579 lines
20 KiB
Plaintext
579 lines
20 KiB
Plaintext
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<?php
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/**
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* @file
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* Tests for core image handling API.
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*/
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/**
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* Base class for image manipulation testing.
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*/
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class ImageToolkitTestCase extends DrupalWebTestCase {
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protected $toolkit;
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protected $file;
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protected $image;
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function setUp() {
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$modules = func_get_args();
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if (isset($modules[0]) && is_array($modules[0])) {
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$modules = $modules[0];
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}
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$modules[] = 'image_test';
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parent::setUp($modules);
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// Use the image_test.module's test toolkit.
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$this->toolkit = 'test';
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// Pick a file for testing.
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$file = current($this->drupalGetTestFiles('image'));
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$this->file = $file->uri;
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// Setup a dummy image to work with, this replicate image_load() so we
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// can avoid calling it.
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$this->image = new stdClass();
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$this->image->source = $this->file;
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$this->image->info = image_get_info($this->file);
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$this->image->toolkit = $this->toolkit;
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// Clear out any hook calls.
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image_test_reset();
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}
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/**
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* Assert that all of the specified image toolkit operations were called
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* exactly once once, other values result in failure.
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*
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* @param $expected
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* Array with string containing with the operation name, e.g. 'load',
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* 'save', 'crop', etc.
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*/
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function assertToolkitOperationsCalled(array $expected) {
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// Determine which operations were called.
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$actual = array_keys(array_filter(image_test_get_all_calls()));
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// Determine if there were any expected that were not called.
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$uncalled = array_diff($expected, $actual);
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if (count($uncalled)) {
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$this->assertTrue(FALSE, format_string('Expected operations %expected to be called but %uncalled was not called.', array('%expected' => implode(', ', $expected), '%uncalled' => implode(', ', $uncalled))));
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}
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else {
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$this->assertTrue(TRUE, format_string('All the expected operations were called: %expected', array('%expected' => implode(', ', $expected))));
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}
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// Determine if there were any unexpected calls.
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$unexpected = array_diff($actual, $expected);
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if (count($unexpected)) {
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$this->assertTrue(FALSE, format_string('Unexpected operations were called: %unexpected.', array('%unexpected' => implode(', ', $unexpected))));
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}
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else {
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$this->assertTrue(TRUE, 'No unexpected operations were called.');
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}
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}
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}
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/**
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* Test that the functions in image.inc correctly pass data to the toolkit.
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*/
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class ImageToolkitUnitTest extends ImageToolkitTestCase {
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public static function getInfo() {
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return array(
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'name' => 'Image toolkit tests',
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'description' => 'Check image toolkit functions.',
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'group' => 'Image',
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);
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}
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/**
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* Check that hook_image_toolkits() is called and only available toolkits are
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* returned.
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*/
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function testGetAvailableToolkits() {
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$toolkits = image_get_available_toolkits();
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$this->assertTrue(isset($toolkits['test']), 'The working toolkit was returned.');
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$this->assertFalse(isset($toolkits['broken']), 'The toolkit marked unavailable was not returned');
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$this->assertToolkitOperationsCalled(array());
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}
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/**
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* Test the image_load() function.
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*/
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function testLoad() {
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$image = image_load($this->file, $this->toolkit);
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$this->assertTrue(is_object($image), 'Returned an object.');
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$this->assertEqual($this->toolkit, $image->toolkit, 'Image had toolkit set.');
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$this->assertToolkitOperationsCalled(array('load', 'get_info'));
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}
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/**
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* Test the image_save() function.
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*/
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function testSave() {
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$this->assertFalse(image_save($this->image), 'Function returned the expected value.');
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$this->assertToolkitOperationsCalled(array('save'));
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}
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/**
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* Test the image_resize() function.
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*/
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function testResize() {
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$this->assertTrue(image_resize($this->image, 1, 2), 'Function returned the expected value.');
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$this->assertToolkitOperationsCalled(array('resize'));
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// Check the parameters.
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$calls = image_test_get_all_calls();
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$this->assertEqual($calls['resize'][0][1], 1, 'Width was passed correctly');
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$this->assertEqual($calls['resize'][0][2], 2, 'Height was passed correctly');
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}
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/**
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* Test the image_scale() function.
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*/
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function testScale() {
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// TODO: need to test upscaling
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$this->assertTrue(image_scale($this->image, 10, 10), 'Function returned the expected value.');
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$this->assertToolkitOperationsCalled(array('resize'));
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// Check the parameters.
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$calls = image_test_get_all_calls();
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$this->assertEqual($calls['resize'][0][1], 10, 'Width was passed correctly');
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$this->assertEqual($calls['resize'][0][2], 5, 'Height was based off aspect ratio and passed correctly');
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}
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/**
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* Test the image_scale_and_crop() function.
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*/
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function testScaleAndCrop() {
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$this->assertTrue(image_scale_and_crop($this->image, 5, 10), 'Function returned the expected value.');
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$this->assertToolkitOperationsCalled(array('resize', 'crop'));
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// Check the parameters.
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$calls = image_test_get_all_calls();
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$this->assertEqual($calls['crop'][0][1], 7.5, 'X was computed and passed correctly');
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$this->assertEqual($calls['crop'][0][2], 0, 'Y was computed and passed correctly');
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$this->assertEqual($calls['crop'][0][3], 5, 'Width was computed and passed correctly');
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$this->assertEqual($calls['crop'][0][4], 10, 'Height was computed and passed correctly');
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}
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/**
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* Test the image_rotate() function.
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*/
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function testRotate() {
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$this->assertTrue(image_rotate($this->image, 90, 1), 'Function returned the expected value.');
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$this->assertToolkitOperationsCalled(array('rotate'));
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// Check the parameters.
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$calls = image_test_get_all_calls();
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$this->assertEqual($calls['rotate'][0][1], 90, 'Degrees were passed correctly');
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$this->assertEqual($calls['rotate'][0][2], 1, 'Background color was passed correctly');
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}
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/**
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* Test the image_crop() function.
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*/
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function testCrop() {
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$this->assertTrue(image_crop($this->image, 1, 2, 3, 4), 'Function returned the expected value.');
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$this->assertToolkitOperationsCalled(array('crop'));
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// Check the parameters.
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$calls = image_test_get_all_calls();
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$this->assertEqual($calls['crop'][0][1], 1, 'X was passed correctly');
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$this->assertEqual($calls['crop'][0][2], 2, 'Y was passed correctly');
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$this->assertEqual($calls['crop'][0][3], 3, 'Width was passed correctly');
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$this->assertEqual($calls['crop'][0][4], 4, 'Height was passed correctly');
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}
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/**
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* Test the image_desaturate() function.
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*/
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function testDesaturate() {
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$this->assertTrue(image_desaturate($this->image), 'Function returned the expected value.');
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$this->assertToolkitOperationsCalled(array('desaturate'));
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// Check the parameters.
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$calls = image_test_get_all_calls();
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$this->assertEqual(count($calls['desaturate'][0]), 1, 'Only the image was passed.');
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}
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}
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/**
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* Test the core GD image manipulation functions.
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*/
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class ImageToolkitGdTestCase extends DrupalWebTestCase {
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// Colors that are used in testing.
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protected $black = array(0, 0, 0, 0);
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protected $red = array(255, 0, 0, 0);
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protected $green = array(0, 255, 0, 0);
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protected $blue = array(0, 0, 255, 0);
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protected $yellow = array(255, 255, 0, 0);
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protected $white = array(255, 255, 255, 0);
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protected $transparent = array(0, 0, 0, 127);
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// Used as rotate background colors.
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protected $fuchsia = array(255, 0, 255, 0);
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protected $rotate_transparent = array(255, 255, 255, 127);
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protected $width = 40;
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protected $height = 20;
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public static function getInfo() {
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return array(
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'name' => 'Image GD manipulation tests',
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'description' => 'Check that core image manipulations work properly: scale, resize, rotate, crop, scale and crop, and desaturate.',
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'group' => 'Image',
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);
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}
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/**
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* Function to compare two colors by RGBa.
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*/
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function colorsAreEqual($color_a, $color_b) {
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// Fully transparent pixels are equal, regardless of RGB.
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if ($color_a[3] == 127 && $color_b[3] == 127) {
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return TRUE;
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}
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foreach ($color_a as $key => $value) {
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if ($color_b[$key] != $value) {
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return FALSE;
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}
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}
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return TRUE;
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}
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/**
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* Function for finding a pixel's RGBa values.
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*/
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function getPixelColor($image, $x, $y) {
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$color_index = imagecolorat($image->resource, $x, $y);
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$transparent_index = imagecolortransparent($image->resource);
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if ($color_index == $transparent_index) {
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return array(0, 0, 0, 127);
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}
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return array_values(imagecolorsforindex($image->resource, $color_index));
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}
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/**
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* Since PHP can't visually check that our images have been manipulated
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* properly, build a list of expected color values for each of the corners and
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* the expected height and widths for the final images.
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*/
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function testManipulations() {
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// If GD isn't available don't bother testing this.
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module_load_include('inc', 'system', 'image.gd');
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if (!function_exists('image_gd_check_settings') || !image_gd_check_settings()) {
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$this->pass(t('Image manipulations for the GD toolkit were skipped because the GD toolkit is not available.'));
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return;
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}
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// Typically the corner colors will be unchanged. These colors are in the
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// order of top-left, top-right, bottom-right, bottom-left.
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$default_corners = array($this->red, $this->green, $this->blue, $this->transparent);
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// A list of files that will be tested.
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$files = array(
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'image-test.png',
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'image-test.gif',
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'image-test-no-transparency.gif',
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'image-test.jpg',
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);
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// Setup a list of tests to perform on each type.
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$operations = array(
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'resize' => array(
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'function' => 'resize',
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'arguments' => array(20, 10),
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'width' => 20,
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'height' => 10,
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'corners' => $default_corners,
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),
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'scale_x' => array(
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'function' => 'scale',
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'arguments' => array(20, NULL),
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'width' => 20,
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'height' => 10,
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'corners' => $default_corners,
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),
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'scale_y' => array(
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'function' => 'scale',
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'arguments' => array(NULL, 10),
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'width' => 20,
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'height' => 10,
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'corners' => $default_corners,
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),
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'upscale_x' => array(
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'function' => 'scale',
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'arguments' => array(80, NULL, TRUE),
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'width' => 80,
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'height' => 40,
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'corners' => $default_corners,
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),
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'upscale_y' => array(
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'function' => 'scale',
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'arguments' => array(NULL, 40, TRUE),
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'width' => 80,
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'height' => 40,
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'corners' => $default_corners,
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),
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'crop' => array(
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'function' => 'crop',
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'arguments' => array(12, 4, 16, 12),
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'width' => 16,
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'height' => 12,
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'corners' => array_fill(0, 4, $this->white),
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),
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'scale_and_crop' => array(
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'function' => 'scale_and_crop',
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'arguments' => array(10, 8),
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'width' => 10,
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'height' => 8,
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'corners' => array_fill(0, 4, $this->black),
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),
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);
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// Systems using non-bundled GD2 don't have imagerotate. Test if available.
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if (function_exists('imagerotate')) {
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$operations += array(
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'rotate_90' => array(
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'function' => 'rotate',
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'arguments' => array(90, 0xFF00FF), // Fuchsia background.
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'width' => 20,
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'height' => 40,
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'corners' => array($this->fuchsia, $this->red, $this->green, $this->blue),
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),
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'rotate_transparent_90' => array(
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'function' => 'rotate',
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'arguments' => array(90),
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'width' => 20,
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'height' => 40,
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'corners' => array($this->transparent, $this->red, $this->green, $this->blue),
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),
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);
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// As of PHP version 5.5, GD uses a different algorithm to rotate images
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// than version 5.4 and below, resulting in different dimensions.
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// See https://bugs.php.net/bug.php?id=65148.
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// For the 40x20 test images, the dimensions resulting from rotation will
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// be 1 pixel smaller in both width and height in PHP 5.5 and above.
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// @todo: If and when the PHP bug gets solved, add an upper limit
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// version check.
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||
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if (version_compare(PHP_VERSION, '5.5', '>=')) {
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||
|
|
$operations += array(
|
||
|
|
'rotate_5' => array(
|
||
|
|
'function' => 'rotate',
|
||
|
|
'arguments' => array(5, 0xFF00FF), // Fuchsia background.
|
||
|
|
'width' => 41,
|
||
|
|
'height' => 23,
|
||
|
|
'corners' => array_fill(0, 4, $this->fuchsia),
|
||
|
|
),
|
||
|
|
'rotate_transparent_5' => array(
|
||
|
|
'function' => 'rotate',
|
||
|
|
'arguments' => array(5),
|
||
|
|
'width' => 41,
|
||
|
|
'height' => 23,
|
||
|
|
'corners' => array_fill(0, 4, $this->rotate_transparent),
|
||
|
|
),
|
||
|
|
);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$operations += array(
|
||
|
|
'rotate_5' => array(
|
||
|
|
'function' => 'rotate',
|
||
|
|
'arguments' => array(5, 0xFF00FF), // Fuchsia background.
|
||
|
|
'width' => 42,
|
||
|
|
'height' => 24,
|
||
|
|
'corners' => array_fill(0, 4, $this->fuchsia),
|
||
|
|
),
|
||
|
|
'rotate_transparent_5' => array(
|
||
|
|
'function' => 'rotate',
|
||
|
|
'arguments' => array(5),
|
||
|
|
'width' => 42,
|
||
|
|
'height' => 24,
|
||
|
|
'corners' => array_fill(0, 4, $this->rotate_transparent),
|
||
|
|
),
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Systems using non-bundled GD2 don't have imagefilter. Test if available.
|
||
|
|
if (function_exists('imagefilter')) {
|
||
|
|
$operations += array(
|
||
|
|
'desaturate' => array(
|
||
|
|
'function' => 'desaturate',
|
||
|
|
'arguments' => array(),
|
||
|
|
'height' => 20,
|
||
|
|
'width' => 40,
|
||
|
|
// Grayscale corners are a bit funky. Each of the corners are a shade of
|
||
|
|
// gray. The values of these were determined simply by looking at the
|
||
|
|
// final image to see what desaturated colors end up being.
|
||
|
|
'corners' => array(
|
||
|
|
array_fill(0, 3, 76) + array(3 => 0),
|
||
|
|
array_fill(0, 3, 149) + array(3 => 0),
|
||
|
|
array_fill(0, 3, 29) + array(3 => 0),
|
||
|
|
array_fill(0, 3, 225) + array(3 => 127)
|
||
|
|
),
|
||
|
|
),
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
foreach ($files as $file) {
|
||
|
|
foreach ($operations as $op => $values) {
|
||
|
|
// Load up a fresh image.
|
||
|
|
$image = image_load(drupal_get_path('module', 'simpletest') . '/files/' . $file, 'gd');
|
||
|
|
if (!$image) {
|
||
|
|
$this->fail(t('Could not load image %file.', array('%file' => $file)));
|
||
|
|
continue 2;
|
||
|
|
}
|
||
|
|
|
||
|
|
// All images should be converted to truecolor when loaded.
|
||
|
|
$image_truecolor = imageistruecolor($image->resource);
|
||
|
|
$this->assertTrue($image_truecolor, format_string('Image %file after load is a truecolor image.', array('%file' => $file)));
|
||
|
|
|
||
|
|
if ($image->info['extension'] == 'gif') {
|
||
|
|
if ($op == 'desaturate') {
|
||
|
|
// Transparent GIFs and the imagefilter function don't work together.
|
||
|
|
$values['corners'][3][3] = 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Perform our operation.
|
||
|
|
$function = 'image_' . $values['function'];
|
||
|
|
$arguments = array();
|
||
|
|
$arguments[] = &$image;
|
||
|
|
$arguments = array_merge($arguments, $values['arguments']);
|
||
|
|
call_user_func_array($function, $arguments);
|
||
|
|
|
||
|
|
// To keep from flooding the test with assert values, make a general
|
||
|
|
// value for whether each group of values fail.
|
||
|
|
$correct_dimensions_real = TRUE;
|
||
|
|
$correct_dimensions_object = TRUE;
|
||
|
|
$correct_colors = TRUE;
|
||
|
|
|
||
|
|
// Check the real dimensions of the image first.
|
||
|
|
if (imagesy($image->resource) != $values['height'] || imagesx($image->resource) != $values['width']) {
|
||
|
|
$correct_dimensions_real = FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Check that the image object has an accurate record of the dimensions.
|
||
|
|
if ($image->info['width'] != $values['width'] || $image->info['height'] != $values['height']) {
|
||
|
|
$correct_dimensions_object = FALSE;
|
||
|
|
}
|
||
|
|
// Now check each of the corners to ensure color correctness.
|
||
|
|
foreach ($values['corners'] as $key => $corner) {
|
||
|
|
// The test gif that does not have transparency has yellow where the
|
||
|
|
// others have transparent.
|
||
|
|
if ($file === 'image-test-no-transparency.gif' && $corner === $this->transparent) {
|
||
|
|
$corner = $this->yellow;
|
||
|
|
}
|
||
|
|
// Get the location of the corner.
|
||
|
|
switch ($key) {
|
||
|
|
case 0:
|
||
|
|
$x = 0;
|
||
|
|
$y = 0;
|
||
|
|
break;
|
||
|
|
case 1:
|
||
|
|
$x = $values['width'] - 1;
|
||
|
|
$y = 0;
|
||
|
|
break;
|
||
|
|
case 2:
|
||
|
|
$x = $values['width'] - 1;
|
||
|
|
$y = $values['height'] - 1;
|
||
|
|
break;
|
||
|
|
case 3:
|
||
|
|
$x = 0;
|
||
|
|
$y = $values['height'] - 1;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
$color = $this->getPixelColor($image, $x, $y);
|
||
|
|
$correct_colors = $this->colorsAreEqual($color, $corner);
|
||
|
|
}
|
||
|
|
|
||
|
|
$directory = file_default_scheme() . '://imagetests';
|
||
|
|
file_prepare_directory($directory, FILE_CREATE_DIRECTORY);
|
||
|
|
$file_path = $directory . '/' . $op . '.' . $image->info['extension'];
|
||
|
|
image_save($image, $file_path);
|
||
|
|
|
||
|
|
$this->assertTrue($correct_dimensions_real, format_string('Image %file after %action action has proper dimensions.', array('%file' => $file, '%action' => $op)));
|
||
|
|
$this->assertTrue($correct_dimensions_object, format_string('Image %file object after %action action is reporting the proper height and width values.', array('%file' => $file, '%action' => $op)));
|
||
|
|
// JPEG colors will always be messed up due to compression.
|
||
|
|
if ($image->info['extension'] != 'jpg') {
|
||
|
|
$this->assertTrue($correct_colors, format_string('Image %file object after %action action has the correct color placement.', array('%file' => $file, '%action' => $op)));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Check that saved image reloads without raising PHP errors.
|
||
|
|
$image_reloaded = image_load($file_path);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Tests loading an image whose transparent color index is out of range.
|
||
|
|
*/
|
||
|
|
function testTransparentColorOutOfRange() {
|
||
|
|
// This image was generated by taking an initial image with a palette size
|
||
|
|
// of 6 colors, and setting the transparent color index to 6 (one higher
|
||
|
|
// than the largest allowed index), as follows:
|
||
|
|
// @code
|
||
|
|
// $image = imagecreatefromgif('modules/simpletest/files/image-test.gif');
|
||
|
|
// imagecolortransparent($image, 6);
|
||
|
|
// imagegif($image, 'modules/simpletest/files/image-test-transparent-out-of-range.gif');
|
||
|
|
// @endcode
|
||
|
|
// This allows us to test that an image with an out-of-range color index
|
||
|
|
// can be loaded correctly.
|
||
|
|
$file = 'image-test-transparent-out-of-range.gif';
|
||
|
|
$image = image_load(drupal_get_path('module', 'simpletest') . '/files/' . $file);
|
||
|
|
|
||
|
|
if (!$image) {
|
||
|
|
$this->fail(format_string('Could not load image %file.', array('%file' => $file)));
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
// All images should be converted to truecolor when loaded.
|
||
|
|
$image_truecolor = imageistruecolor($image->resource);
|
||
|
|
$this->assertTrue($image_truecolor, format_string('Image %file after load is a truecolor image.', array('%file' => $file)));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Tests the file move function for managed files.
|
||
|
|
*/
|
||
|
|
class ImageFileMoveTest extends ImageToolkitTestCase {
|
||
|
|
public static function getInfo() {
|
||
|
|
return array(
|
||
|
|
'name' => 'Image moving',
|
||
|
|
'description' => 'Tests the file move function for managed files.',
|
||
|
|
'group' => 'Image',
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Tests moving a randomly generated image.
|
||
|
|
*/
|
||
|
|
function testNormal() {
|
||
|
|
// Pick a file for testing.
|
||
|
|
$file = current($this->drupalGetTestFiles('image'));
|
||
|
|
|
||
|
|
// Create derivative image.
|
||
|
|
$style = image_style_load(key(image_styles()));
|
||
|
|
$derivative_uri = image_style_path($style['name'], $file->uri);
|
||
|
|
image_style_create_derivative($style, $file->uri, $derivative_uri);
|
||
|
|
|
||
|
|
// Check if derivative image exists.
|
||
|
|
$this->assertTrue(file_exists($derivative_uri), 'Make sure derivative image is generated successfully.');
|
||
|
|
|
||
|
|
// Clone the object so we don't have to worry about the function changing
|
||
|
|
// our reference copy.
|
||
|
|
$desired_filepath = 'public://' . $this->randomName();
|
||
|
|
$result = file_move(clone $file, $desired_filepath, FILE_EXISTS_ERROR);
|
||
|
|
|
||
|
|
// Check if image has been moved.
|
||
|
|
$this->assertTrue(file_exists($result->uri), 'Make sure image is moved successfully.');
|
||
|
|
|
||
|
|
// Check if derivative image has been flushed.
|
||
|
|
$this->assertFalse(file_exists($derivative_uri), 'Make sure derivative image has been flushed.');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|