public void It_should_capture_messages_after_start()
{
var messages = new[]
{
new TestMessage("123"),
new TestMessage("456"),
new TestMessage("789")
};
_source.Publish(new TestMessage("000"));
using var listener = MessageListener.Start(_source);
foreach (var msg in messages)
{
_source.Publish(msg);
}
Assert.That(listener.GetMessages <TestMessage>(), Is.EquivalentTo(messages));
}
public async Task EnsureReceived_returns_latest_message_matching_criteria_if_it_has_been_already_received()
{
using var listener = MessageListener.Start(_source);
_source.Publish(new TestMessage("001")
{
Text = "foo"
});
_source.Publish(new TestMessage("002")
{
Text = "bar"
});
var msg3 = _source.Publish(new TestMessage("003")
{
Text = "foo"
});
var actual = await listener.EnsureReceived <TestMessage>(x => x.Text == "foo");
Assert.That(actual, Is.SameAs(msg3));
}
public void GetMessages_Of_Object_should_return_all_received_messages()
{
var msg1 = 55;
var msg2 = "string";
var msg3 = new TestMessage("000");
using var listener = MessageListener.Start(_source);
_source.Publish(msg1);
_source.Publish(msg2);
_source.Publish(msg3);
Assert.That(listener.GetMessages <object>(), Is.EquivalentTo(new object[] { msg1, msg2, msg3 }));
}
public async Task EnsureReceivedMany_returns_specified_amount_of_messages_matching_criteria_in_order_from_latest_to_oldest()
{
using var listener = MessageListener.Start(_source);
var msg1 = _source.Publish(new TestMessage("001")
{
Text = "foo"
});
_source.Publish(new TestMessage("002")
{
Text = "bar"
});
var msg3 = _source.Publish(new TestMessage("003")
{
Text = "foo"
});
var receiveTask = listener.EnsureReceivedMany <TestMessage>(4, x => x.Text == "foo");
var msg4 = _source.Publish(new TestMessage("004")
{
Text = "foo"
});
var msg5 = _source.Publish(new TestMessage("005")
{
Text = "foo"
});
_source.Publish(new TestMessage("006")
{
Text = "foo"
});
var actual = await receiveTask;
Assert.That(actual, Is.EqualTo(new[] { msg5, msg4, msg3, msg1 }));
}