Commentator2.0andRutile
7869385b98
So far, the environment used by `command` was completely leaky and the one used by `nix` was very leaky despite it trying to be a "hermetic" environment. This commit moves the hermaticity to `command` and changes its implementation to be not leak anything. To achieve this, the following changes were also nessecary: - the `files` and `snapshot` fixture now use the folder `test-home` within the tmp_path directory by default, as the `HOME` environment variable is set to there. (extraction not possible due to dependencies of command etc also using this directory) Fixes: #847, #848 Change-Id: I55f86ee0e1615e73fcf442ee2f28f3b89893bbb4
78 lines
2.5 KiB
Python
78 lines
2.5 KiB
Python
import re
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from pathlib import Path
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import pytest
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from functional2.testlib.fixtures.env import ManagedEnv
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from functional2.testlib.fixtures.nix import NixSettings
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def test_nix_settings_serializes_xf(env: ManagedEnv):
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settings = NixSettings(nix_store_dir=Path("/store/nix"))
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settings.feature("a", "b")
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expected = r"(.|\n)*experimental-features = (a|b) (a|b)\n(.|\n)*"
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assert re.fullmatch(expected, settings.to_config(env), re.MULTILINE)
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def test_nix_settings_serializes_store(env: ManagedEnv):
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settings = NixSettings(nix_store_dir=Path("/store/nix"))
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settings.store = "some/path"
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expected = "store = some/path\n"
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assert expected in settings.to_config(env)
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def test_nix_settings_serializes_both(env: ManagedEnv):
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settings = NixSettings(nix_store_dir=Path("/store/nix"))
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settings.feature("a", "b")
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settings.store = "some/path"
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expected = "experimental-features = a b\nstore = some/path\n"
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assert expected in settings.to_config(env)
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def test_nix_settings_ser_fails_bad_top_level_type(env: ManagedEnv):
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settings = NixSettings(nix_store_dir=Path("/store/nix"))
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settings.experimental_features = {"a": "b"} # type: ignore we are testing the types here
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with pytest.raises(ValueError, match=r"Value is unsupported in nix config: {'a': 'b'}"):
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settings.to_config(env)
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def test_nix_settings_ser_fails_bad_sub_type(env: ManagedEnv):
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settings = NixSettings(nix_store_dir=Path("/store/nix"))
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settings.experimental_features = [["a", "b"], "c"] # type: ignore we are testing the types here
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with pytest.raises(ValueError, match=r"Value is unsupported in nix config: .+"):
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settings.to_config(env)
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def test_nix_settings_fails_without_store_and_store_dir(env: ManagedEnv):
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settings = NixSettings()
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with pytest.raises(
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AssertionError,
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match=r"Failing to set either nix_store_dir or store will cause accidental use of the system store.",
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):
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settings.to_config(env)
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def test_nix_settings_to_env_overlay_no_store_dir(tmp_path: Path):
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env = ManagedEnv(tmp_path)
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settings = NixSettings()
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settings.store = "some/path"
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settings.to_env_overlay(env)
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assert "store = some/path\n" in env._env["NIX_CONFIG"]
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def test_nix_settings_to_env_overlay_store_dir(tmp_path: Path):
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env = ManagedEnv(tmp_path)
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settings = NixSettings()
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settings.nix_store_dir = Path("/some/path")
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settings.to_env_overlay(env)
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assert "store = " not in env._env["NIX_CONFIG"]
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assert env.dirs.nix_store_dir == "/some/path"
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