public void Exceptions_in_enumerations_assertions()
{
SomeType someObject = new SomeType();
Func <IEnumerable <string> > functionThatThrows = () => someObject.SomeEnumerableThrowingMethod();
functionThatThrows.Enumerating().ShouldThrow <Exception>();
}
public void Exceptions_in_async_code_assertions()
{
SomeType someObject = new SomeType();
Func <Task> asyncFunctionThatThrows = async() => { await someObject.SomeAsyncMethodThatThrows(null); };
Func <Task> asyncFunctionThatDoesNotThrows = async() => { await someObject.SomeAsyncMethod(); };
asyncFunctionThatThrows.ShouldThrow <ArgumentException>();
asyncFunctionThatDoesNotThrows.ShouldNotThrow();
}
public void Exception_not_occuring_assertions()
{
SomeType someObject = new SomeType();
Action action = () => someObject.SomeMethod();
Action actionThatThrows = () => someObject.SomeMethodThatThrows(null);
action.ShouldNotThrow();
actionThatThrows.ShouldNotThrow <InvalidCastException>();
}
public void Exception_occuring_assertions()
{
SomeType someObject = new SomeType();
someObject.Invoking(subject => subject.SomeMethodThatThrows("Something"))
.ShouldThrow <ArgumentException>()
.WithMessage("Invalid message\r\nParameter name: message");
Action throwAction = () => someObject.SomeMethodThatThrows("Hello");
throwAction.ShouldThrow <ArgumentException>()
.WithInnerException <ArgumentOutOfRangeException>()
.WithInnerMessage("whatever\r\nParameter name: message");
throwAction.ShouldThrow <ArgumentException>().Which.ParamName.Should().Be("message");
throwAction.ShouldThrow <ArgumentException>().Where(exception => exception.Message == "Invalid message\r\nParameter name: message");
throwAction.ShouldThrow <ArgumentException>().WithMessage("*val*");
}