public async Task EmitThePowerReadingWhenAMessageIsReceivedOnThe(
string powerReadingPayloadRegex,
IEnumerable <Recorded <Notification <string> > > source,
IEnumerable <Recorded <Notification <double> > > expected)
{
const string topic = "powerReadings";
var scheduler = new TestScheduler();
var config = new PowerFull.Messaging.Config
{
PowerReadingTopic = topic,
PowerReadingPayloadValueRegex = powerReadingPayloadRegex
};
(var messages, var mqttClient, var subject) = await CreateSubject(config : config, devices : new[] { DeviceA, DeviceB });
scheduler.CreateColdObservable(source.ToArray())
.Select(payload => new MqttApplicationMessage(topic, payload == null ? null : Encoding.UTF8.GetBytes(payload)))
.Subscribe(messages);
var lastMessage = source.Select(notification => TimeSpan.FromTicks(notification.Time)).Max();
var actual = scheduler.Start(() => subject.RealPower, lastMessage);
actual.Messages.AssertEqual(expected);
}
public async Task SubscribeToExpectedTopics()
{
var config = new PowerFull.Messaging.Config
{
PowerReadingTopic = "TestPowerReadingTopic"
};
(var messages, var mqttClient, var subject) = await CreateSubject(config : config, devices : new[] { DeviceA, DeviceB });
A.CallTo(() => mqttClient.SubscribeAsync("PowerStateRequestTopicA", MqttQualityOfService.AtLeastOnce)).MustHaveHappenedOnceExactly();
A.CallTo(() => mqttClient.SubscribeAsync("PowerStateResponseTopicA", MqttQualityOfService.AtLeastOnce)).MustHaveHappenedOnceExactly();
A.CallTo(() => mqttClient.SubscribeAsync("PowerOnRequestTopicA", MqttQualityOfService.AtLeastOnce)).MustHaveHappenedOnceExactly();
A.CallTo(() => mqttClient.SubscribeAsync("PowerOffRequestTopicA", MqttQualityOfService.AtLeastOnce)).MustHaveHappenedOnceExactly();
A.CallTo(() => mqttClient.SubscribeAsync("PowerStateRequestTopicB", MqttQualityOfService.AtLeastOnce)).MustHaveHappenedOnceExactly();
A.CallTo(() => mqttClient.SubscribeAsync("PowerStateResponseTopicB", MqttQualityOfService.AtLeastOnce)).MustHaveHappenedOnceExactly();
A.CallTo(() => mqttClient.SubscribeAsync("PowerOnRequestTopicB", MqttQualityOfService.AtLeastOnce)).MustHaveHappenedOnceExactly();
A.CallTo(() => mqttClient.SubscribeAsync("PowerOffRequestTopicB", MqttQualityOfService.AtLeastOnce)).MustHaveHappenedOnceExactly();
A.CallTo(() => mqttClient.SubscribeAsync("TestPowerReadingTopic", MqttQualityOfService.AtLeastOnce)).MustHaveHappenedOnceExactly();
}
private static async Task <(Subject <MqttApplicationMessage>, IMqttClient, PowerFull.Messaging.Facade.Implementation)> CreateSubject(PowerFull.Messaging.Config config = null, IEnumerable <IDevice> devices = null)
{
config = config ?? new PowerFull.Messaging.Config();
var messages = new Subject <MqttApplicationMessage>();
var mqttClient = A.Fake <IMqttClient>();
A.CallTo(() => mqttClient.MessageStream).Returns(messages);
var mqttFactory = A.Fake <PowerFull.Messaging.Mqtt.IFactory>();
A.CallTo(() => mqttFactory.Create()).Returns(new ValueTask <IMqttClient>(mqttClient));
var logger = A.Fake <ILogger <PowerFull.Messaging.IFacade> >();
var subject = new PowerFull.Messaging.Facade.Implementation(config, mqttFactory, devices, logger);
await subject.InitializeAsync();
return(messages, mqttClient, subject);
}