public void When_subject_throws_the_expected_exact_exception_it_should_succeed()
{
//-----------------------------------------------------------------------------------------------------------
// Arrange
//-----------------------------------------------------------------------------------------------------------
var asyncObject = new AsyncClass();
//-----------------------------------------------------------------------------------------------------------
// Act / Assert
//-----------------------------------------------------------------------------------------------------------
asyncObject
.Awaiting(x => x.ThrowAsync <ArgumentNullException>())
.Should().ThrowExactly <ArgumentNullException>();
}
public void When_subject_throws_subclass_of_expected_exact_exception_it_should_fail()
{
// Arrange
var asyncObject = new AsyncClass();
// Act
Action action = () => asyncObject
.Awaiting(x => x.ThrowAsync <ArgumentNullException>())
.Should().ThrowExactly <ArgumentException>("because {0} should do that", "IFoo.Do");
// Assert
action.Should().Throw <XunitException>()
.WithMessage("Expected type to be System.ArgumentException because IFoo.Do should do that, but found System.ArgumentNullException.");
}
public async Task When_async_method_throws_exception_through_ValueTask_and_no_exception_was_expected_it_should_fail()
{
// Arrange
var asyncObject = new AsyncClass();
// Act
Func <Task> action = () => asyncObject
.Awaiting(x => x.ThrowAsyncValueTask <ArgumentException>())
.Should().NotThrowAsync();
// Assert
await action.Should().ThrowAsync <XunitException>()
.WithMessage("Did not expect any exception, but found System.ArgumentException*");
}
public async Task When_ValueTask_async_method_of_T_throws_exception_expected_not_to_be_thrown_it_should_fail()
{
// Arrange
var asyncObject = new AsyncClass();
// Act
Func <Task> action = () => asyncObject
.Awaiting(x => x.ThrowValueTaskIntAsync <ArgumentException>(true))
.Should().NotThrowAsync <ArgumentException>();
// Assert
await action.Should().ThrowAsync <XunitException>()
.WithMessage("Did not expect System.ArgumentException, but found System.ArgumentException*");
}
public async Task When_async_method_throws_unexpected_exception_through_ValueTask_it_should_fail()
{
// Arrange
var asyncObject = new AsyncClass();
// Act
Func <Task> action = () => asyncObject
.Awaiting(x => x.ThrowAsyncValueTask <ArgumentException>())
.Should().ThrowAsync <InvalidOperationException>("because {0} should do that", "IFoo.Do");
// Assert
await action.Should().ThrowAsync <XunitException>()
.WithMessage("Expected a <System.InvalidOperationException> to be thrown because IFoo.Do should do that, but found <System.ArgumentException>*");
}
public async Task When_async_method_does_not_throw_expected_exception_it_should_fail()
{
// Arrange
var asyncObject = new AsyncClass();
// Act
Func <Task> action = () => asyncObject
.Awaiting(x => x.SucceedAsync())
.Should().ThrowAsync <InvalidOperationException>("because {0} should do that", "IFoo.Do");
// Assert
await action.Should().ThrowAsync <XunitException>()
.WithMessage("Expected a <System.InvalidOperationException> to be thrown because IFoo.Do should do that, but no exception was thrown.");
}
public async Task When_subject_throws_aggregate_exception_and_not_expected_exact_exception_through_ValueTask_it_should_fail()
{
// Arrange
var asyncObject = new AsyncClass();
// Act
Func <Task> action = () => asyncObject
.Awaiting(x => x.ThrowAggregateExceptionAsyncValueTask <ArgumentException>())
.Should().ThrowExactlyAsync <ArgumentException>("because {0} should do that", "IFoo.Do");
// Assert
await action.Should().ThrowAsync <XunitException>()
.WithMessage("Expected type to be System.ArgumentException because IFoo.Do should do that, but found System.AggregateException.");
}
public void When_async_method_throws_exception_expected_not_to_be_thrown_it_should_fail()
{
// Arrange
var asyncObject = new AsyncClass();
// Act
Action action = () => asyncObject
.Awaiting(x => x.ThrowAsync <ArgumentException>())
.Should().NotThrow <ArgumentException>();
// Assert
action.Should().Throw <XunitException>()
.WithMessage("Did not expect System.ArgumentException, but found*");
}
public async Task When_poll_interval_is_zero_for_async_func_executed_with_wait_it_should_not_throw()
{
// Arrange
var waitTime = 10.Milliseconds();
var pollInterval = 0.Milliseconds();
var clock = new FakeClock();
var asyncObject = new AsyncClass();
Func <Task> someFunc = () => asyncObject.SucceedAsync();
// Act
Func <Task> act = () => someFunc.Should(clock).NotThrowAfterAsync(waitTime, pollInterval);
// Assert
await act.Should().NotThrowAsync();
}
public async Task When_poll_interval_is_negative_and_expecting_to_not_throw_async_it_should_throw()
{
// Arrange
var waitTime = 10.Milliseconds();
var pollInterval = -1.Milliseconds();
var asyncObject = new AsyncClass();
Func <Task <int> > someFunc = () => asyncObject.ReturnTaskInt();
// Act
Func <Task> act = () => someFunc.Should().NotThrowAfterAsync(waitTime, pollInterval);
// Assert
await act.Should().ThrowAsync <ArgumentOutOfRangeException>()
.WithMessage("* value of pollInterval must be non-negative*");
}
public void When_poll_interval_is_negative_for_async_func_executed_with_wait_it_should_throw()
{
// Arrange
var waitTime = 10.Milliseconds();
var pollInterval = -1.Milliseconds();
var asyncObject = new AsyncClass();
Func <Task> someFunc = () => asyncObject.SucceedAsync();
// Act
Action act = () => someFunc.Should().NotThrowAfter(waitTime, pollInterval);
// Assert
act.Should().Throw <ArgumentOutOfRangeException>()
.WithMessage("* value of pollInterval must be non-negative*");
}
public async Task When_wait_time_is_negative_for_async_func_it_should_throw()
{
// Arrange
var waitTime = -1.Milliseconds();
var pollInterval = 10.Milliseconds();
var asyncObject = new AsyncClass();
Func <Task> someFunc = () => asyncObject.SucceedAsync();
// Act
Func <Task> act = () => someFunc.Should().NotThrowAfterAsync(waitTime, pollInterval);
// Assert
await act.Should().ThrowAsync <ArgumentOutOfRangeException>()
.WithMessage("* value of waitTime must be non-negative*");
}
public async Task When_async_method_throws_exception_and_expected_not_to_throw_async_another_one_it_should_succeed()
{
//-----------------------------------------------------------------------------------------------------------
// Arrange
//-----------------------------------------------------------------------------------------------------------
var asyncObject = new AsyncClass();
//-----------------------------------------------------------------------------------------------------------
// Act
//-----------------------------------------------------------------------------------------------------------
Func <Task> action = async() => await asyncObject.ThrowAsync <ArgumentException>();
//-----------------------------------------------------------------------------------------------------------
// Assert
//-----------------------------------------------------------------------------------------------------------
await action.Should().NotThrowAsync <InvalidOperationException>();
}
public async void When_async_method_throws_async_expected_exception_it_should_succeed()
{
//-----------------------------------------------------------------------------------------------------------
// Arrange
//-----------------------------------------------------------------------------------------------------------
var asyncObject = new AsyncClass();
//-----------------------------------------------------------------------------------------------------------
// Act
//-----------------------------------------------------------------------------------------------------------
Func <Task> action = async() => await asyncObject.ThrowAsync <ArgumentException>();
//-----------------------------------------------------------------------------------------------------------
// Assert
//-----------------------------------------------------------------------------------------------------------
await action.Should().ThrowAsync <ArgumentException>();
}
public async Task When_subject_throws_expected_async_exact_exception_it_should_succeed()
{
//-----------------------------------------------------------------------------------------------------------
// Arrange
//-----------------------------------------------------------------------------------------------------------
var asyncObject = new AsyncClass();
//-----------------------------------------------------------------------------------------------------------
// Act
//-----------------------------------------------------------------------------------------------------------
Func <Task> action = async() => await asyncObject.ThrowAsync <ArgumentException>();
//-----------------------------------------------------------------------------------------------------------
// Assert
//-----------------------------------------------------------------------------------------------------------
await action.Should().ThrowExactlyAsync <ArgumentException>("because {0} should do that", "IFoo.Do");
}
public async Task When_async_method_does_not_throw_async_exception_and_that_was_expected_it_should_succeed()
{
//-----------------------------------------------------------------------------------------------------------
// Arrange
//-----------------------------------------------------------------------------------------------------------
var asyncObject = new AsyncClass();
//-----------------------------------------------------------------------------------------------------------
// Act
//-----------------------------------------------------------------------------------------------------------
Func <Task> action = async() => await asyncObject.SucceedAsync();
//-----------------------------------------------------------------------------------------------------------
// Assert
//-----------------------------------------------------------------------------------------------------------
await action.Should().NotThrowAsync();
}
public void When_asserting_async_void_method_should_not_throw_specific_exception_it_should_fail()
{
//-----------------------------------------------------------------------------------------------------------
// Arrange
//-----------------------------------------------------------------------------------------------------------
var asyncObject = new AsyncClass();
Action asyncVoidMethod = async() => await asyncObject.IncompleteTask();
//-----------------------------------------------------------------------------------------------------------
// Act
//-----------------------------------------------------------------------------------------------------------
Action action = () => asyncVoidMethod.Should().NotThrow <ArgumentException>();
//-----------------------------------------------------------------------------------------------------------
// Assert
//-----------------------------------------------------------------------------------------------------------
action.Should().Throw <InvalidOperationException>("*async*void*");
}
public void When_async_method_throws_expected_exception_it_should_succeed()
{
//-----------------------------------------------------------------------------------------------------------
// Arrange
//-----------------------------------------------------------------------------------------------------------
var asyncObject = new AsyncClass();
//-----------------------------------------------------------------------------------------------------------
// Act
//-----------------------------------------------------------------------------------------------------------
Action action = () => asyncObject
.Awaiting(x => x.ThrowAsync <ArgumentException>())
.Should().Throw <ArgumentException>();
//-----------------------------------------------------------------------------------------------------------
// Assert
//-----------------------------------------------------------------------------------------------------------
action.Should().NotThrow();
}
public void When_async_method_succeeds_and_expected_not_to_throw_particular_exception_it_should_succeed()
{
//-----------------------------------------------------------------------------------------------------------
// Arrange
//-----------------------------------------------------------------------------------------------------------
var asyncObject = new AsyncClass();
//-----------------------------------------------------------------------------------------------------------
// Act
//-----------------------------------------------------------------------------------------------------------
Action action = () => asyncObject
.Awaiting(x => asyncObject.SucceedAsync())
.Should().NotThrow <InvalidOperationException>();
//-----------------------------------------------------------------------------------------------------------
// Assert
//-----------------------------------------------------------------------------------------------------------
action.Should().NotThrow();
}
public async Task When_subject_throws_subclass_of_expected_async_exact_exception_it_should_throw()
{
//-----------------------------------------------------------------------------------------------------------
// Arrange
//-----------------------------------------------------------------------------------------------------------
var asyncObject = new AsyncClass();
//-----------------------------------------------------------------------------------------------------------
// Act
//-----------------------------------------------------------------------------------------------------------
Func <Task> action = async() => await asyncObject.ThrowAsync <ArgumentNullException>();
Func <Task> testAction = async() => await action.Should().ThrowExactlyAsync <ArgumentException>("ABCDE");
//-----------------------------------------------------------------------------------------------------------
// Assert
//-----------------------------------------------------------------------------------------------------------
(await testAction.Should().ThrowAsync <XunitException>()).WithMessage("*ArgumentException*ABCDE*ArgumentNullException*");
}
public void When_async_method_does_not_throw_exception_and_that_was_expected_it_should_succeed()
{
//-----------------------------------------------------------------------------------------------------------
// Arrange
//-----------------------------------------------------------------------------------------------------------
var asyncObject = new AsyncClass();
//-----------------------------------------------------------------------------------------------------------
// Act
//-----------------------------------------------------------------------------------------------------------
Action action = () => asyncObject
.Awaiting(x => x.SucceedAsync())
.Should().NotThrow();
//-----------------------------------------------------------------------------------------------------------
// Assert
//-----------------------------------------------------------------------------------------------------------
action.Should().NotThrow();
}
public void When_async_method_does_not_throw_expected_exception_it_should_fail()
{
//-----------------------------------------------------------------------------------------------------------
// Arrange
//-----------------------------------------------------------------------------------------------------------
var asyncObject = new AsyncClass();
//-----------------------------------------------------------------------------------------------------------
// Act
//-----------------------------------------------------------------------------------------------------------
Action action = () => asyncObject
.Awaiting(x => x.SucceedAsync())
.Should().Throw <InvalidOperationException>("because {0} should do that", "IFoo.Do");
//-----------------------------------------------------------------------------------------------------------
// Assert
//-----------------------------------------------------------------------------------------------------------
action.Should().Throw <XunitException>()
.WithMessage("Expected System.InvalidOperationException because IFoo.Do should do that, but no exception was thrown*");
}
public void When_async_method_throws_exception_and_no_exception_was_expected_it_should_fail()
{
//-----------------------------------------------------------------------------------------------------------
// Arrange
//-----------------------------------------------------------------------------------------------------------
var asyncObject = new AsyncClass();
//-----------------------------------------------------------------------------------------------------------
// Act
//-----------------------------------------------------------------------------------------------------------
Action action = () => asyncObject
.Awaiting(x => x.ThrowAsync <ArgumentException>())
.Should().NotThrow();
//-----------------------------------------------------------------------------------------------------------
// Assert
//-----------------------------------------------------------------------------------------------------------
action.Should().Throw <XunitException>()
.WithMessage("Did not expect any exception, but found a System.ArgumentException*");
}