public async Task When_Add_Authenticated_User_Then_ScimIdentifier_Is_Returned()
        {
            // ARRANGE
            InitializeFakeObjects();
            _httpClientFactoryStub.Setup(h => h.GetHttpClient()).Returns(_testScimServerFixture.Client);

            // ACT
            var scimResponse = await _usersClient.AddAuthenticatedUser(baseUrl, "token");

            // ASSERTS
            Assert.Equal(HttpStatusCode.Created, scimResponse.StatusCode);
        }