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fix(tests): fix instability of multicore runners

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This commit is contained in:
matejcik 2022-09-07 13:53:25 +02:00 committed by matejcik
parent a1ffdcaa8d
commit 4110f20abd
1 changed files with 13 additions and 3 deletions
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16
tests/conftest.py
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@ -20,6 +20,7 @@ import os
from typing import TYPE_CHECKING, Generator
import pytest
import xdist
from trezorlib import debuglink, log
from trezorlib.debuglink import TrezorClientDebugLink as Client
@ -77,8 +78,7 @@ def emulator(request: pytest.FixtureRequest) -> Generator["Emulator", None, None
Guarantees to be unique because each worker has a different name.
gw0=>20000, gw1=>20003, gw2=>20006, etc.
"""
worker_id = os.getenv("PYTEST_XDIST_WORKER")
assert worker_id is not None
worker_id = xdist.get_xdist_worker_id(request)
assert worker_id.startswith("gw")
# One emulator instance occupies 3 consecutive ports:
# 1. normal link, 2. debug link and 3. webauthn fake interface
@ -231,9 +231,19 @@ def client(
_raw_client.close()
def _is_main_runner(session_or_request: pytest.Session | pytest.FixtureRequest) -> bool:
"""Return True if the current process is the main test runner.
In case tests are run in parallel, the main runner is the xdist controller.
We cannot use `is_xdist_controller` directly because it is False when xdist is
not used.
"""
return xdist.get_xdist_worker_id(session_or_request) == "master"
def pytest_sessionstart(session: pytest.Session) -> None:
ui_tests.read_fixtures()
if session.config.getoption("ui"):
if session.config.getoption("ui") and _is_main_runner(session):
testreport.clear_dir()