     var dataLoader: MockDataLoader!
     var imageCache: MockImageCache!
     var dataCache: MockDataCache!
+    var observer: ImagePipelineObserver!
     var pipeline: ImagePipeline!
     var image: FetchImage!
 

        XCTAssertEqual(response.cacheType, .memory)
        XCTAssertNotNil(image.image)
    }
}

        XCTAssertNotNil(image.view)
    }

    func testIsLoadingUpdated() {
        // RECORD
        expect(image.$result.dropFirst()).toPublishSingleValue()
        let isLoading = record(image.$isLoading)
