Mercurial > hg
view tests/test-revlog.t @ 49214:eca367970253 stable
run-tests: send the test result after freeing the channel
Sending the message about the test being "done" signals to the main thread that
a new test can be started. Before this changeset, we sent this signal before
freeing the channel, there is room for a race condition where a new test would
search for a channel before the old test freed the one it used.
This is an example of the failure it would produce:
https://foss.heptapod.net/mercurial/mercurial-devel/-/jobs/552404
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Tue, 24 May 2022 09:57:53 +0200 |
parents | cc92ad0e8185 |
children | 75d0775dce7f |
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$ hg init empty-repo $ cd empty-repo Flags on revlog version 0 are rejected >>> with open('.hg/store/00changelog.i', 'wb') as fh: ... fh.write(b'\x00\x01\x00\x00') and None $ hg log abort: unknown flags (0x01) in version 0 revlog 00changelog [50] Unknown flags on revlog version 1 are rejected >>> with open('.hg/store/00changelog.i', 'wb') as fh: ... fh.write(b'\x00\x04\x00\x01') and None $ hg log abort: unknown flags (0x04) in version 1 revlog 00changelog [50] Unknown version is rejected >>> with open('.hg/store/00changelog.i', 'wb') as fh: ... fh.write(b'\x00\x00\xbe\xef') and None $ hg log abort: unknown version (48879) in revlog 00changelog [50] $ cd .. Test for CVE-2016-3630 $ mkdir test2; cd test2 $ hg init >>> import codecs >>> open("a.i", "wb").write(codecs.decode(codecs.decode( ... b"""eJxjYGZgZIAAYQYGxhgom+k/FMx8YKx9ZUaKSOyqo4cnuKb8mbqHV5cBCVTMWb1Cwqkhe4Gsg9AD ... Joa3dYtcYYYBAQ8Qr4OqZAYRICPTSr5WKd/42rV36d+8/VmrNpv7NP1jQAXrQE4BqQUARngwVA==""", ... "base64"), "zlib")) and None $ hg debugrevlogindex a.i rev linkrev nodeid p1 p2 0 2 99e0332bd498 000000000000 000000000000 1 3 6674f57a23d8 99e0332bd498 000000000000 >>> from mercurial.revlogutils.constants import KIND_OTHER >>> from mercurial import revlog, vfs >>> tvfs = vfs.vfs(b'.') >>> tvfs.options = {b'revlogv1': True} >>> rl = revlog.revlog(tvfs, target=(KIND_OTHER, b'test'), radix=b'a') >>> rl.revision(1) mpatchError(*'patch cannot be decoded'*) (glob) $ cd .. Regression test for support for the old repos with strange diff encoding. Apparently it used to be possible (maybe it's still possible, but we don't know how) to create commits whose diffs are encoded relative to a nullrev. This test checks that a repo with that encoding can still be read. This is what we did to produce the repo in test-revlog-diff-relative-to-nullrev.tar: - tweak the code in mercurial/revlogutils/deltas.py to produce such "trivial" deltas: > if deltainfo is None: > - deltainfo = self._fullsnapshotinfo(fh, revinfo, target_rev) > + deltainfo = self._builddeltainfo(revinfo, nullrev, fh) - hg init - echo hi > a - hg commit -Am_ - remove some cache files $ tar --force-local -xf "$TESTDIR"/bundles/test-revlog-diff-relative-to-nullrev.tar $ cd nullrev-diff $ hg debugdeltachain a rev chain# chainlen prev delta size rawsize chainsize ratio lindist extradist extraratio readsize largestblk rddensity srchunks 0 1 2 -1 p1 15 3 15 5.00000 15 0 0.00000 15 15 1.00000 1 $ hg cat --config rhg.cat=true -r 0 a hi $ cd ..