piegamesandeldritch horrors
567348a90c
This commit enables the parametrization for "legacy-combined" protocol. All failing tests with that have been either fixed or disabled. Notably: - A couple of tests (e.g. involving builders) could be made to work with a non-local store, but this would require some refactoring to testlib in order to make certain configuration settings generic over local and remote operations. We've disabled those for now, in order to make progress - The store tests all run locally only because of their nature - The flakes tests also all run locally only because my energy for fixing them is limited (and it's a *lot* of test failures, with probably little overall benefit in terms of test coverage) Change-Id: I56fa249a64f7c17c952f688ec89e9687f2a13f12
73 lines
2.4 KiB
Python
73 lines
2.4 KiB
Python
import shutil
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import pytest
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import re
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import dataclasses
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from testlib.fixtures.command import CommandResult
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from testlib.fixtures.nix import Nix
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from testlib.fixtures.env import ManagedEnv
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def build(nix: Nix, *args) -> CommandResult:
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expr = """
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derivation {
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name = "test";
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system = builtins.currentSystem;
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builder = "/bin/sh";
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args = [ "-c" "echo > $out" ];
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outputHashMode = "flat";
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outputHash = "sha256-AbpHGcgLb+kRsJGnwFEktk7uzpZOCcBY74+YBdrKVGs=";
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}
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"""
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return nix.nix_build(["-E", expr, "--no-link", "--no-require-sigs", *args]).run()
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@dataclasses.dataclass
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class Caches:
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good: str
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bad: str
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@pytest.fixture
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def caches(nix: Nix, env: ManagedEnv) -> Caches:
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good_path, bad_path = env.dirs.home / "good", env.dirs.home / "bad"
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good_uri, bad_uri = f"file://{good_path}", f"file://{bad_path}"
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# build the derivation
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output = build(nix).ok().stdout_s.strip()
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# copy it to the good cache
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nix.nix(["copy", output, "--to", good_uri, "--no-require-sigs"], flake=True).run().ok()
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# create the bad cache by simulating read failures
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shutil.copytree(good_path, bad_path)
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for info in bad_path.glob("*.narinfo"):
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info.chmod(0o200)
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nix.nix(["store", "delete", output], flake=True).run().ok()
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return Caches(good=good_uri, bad=bad_uri)
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def test_substitution_fallback_good_first(nix: Nix, caches: Caches):
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build(nix, "--substituters", f"{caches.good} {caches.bad}").ok()
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@pytest.mark.no_daemon
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def test_substitution_fallback_bad_first(nix: Nix, caches: Caches):
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# we expect three warnings for the single nar: two from querying, one from the substitution itself
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result = build(nix, "--substituters", f"{caches.bad} {caches.good}").ok()
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assert len(re.findall(r"warning.*narinfo", result.stderr_s)) == 3
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@pytest.mark.no_daemon
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def test_substitution_fallback_may_build(nix: Nix, caches: Caches):
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# we expect two errors for the single nar: one from querying, one from the substitution itself
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result = build(nix, "--substituters", f"{caches.bad}", "--fallback").ok()
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assert len(re.findall(r"error.*narinfo", result.stderr_s)) == 2
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@pytest.mark.no_daemon
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def test_substitution_fallback_no_build(nix: Nix, caches: Caches):
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# we expect one error, and it's fatal
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result = build(nix, "--substituters", f"{caches.bad}").expect(1)
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assert len(re.findall(r"error.*narinfo", result.stderr_s)) == 1
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