public void AddItemsTest() { var repo = new MarksRepository(_context); var item1 = new Mark { Student = _context.Students.FirstOrDefault(), TeachSubj = _context.TeachSubjs.FirstOrDefault(x => x.Subject.Id == 1), StudentsMark = 55 }; var item2 = new Mark { Student = _context.Students.FirstOrDefault(), TeachSubj = _context.TeachSubjs.FirstOrDefault(x => x.Subject.Id == 2), StudentsMark = 55 }; Mark[] items = new Mark[] { item1, item2 }; repo.AddItems(items); var newitem1 = _context.Marks.FirstOrDefault(x => x.Student.Id == item1.Student.Id && x.TeachSubj.Id == item1.TeachSubj.Id && x.StudentsMark == item1.StudentsMark); var newitem2 = _context.Marks.FirstOrDefault(x => x.Student.Id == item2.Student.Id && x.TeachSubj.Id == item2.TeachSubj.Id && x.StudentsMark == item2.StudentsMark); Assert.AreEqual(items[0].StudentsMark, newitem1.StudentsMark); Assert.AreEqual(items[0].Student.Id, newitem1.Student.Id); Assert.AreEqual(items[0].TeachSubj.TeacherId, newitem1.TeachSubj.TeacherId); Assert.AreEqual(items[0].TeachSubj.SubjId, newitem1.TeachSubj.SubjId); Assert.AreEqual(items[1].StudentsMark, newitem2.StudentsMark); Assert.AreEqual(items[1].Student.Id, newitem2.Student.Id); Assert.AreEqual(items[1].TeachSubj.TeacherId, newitem2.TeachSubj.TeacherId); Assert.AreEqual(items[1].TeachSubj.SubjId, newitem2.TeachSubj.SubjId); _context.Marks.Remove(item1); _context.Marks.Remove(item2); }