silverstripe-framework/tests/model/GDImageTest.php

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<?php
class GDImageTest extends ImageTest {
public function setUp() {
if(!extension_loaded("gd")) {
$this->markTestSkipped("The GD extension is required");
$this->skipTest = true;
parent::setUp();
return;
}
parent::setUp();
Image::set_backend("GDBackend");
// Create a test files for each of the fixture references
$fileIDs = $this->allFixtureIDs('Image');
foreach($fileIDs as $fileID) {
$file = DataObject::get_by_id('Image', $fileID);
$image = imagecreatetruecolor(300,300);
imagepng($image, BASE_PATH."/{$file->Filename}");
imagedestroy($image);
$file->write();
}
}
public function tearDown() {
$cache = SS_Cache::factory('GDBackend_Manipulations');
$cache->clean(Zend_Cache::CLEANING_MODE_ALL);
parent::tearDown();
}
/**
* Test that the cache of manipulation failures is cleared when deleting
* the image object
* @return void
*/
public function testCacheCleaningOnDelete() {
$image = $this->objFromFixture('Image', 'imageWithTitle');
$cache = SS_Cache::factory('GDBackend_Manipulations');
$fullPath = $image->getFullPath();
$key = md5(implode('_', array($fullPath, filemtime($fullPath))));
try {
// Simluate a failed manipulation
$gdFailure = new GDBackend_Failure($fullPath, array('SetWidth', 123));
$this->fail('GDBackend_Failure should throw an exception when setting image resource');
} catch (GDBackend_Failure_Exception $e) {
// Check that the cache has stored the manipulation failure
$data = unserialize($cache->load($key));
$this->assertArrayHasKey('SetWidth|123', $data);
$this->assertTrue($data['SetWidth|123']);
// Delete the image object
$image->delete();
// Check that the cache has been removed
$data = unserialize($cache->load($key));
$this->assertFalse($data);
}
}
}