    func testSlider() {
        
        let expectation = XCTestExpectation()
        let view = SliderTestView(spy: {
            expectation.fulfill()
        })
        TestUtils.present(view: view)
        wait(for: [expectation], timeout: 1)
    }
    
    func testStepper() {
        
        let expectation = XCTestExpectation()
        let view = StepperTestView(spy: {