public void Delete_ShouldDeleteMarkGeneralDataPoint()
        {
            // Arrange
            var context = GetContext(TestData.markGeneralDataPoints);
            var repo    = new SqlMarkGeneralDataPointRepo(context);

            int id = _rnd.Next(1, TestData.markGeneralDataPoints.Count());
            var markGeneralDataPoint = TestData.markGeneralDataPoints.FirstOrDefault(
                v => v.Id == id);

            // Act
            repo.Delete(markGeneralDataPoint);

            // Assert
            Assert.Null(repo.GetById(id));

            context.Database.EnsureDeleted();
            context.Dispose();
        }