public async Task CreateRemark_WithCorrectData_ShouldSuccessfullyCreateRemark()
{
string errorMessagePrefix = "RemarkService CreateRemarkAsync() does not work properly.";
var context = NetBookDbContextInMemoryFactory.InitializeContext();
await this.SeedData(context);
this.remarkService = new RemarkService(context);
var student = new Student {
Id = "CreateRemark", Remarks = new List <Remark>(), Class = new Class()
};
await context.Students.AddAsync(student);
await context.SaveChangesAsync();
var testRemark = new RemarkServiceModel {
Id = "TestRemark", StudentId = student.Id, Student = student.To <StudentServiceModel>()
};
var actualResult = await this.remarkService.CreateRemarkAsync(testRemark);
var studentRemarks = context.Students.Find(student.Id).Remarks;
Assert.True(actualResult, errorMessagePrefix);
Assert.True(studentRemarks.Contains(context.Remarks.Find(testRemark.Id)), errorMessagePrefix + " " + "Remark is not added to student.");
}
public async Task CreateRemark_WithNonExistentStudent_ShouldThrowArgumentNullException()
{
string errorMessagePrefix = "RemarkService CreateRemarkAsync() does not work properly.";
var context = NetBookDbContextInMemoryFactory.InitializeContext();
await this.SeedData(context);
this.remarkService = new RemarkService(context);
var testRemark = new RemarkServiceModel();
await Assert.ThrowsAsync <ArgumentNullException>(async() => await this.remarkService.CreateRemarkAsync(testRemark));
}
public async Task <bool> CreateRemarkAsync(RemarkServiceModel model)
{
var remark = Mapper.Map <Remark>(model);
var student = await this.context.Students.Include(c => c.Class).SingleOrDefaultAsync(s => s.Id == model.StudentId);
if (student == null)
{
throw new ArgumentNullException(nameof(student));
}
student.Remarks.Add(remark);
this.context.Remarks.Update(remark);
await this.context.Remarks.AddAsync(remark);
int result = await this.context.SaveChangesAsync();
return(result > 0);
}
