Rebecca Turnerandrootile
cb34b56fea
See: cl/4840
When importing Python modules, we include `functional2` in the module
path, like this:
from functional2.testlib.fixtures.env import ManagedEnv
This means that python expects to see a file like
`functional2/testlib/fixtures/env.py`. We run `pytest` from `tests/` in
the `justfile` and have `tests/functional2/__init__.py` so `pytest` in
`meson` is able to find these imports.
However, language servers generally consider the `pyproject.toml` to be
the project root, so (e.g.) `pyright` is unable to follow any of the
`functional2` imports, leading to lots of spurious errors.
In cl/4840 I moved `tests/functional2/pyproject.toml` to
`tests/pyproject.toml`, which worked but was considered aesthetically
unappealing.
This diff is much larger but it's a more elegant solution.
Change-Id: I2983c7b87f88f59a4e3521451a9f5acd6a6a6964
82 lines
2.8 KiB
Python
82 lines
2.8 KiB
Python
from pathlib import Path
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import pytest
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from testlib.fixtures.file_helper import with_files, File, CopyFile
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from testlib.fixtures.nix import Nix
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from testlib.utils import get_global_asset
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use_impure_message = "is forbidden in pure eval mode (use '--impure' to override)"
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def test_missing_impure_flag(nix: Nix):
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res = nix.eval("builtins.readFile ./test_pure_eval.py").expect(1)
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assert use_impure_message in res.stderr_s
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def test_unauthorized_paths(nix: Nix):
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res = nix.eval("builtins.pathExists ./test_pure_eval.py").json()
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assert res is False, "Calling 'pathExists' on a non-authorised path should return false"
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def test_builtins_time_not_available(nix: Nix):
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res = nix.eval("builtins.currentTime").expect(1)
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assert "error: attribute 'currentTime' missing" in res.stderr_s
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def test_builtins_system_not_available(nix: Nix):
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res = nix.eval("builtins.currentSystem").expect(1)
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assert "error: attribute 'currentSystem' missing" in res.stderr_s
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@with_files({"trivial.nix": get_global_asset("trivial.nix")})
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def test_pure_eval_simple_not_working(nix: Nix):
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res = nix.nix_instantiate(["--pure-eval", "trivial.nix"]).run().expect(1)
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assert use_impure_message in res.stderr_s
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def test_readdir_not_allowed(nix: Nix):
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res = nix.eval('builtins.readDir "/"').expect(1)
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assert use_impure_message in res.stderr_s
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@with_files({"test-file": File("bäh-sh")})
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def test_impure_allows_readfile(nix: Nix):
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res = (
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nix.nix(["eval", "--impure", "--expr", "builtins.readFile ./test-file"], flake=True)
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.run()
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.ok()
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)
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assert res.stdout_plain == '"bäh-sh"'
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@pytest.fixture
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def fetch_url_expr(files: Path) -> str:
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return f'(import (builtins.fetchurl {{ url = "file://{files}/pure-eval.nix"; }})).x'
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@with_files({"pure-eval.nix": CopyFile("assets/pure-eval.nix")})
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def test_impure_allows_fetchurl(nix: Nix, fetch_url_expr: str):
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res = nix.nix(["eval", "--impure", "--expr", fetch_url_expr], flake=True).run().ok()
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assert res.stdout_plain == "123"
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@with_files({"pure-eval.nix": CopyFile("assets/pure-eval.nix")})
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def test_fetchurl_requires_hash(nix: Nix, fetch_url_expr: str):
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res = nix.nix(["eval", "--expr", fetch_url_expr], flake=True).run().expect(1)
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assert "error: in pure evaluation mode, 'fetchurl' requires a 'sha256'" in res.stderr_s
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@with_files({"pure-eval.nix": CopyFile("assets/pure-eval.nix")})
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def test_fetchurl_available_with_hash(nix: Nix, files: Path):
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expected_hash = "sha256-YXhmEC+QvjpS/+wE8kE0hqpu5w+A7jhIfqCLpRVpw8w="
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nix.eval(
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f'(import (builtins.fetchurl {{ url = "file://{files}/pure-eval.nix"; sha256 = "{expected_hash}"; }})).x'
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)
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def test_eval_no_resolve_in_pure(nix: Nix):
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res = nix.eval("~/foo").expect(1)
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assert "can not be resolved in pure mode" in res.stderr_plain
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