nix-eval-jobs/tests/test_eval.py

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#!/usr/bin/env python3
import subprocess
import json
from tempfile import TemporaryDirectory
from pathlib import Path
from typing import List
TEST_ROOT = Path(__file__).parent.resolve()
PROJECT_ROOT = TEST_ROOT.parent
BIN = PROJECT_ROOT.joinpath("build", "src", "nix-eval-jobs")
def common_test(extra_args: List[str]) -> None:
with TemporaryDirectory() as tempdir:
cmd = [str(BIN), "--gc-roots-dir", tempdir] + extra_args
res = subprocess.run(
cmd,
cwd=TEST_ROOT.joinpath("assets"),
text=True,
check=True,
stdout=subprocess.PIPE,
)
data = json.loads(res.stdout)
assert len(data["builtJob"]["builds"]) == 1
assert len(data["substitutedJob"]["substitutes"]) >= 1
def test_flake() -> None:
common_test(["--flake", ".#"])
def test_expression() -> None:
common_test(["ci.nix"])