public async Task GetArmingOffTimeAsync_Returns_IntegerAsync()
{
// Arrange
var miioDevice = new Mock <IMiioTransport>();
miioDevice.Setup(x => x.SendMessageAsync(It.IsAny <string>())).Returns(Task.FromResult("{\"result\":[30],\"id\":1}"));
var miioGateway = new MiioGateway(miioDevice.Object);
// Act
var armingOffTime = await miioGateway.GetArmingOffTimeAsync();
// Assert
miioDevice.Verify(x => x.SendMessageAsync("{\"id\": 1, \"method\": \"get_device_prop\", \"params\": [\"lumi.0\",\"alarm_time_len\"]}"), Times.Once());
Assert.Equal(30, armingOffTime);
}