public async Task CreateAsyncCreatesOneEntity()
        {
            BaseServiceTests.Initialize();

            var repository = new DbRepository <Assignment>(dbFixture.dbContext);
            var service    = new AssignmentService(repository);

            var assgnCount = this.dbFixture.dbContext.Assignments.Count();

            var lecturecise   = this.dbFixture.dbContext.Lecturecises.First();
            var lectureciseId = lecturecise.Id;

            var educator   = this.dbFixture.dbContext.Educator.First();
            var educatorId = educator.Id;

            await service.CreateAsync(new AssignmentCreateBindingModel()
            {
                Name          = "Assgn2",
                MaxGrade      = 10m,
                EducatorId    = educatorId,
                LectureciseId = lectureciseId
            });

            Assert.Equal(assgnCount + 1, dbFixture.dbContext.Assignments.Count());
        }
        public async Task <ActionResult <AssignmentDto> > CreateLessonAssignmentAsync(
            [FromRoute] Guid classroomId,
            [FromRoute] Guid lessonId,
            [FromBody] AssignmentDto assignmentDto
            )
        {
            var user = (ApplicationUser)HttpContext.Items["ApplicationUser"];

            Debug.Assert(user != null, nameof(user) + " != null");

            try
            {
                var classroom = await _classroomService.FindAsync(classroomId);

                var authorization = await _authorizationService.AuthorizeAsync(User, classroom, "IsInClassroom");

                if (!authorization.Succeeded)
                {
                    return(Forbid());
                }

                var assignment = await _assignmentService.CreateAsync(assignmentDto.ToAssignment());

                var lesson = await _lessonService.FindAsync(lessonId);

                await _lessonService.AddAssignmentAsync(lesson, assignment);

                return(Ok(assignment.ToDto()));
            }
            catch (Exception e)
            {
                Console.WriteLine(e);
                return(BadRequest());
            }
        }