def test_refresh_token_fails_no_auth():
client = AcmeClient()
with pytest.raises(ClientUnauthorizedException):
client.refresh_token(None)
def test_refresh_token_success():
client = AcmeClient()
client.login(user, pwd)
data = client.refresh_token(client.refresh_token_value)
assert 'access_token' in data and 'access_token_expires' in data