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); }