public async Task When_subject_throws_aggregate_exception_instead_of_exact_exception_it_should_throw()
{
// Arrange
var asyncObject = new AsyncClass();
// Act
Func <Task> action = () => asyncObject.ThrowAggregateExceptionAsync <ArgumentException>();
Func <Task> testAction = () => action.Should().ThrowExactlyAsync <ArgumentException>("ABCDE");
// Assert
await testAction.Should().ThrowAsync <XunitException>()
.WithMessage("*ArgumentException*ABCDE*AggregateException*");
}