         instantiateVisualRecognition()
         loadImageFiles()
         lookupClassifier()
-        lookupCollection()
     }
     
     /** Instantiate Visual Recognition. */

        waitForExpectations()
        
        XCTFail("Training a classifier for the test suite. Try again in 10 seconds.")
    }
    
    /** Create a collection for the test suite. */
    func createCollectionWithFaceImages() {
        let description = "Create a collection for the test suite."
        let expectation = self.expectation(description: description)
        
        let failure = { (error: Error) in XCTFail("Could not create a collection for test suite.") }
        visualRecognition.createCollection(
            withName: collectionName,
            failure: failure) { collection in
                self.collectionID = collection.collectionID
                expectation.fulfill()
        }
        waitForExpectations()
        
        let description2 = "Add first image to collection."
        let expectation2 = self.expectation(description: description2)
        let failure2 = { (error: Error) in XCTFail("Could not add face1.jpg to collection.") }
        
        guard let collection = collectionID else {
            return
        }
        visualRecognition.addImageToCollection(withID: collection, imageFile: face1, failure: failure2) { images in
            self.imageFaceID = images.collectionImages[0].imageID
            expectation2.fulfill()
        }
        waitForExpectations()
        
        let description3 = "Add second image to collection."
        let expectation3 = self.expectation(description: description3)
        let failure3 = { (error: Error) in XCTFail("Could not add sign.jpg to collection.") }
        
        visualRecognition.addImageToCollection(withID: collection, imageFile: sign, failure: failure3) { images in
            expectation3.fulfill()
        }
        waitForExpectations()
    }
    
    /** Load file used when adding metadata to an image. */

        }
    }
    
    /** Train a classifier for the test suite. */
    func trainClassifier() {
        let description = "Train a classifier for the test suite."
