/**
  * Test that GD::failedResample() returns true for the current image
  * manipulation only if it previously failed
  * @return void
  */
 public function testFailedResample()
 {
     $fullPath = realpath(dirname(__FILE__) . '/gdtest/nonimagedata.jpg');
     $fullPath2 = realpath(dirname(__FILE__) . '/gdtest/test_gif.gif');
     // Load invalid file
     $gd = new GDBackend();
     $gd->loadFrom($fullPath);
     // Cache should refre to this file
     $this->assertTrue($gd->failedResample($fullPath, filemtime($fullPath)));
     $this->assertFalse($gd->failedResample($fullPath2, filemtime($fullPath2)));
 }