         }
     }
 
-    // MARK: - Positive Tests
+    // MARK: - Classifiers CRUD
 
     /** Retrieve a list of user-trained classifiers. */
     func testListClassifiers() {

            }
        }
    }

    /** Classify an image by URL using the default classifier and all default parameters. */
    func testClassifyByURL1() {

        waitForExpectations(timeout: 60)
    }

    // MARK: - Detect faces

    /** Detect faces by URL. */
    func testDetectFacesByURL() {
        let expectation = self.expectation(description: "Detect faces by URL.")
