public async Task <Result <Unit> > Handle(CreateDiscussionCommand request, CancellationToken cancellationToken)
{
// Get the currently authorized user.
var user = await _context.Users.SingleOrDefaultAsync(x =>
x.UserName == _userAccessor.GetCurrentUsername());
// Get the classroom that this discussion belongs to.
var classroom = await _context.Classrooms.SingleOrDefaultAsync(x =>
x.Id == request.ClassroomId);
// Create a new entry in the Discussions table.
var discussion = new Discussion {
Id = request.Id,
Name = request.Name,
Classroom = classroom,
CreatedBy = user
};
_context.Discussions.Add(discussion);
// Save changes to the database.
var success = await _context.SaveChangesAsync() > 0;
// Return the final response.
if (success)
{
return(Result <Unit> .Success(Unit.Value));
}
return(Result <Unit> .Failure("There was a problem saving changes."));
}
public void ShouldNotCallHandleIfNotSavedChanges()
{
context.Setup(x => x.Discussions).Returns(dbSetDiscussion.Object);
context.Setup(x => x.Posts).Returns(dbSetPost.Object);
context.Setup(x => x.SaveChangesAsync(It.IsAny <CancellationToken>())).Returns(Task.FromResult(0));
CreateDiscussionCommandHandler createDiscussionCommandHandler = new CreateDiscussionCommandHandler(context.Object, stringLocalizer.Object, mapper.Object);
CreateDiscussionCommand createDiscussionCommand = new CreateDiscussionCommand(discussionDto);
mapper.Setup(x => x.Map <Discussion>(createDiscussionCommand)).Returns(discussion);
Func <Task> act = async() => await createDiscussionCommandHandler.Handle(createDiscussionCommand, new CancellationToken());
act.Should().Throw <RestException>();
}
public async Task ShouldCallHandle()
{
context.Setup(x => x.Discussions).Returns(dbSetDiscussion.Object);
context.Setup(x => x.Posts).Returns(dbSetPost.Object);
context.Setup(x => x.SaveChangesAsync(It.IsAny <CancellationToken>())).Returns(Task.FromResult(1));
CreateDiscussionCommandHandler createDiscussionCommandHandler = new CreateDiscussionCommandHandler(context.Object, stringLocalizer.Object, mapper.Object);
CreateDiscussionCommand createDiscussionCommand = new CreateDiscussionCommand(discussionDto);
mapper.Setup(x => x.Map <Discussion>(createDiscussionCommand)).Returns(discussion);
var result = await createDiscussionCommandHandler.Handle(createDiscussionCommand, new CancellationToken());
result.Should().Be(id);
}
public void ShouldThrowValidationExceptionDuringDiscussionCreation(string testTitle, string testDescription, string testPostBody)
{
//arrange
var command = new CreateDiscussionCommand()
{
Id = Guid.NewGuid(),
Title = testTitle,
Description = testDescription,
PostBody = testPostBody
};
//act
//assert
FluentActions.Invoking(() =>
SendAsync(command)).Should().Throw <Common.Exceptions.ValidationException>();
}
public async Task ShouldThrowValidationExceptionDuringDiscussionCreation(string testTitle, string testDescription)
{
//arrange
var loggedUser = await RunAsUserAsync("scott101@localhost", "Pa$$w0rd!");
var createdDiscussionId = await SendAsync(new Faker <CreateDiscussionCommand>("en")
.RuleFor(d => d.Id, f => f.Random.Guid())
.RuleFor(d => d.Title, f => f.Lorem.Sentence(wordCount: 3))
.RuleFor(d => d.Description, f => f.Lorem.Sentences(sentenceCount: 2))
.RuleFor(d => d.PostBody, f => f.Lorem.Paragraph()).Generate());
var editCommand = new CreateDiscussionCommand()
{
Id = createdDiscussionId,
Title = testTitle,
Description = testDescription
};
//act
//assert
FluentActions.Invoking(() =>
SendAsync(editCommand)).Should().ThrowAsync <Common.Exceptions.ValidationException>();
}
public async Task <IActionResult> Create([FromBody] CreateDiscussionCommand command)
{
return(HandleResult(await Mediator.Send(command)));
}
