public CourseDto CreateCourse(CreateCourseDto createCourseDto, string currentUserId)
{
CreateCourseValidator authorValidator = new CreateCourseValidator();
if (!authorValidator.Validate(createCourseDto).IsValid) throw new Exception("Check_Your_Fileds");
Course course = _mapper.Map<CreateCourseDto, Course>(createCourseDto);
course.CreatedOn = DateTime.Now;
course.CreatedBy = currentUserId;
_unitOfWork.CourseRepository.Add(course);
_unitOfWork.Save();
return _mapper.Map<Course, CourseDto>(course);
}
public async Task Validate_Should_Succeed_When_Command_Valid()
{
var unitOfWork = Substitute.For <ISchoolUnitOfWork>();
var sut = new CreateCourseValidator(unitOfWork);
var command = new CreateCourse(Guid.NewGuid(), "new Course");
var result = await sut.ValidateAsync(command, CancellationToken.None);
result.Should().NotBeNull();
result.Success.Should().BeTrue();
result.Errors.Should().BeEmpty();
}
public async Task ValidateAsync_should_fail_when_course_with_same_id_already_exists()
{
var course = new Course(Guid.NewGuid(), "existing course");
var repo = NSubstitute.Substitute.For <ICoursesRepository>();
repo.FindByIdAsync(Arg.Any <Guid>(), Arg.Any <CancellationToken>())
.ReturnsForAnyArgs(course);
var unitOfWork = NSubstitute.Substitute.For <ISchoolUnitOfWork>();
unitOfWork.CoursesRepository.ReturnsForAnyArgs(repo);
var sut = new CreateCourseValidator(unitOfWork);
var command = new CreateCourse(course.Id, "another course");
var result = await sut.ValidateAsync(command, CancellationToken.None);
result.Should().NotBeNull();
result.Success.Should().BeFalse();
result.Errors.Should().Contain(e =>
e.Context == nameof(CreateCourse.CourseId) && e.Message.Contains(course.Id.ToString()));
}
public async Task Validate_Should_Fail_When_Course_With_Same_Title_Already_Exists()
{
var course = new Course(Guid.NewGuid(), "existing course");
var repo = Substitute.For <ICoursesRepository>();
repo.FindAsync(null, Arg.Any <CancellationToken>())
.ReturnsForAnyArgs(new[] { course });
var unitOfWork = Substitute.For <ISchoolUnitOfWork>();
unitOfWork.CoursesRepository.ReturnsForAnyArgs(repo);
var sut = new CreateCourseValidator(unitOfWork);
var command = new CreateCourse(Guid.NewGuid(), course.Title);
var result = await sut.ValidateAsync(command, CancellationToken.None);
result.Should().NotBeNull();
result.Success.Should().BeFalse();
result.Errors.Should().Contain(e =>
e.Context == nameof(CreateCourse.CourseTitle) && e.Message.Contains(course.Title));
}
public CreateCourseCommand(CoursesContext context, CreateCourseValidator validator, IMapper mapper)
{
_context = context;
_validator = validator;
_mapper = mapper;
}
