public void ReturnFalse_GivenEmptyQueue()
{
var automatedMessagingSystem = new AutomatedMessagingSystem();
bool result = automatedMessagingSystem.DequeueMessage(out string myMessage);
Assert.False(result);
}
public void AddNoMessagesToQueue_GivenNoAutomatedMessages()
{
var automatedMessagingSystem = new AutomatedMessagingSystem();
automatedMessagingSystem.CheckMessages(DateTime.Now);
Assert.Empty(automatedMessagingSystem.QueuedMessages);
}
public void AddAutomatedMessageToManagedMessages()
{
var messagingSystem = new AutomatedMessagingSystem();
var automatedMessage = new IntervalTriggeredMessage(1, "Welcome! If you are enjoying the content, please follow DevChatter for more!");
messagingSystem.Publish(automatedMessage);
Assert.Contains(automatedMessage, messagingSystem.ManagedMessages);
}
public void AddOneMessagesToQueue_GivenOneReadyAutomatedMessage()
{
var automatedMessagingSystem = new AutomatedMessagingSystem();
automatedMessagingSystem.Publish(new AlwaysReadyMessage());
automatedMessagingSystem.CheckMessages(DateTime.Now);
Assert.Single(automatedMessagingSystem.QueuedMessages);
}
public void AddOneMessagesToQueue_GivenManyMessages_OnlyOneReady()
{
var automatedMessagingSystem = new AutomatedMessagingSystem();
automatedMessagingSystem.Publish(new NeverReadyMessage());
automatedMessagingSystem.Publish(new AlwaysReadyMessage());
automatedMessagingSystem.Publish(new NeverReadyMessage());
automatedMessagingSystem.CheckMessages();
Assert.Single(automatedMessagingSystem.QueuedMessages);
}
public void ReturnTrueAndProvideMessage_GivenSingleQueuedMessage()
{
var automatedMessagingSystem = new AutomatedMessagingSystem();
var message = new AlwaysReadyMessage();
automatedMessagingSystem.Publish(message);
automatedMessagingSystem.CheckMessages();
bool result = automatedMessagingSystem.DequeueMessage(out string myMessage);
Assert.True(result);
Assert.Equal(message.GetMessageInstance(), myMessage);
}
public void AddAutomatedMessageToManagedMessages()
{
var messagingSystem = new AutomatedMessagingSystem();
var intervalTriggeredMessage = new IntervalTriggeredMessage
{
DelayInMinutes = 1,
Message = "Welcome! If you are enjoying the content, please follow for more!"
};
messagingSystem.Publish(intervalTriggeredMessage);
Assert.Contains(intervalTriggeredMessage, messagingSystem.ManagedAutomatedMessages);
}
public void ReturnOnlyOneMessage_GivenSingleQueuedMessage()
{
var automatedMessagingSystem = new AutomatedMessagingSystem();
var message = new AlwaysReadyMessage();
automatedMessagingSystem.Publish(message);
automatedMessagingSystem.CheckMessages();
automatedMessagingSystem.DequeueMessage(out string myMessage);
bool result = automatedMessagingSystem.DequeueMessage(out string throwawayMessage);
Assert.False(result);
Assert.Equal(message.GetMessageInstance(), myMessage);
Assert.Null(throwawayMessage);
}
