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Krzysztof kuhy Rudnicki
cef9fccab8
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Todo: 9b9342ba
111 lines
3.6 KiB
Python
111 lines
3.6 KiB
Python
"""Autouse guard that stops tests shelling out to real commands.
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Split out of ``conftest.py`` to keep every file inside the 250-line cap;
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``conftest`` imports the fixture by name, which is what registers it.
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"""
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from __future__ import annotations
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from typing import TYPE_CHECKING
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from unittest.mock import MagicMock, patch
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import pytest
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if TYPE_CHECKING:
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from collections.abc import Iterator
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@pytest.fixture(autouse=True)
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def _block_real_subprocesses() -> Iterator[None]:
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"""Block subprocess calls that could launch real Steam or modify system.
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Individual tests that need to test subprocess behaviour should
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patch the specific module's ``subprocess.run`` / ``subprocess.Popen``
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themselves — their local patch will override this one.
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"""
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noop_run = MagicMock(return_value=MagicMock(returncode=1))
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noop_popen = MagicMock()
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with (
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patch(
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"steam_backlog_enforcer.game_install.subprocess.run",
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noop_run,
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),
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patch(
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"steam_backlog_enforcer.game_install.subprocess.Popen",
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noop_popen,
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),
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patch(
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"steam_backlog_enforcer.enforcer.subprocess.run",
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noop_run,
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),
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patch(
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"steam_backlog_enforcer.store_blocker.subprocess.run",
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noop_run,
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),
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patch(
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"steam_backlog_enforcer._total_block.subprocess.run",
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noop_run,
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),
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patch(
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"steam_backlog_enforcer._pacman.subprocess.run",
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noop_run,
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),
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patch(
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"steam_backlog_enforcer._total_block_hosts.subprocess.run",
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noop_run,
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),
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patch(
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"steam_backlog_enforcer._total_block_iptables.subprocess.run",
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noop_run,
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),
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# library_hider no longer spawns: its launch/process code lives in
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# _steam_launch / _steam_process, and _steam_client starts the client.
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# Every module that can spawn must be patched here, or a test could
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# fire a real `sudo -u kuhy steam`.
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patch(
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"steam_backlog_enforcer._steam_launch.subprocess.run",
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noop_run,
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),
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patch(
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"steam_backlog_enforcer._steam_launch.subprocess.Popen",
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noop_popen,
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),
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patch(
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"steam_backlog_enforcer._steam_process.subprocess.Popen",
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noop_popen,
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),
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patch(
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"steam_backlog_enforcer._steam_client.subprocess.run",
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noop_run,
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),
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patch(
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"steam_backlog_enforcer._steam_client.subprocess.Popen",
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noop_popen,
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),
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# The single most important patch in this file. _playtime_block._run
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# executes `mount --bind` against paths that, unpatched, are the real
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# /usr/bin/steam. A test that reached the real subprocess would mask
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# the user's actual Steam install with a refusal stub.
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patch(
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"steam_backlog_enforcer._playtime_run.subprocess.run",
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noop_run,
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),
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# steam-game-installer closes the user's Steam; never reach it.
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patch(
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"steam_backlog_enforcer._fast_install.subprocess.run",
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noop_run,
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),
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patch(
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"steam_backlog_enforcer._fast_install.subprocess.Popen",
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noop_popen,
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),
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# A real `pnpm build` here would rewrite web/dist/index.html, which
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# then perturbs frontend_is_stale() for every later test in the run.
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patch(
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"steam_backlog_enforcer._web_build.subprocess.run",
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noop_run,
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),
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):
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yield
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