1 files changed, 131 insertions, 0 deletions
diff --git a/tests/phpunit/includes/media/PNGTest.php b/tests/phpunit/includes/media/PNGTest.php
new file mode 100644
index 00000000..36872a75
--- /dev/null
+++ b/tests/phpunit/includes/media/PNGTest.php
@@ -0,0 +1,131 @@
+<?php
+
+/**
+ * @group Media
+ */
+class PNGHandlerTest extends MediaWikiMediaTestCase {
+
+	/** @var PNGHandler */
+	protected $handler;
+
+	protected function setUp() {
+		parent::setUp();
+		$this->handler = new PNGHandler();
+	}
+
+	/**
+	 * @covers PNGHandler::getMetadata
+	 */
+	public function testInvalidFile() {
+		$res = $this->handler->getMetadata( null, $this->filePath . '/README' );
+		$this->assertEquals( PNGHandler::BROKEN_FILE, $res );
+	}
+
+	/**
+	 * @param string $filename Basename of the file to check
+	 * @param bool $expected Expected result.
+	 * @dataProvider provideIsAnimated
+	 * @covers PNGHandler::isAnimatedImage
+	 */
+	public function testIsAnimanted( $filename, $expected ) {
+		$file = $this->dataFile( $filename, 'image/png' );
+		$actual = $this->handler->isAnimatedImage( $file );
+		$this->assertEquals( $expected, $actual );
+	}
+
+	public static function provideIsAnimated() {
+		return array(
+			array( 'Animated_PNG_example_bouncing_beach_ball.png', true ),
+			array( '1bit-png.png', false ),
+		);
+	}
+
+	/**
+	 * @param string $filename
+	 * @param int $expected Total image area
+	 * @dataProvider provideGetImageArea
+	 * @covers PNGHandler::getImageArea
+	 */
+	public function testGetImageArea( $filename, $expected ) {
+		$file = $this->dataFile( $filename, 'image/png' );
+		$actual = $this->handler->getImageArea( $file, $file->getWidth(), $file->getHeight() );
+		$this->assertEquals( $expected, $actual );
+	}
+
+	public static function provideGetImageArea() {
+		return array(
+			array( '1bit-png.png', 2500 ),
+			array( 'greyscale-png.png', 2500 ),
+			array( 'Png-native-test.png', 126000 ),
+			array( 'Animated_PNG_example_bouncing_beach_ball.png', 10000 ),
+		);
+	}
+
+	/**
+	 * @param string $metadata Serialized metadata
+	 * @param int $expected One of the class constants of PNGHandler
+	 * @dataProvider provideIsMetadataValid
+	 * @covers PNGHandler::isMetadataValid
+	 */
+	public function testIsMetadataValid( $metadata, $expected ) {
+		$actual = $this->handler->isMetadataValid( null, $metadata );
+		$this->assertEquals( $expected, $actual );
+	}
+
+	public static function provideIsMetadataValid() {
+		return array(
+			array( PNGHandler::BROKEN_FILE, PNGHandler::METADATA_GOOD ),
+			array( '', PNGHandler::METADATA_BAD ),
+			array( null, PNGHandler::METADATA_BAD ),
+			array( 'Something invalid!', PNGHandler::METADATA_BAD ),
+			// @codingStandardsIgnoreStart Ignore Generic.Files.LineLength.TooLong
+			array( 'a:6:{s:10:"frameCount";i:0;s:9:"loopCount";i:1;s:8:"duration";d:0;s:8:"bitDepth";i:8;s:9:"colorType";s:10:"truecolour";s:8:"metadata";a:1:{s:15:"_MW_PNG_VERSION";i:1;}}', PNGHandler::METADATA_GOOD ),
+			// @codingStandardsIgnoreEnd
+		);
+	}
+
+	/**
+	 * @param string $filename
+	 * @param string $expected Serialized array
+	 * @dataProvider provideGetMetadata
+	 * @covers PNGHandler::getMetadata
+	 */
+	public function testGetMetadata( $filename, $expected ) {
+		$file = $this->dataFile( $filename, 'image/png' );
+		$actual = $this->handler->getMetadata( $file, "$this->filePath/$filename" );
+//		$this->assertEquals( unserialize( $expected ), unserialize( $actual ) );
+		$this->assertEquals( ( $expected ), ( $actual ) );
+	}
+
+	public static function provideGetMetadata() {
+		return array(
+			// @codingStandardsIgnoreStart Ignore Generic.Files.LineLength.TooLong
+			array( 'rgb-na-png.png', 'a:6:{s:10:"frameCount";i:0;s:9:"loopCount";i:1;s:8:"duration";d:0;s:8:"bitDepth";i:8;s:9:"colorType";s:10:"truecolour";s:8:"metadata";a:1:{s:15:"_MW_PNG_VERSION";i:1;}}' ),
+			array( 'xmp.png', 'a:6:{s:10:"frameCount";i:0;s:9:"loopCount";i:1;s:8:"duration";d:0;s:8:"bitDepth";i:1;s:9:"colorType";s:14:"index-coloured";s:8:"metadata";a:2:{s:12:"SerialNumber";s:9:"123456789";s:15:"_MW_PNG_VERSION";i:1;}}' ),
+			// @codingStandardsIgnoreEnd
+		);
+	}
+
+	/**
+	 * @param string $filename
+	 * @param array $expected Expected standard metadata
+	 * @dataProvider provideGetIndependentMetaArray
+	 * @covers PNGHandler::getCommonMetaArray
+	 */
+	public function testGetIndependentMetaArray( $filename, $expected ) {
+		$file = $this->dataFile( $filename, 'image/png' );
+		$actual = $this->handler->getCommonMetaArray( $file );
+		$this->assertEquals( $expected, $actual );
+	}
+
+	public static function provideGetIndependentMetaArray() {
+		return array(
+			array( 'rgb-na-png.png', array() ),
+			array( 'xmp.png',
+				array(
+					'SerialNumber' => '123456789',
+				)
+			),
+		);
+	}
+}