public async Task Handle_WhenRequestIsValid_ShouldReturnCommandResultSuccess()
{
//Arrange
var successfulValidationResult = new ValidationResult();
_validator.ValidateAsync(Arg.Any <DeleteTodoListItemCommand>()).Returns(successfulValidationResult);
var todoListItemId = Guid.NewGuid();
_todoListItemsRepository.AnyAsync(Arg.Any <Expression <Func <TodoListItem, bool> > >()).Returns(true);
request = new DeleteTodoListItemCommand
{
TodoListItemId = todoListItemId
};
subject = new DeleteTodoListItemCommandHandler(_todoListItemsRepository, _validator);
//Act
var result = await subject.Handle(request, default);
//Assert
result.Errors.ShouldBeEmpty();
result.IsSuccessful.ShouldBeTrue();
result.Result.ShouldBeOfType <MediatR.Unit>();
result.Message.ShouldBe("The to-do item was deleted successfully");
}
public async Task Handle_WhenValidationFails_ShouldReturnCommandResultFailure()
{
//Arrange
var validationErrors = new List <ValidationFailure>
{
new ValidationFailure("PropertyName", "A validation error message"),
new ValidationFailure("PropertyName2", "Another validation error message")
};
var successfulValidationResult = new ValidationResult(validationErrors);
_validator.ValidateAsync(Arg.Any <DeleteTodoListItemCommand>()).Returns(new ValidationResult(validationErrors));
request = new DeleteTodoListItemCommand();
subject = new DeleteTodoListItemCommandHandler(_todoListItemsRepository, _validator);
//Act
var result = await subject.Handle(request, default);
//Assert
result.Errors.ShouldBe(validationErrors.Select(error => error.ErrorMessage));
result.IsSuccessful.ShouldBeFalse();
result.Result.ShouldBeOfType <MediatR.Unit>();
result.Message.ShouldBeNull();
}
public async Task<ActionResult> DeleteTodoListItem([FromRoute] DeleteTodoListItemCommand request)
{
var result = await _mediator.Send(request);
return Ok(result);
}