MediaWiki REL1_28
PNGMetadataExtractorTest.php
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1<?php
2
8
9 protected function setUp() {
10 parent::setUp();
11 $this->filePath = __DIR__ . '/../../data/media/';
12 }
13
17 public function testPngNativetZtxt() {
18 $this->checkPHPExtension( 'zlib' );
19
20 $meta = PNGMetadataExtractor::getMetadata( $this->filePath .
21 'Png-native-test.png' );
22 $expected = "foo bar baz foo foo foo foof foo foo foo foo";
23 $this->assertArrayHasKey( 'text', $meta );
24 $meta = $meta['text'];
25 $this->assertArrayHasKey( 'Make', $meta );
26 $this->assertArrayHasKey( 'x-default', $meta['Make'] );
27
28 $this->assertEquals( $expected, $meta['Make']['x-default'] );
29 }
30
34 public function testPngNativeText() {
35 $meta = PNGMetadataExtractor::getMetadata( $this->filePath .
36 'Png-native-test.png' );
37 $expected = "Some long image desc";
38 $this->assertArrayHasKey( 'text', $meta );
39 $meta = $meta['text'];
40 $this->assertArrayHasKey( 'ImageDescription', $meta );
41 $this->assertArrayHasKey( 'x-default', $meta['ImageDescription'] );
42 $this->assertArrayHasKey( '_type', $meta['ImageDescription'] );
43
44 $this->assertEquals( $expected, $meta['ImageDescription']['x-default'] );
45 }
46
51 public function testPngNativeTextNonAscii() {
52 $meta = PNGMetadataExtractor::getMetadata( $this->filePath .
53 'Png-native-test.png' );
54
55 // Note the Copyright symbol here is a utf-8 one
56 // (aka \xC2\xA9) where in the file its iso-8859-1
57 // encoded as just \xA9.
58 $expected = "© 2010 Bawolff";
59
60 $this->assertArrayHasKey( 'text', $meta );
61 $meta = $meta['text'];
62 $this->assertArrayHasKey( 'Copyright', $meta );
63 $this->assertArrayHasKey( 'x-default', $meta['Copyright'] );
64
65 $this->assertEquals( $expected, $meta['Copyright']['x-default'] );
66 }
67
72 /*
73 public function testPngPhysTag() {
74 $meta = PNGMetadataExtractor::getMetadata( $this->filePath .
75 'Png-native-test.png' );
76
77 $this->assertArrayHasKey( 'text', $meta );
78 $meta = $meta['text'];
79
80 $this->assertEquals( '2835/100', $meta['XResolution'] );
81 $this->assertEquals( '2835/100', $meta['YResolution'] );
82 $this->assertEquals( 3, $meta['ResolutionUnit'] ); // 3 = cm
83 }
84 */
85
90 $meta = PNGMetadataExtractor::getMetadata( $this->filePath .
91 'Png-native-test.png' );
92
93 $this->assertEquals( 0, $meta['frameCount'] );
94 $this->assertEquals( 1, $meta['loopCount'] );
95 $this->assertEquals( 0, $meta['duration'] );
96 }
97
102 public function testApngAnimationMetadata() {
103 $meta = PNGMetadataExtractor::getMetadata( $this->filePath .
104 'Animated_PNG_example_bouncing_beach_ball.png' );
105
106 $this->assertEquals( 20, $meta['frameCount'] );
107 // Note loop count of 0 = infinity
108 $this->assertEquals( 0, $meta['loopCount'] );
109 $this->assertEquals( 1.5, $meta['duration'], '', 0.00001 );
110 }
111
112 public function testPngBitDepth8() {
113 $meta = PNGMetadataExtractor::getMetadata( $this->filePath .
114 'Png-native-test.png' );
115
116 $this->assertEquals( 8, $meta['bitDepth'] );
117 }
118
119 public function testPngBitDepth1() {
120 $meta = PNGMetadataExtractor::getMetadata( $this->filePath .
121 '1bit-png.png' );
122 $this->assertEquals( 1, $meta['bitDepth'] );
123 }
124
125 public function testPngIndexColour() {
126 $meta = PNGMetadataExtractor::getMetadata( $this->filePath .
127 'Png-native-test.png' );
128
129 $this->assertEquals( 'index-coloured', $meta['colorType'] );
130 }
131
132 public function testPngRgbColour() {
133 $meta = PNGMetadataExtractor::getMetadata( $this->filePath .
134 'rgb-png.png' );
135 $this->assertEquals( 'truecolour-alpha', $meta['colorType'] );
136 }
137
138 public function testPngRgbNoAlphaColour() {
139 $meta = PNGMetadataExtractor::getMetadata( $this->filePath .
140 'rgb-na-png.png' );
141 $this->assertEquals( 'truecolour', $meta['colorType'] );
142 }
143
144 public function testPngGreyscaleColour() {
145 $meta = PNGMetadataExtractor::getMetadata( $this->filePath .
146 'greyscale-png.png' );
147 $this->assertEquals( 'greyscale-alpha', $meta['colorType'] );
148 }
149
151 $meta = PNGMetadataExtractor::getMetadata( $this->filePath .
152 'greyscale-na-png.png' );
153 $this->assertEquals( 'greyscale', $meta['colorType'] );
154 }
155}
checkPHPExtension( $extName)
Check if $extName is a loaded PHP extension, will skip the test whenever it is not loaded.
Media PNGMetadataExtractor.
testPngNativetZtxt()
Tests zTXt tag (compressed textual metadata)
testPngNativeText()
Test tEXt tag (Uncompressed textual metadata)
testPngNativeTextNonAscii()
tEXt tags must be encoded iso-8859-1 (vs iTXt which are utf-8) Make sure non-ascii characters get con...
testStaticPngAnimationMetadata()
Test extraction of pHYs tags, which can tell what the actual resolution of the image is (aka in dots ...
testApngAnimationMetadata()
Given an animated APNG image file check it gets animated metadata right.
static getMetadata( $filename)
injection txt This is an overview of how MediaWiki makes use of dependency injection The design described here grew from the discussion of RFC T384 The term dependency this means that anything an object needs to operate should be injected from the the object itself should only know narrow no concrete implementation of the logic it relies on The requirement to inject everything typically results in an architecture that based on two main types of and essentially stateless service objects that use other service objects to operate on the value objects As of the beginning MediaWiki is only starting to use the DI approach Much of the code still relies on global state or direct resulting in a highly cyclical dependency which acts as the top level factory for services in MediaWiki which can be used to gain access to default instances of various services MediaWikiServices however also allows new services to be defined and default services to be redefined Services are defined or redefined by providing a callback the instantiator that will return a new instance of the service When it will create an instance of MediaWikiServices and populate it with the services defined in the files listed by thereby bootstrapping the DI framework Per $wgServiceWiringFiles lists includes ServiceWiring php
Definition injection.txt:37