"""Integration tests for lambda function."""
import json


def test_invoke_lambda(invoke_create_subscription_lambda):
    """Assert lambda action is successfully called."""
    assert 'StatusCode' in invoke_create_subscription_lambda
    assert invoke_create_subscription_lambda['StatusCode'] == 200
    assert 'Payload' in invoke_create_subscription_lambda
    result = json.loads(invoke_create_subscription_lambda['Payload'].read())
    assert result['status'] == 'OK'