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#!/usr/bin/env python3
import json
import os
import subprocess
import pytest
from pathlib import Path
from tempfile import TemporaryDirectory
from typing import Any, Dict, List
TEST_ROOT = Path(__file__).parent.resolve()
# subprojects/nix-eval-jobs/tests
# PROJECT_ROOT = TEST_ROOT.parent.parent.parent
# BIN = PROJECT_ROOT.joinpath("outputs", "out", "bin", "nix-eval-jobs")
BIN = "nix-eval-jobs"
def check_gc_root(gcRootDir: str, drvPath: str):
"""
Make sure the expected GC root exists in the given dir
"""
link_name = os.path.basename(drvPath)
symlink_path = os.path.join(gcRootDir, link_name)
assert os.path.islink(symlink_path) and drvPath == os.readlink(symlink_path)
def evaluate(
tempdir: TemporaryDirectory,
expected_statuscode: int = 0,
extra_args: List[str] = [],
) -> tuple[Dict[str, Dict[str, Any]], str]:
if nixpkgs_path := os.getenv("NEJ_NIXPKGS_PATH"):
if "--flake" in extra_args:
extra_args.extend(["--override-input", "nixpkgs", f"path:{nixpkgs_path}"])
else:
extra_args.extend(["--arg", "pkgs", f"import {nixpkgs_path} {{}}"])
cmd = [
str(BIN),
"--gc-roots-dir",
tempdir,
"--meta",
"--extra-experimental-features",
"flakes",
] + extra_args
res = subprocess.run(
cmd,
cwd=TEST_ROOT.joinpath("assets"),
text=True,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
)
assert res.returncode == expected_statuscode
print(res.stdout)
print(res.stderr)
return sorted([json.loads(r) for r in res.stdout.split("\n") if r], key=lambda job: job["attr"]), res.stderr
def common_test(extra_args: List[str]) -> List[Dict[str, Any]]:
with TemporaryDirectory() as tempdir:
results, _ = evaluate(tempdir, 0, extra_args)
assert len(results) == 4
dotted_job = results[0]
assert dotted_job["attr"] == '"dotted.attr"'
assert dotted_job["attrPath"] == ["dotted.attr"]
check_gc_root(tempdir, dotted_job["drvPath"])
built_job = results[1]
assert built_job["attr"] == "builtJob"
assert built_job["name"] == "job1"
assert built_job["outputs"]["out"].startswith("/nix/store")
assert built_job["drvPath"].endswith(".drv")
assert built_job["meta"]["broken"] is False
check_gc_root(tempdir, built_job["drvPath"])
recurse_drv = results[2]
assert recurse_drv["attr"] == "recurse.drvB"
assert recurse_drv["name"] == "drvB"
check_gc_root(tempdir, recurse_drv["drvPath"])
substituted_job = results[3]
assert substituted_job["attr"] == "substitutedJob"
assert substituted_job["name"].startswith("hello-")
assert substituted_job["meta"]["broken"] is False
return results
def test_flake() -> None:
results = common_test(["--flake", ".#hydraJobs"])
for result in results:
assert "isCached" not in result
def test_query_cache_status() -> None:
results = common_test(["--flake", ".#hydraJobs", "--check-cache-status"])
# FIXME in the nix sandbox we cannot query binary caches
# this would need some local one
for result in results:
assert "isCached" in result
def test_expression() -> None:
results = common_test(["ci.nix"])
for result in results:
assert "isCached" not in result
with open(TEST_ROOT.joinpath("assets/ci.nix"), "r") as ci_nix:
common_test(["-E", ci_nix.read()])
def test_eval_error() -> None:
with TemporaryDirectory() as tempdir:
results, _ = evaluate(
tempdir,
0,
["--workers", "1", "--flake", ".#legacyPackages.x86_64-linux.brokenPkgs"],
)
assert len(results) == 1
attr = results[0]
assert attr["attr"] == "brokenPackage"
assert "this is an evaluation error" in attr["error"]
@pytest.mark.infiniterecursion
def test_recursion_error() -> None:
with TemporaryDirectory() as tempdir:
results, stderr = evaluate(
tempdir,
1,
[
"--workers",
"1",
"--flake",
".#legacyPackages.x86_64-linux.infiniteRecursionPkgs",
],
)
print(stderr)
assert "packageWithInfiniteRecursion" in stderr
assert "possible infinite recursion" in stderr
def test_constituents() -> None:
with TemporaryDirectory() as tempdir:
results, _ = evaluate(
tempdir,
0,
[
"--workers",
"1",
"--flake",
".#legacyPackages.x86_64-linux.constituents.success",
"--constituents",
],
)
assert len(results) == 4
child = results[0]
assert child["attr"] == "anotherone"
assert "constituents" not in child
assert "namedConstituents" not in child
direct = results[1]
assert direct["attr"] == "direct_aggregate"
assert "constituents" in direct
assert "namedConstituents" not in direct
indirect = results[2]
assert indirect["attr"] == "indirect_aggregate"
assert "constituents" in indirect
assert "namedConstituents" not in indirect
mixed = results[3]
assert mixed["attr"] == "mixed_aggregate"
def absent_or_empty(f: str, d: dict) -> bool:
return f not in d or len(d[f]) == 0
assert absent_or_empty("namedConstituents", direct)
assert absent_or_empty("namedConstituents", indirect)
assert absent_or_empty("namedConstituents", mixed)
assert direct["constituents"][0].endswith("-job1.drv")
assert indirect["constituents"][0] == child["drvPath"]
assert mixed["constituents"][0].endswith("-job1.drv")
assert mixed["constituents"][1] == child["drvPath"]
assert "error" not in direct
assert "error" not in indirect
assert "error" not in mixed
check_gc_root(tempdir, direct["drvPath"])
check_gc_root(tempdir, indirect["drvPath"])
check_gc_root(tempdir, mixed["drvPath"])
def test_constituents_cycle() -> None:
with TemporaryDirectory() as tempdir:
results, _ = evaluate(
tempdir,
0,
[
"--workers",
"1",
"--flake",
".#legacyPackages.x86_64-linux.constituents.cycle",
"--constituents",
],
)
assert len(results) == 2
assert list(map(lambda x: x["name"], results)) == ["aggregate0", "aggregate1"]
for i in results:
assert i["error"] == "Dependency cycle: aggregate0 <-> aggregate1"
def test_constituents_error() -> None:
with TemporaryDirectory() as tempdir:
results, _ = evaluate(
tempdir,
0,
[
"--workers",
"1",
"--flake",
".#legacyPackages.x86_64-linux.constituents.failures",
"--constituents",
],
)
assert len(results) == 2
aggregate = results[0]
assert aggregate["attr"] == "aggregate"
assert "namedConstituents" not in aggregate
assert "doesntexist: does not exist\n" in aggregate["error"]
assert "constituents" in aggregate
child = results[1]
assert child["attr"] == "doesnteval"
assert "error" in child
def test_transitivity() -> None:
with TemporaryDirectory() as tempdir:
results, _ = evaluate(
tempdir,
0,
[
"--workers",
"1",
"--flake",
".#legacyPackages.x86_64-linux.constituents.transitive",
"--constituents",
],
)
assert len(results) == 3
aggregate0 = results[0]
assert aggregate0["attr"] == "aggregate0"
aggregate1 = results[1]
assert aggregate1["attr"] == "aggregate1"
job = results[2]
assert job["attr"] == "constituent"
assert "constituents" not in job
assert aggregate1["drvPath"] == aggregate0["constituents"][0]
def test_mutually_exclusive_combinations() -> None:
with TemporaryDirectory() as tempdir:
for flag in ["constituents", "check-cache-status"]:
result = subprocess.run(
[
str(BIN),
"--gc-roots-dir",
tempdir,
"--meta",
"--extra-experimental-features",
"flakes",
"--no-instantiate",
f"--{flag}",
"--workers",
"1",
"--flake",
".#legacyPackages.x86_64-linux.constituents.success",
],
text=True,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
)
assert result.returncode == 1
assert f"--no-instantiate and --{flag} are mutually exclusive" in result.stderr
def test_no_instantiate_mode() -> None:
"""Test that --no-instantiate flag works correctly"""
with TemporaryDirectory() as tempdir:
path = Path(tempdir)
gcroots = path / "gcroots"
gcroots.mkdir()
results, _ = evaluate(
tempdir,
0,
[
"--gc-roots-dir",
gcroots,
"--eval-store",
path / "root",
"--meta",
"--no-instantiate",
"--flake",
".#hydraJobs",
]
)
assert len(results) == 4
# Check that all results have the expected structure
for result in results:
# In no-instantiate mode, drvPath should still be present (from the attr)
assert "drvPath" in result
assert result["drvPath"].endswith(".drv")
assert not (path / "root" / result["drvPath"][1:]).exists()
# System should still be present (from querySystem fallback)
assert "system" in result
assert result["system"] != ""
# Name should still be present
assert "name" in result
# Outputs should still be present but may be empty
assert "outputs" in result
# Cache status should not be present (it's Unknown and not included)
assert "cacheStatus" not in result
assert "neededBuilds" not in result
assert "neededSubstitutes" not in result
# Input drvs should not be present (requires reading derivation from store)
assert not result["inputDrvs"]
# No GC roots should be created in no-instantiate mode
assert len(list(Path(gcroots).iterdir())) == 0
|