public async Task SetArmingBlinkingTimeAsync_Should_Not_Throw_ExceptionsAsync() { // Arrange var miioDevice = new Mock <IMiioTransport>(); miioDevice.Setup(x => x.SendMessageAsync(It.IsAny <string>())).Returns(Task.FromResult("{\"result\":[\"ok\"],\"id\":1}")); var miioGateway = new MiioGateway(miioDevice.Object); // Act await miioGateway.SetArmingBlinkingTimeAsync(45); // Assert miioDevice.Verify(x => x.SendMessageAsync("{\"id\": 1, \"method\": \"set_device_prop\", \"params\": {\"sid\":\"lumi.0\", \"en_alarm_light\":45}}"), Times.Once()); }