     }
 
     func testCachingImageOnDiskCallsCompletionHandlerWithSuccess() {
-        let key = "TestCachingData"
+        let key = "TestCachingImage"
         let image = testImageWithName("Square", fileExtension: .PNG)
 
         let completionExpectation = expectationWithDescription("completionHandler called")

    }
    
    func testCachingImageOnlyInMemoryCallsCompletionHandlerWithSuccess() {
        let key = "TestCachingData"
        let image = testImageWithName("Square", fileExtension: .PNG)
        
        let completionExpectation = expectationWithDescription("completionHandler called")

    }
    
    func testCachingImageOnDiskCreatesFileInDiskCachePath() {
        let key = "TestCachingImage"
        let image = testImageWithName("Square", fileExtension: .PNG)
        
        let completionExpectation = expectationWithDescription("completionHandler called")
