public void MessagesModel_ReceivesMessagesFromLoggerEvents()
{
// Arrange
var loggerEvents = new MockLoggerEvents();
var model = new MessagesModel(null, loggerEvents);
// Act
loggerEvents.RaiseLogged(new[] { "Foo", "Bar" });
// Assert
Assert.AreEqual(2, model.Messages.Count);
}
public void MessagesModel_LoggerEventsLoggedRaisesOneListChangedEvent()
{
// Arrange
var loggerEvents = new MockLoggerEvents();
var model = new MessagesModel(null, loggerEvents);
int listChanged = 0;
model.Messages.ListChanged += (s, e) => listChanged++;
// Act
loggerEvents.RaiseLogged(new[] { "Foo", "Bar" });
// Assert
Assert.AreEqual(1, listChanged);
}
public void MessagesModel_HoldsMaximumCapacityOfMessages()
{
// Arrange
var loggerEvents = new MockLoggerEvents();
var model = new MessagesModel(null, loggerEvents);
int numberOfMessages = MessagesModel.MaxMessageCapacity + 1;
var messages = Enumerable.Range(0, numberOfMessages)
.Select(x => "Foo")
.ToList();
// Act
loggerEvents.RaiseLogged(messages);
// Assert
Assert.AreNotEqual(numberOfMessages, model.Messages.Count);
Assert.AreEqual(MessagesModel.MaxMessageCapacity, model.Messages.Count);
}
public void MessagesModel_ReplacesMessages()
{
// Arrange
var loggerEvents = new MockLoggerEvents();
var model = new MessagesModel(null, loggerEvents);
int numberOfMessages = MessagesModel.MaxMessageCapacity / 2;
for (int i = 0; i < 4; i++)
{
var messages = Enumerable.Range(0, numberOfMessages)
.Select(x => $"Foo{i}")
.ToList();
// Act
loggerEvents.RaiseLogged(messages);
}
// Assert
IEnumerable <string> expected = Enumerable.Range(0, numberOfMessages)
.Select(x => "Foo2")
.Concat(Enumerable.Range(0, numberOfMessages)
.Select(x => "Foo3"));
CollectionAssert.AreEqual(expected, model.Messages);
}
