// Given
let viewModel = MockUpSampleViewModel()
let sampleViewController = SampleViewController(viewModel: viewModel)

// When
_ = sampleViewController.view
viewModel.isOn.value = false
let expectation = self.expectation(description: "testSwitchOff")
DispatchQueue.main.asyncAfter(deadline: .now() + .milliseconds(500)) {
    expectation.fulfill()
}

// Then
waitForExpectations(timeout: 1)
XCTAssert(sampleViewController.switch.isOn == false)