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import json
import os
import subprocess
import tempfile
import unittest
from pathlib import Path
from unittest.mock import patch
ROOT = Path(__file__).resolve().parents[1]
class CrateFetchTests(unittest.TestCase):
def test_checkout_path_with_special_characters(self):
attrs = {"url": "https://example.org/source.tar.gz", "hash": "unchanged"}
with tempfile.TemporaryDirectory() as directory:
checkout = Path(directory) / 'rui@canonical.com space " ${name}'
checkout.mkdir()
(checkout / "nix").symlink_to(ROOT / "nix", target_is_directory=True)
with patch(f"{__name__}.ROOT", checkout):
self.assertEqual(self.evaluate(attrs), attrs)
def evaluate(self, attrs):
expression = (
'let fetch = import (builtins.toPath (builtins.getEnv "CRATE_TEST_SOURCE")) (args: args); '
'in fetch (builtins.fromJSON (builtins.getEnv "CRATE_TEST_ATTRS"))'
)
return json.loads(
subprocess.check_output(
["nix", "eval", "--impure", "--json", "--expr", expression],
text=True,
env={
**os.environ,
"CRATE_TEST_SOURCE": str(ROOT / "nix/fetch-crate.nix"),
"CRATE_TEST_ATTRS": json.dumps(attrs),
},
)
)
def test_crate_uses_static_archive_and_keeps_hash(self):
attrs = {
"name": "download-hashbrown-0.16.1",
"url": "https://crates.io/api/v1/crates/hashbrown/0.16.1/download",
"sha256": "locked-checksum",
}
self.assertEqual(
self.evaluate(attrs),
{
**attrs,
"url": "https://static.crates.io/crates/hashbrown/hashbrown-0.16.1.crate",
},
)
def test_other_downloads_are_unchanged(self):
attrs = {"url": "https://example.org/source.tar.gz", "hash": "unchanged"}
self.assertEqual(self.evaluate(attrs), attrs)
def test_url_lists_are_unchanged(self):
attrs = {"urls": ["https://example.org/source.tar.gz"], "hash": "unchanged"}
self.assertEqual(self.evaluate(attrs), attrs)
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