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diff --git a/tests/phpunit/includes/media/BitmapMetadataHandlerTest.php b/tests/phpunit/includes/media/BitmapMetadataHandlerTest.php
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+<?php
+
+/**
+ * @group Media
+ */
+class BitmapMetadataHandlerTest extends MediaWikiTestCase {
+
+ protected function setUp() {
+ parent::setUp();
+
+ $this->setMwGlobals( 'wgShowEXIF', false );
+
+ $this->filePath = __DIR__ . '/../../data/media/';
+ }
+
+ /**
+ * Test if having conflicting metadata values from different
+ * types of metadata, that the right one takes precedence.
+ *
+ * Basically the file has IPTC and XMP metadata, the
+ * IPTC should override the XMP, except for the multilingual
+ * translation (to en) where XMP should win.
+ * @covers BitmapMetadataHandler::Jpeg
+ */
+ public function testMultilingualCascade() {
+ $this->checkPHPExtension( 'exif' );
+ $this->checkPHPExtension( 'xml' );
+
+ $this->setMwGlobals( 'wgShowEXIF', true );
+
+ $meta = BitmapMetadataHandler::Jpeg( $this->filePath .
+ '/Xmp-exif-multilingual_test.jpg' );
+
+ $expected = array(
+ 'x-default' => 'right(iptc)',
+ 'en' => 'right translation',
+ '_type' => 'lang'
+ );
+
+ $this->assertArrayHasKey( 'ImageDescription', $meta,
+ 'Did not extract any ImageDescription info?!' );
+
+ $this->assertEquals( $expected, $meta['ImageDescription'] );
+ }
+
+ /**
+ * Test for jpeg comments are being handled by
+ * BitmapMetadataHandler correctly.
+ *
+ * There's more extensive tests of comment extraction in
+ * JpegMetadataExtractorTests.php
+ * @covers BitmapMetadataHandler::Jpeg
+ */
+ public function testJpegComment() {
+ $meta = BitmapMetadataHandler::Jpeg( $this->filePath .
+ 'jpeg-comment-utf.jpg' );
+
+ $this->assertEquals( 'UTF-8 JPEG Comment — ¼',
+ $meta['JPEGFileComment'][0] );
+ }
+
+ /**
+ * Make sure a bad iptc block doesn't stop the other metadata
+ * from being extracted.
+ * @covers BitmapMetadataHandler::Jpeg
+ */
+ public function testBadIPTC() {
+ $meta = BitmapMetadataHandler::Jpeg( $this->filePath .
+ 'iptc-invalid-psir.jpg' );
+ $this->assertEquals( 'Created with GIMP', $meta['JPEGFileComment'][0] );
+ }
+
+ /**
+ * @covers BitmapMetadataHandler::Jpeg
+ */
+ public function testIPTCDates() {
+ $meta = BitmapMetadataHandler::Jpeg( $this->filePath .
+ 'iptc-timetest.jpg' );
+
+ $this->assertEquals( '2020:07:14 01:36:05', $meta['DateTimeDigitized'] );
+ $this->assertEquals( '1997:03:02 00:01:02', $meta['DateTimeOriginal'] );
+ }
+
+ /**
+ * File has an invalid time (+ one valid but really weird time)
+ * that shouldn't be included
+ * @covers BitmapMetadataHandler::Jpeg
+ */
+ public function testIPTCDatesInvalid() {
+ $meta = BitmapMetadataHandler::Jpeg( $this->filePath .
+ 'iptc-timetest-invalid.jpg' );
+
+ $this->assertEquals( '1845:03:02 00:01:02', $meta['DateTimeOriginal'] );
+ $this->assertFalse( isset( $meta['DateTimeDigitized'] ) );
+ }
+
+ /**
+ * XMP data should take priority over iptc data
+ * when hash has been updated, but not when
+ * the hash is wrong.
+ * @covers BitmapMetadataHandler::addMetadata
+ * @covers BitmapMetadataHandler::getMetadataArray
+ */
+ public function testMerging() {
+ $merger = new BitmapMetadataHandler();
+ $merger->addMetadata( array( 'foo' => 'xmp' ), 'xmp-general' );
+ $merger->addMetadata( array( 'bar' => 'xmp' ), 'xmp-general' );
+ $merger->addMetadata( array( 'baz' => 'xmp' ), 'xmp-general' );
+ $merger->addMetadata( array( 'fred' => 'xmp' ), 'xmp-general' );
+ $merger->addMetadata( array( 'foo' => 'iptc (hash)' ), 'iptc-good-hash' );
+ $merger->addMetadata( array( 'bar' => 'iptc (bad hash)' ), 'iptc-bad-hash' );
+ $merger->addMetadata( array( 'baz' => 'iptc (bad hash)' ), 'iptc-bad-hash' );
+ $merger->addMetadata( array( 'fred' => 'iptc (no hash)' ), 'iptc-no-hash' );
+ $merger->addMetadata( array( 'baz' => 'exif' ), 'exif' );
+
+ $actual = $merger->getMetadataArray();
+ $expected = array(
+ 'foo' => 'xmp',
+ 'bar' => 'iptc (bad hash)',
+ 'baz' => 'exif',
+ 'fred' => 'xmp',
+ );
+ $this->assertEquals( $expected, $actual );
+ }
+
+ /**
+ * @covers BitmapMetadataHandler::png
+ */
+ public function testPNGXMP() {
+ if ( !extension_loaded( 'xml' ) ) {
+ $this->markTestSkipped( "This test needs the xml extension." );
+ }
+ $handler = new BitmapMetadataHandler();
+ $result = $handler->png( $this->filePath . 'xmp.png' );
+ $expected = array(
+ 'frameCount' => 0,
+ 'loopCount' => 1,
+ 'duration' => 0,
+ 'bitDepth' => 1,
+ 'colorType' => 'index-coloured',
+ 'metadata' => array(
+ 'SerialNumber' => '123456789',
+ '_MW_PNG_VERSION' => 1,
+ ),
+ );
+ $this->assertEquals( $expected, $result );
+ }
+
+ /**
+ * @covers BitmapMetadataHandler::png
+ */
+ public function testPNGNative() {
+ $handler = new BitmapMetadataHandler();
+ $result = $handler->png( $this->filePath . 'Png-native-test.png' );
+ $expected = 'http://example.com/url';
+ $this->assertEquals( $expected, $result['metadata']['Identifier']['x-default'] );
+ }
+
+ /**
+ * @covers BitmapMetadataHandler::getTiffByteOrder
+ */
+ public function testTiffByteOrder() {
+ $handler = new BitmapMetadataHandler();
+ $res = $handler->getTiffByteOrder( $this->filePath . 'test.tiff' );
+ $this->assertEquals( 'LE', $res );
+ }
+}