public async Task PlayRadioAsync_Should_Not_Throw_ExceptionsAsync() { // Arrange var miioDevice = new Mock <IMiioTransport>(); var miioGateway = new MiioGateway(miioDevice.Object); miioDevice.Setup(x => x.SendMessageAsync(It.Is <string>(s => s.Contains("get_channels")))) .Returns(Task.FromResult("{\"result\":{\"chs\":[" + "{\"id\":1025,\"type\":0,\"url\":\"http://192.168.1.1/radio1.m3u8\"}," + "{\"id\":1026,\"type\":0,\"url\":\"http://192.168.1.1/radio2.m3u8\"}," + "{\"id\":1027,\"type\":0,\"url\":\"http://192.168.1.1/radio3.m3u8\"}," + "]}}")); miioDevice.Setup(x => x.SendMessageAsync(It.Is <string>(s => s.Contains("play_specify_fm")))) .Returns(Task.FromResult("{\"result\":[\"ok\"],\"id\":2}")); // Act await miioGateway.PlayRadioAsync(1025, 50); // Assert var msg = "{\"id\": 2, \"method\": \"play_specify_fm\", \"params\": [1025,50]}"; miioDevice.Verify(x => x.SendMessageAsync(msg), Times.Once()); }