public function testIsStoredChecksObjectExistence() { $s3 = $this->createAmazonS3Mock(); $s3->expects($this->once())->method('if_object_exists')->will($this->returnValue(false)); $resolver = new AmazonS3Resolver($s3, 'images.example.com'); $this->assertFalse($resolver->isStored('/some-folder/path.jpg', 'thumb')); }