Mercurial > hg
view tests/test-fastannotate-revmap.py @ 49603:3eda36e9b3d6 stable
matcher: fix issues regex flag contained in pattern (issue6759)
Python 3.11 is now enforcing that flag must be at the beginning of the regex
This creates a serious regression for people using Python 3.11 with an hgignore
using flag in a "relre" pattern.
We now detect any flags in such pattern and "prepend" our ".*" pattern after them.
In addition, we now insert the flag in the regexp to only affect the pattern we
are rewriting. Otherwise, the regex built from the combined pattern would these
flags in the middle of it anyway.
As a side effect of this last change, we fix a bug… before this change regex
flag in a pattern would affect all combined patterns. That was bad and is not
longer the case.
The Rust code needs to be updated to fix that very bug, but we will do it in
another changeset.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Wed, 16 Nov 2022 13:05:01 +0100 |
parents | 56f98406831b |
children |
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import os import tempfile from mercurial import ( pycompat, util, ) from hgext.fastannotate import error, revmap def genhsh(i): return pycompat.bytechr(i) + b'\0' * 19 def gettemppath(): fd, path = tempfile.mkstemp() os.close(fd) os.unlink(path) return path def ensure(condition): if not condition: raise RuntimeError('Unexpected') def testbasicreadwrite(): path = gettemppath() rm = revmap.revmap(path) ensure(rm.maxrev == 0) for i in range(5): ensure(rm.rev2hsh(i) is None) ensure(rm.hsh2rev(b'\0' * 20) is None) paths = [ b'', b'a', None, b'b', b'b', b'c', b'c', None, b'a', b'b', b'a', b'a', ] for i in range(1, 5): ensure(rm.append(genhsh(i), sidebranch=(i & 1), path=paths[i]) == i) ensure(rm.maxrev == 4) for i in range(1, 5): ensure(rm.hsh2rev(genhsh(i)) == i) ensure(rm.rev2hsh(i) == genhsh(i)) # re-load and verify rm.flush() rm = revmap.revmap(path) ensure(rm.maxrev == 4) for i in range(1, 5): ensure(rm.hsh2rev(genhsh(i)) == i) ensure(rm.rev2hsh(i) == genhsh(i)) ensure(bool(rm.rev2flag(i) & revmap.sidebranchflag) == bool(i & 1)) # append without calling save() explicitly for i in range(5, 12): ensure( rm.append(genhsh(i), sidebranch=(i & 1), path=paths[i], flush=True) == i ) # re-load and verify rm = revmap.revmap(path) ensure(rm.maxrev == 11) for i in range(1, 12): ensure(rm.hsh2rev(genhsh(i)) == i) ensure(rm.rev2hsh(i) == genhsh(i)) ensure(rm.rev2path(i) == paths[i] or paths[i - 1]) ensure(bool(rm.rev2flag(i) & revmap.sidebranchflag) == bool(i & 1)) os.unlink(path) # missing keys ensure(rm.rev2hsh(12) is None) ensure(rm.rev2hsh(0) is None) ensure(rm.rev2hsh(-1) is None) ensure(rm.rev2flag(12) is None) ensure(rm.rev2path(12) is None) ensure(rm.hsh2rev(b'\1' * 20) is None) # illformed hash (not 20 bytes) try: rm.append(b'\0') ensure(False) except Exception: pass def testcorruptformat(): path = gettemppath() # incorrect header with open(path, 'wb') as f: f.write(b'NOT A VALID HEADER') try: revmap.revmap(path) ensure(False) except error.CorruptedFileError: pass # rewrite the file os.unlink(path) rm = revmap.revmap(path) rm.append(genhsh(0), flush=True) rm = revmap.revmap(path) ensure(rm.maxrev == 1) # corrupt the file by appending a byte size = os.stat(path).st_size with open(path, 'ab') as f: f.write(b'\xff') try: revmap.revmap(path) ensure(False) except error.CorruptedFileError: pass # corrupt the file by removing the last byte ensure(size > 0) with open(path, 'wb') as f: f.truncate(size - 1) try: revmap.revmap(path) ensure(False) except error.CorruptedFileError: pass os.unlink(path) def testcopyfrom(): path = gettemppath() rm = revmap.revmap(path) for i in range(1, 10): ensure( rm.append(genhsh(i), sidebranch=(i & 1), path=(b'%d' % (i // 3))) == i ) rm.flush() # copy rm to rm2 rm2 = revmap.revmap() rm2.copyfrom(rm) path2 = gettemppath() rm2.path = path2 rm2.flush() # two files should be the same ensure(len({util.readfile(p) for p in [path, path2]}) == 1) os.unlink(path) os.unlink(path2) class fakefctx: def __init__(self, node, path=None): self._node = node self._path = path def node(self): return self._node def path(self): return self._path def testcontains(): path = gettemppath() rm = revmap.revmap(path) for i in range(1, 5): ensure(rm.append(genhsh(i), sidebranch=(i & 1)) == i) for i in range(1, 5): ensure(((genhsh(i), None) in rm) == ((i & 1) == 0)) ensure((fakefctx(genhsh(i)) in rm) == ((i & 1) == 0)) for i in range(5, 10): ensure(fakefctx(genhsh(i)) not in rm) ensure((genhsh(i), None) not in rm) # "contains" checks paths rm = revmap.revmap() for i in range(1, 5): ensure(rm.append(genhsh(i), path=(b'%d' % (i // 2))) == i) for i in range(1, 5): ensure(fakefctx(genhsh(i), path=(b'%d' % (i // 2))) in rm) ensure(fakefctx(genhsh(i), path=b'a') not in rm) def testlastnode(): path = gettemppath() ensure(revmap.getlastnode(path) is None) rm = revmap.revmap(path) ensure(revmap.getlastnode(path) is None) for i in range(1, 10): hsh = genhsh(i) rm.append(hsh, path=(b'%d' % (i // 2)), flush=True) ensure(revmap.getlastnode(path) == hsh) rm2 = revmap.revmap(path) ensure(rm2.rev2hsh(rm2.maxrev) == hsh) testbasicreadwrite() testcorruptformat() testcopyfrom() testcontains() testlastnode()