No way to temporarily pass through requests(?)

[flaeppe]

In my suite a want the global default behaviour of disabling all external calls, unless explicitly excepted by a pass through.

I have the following fixture in a "root conftest.py" disabling calls:

@pytest.fixture(scope="session", autouse=True)
def _disable_external_httpx_calls() -> Generator[None, None, None]:
    with respx.mock:
        yield None

But now I want to, for a limited part of my tests, pass through some external request e.g.

def test_something():
    respx.route(host="localhost").pass_through()
    ...
    # Test done, but "localhost" will still be allowed

But as far as I can tell, the above pass through is globally configured. Which means that after I've called .pass_through() there's no reverting it.

Optimally I'd like to scope the pass through for a limited context, e.g.

def test_something():
    with respx.route(host="localhost").pass_through():
        ...
    # Test done, "localhost" disabled

[flaeppe]

To clarify I meant a minimal case looking along the lines of:

import httpx
import pytest
import respx

@pytest.fixture(scope="session", autouse=True)
def _disable_external_httpx_calls():
    with respx.mock:
        yield None

def test_first():
    respx.route(host="localhost").pass_through()
    httpx.get("http://localhost:8000/")

def test_second():
    httpx.get("http://localhost:8000/")

If test_first is called before test_second, the request in test_second will pass through to "localhost" but in that case I want to be able to block the request

[flaeppe]

I managed to figure out that since it's a global object involved I can create a fixture that wraps the pass through in a snapshot that'll get rolled back.

It auto-enables respx mocking essentially doing duplicate work, and it's slightly more verbose but that's only visible in the allowing fixture. But it's something that works at least.

@pytest.fixture(scope="session", autouse=True)
def _disable_external_httpx_calls():
    with respx.mock:
        yield None

@pytest.fixture()
def allow_localhost():
    with respx.mock:
        respx.route(host="localhost").pass_through()
        yield