1 files changed, 140 insertions, 0 deletions
diff --git a/www/wiki/tests/phpunit/includes/debug/MWDebugTest.php b/www/wiki/tests/phpunit/includes/debug/MWDebugTest.php
new file mode 100644
index 00000000..6f0b1db9
--- /dev/null
+++ b/www/wiki/tests/phpunit/includes/debug/MWDebugTest.php
@@ -0,0 +1,140 @@
+<?php
+
+class MWDebugTest extends MediaWikiTestCase {
+
+	protected function setUp() {
+		parent::setUp();
+		/** Clear log before each test */
+		MWDebug::clearLog();
+	}
+
+	public static function setUpBeforeClass() {
+		parent::setUpBeforeClass();
+		MWDebug::init();
+		Wikimedia\suppressWarnings();
+	}
+
+	public static function tearDownAfterClass() {
+		parent::tearDownAfterClass();
+		MWDebug::deinit();
+		Wikimedia\restoreWarnings();
+	}
+
+	/**
+	 * @covers MWDebug::log
+	 */
+	public function testAddLog() {
+		MWDebug::log( 'logging a string' );
+		$this->assertEquals(
+			[ [
+				'msg' => 'logging a string',
+				'type' => 'log',
+				'caller' => 'MWDebugTest->testAddLog',
+			] ],
+			MWDebug::getLog()
+		);
+	}
+
+	/**
+	 * @covers MWDebug::warning
+	 */
+	public function testAddWarning() {
+		MWDebug::warning( 'Warning message' );
+		$this->assertEquals(
+			[ [
+				'msg' => 'Warning message',
+				'type' => 'warn',
+				'caller' => 'MWDebugTest::testAddWarning',
+			] ],
+			MWDebug::getLog()
+		);
+	}
+
+	/**
+	 * @covers MWDebug::deprecated
+	 */
+	public function testAvoidDuplicateDeprecations() {
+		MWDebug::deprecated( 'wfOldFunction', '1.0', 'component' );
+		MWDebug::deprecated( 'wfOldFunction', '1.0', 'component' );
+
+		// assertCount() not available on WMF integration server
+		$this->assertEquals( 1,
+			count( MWDebug::getLog() ),
+			"Only one deprecated warning per function should be kept"
+		);
+	}
+
+	/**
+	 * @covers MWDebug::deprecated
+	 */
+	public function testAvoidNonConsecutivesDuplicateDeprecations() {
+		MWDebug::deprecated( 'wfOldFunction', '1.0', 'component' );
+		MWDebug::warning( 'some warning' );
+		MWDebug::log( 'we could have logged something too' );
+		// Another deprecation
+		MWDebug::deprecated( 'wfOldFunction', '1.0', 'component' );
+
+		// assertCount() not available on WMF integration server
+		$this->assertEquals( 3,
+			count( MWDebug::getLog() ),
+			"Only one deprecated warning per function should be kept"
+		);
+	}
+
+	/**
+	 * @covers MWDebug::appendDebugInfoToApiResult
+	 */
+	public function testAppendDebugInfoToApiResultXmlFormat() {
+		$request = $this->newApiRequest(
+			[ 'action' => 'help', 'format' => 'xml' ],
+			'/api.php?action=help&format=xml'
+		);
+
+		$context = new RequestContext();
+		$context->setRequest( $request );
+
+		$apiMain = new ApiMain( $context );
+
+		$result = new ApiResult( $apiMain );
+
+		MWDebug::appendDebugInfoToApiResult( $context, $result );
+
+		$this->assertInstanceOf( ApiResult::class, $result );
+		$data = $result->getResultData();
+
+		$expectedKeys = [ 'mwVersion', 'phpEngine', 'phpVersion', 'gitRevision', 'gitBranch',
+			'gitViewUrl', 'time', 'log', 'debugLog', 'queries', 'request', 'memory',
+			'memoryPeak', 'includes', '_element' ];
+
+		foreach ( $expectedKeys as $expectedKey ) {
+			$this->assertArrayHasKey( $expectedKey, $data['debuginfo'], "debuginfo has $expectedKey" );
+		}
+
+		$xml = ApiFormatXml::recXmlPrint( 'help', $data, null );
+
+		// exception not thrown
+		$this->assertInternalType( 'string', $xml );
+	}
+
+	/**
+	 * @param string[] $params
+	 * @param string $requestUrl
+	 *
+	 * @return FauxRequest
+	 */
+	private function newApiRequest( array $params, $requestUrl ) {
+		$request = $this->getMockBuilder( FauxRequest::class )
+			->setMethods( [ 'getRequestURL' ] )
+			->setConstructorArgs( [
+				$params
+			] )
+			->getMock();
+
+		$request->expects( $this->any() )
+			->method( 'getRequestURL' )
+			->will( $this->returnValue( $requestUrl ) );
+
+		return $request;
+	}
+
+}