def test_quiet_with_password_prompt(self, httpbin, quiet_flags):
        """
        Tests whether httpie still prompts for a password when request
        requires authentication and only username is provided

        """
        env = MockEnvironment(
            stdin_isatty=True,
            stdout_isatty=True,
            devnull=io.BytesIO()
        )
        r = http(
            *quiet_flags, '--auth', 'user', 'GET',
            httpbin.url + '/basic-auth/user/password',
            env=env
        )
        assert env.stdout is env.devnull
        assert env.stderr is env.devnull
        assert HTTP_OK in r.devnull
        assert r == ''
        assert r.stderr == ''