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functions.php
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<?php
/**
* @group image
* @group media
* @group upload
*/
class Tests_Image_Functions extends WP_UnitTestCase {
/**
* Setup test fixture
*/
public function setUp() {
parent::setUp();
require_once( ABSPATH . WPINC . '/class-wp-image-editor.php' );
require_once( ABSPATH . WPINC . '/class-wp-image-editor-gd.php' );
require_once( ABSPATH . WPINC . '/class-wp-image-editor-imagick.php' );
include_once( DIR_TESTDATA . '/../includes/mock-image-editor.php' );
}
/**
* Get the MIME type of a file
* @param string $filename
* @return string
*/
protected function get_mime_type( $filename ) {
$mime_type = '';
if ( extension_loaded( 'fileinfo' ) ) {
$finfo = new finfo();
$mime_type = $finfo->file( $filename, FILEINFO_MIME );
}
if ( false !== strpos( $mime_type, ';' ) ) {
list( $mime_type, $charset ) = explode( ';', $mime_type, 2 );
}
return $mime_type;
}
function test_is_image_positive() {
// these are all image files recognized by php
$files = array(
'test-image-cmyk.jpg',
'test-image.bmp',
'test-image-grayscale.jpg',
'test-image.gif',
'test-image.png',
'test-image.tiff',
'test-image-lzw.tiff',
'test-image.jp2',
'test-image.psd',
'test-image-zip.tiff',
'test-image.jpg',
);
foreach ($files as $file) {
$this->assertTrue( file_is_valid_image( DIR_TESTDATA.'/images/'.$file ), "file_is_valid_image($file) should return true" );
}
}
function test_is_image_negative() {
// these are actually image files but aren't recognized or usable by php
$files = array(
'test-image.pct',
'test-image.tga',
'test-image.sgi',
);
foreach ($files as $file) {
$this->assertFalse( file_is_valid_image( DIR_TESTDATA.'/images/'.$file ), "file_is_valid_image($file) should return false" );
}
}
function test_is_displayable_image_positive() {
// these are all usable in typical web browsers
$files = array(
'test-image.gif',
'test-image.png',
'test-image.jpg',
);
foreach ($files as $file) {
$this->assertTrue( file_is_displayable_image( DIR_TESTDATA.'/images/'.$file ), "file_is_valid_image($file) should return true" );
}
}
function test_is_displayable_image_negative() {
// these are image files but aren't suitable for web pages because of compatibility or size issues
$files = array(
// 'test-image-cmyk.jpg', Allowed in r9727
// 'test-image.bmp', Allowed in r28589
// 'test-image-grayscale.jpg', Allowed in r9727
'test-image.pct',
'test-image.tga',
'test-image.sgi',
'test-image.tiff',
'test-image-lzw.tiff',
'test-image.jp2',
'test-image.psd',
'test-image-zip.tiff',
);
foreach ($files as $file) {
$this->assertFalse( file_is_displayable_image( DIR_TESTDATA.'/images/'.$file ), "file_is_valid_image($file) should return false" );
}
}
/**
* Test save image file and mime_types
* @ticket 6821
*/
public function test_wp_save_image_file() {
if ( ! extension_loaded( 'fileinfo' ) ) {
$this->markTestSkipped( 'The fileinfo PHP extension is not loaded.' );
}
include_once( ABSPATH . 'wp-admin/includes/image-edit.php' );
// Mime types
$mime_types = array(
'image/jpeg',
'image/gif',
'image/png'
);
// Test each image editor engine
$classes = array('WP_Image_Editor_GD', 'WP_Image_Editor_Imagick');
foreach ( $classes as $class ) {
// If the image editor isn't available, skip it
if ( ! call_user_func( array( $class, 'test' ) ) ) {
continue;
}
$img = new $class( DIR_TESTDATA . '/images/canola.jpg' );
$loaded = $img->load();
// Save a file as each mime type, assert it works
foreach ( $mime_types as $mime_type ) {
if ( ! $img->supports_mime_type( $mime_type ) ) {
continue;
}
$file = wp_tempnam();
$ret = wp_save_image_file( $file, $img, $mime_type, 1 );
$this->assertNotEmpty( $ret );
$this->assertNotInstanceOf( 'WP_Error', $ret );
$this->assertEquals( $mime_type, $this->get_mime_type( $ret['path'] ) );
// Clean up
unlink( $file );
unlink( $ret['path'] );
}
// Clean up
unset( $img );
}
}
/**
* Test that a passed mime type overrides the extension in the filename
* @ticket 6821
*/
public function test_mime_overrides_filename() {
if ( ! extension_loaded( 'fileinfo' ) ) {
$this->markTestSkipped( 'The fileinfo PHP extension is not loaded.' );
}
// Test each image editor engine
$classes = array('WP_Image_Editor_GD', 'WP_Image_Editor_Imagick');
foreach ( $classes as $class ) {
// If the image editor isn't available, skip it
if ( ! call_user_func( array( $class, 'test' ) ) ) {
continue;
}
$img = new $class( DIR_TESTDATA . '/images/canola.jpg' );
$loaded = $img->load();
// Save the file
$mime_type = 'image/gif';
$file = wp_tempnam( 'tmp.jpg' );
$ret = $img->save( $file, $mime_type );
// Make assertions
$this->assertNotEmpty( $ret );
$this->assertNotInstanceOf( 'WP_Error', $ret );
$this->assertEquals( $mime_type, $this->get_mime_type( $ret['path'] ) );
// Clean up
unlink( $file );
unlink( $ret['path'] );
unset( $img );
}
}
/**
* Test that mime types are correctly inferred from file extensions
* @ticket 6821
*/
public function test_inferred_mime_types() {
if ( ! extension_loaded( 'fileinfo' ) ) {
$this->markTestSkipped( 'The fileinfo PHP extension is not loaded.' );
}
// Mime types
$mime_types = array(
'jpg' => 'image/jpeg',
'jpeg' => 'image/jpeg',
'jpe' => 'image/jpeg',
'gif' => 'image/gif',
'png' => 'image/png',
'unk' => 'image/jpeg' // Default, unknown
);
// Test each image editor engine
$classes = array('WP_Image_Editor_GD', 'WP_Image_Editor_Imagick');
foreach ( $classes as $class ) {
// If the image editor isn't available, skip it
if ( ! call_user_func( array( $class, 'test' ) ) ) {
continue;
}
$img = new $class( DIR_TESTDATA . '/images/canola.jpg' );
$loaded = $img->load();
// Save the image as each file extension, check the mime type
$img = wp_get_image_editor( DIR_TESTDATA . '/images/canola.jpg' );
$this->assertNotInstanceOf( 'WP_Error', $img );
$temp = get_temp_dir();
foreach ( $mime_types as $ext => $mime_type ) {
if ( ! $img->supports_mime_type( $mime_type ) ) {
continue;
}
$file = wp_unique_filename( $temp, uniqid() . ".$ext" );
$ret = $img->save( trailingslashit( $temp ) . $file );
$this->assertNotEmpty( $ret );
$this->assertNotInstanceOf( 'WP_Error', $ret );
$this->assertEquals( $mime_type, $this->get_mime_type( $ret['path'] ) );
unlink( $ret['path'] );
}
// Clean up
unset( $img );
}
}
/**
* Try loading a directory
*
* @ticket 17814
* @expectedDeprecated wp_load_image
*/
public function test_load_directory() {
// First, test with deprecated wp_load_image function
$editor1 = wp_load_image( DIR_TESTDATA );
$this->assertNotInternalType( 'resource', $editor1 );
$editor2 = wp_get_image_editor( DIR_TESTDATA );
$this->assertNotInternalType( 'resource', $editor2 );
// Then, test with editors.
$classes = array('WP_Image_Editor_GD', 'WP_Image_Editor_Imagick');
foreach ( $classes as $class ) {
// If the image editor isn't available, skip it
if ( ! call_user_func( array( $class, 'test' ) ) ) {
continue;
}
$editor = new $class( DIR_TESTDATA );
$loaded = $editor->load();
$this->assertInstanceOf( 'WP_Error', $loaded );
$this->assertEquals( 'error_loading_image', $loaded->get_error_code() );
}
}
public function test_wp_crop_image_file() {
if ( !function_exists( 'imagejpeg' ) )
$this->markTestSkipped( 'jpeg support unavailable' );
$file = wp_crop_image( DIR_TESTDATA . '/images/canola.jpg',
0, 0, 100, 100, 100, 100 );
$this->assertNotInstanceOf( 'WP_Error', $file );
$this->assertFileExists( $file );
$image = wp_get_image_editor( $file );
$size = $image->get_size();
$this->assertEquals( 100, $size['height'] );
$this->assertEquals( 100, $size['width'] );
unlink( $file );
}
public function test_wp_crop_image_url() {
if ( !function_exists( 'imagejpeg' ) )
$this->markTestSkipped( 'jpeg support unavailable' );
if ( ! extension_loaded( 'openssl' ) ) {
$this->markTestSkipped( 'Tests_Image_Functions::test_wp_crop_image_url() requires openssl.' );
}
$file = wp_crop_image( 'https://asdftestblog1.files.wordpress.com/2008/04/canola.jpg',
0, 0, 100, 100, 100, 100, false,
DIR_TESTDATA . '/images/' . rand_str() . '.jpg' );
$this->assertNotInstanceOf( 'WP_Error', $file );
$this->assertFileExists( $file );
$image = wp_get_image_editor( $file );
$size = $image->get_size();
$this->assertEquals( 100, $size['height'] );
$this->assertEquals( 100, $size['width'] );
unlink( $file );
}
public function test_wp_crop_image_file_not_exist() {
$file = wp_crop_image( DIR_TESTDATA . '/images/canoladoesnotexist.jpg',
0, 0, 100, 100, 100, 100 );
$this->assertInstanceOf( 'WP_Error', $file );
}
public function test_wp_crop_image_url_not_exist() {
if ( ! extension_loaded( 'openssl' ) ) {
$this->markTestSkipped( 'Tests_Image_Functions::test_wp_crop_image_url_not_exist() requires openssl.' );
}
$file = wp_crop_image( 'https://asdftestblog1.files.wordpress.com/2008/04/canoladoesnotexist.jpg',
0, 0, 100, 100, 100, 100 );
$this->assertInstanceOf( 'WP_Error', $file );
}
function mock_image_editor( $editors ) {
return array( 'WP_Image_Editor_Mock' );
}
/**
* @ticket 23325
*/
public function test_wp_crop_image_error_on_saving() {
WP_Image_Editor_Mock::$save_return = new WP_Error();
add_filter( 'wp_image_editors', array( $this, 'mock_image_editor' ) );
$file = wp_crop_image( DIR_TESTDATA . '/images/canola.jpg',
0, 0, 100, 100, 100, 100 );
$this->assertInstanceOf( 'WP_Error', $file );
remove_filter( 'wp_image_editors', array( $this, 'mock_image_editor' ) );
WP_Image_Editor_Mock::$save_return = array();
}
}