MediaWiki REL1_30
JpegPixelFormatTest.php
Go to the documentation of this file.
1<?php
11
12 protected function setUp() {
13 parent::setUp();
14 }
15
19 protected function createsThumbnails() {
20 return true;
21 }
22
27 public function testPixelFormatRendering( $sourceFile, $pixelFormat, $samplingFactor ) {
29 if ( !$wgUseImageMagick ) {
30 $this->markTestSkipped( "This test is only applicable when using ImageMagick thumbnailing" );
31 }
32 if ( !$wgUseImageResize ) {
33 $this->markTestSkipped( "This test is only applicable when using thumbnailing" );
34 }
35
36 $fmtStr = var_export( $pixelFormat, true );
37 $this->setMwGlobals( 'wgJpegPixelFormat', $pixelFormat );
38
39 $file = $this->dataFile( $sourceFile, 'image/jpeg' );
40
41 $params = [
42 'width' => 320,
43 ];
44 $thumb = $file->transform( $params, File::RENDER_NOW | File::RENDER_FORCE );
45 $this->assertTrue( !$thumb->isError(), "created JPEG thumbnail for pixel format $fmtStr" );
46
47 $path = $thumb->getLocalCopyPath();
48 $this->assertTrue( is_string( $path ), "path returned for JPEG thumbnail for $fmtStr" );
49
50 $cmd = [
51 'identify',
52 '-format',
53 '%[jpeg:sampling-factor]',
54 $path
55 ];
56 $retval = null;
57 $output = wfShellExec( $cmd, $retval );
58 $this->assertTrue( $retval === 0, "ImageMagick's identify command should return success" );
59
60 $expected = $samplingFactor;
61 $actual = trim( $output );
62 $this->assertEquals(
63 $expected,
64 trim( $output ),
65 "IM identify expects JPEG chroma subsampling \"$expected\" for $fmtStr"
66 );
67 }
68
69 public static function providePixelFormats() {
70 return [
71 // From 4:4:4 source file
72 [
73 'yuv444.jpg',
74 false,
75 '1x1,1x1,1x1'
76 ],
77 [
78 'yuv444.jpg',
79 'yuv444',
80 '1x1,1x1,1x1'
81 ],
82 [
83 'yuv444.jpg',
84 'yuv422',
85 '2x1,1x1,1x1'
86 ],
87 [
88 'yuv444.jpg',
89 'yuv420',
90 '2x2,1x1,1x1'
91 ],
92 // From 4:2:0 source file
93 [
94 'yuv420.jpg',
95 false,
96 '2x2,1x1,1x1'
97 ],
98 [
99 'yuv420.jpg',
100 'yuv444',
101 '1x1,1x1,1x1'
102 ],
103 [
104 'yuv420.jpg',
105 'yuv422',
106 '2x1,1x1,1x1'
107 ],
108 [
109 'yuv420.jpg',
110 'yuv420',
111 '2x2,1x1,1x1'
112 ]
113 ];
114 }
115}
$wgUseImageResize
Whether to enable server-side image thumbnailing.
$wgUseImageMagick
Resizing can be done using PHP's internal image libraries or using ImageMagick or another third-party...
wfShellExec( $cmd, &$retval=null, $environ=[], $limits=[], $options=[])
Execute a shell command, with time and memory limits mirrored from the PHP configuration if supported...
const RENDER_NOW
Force rendering in the current process.
Definition File.php:59
const RENDER_FORCE
Force rendering even if thumbnail already exist and using RENDER_NOW I.e.
Definition File.php:64
Tests related to JPEG chroma subsampling via $wgJpegPixelFormat setting.
createsThumbnails()
Mark this test as creating thumbnail files.
testPixelFormatRendering( $sourceFile, $pixelFormat, $samplingFactor)
providePixelFormats
Specificly for testing Media handlers.
dataFile( $name, $type=null)
Utility function: Get a new file object for a file on disk but not actually in db.
setMwGlobals( $pairs, $value=null)
Sets a global, maintaining a stashed version of the previous global to be restored in tearDown.
please add to it if you re going to add events to the MediaWiki code where normally authentication against an external auth plugin would be creating a local account incomplete not yet checked for validity & $retval
Definition hooks.txt:266
static configuration should be added through ResourceLoaderGetConfigVars instead can be used to get the real title after the basic globals have been set but before ordinary actions take place $output
Definition hooks.txt:2225
$params