 'Bar' );
+		$services->disableService( 'Qux' );
+
+		$this->assertNull( $services->peekService( 'Bar' ) );
+		$this->assertNull( $services->peekService( 'Qux' ) );
+
+		// disabled service should still be listed
+		$this->assertContains( 'Bar', $services->getServiceNames() );
+		$this->assertContains( 'Qux', $services->getServiceNames() );
+
+		$this->setExpectedException( MediaWiki\Services\ServiceDisabledException::class );
+		$services->getService( 'Qux' );
+	}
+
+	public function testDisableService_fail_undefined() {
+		$services = $this->newServiceContainer();
+
+		$theService = new stdClass();
+		$name = 'TestService92834576';
+
+		$this->setExpectedException( MediaWiki\Services\NoSuchServiceException::class );
+
+		$services->redefineService( $name, function () use ( $theService ) {
+			return $theService;
+		} );
+	}
+
+	public function testDestroy() {
+		$services = $this->newServiceContainer();
+
+		$destructible = $this->getMockBuilder( MediaWiki\Services\DestructibleService::class )
+			->getMock();
+		$destructible->expects( $this->once() )
+			->method( 'destroy' );
+
+		$services->defineService( 'Foo', function () use ( $destructible ) {
+			return $destructible;
+		} );
+
+		$services->defineService( 'Bar', function () {
+			return new stdClass();
+		} );
+
+		// create the service
+		$services->getService( 'Foo' );
+
+		// destroy the container
+		$services->destroy();
+
+		$this->setExpectedException( MediaWiki\Services\ContainerDisabledException::class );
+		$services->getService( 'Bar' );
+	}
+
+}