Workaround pour Imagick 6.5

library/Class/AlbumRessource.php

@@ -222,7 +222,7 @@ class Class_AlbumRessource extends Storm_Model_Abstract {
 				$this->_image = new Imagick($this->getOriginalPath());
 			} catch (Exception $e) {
 				$this->_image = new Imagick();
-				$this->_image->newPseudoImage(50, 50, "canvas:black");
+				$this->_image->newPseudoImage(50, 50, "gradient:black-black");
 				$this->_image->setImageFormat('jpg');
 			}
 		}

tests/library/Class/AlbumRessourceTest.php

@@ -122,7 +122,7 @@ class AlbumRessourceInitializationTest extends AlbumRessourceFileUploadTestCase
 	/** @test */
 	public function getImageWithInexistingPathShouldCreateBlackImage() {
 		$black_image = new Imagick();
-		$black_image->newPseudoImage(50, 50, "canvas:black");
+		$black_image->newPseudoImage(50, 50, "gradient:black-black");
 		$black_image->setImageFormat('jpg');
 		$this->assertEquals($black_image->getImageBlob(), $this->_resource->getImage());
 	}