public async Task <ICommandResult <Guid> > Handle(AddTodoListItemCommand request, CancellationToken cancellationToken)
{
var validationResult = await _validator.ValidateAsync(request, cancellationToken);
if (!validationResult.IsValid)
{
return(CommandResult <Guid> .Failure(validationResult.Errors));
}
var todoListItem = TodoListItem.CreateNew(request.Name,
request.Description,
request.DueDate);
_todoListItemsRepository.Insert(todoListItem);
await _todoListItemsRepository.SaveChangesAsync(cancellationToken);
return(CommandResult <Guid> .Success(todoListItem.TodoListItemId, "The to-do item was added successfully"));
}
public async Task Handle_WhenRequestIsValid_ShouldReturnCommandResultSuccess()
{
//Arrange
var successfulValidationResult = new ValidationResult();
_validator.ValidateAsync(Arg.Any <AddTodoListItemCommand>()).Returns(successfulValidationResult);
request = new AddTodoListItemCommand
{
Name = "Todo Item Test 1",
Description = "Description",
DueDate = DateTime.Now.Date
};
subject = new AddTodoListItemCommandHandler(_todoListItemsRepository, _validator);
//Act
var result = await subject.Handle(request, default);
//Assert
result.Errors.ShouldBeEmpty();
result.IsSuccessful.ShouldBeTrue();
result.Result.ShouldBeOfType <Guid>();
result.Message.ShouldBe("The to-do item was added 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 <AddTodoListItemCommand>()).Returns(new ValidationResult(validationErrors));
request = new AddTodoListItemCommand();
subject = new AddTodoListItemCommandHandler(_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 <Guid>();
result.Message.ShouldBeNull();
}
public async Task<ActionResult> AddTodoListItem([FromBody] AddTodoListItemCommand request)
{
var result = await _mediator.Send(request);
return Ok(result);
}
