61 lines
2.3 KiB
Python
61 lines
2.3 KiB
Python
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import hashlib
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import json
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import subprocess
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import sys
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import tempfile
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import unittest
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from pathlib import Path
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ROOT = Path(__file__).resolve().parents[1]
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MANIFEST = json.loads((ROOT / "manifest.json").read_text())["files"]
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SCRIPT = ROOT / "scripts/apply.py"
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class ApplyPatchTests(unittest.TestCase):
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def setUp(self):
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self.temp = tempfile.TemporaryDirectory()
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self.site = Path(self.temp.name)
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for name in MANIFEST:
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target = self.site / name
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target.parent.mkdir(parents=True, exist_ok=True)
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target.write_bytes((ROOT / "upstream" / name).read_bytes())
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def tearDown(self):
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self.temp.cleanup()
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def command(self, action):
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return subprocess.run(
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[sys.executable, str(SCRIPT), action, "--site-packages", str(self.site)],
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capture_output=True,
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text=True,
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)
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def test_apply_is_idempotent_and_rollback_restores_originals(self):
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self.assertEqual(self.command("--check").returncode, 0)
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for _ in range(2):
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result = self.command("--apply")
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self.assertEqual(result.returncode, 0, result.stderr)
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for name, hashes in MANIFEST.items():
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target = self.site / name
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self.assertEqual(hashlib.sha256(target.read_bytes()).hexdigest(), hashes["patched_sha256"])
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backup = target.with_name(target.name + ".ppu-dsv4.orig")
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self.assertEqual(hashlib.sha256(backup.read_bytes()).hexdigest(), hashes["original_sha256"])
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result = self.command("--rollback")
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self.assertEqual(result.returncode, 0, result.stderr)
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for name, hashes in MANIFEST.items():
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self.assertEqual(hashlib.sha256((self.site / name).read_bytes()).hexdigest(), hashes["original_sha256"])
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def test_unknown_base_refuses_before_any_file_is_changed(self):
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changed = self.site / next(iter(MANIFEST))
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changed.write_bytes(b"unexpected version\n")
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result = self.command("--apply")
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self.assertNotEqual(result.returncode, 0)
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self.assertIn("does not match", result.stderr)
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for name, hashes in list(MANIFEST.items())[1:]:
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self.assertEqual(hashlib.sha256((self.site / name).read_bytes()).hexdigest(), hashes["original_sha256"])
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if __name__ == "__main__":
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unittest.main()
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