def test_request_id_can_be_set_on_error(client):
# Given that I have an existing request id
# When I make a request to the app
response = client.get("/fail", headers={"x-request-id": "a-request-id"})
# Then that same request id should appear in the response headers
assert response.headers["x-request-id"] == "a-request-id"
# And the request id for the current thread should be cleared
assert RequestId.get_request_id() is None
def test_request_id_can_be_autogenerated(client):
# Given that I don't have an existing request id
# When I make a request to the app
response = client.get("/")
# Then my response should contain an autogenerated request id
assert response.headers["x-request-id"]
# And the request id for the current thread should be cleared
assert RequestId.get_request_id() is None