public async Task TestAddAndRemoveUserFromGroup()
        {
            var addUserResult = await AccountProvisioning.AddUserToGroupAsync(m_groupId, m_userId1);

            Assert.AreEqual(1, addUserResult.Users.Length);

            var listUsersResult = await AccountProvisioning.UsersGroupUsersAsync(m_groupId);

            Assert.AreEqual(1, listUsersResult.Users.Length);

            var removeUserResult = await AccountProvisioning.RemoveUserFromGroupAsync(m_groupId, m_userId1);

            Assert.AreEqual(0, removeUserResult.Users.Length);
        }