public async Task AddUsersSampleSetsAsync_ShouldReturnNewUsersSampleSets()
        {
            //arrange
            UsersSampleSets usersSampleSets = new UsersSampleSets
            {
                Id           = 102,
                SampleSetsId = 1,
                UserId       = 1
            };
            ProjectDBContext projectDBContext = new ProjectDBContext(options);
            ProjectRepoDB    projectRepoDB    = new ProjectRepoDB(projectDBContext);

            //act
            var result = await projectRepoDB.AddUsersSampleSetsAsync(usersSampleSets);

            //assert
            Assert.Equal(usersSampleSets.Id, result.Id);
        }