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from __future__ import annotations
import importlib.util
import os
import shutil
import sys
from contextlib import contextmanager
from typing import TYPE_CHECKING
import pytest
from pytest_codspeed.instruments import MeasurementMode
from pytest_codspeed.utils import IS_PYTEST_BENCHMARK_INSTALLED
if TYPE_CHECKING:
from _pytest.pytester import RunResult
pytest_plugins = ["pytester"]
skip_without_pytest_benchmark = pytest.mark.skipif(
not IS_PYTEST_BENCHMARK_INSTALLED, reason="pytest_benchmark not installed"
)
skip_with_pytest_benchmark = pytest.mark.skipif(
IS_PYTEST_BENCHMARK_INSTALLED, reason="pytest_benchmark installed"
)
if IS_PYTEST_BENCHMARK_INSTALLED:
pytest_plugins.append("pytest_benchmark")
print(
"NOTICE: Testing with pytest-benchmark compatibility",
file=sys.stderr,
flush=True,
)
IS_VALGRIND_INSTALLED = shutil.which("valgrind") is not None
skip_without_valgrind = pytest.mark.skipif(
"PYTEST_CODSPEED_FORCE_VALGRIND_TESTS" not in os.environ
and not IS_VALGRIND_INSTALLED,
reason="valgrind not installed",
)
if IS_VALGRIND_INSTALLED:
print("NOTICE: Testing with valgrind compatibility", file=sys.stderr, flush=True)
IS_PERF_TRAMPOLINE_SUPPORTED = sys.version_info >= (3, 12)
skip_without_perf_trampoline = pytest.mark.skipif(
not IS_PERF_TRAMPOLINE_SUPPORTED, reason="perf trampoline is not supported"
)
skip_with_perf_trampoline = pytest.mark.skipif(
IS_PERF_TRAMPOLINE_SUPPORTED, reason="perf trampoline is supported"
)
# The name for the pytest-xdist plugin is just "xdist"
IS_PYTEST_XDIST_INSTALLED = importlib.util.find_spec("xdist") is not None
skip_without_pytest_xdist = pytest.mark.skipif(
not IS_PYTEST_XDIST_INSTALLED,
reason="pytest_xdist not installed",
)
@pytest.fixture(scope="function")
def codspeed_env(monkeypatch):
@contextmanager
def ctx_manager():
monkeypatch.setenv("CODSPEED_ENV", "1")
try:
yield
finally:
monkeypatch.delenv("CODSPEED_ENV", raising=False)
return ctx_manager
def run_pytest_codspeed_with_mode(
pytester: pytest.Pytester, mode: MeasurementMode, *args, **kwargs
) -> RunResult:
csargs = [
"--codspeed",
f"--codspeed-mode={mode.value}",
]
if mode == MeasurementMode.WallTime:
# Run only 1 round to speed up the test times
csargs.extend(["--codspeed-warmup-time=0", "--codspeed-max-rounds=2"])
return pytester.runpytest(
*csargs,
*args,
**kwargs,
)
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