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131 lines
5.3 KiB
131 lines
5.3 KiB
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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# Copyright 2019 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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"""Tests for git_llvm_rev."""
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import unittest
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import git_llvm_rev
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import llvm_project
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from git_llvm_rev import MAIN_BRANCH
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def get_llvm_config() -> git_llvm_rev.LLVMConfig:
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return git_llvm_rev.LLVMConfig(
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dir=llvm_project.get_location(), remote='origin')
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class Test(unittest.TestCase):
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"""Test cases for git_llvm_rev."""
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def rev_to_sha_with_round_trip(self, rev: git_llvm_rev.Rev) -> str:
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config = get_llvm_config()
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sha = git_llvm_rev.translate_rev_to_sha(config, rev)
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roundtrip_rev = git_llvm_rev.translate_sha_to_rev(config, sha)
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self.assertEqual(roundtrip_rev, rev)
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return sha
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def test_sha_to_rev_on_base_sha_works(self) -> None:
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sha = self.rev_to_sha_with_round_trip(
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git_llvm_rev.Rev(
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branch=MAIN_BRANCH, number=git_llvm_rev.base_llvm_revision))
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self.assertEqual(sha, git_llvm_rev.base_llvm_sha)
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def test_sha_to_rev_prior_to_base_rev_works(self) -> None:
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sha = self.rev_to_sha_with_round_trip(
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git_llvm_rev.Rev(branch=MAIN_BRANCH, number=375000))
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self.assertEqual(sha, '2f6da767f13b8fd81f840c211d405fea32ac9db7')
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def test_sha_to_rev_after_base_rev_works(self) -> None:
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sha = self.rev_to_sha_with_round_trip(
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git_llvm_rev.Rev(branch=MAIN_BRANCH, number=375506))
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self.assertEqual(sha, '3bf7fddeb05655d9baed4cc69e13535c677ed1dd')
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def test_llvm_svn_parsing_runs_ignore_reverts(self) -> None:
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# This commit has a revert that mentions the reverted llvm-svn in the
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# commit message.
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# Commit which performed the revert
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sha = self.rev_to_sha_with_round_trip(
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git_llvm_rev.Rev(branch=MAIN_BRANCH, number=374895))
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self.assertEqual(sha, '1731fc88d1fa1fa55edd056db73a339b415dd5d6')
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# Commit that was reverted
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sha = self.rev_to_sha_with_round_trip(
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git_llvm_rev.Rev(branch=MAIN_BRANCH, number=374841))
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self.assertEqual(sha, '2a1386c81de504b5bda44fbecf3f7b4cdfd748fc')
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def test_imaginary_revs_raise(self) -> None:
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with self.assertRaises(ValueError) as r:
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git_llvm_rev.translate_rev_to_sha(
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get_llvm_config(),
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git_llvm_rev.Rev(branch=MAIN_BRANCH, number=9999999))
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self.assertIn('Try updating your tree?', str(r.exception))
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def test_merge_commits_count_as_one_commit_crbug1041079(self) -> None:
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# This CL merged _a lot_ of commits in. Verify a few hand-computed
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# properties about it.
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merge_sha_rev_number = 4496 + git_llvm_rev.base_llvm_revision
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sha = self.rev_to_sha_with_round_trip(
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git_llvm_rev.Rev(branch=MAIN_BRANCH, number=merge_sha_rev_number))
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self.assertEqual(sha, '0f0d0ed1c78f1a80139a1f2133fad5284691a121')
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sha = self.rev_to_sha_with_round_trip(
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git_llvm_rev.Rev(branch=MAIN_BRANCH, number=merge_sha_rev_number - 1))
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self.assertEqual(sha, '6f635f90929da9545dd696071a829a1a42f84b30')
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sha = self.rev_to_sha_with_round_trip(
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git_llvm_rev.Rev(branch=MAIN_BRANCH, number=merge_sha_rev_number + 1))
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self.assertEqual(sha, '199700a5cfeedf227619f966aa3125cef18bc958')
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# NOTE: The below tests have _zz_ in their name as an optimization. Iterating
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# on a quick test is painful when these larger tests come before it and take
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# 7secs to run. Python's unittest module guarantees tests are run in
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# alphabetical order by their method name, so...
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#
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# If you're wondering, the slow part is `git branch -r --contains`. I imagine
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# it's going to be very cold code, so I'm not inclined to optimize it much.
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def test_zz_branch_revs_work_after_merge_points_and_svn_cutoff(self) -> None:
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# Arbitrary 9.x commit without an attached llvm-svn: value.
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sha = self.rev_to_sha_with_round_trip(
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git_llvm_rev.Rev(branch='release/9.x', number=366670))
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self.assertEqual(sha, '4e858e4ac00b59f064da4e1f7e276916e7d296aa')
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def test_zz_branch_revs_work_at_merge_points(self) -> None:
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rev_number = 366426
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backing_sha = 'c89a3d78f43d81b9cff7b9248772ddf14d21b749'
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sha = self.rev_to_sha_with_round_trip(
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git_llvm_rev.Rev(branch=MAIN_BRANCH, number=rev_number))
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self.assertEqual(sha, backing_sha)
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# Note that this won't round-trip: since this commit is on the main
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# branch, we'll pick main for this. That's fine.
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sha = git_llvm_rev.translate_rev_to_sha(
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get_llvm_config(),
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git_llvm_rev.Rev(branch='release/9.x', number=rev_number))
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self.assertEqual(sha, backing_sha)
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def test_zz_branch_revs_work_after_merge_points(self) -> None:
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# Picking the commit on the 9.x branch after the merge-base for that +
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# main. Note that this is where llvm-svn numbers should diverge from
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# ours, and are therefore untrustworthy. The commit for this *does* have a
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# different `llvm-svn:` string than we should have.
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sha = self.rev_to_sha_with_round_trip(
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git_llvm_rev.Rev(branch='release/9.x', number=366427))
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self.assertEqual(sha, '2cf681a11aea459b50d712abc7136f7129e4d57f')
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# FIXME: When release/10.x happens, it may be nice to have a test-case
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# generally covering that, since it's the first branch that we have to travel
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# back to the base commit for.
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if __name__ == '__main__':
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llvm_project.ensure_up_to_date()
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unittest.main()
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