public async Task GivenANullMessageThenAnArgumentNullExceptionIsThrownAsync()
{
var bus = new TestableBus(false);
Message?message = default;
ArgumentNullException?exception = await Assert.ThrowsAsync <ArgumentNullException>(
() => bus.InvokeAsync(message !));
Assert.Equal(nameof(message), exception.ParamName);
}
public async Task GivenAMessageThenMessageInvokingIsRaisedAfterTheInvokeIsPerformedAsync()
{
var bus = new TestableBus(false);
var message = new SerializableMessage();
bool wasInvoked = false;
bus.Invoked += (_, _) => Task.FromResult(wasInvoked = true);
await bus.InvokeAsync(message);
Assert.True(wasInvoked);
}
public async Task GivenAMessageThenMessageInvokingIsRaisedBeforeTheInvokeIsPerformedAsync()
{
var bus = new TestableBus(true);
var message = new SerializableMessage();
bool wasInvoked = false;
bus.Invoking += (_, _) => Task.FromResult(wasInvoked = true);
_ = await Assert.ThrowsAsync <InvalidOperationException>(
() => bus.InvokeAsync(message));
Assert.True(wasInvoked);
}
public async Task GivenANullMessageThenNoEventsAreRaisedAsync()
{
var bus = new TestableBus(false);
Message?message = default;
bool wasInvoked = false;
bus.Invoking += (_, _) => Task.FromResult(wasInvoked = true);
bus.Invoked += (_, _) => Task.FromResult(wasInvoked = true);
_ = await Assert.ThrowsAsync <ArgumentNullException>(
() => bus.InvokeAsync(message !));
Assert.False(wasInvoked);
}