public async Task AddUserProjectAsync_ShouldReturnNewUserProject_WhenUserProjectIsValid()
        {
            //arrange
            var userProject = new UserProject
            {
                Id        = 7,
                ProjectId = 1,
                UserId    = 1
            };
            var projectDBContext = new ProjectDBContext(options);
            var projectrepoDB    = new ProjectRepoDB(projectDBContext);

            //act
            var result = await projectrepoDB.AddUserProjectAsync(userProject);

            //assert
            Assert.Equal(userProject.ProjectId, result.ProjectId);
        }