public void AddItemsTest() { //_context.Subjects.RemoveRange(_context.Subjects); var repo = new SubjectsRepository(_context); var item1 = new Subject { Name = "Automation Theory" }; var item2 = new Subject { Name = "Data Analysis" }; Subject[] items = new Subject[] { item1, item2 }; repo.AddItems(items); Assert.AreEqual(items[0].Name, _context.Subjects.FirstOrDefault(x => x.Name == "Automation Theory").Name); Assert.AreEqual(items[1].Name, _context.Subjects.FirstOrDefault(x => x.Name == "Data Analysis").Name); _context.Subjects.Remove(item1); _context.Subjects.Remove(item2); }