Mercurial > hg
view tests/test-fastannotate-revmap.py @ 40790:f07d4f94f098 stable
rebase: preserve working copy when redoing in-mem rebase on disk
When in-memory rebase runs into conflicts, we retry it on disk. But
before we do that, we abort the in-memory rebase. That is done because
even though it's mostly in memory, there are still a few state files
written (e.g. the merge state). We should make it not write those
files so we don't need to abort, but for the stable branch, let's
explicitly clear the state we need to clear instead of running the
usual abort code.
Differential Revision: https://phab.mercurial-scm.org/D5356
author | Martin von Zweigbergk <martinvonz@google.com> |
---|---|
date | Fri, 30 Nov 2018 16:21:37 -0800 |
parents | aa95fd0257df |
children | 5fd63bca43a4 |
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from __future__ import absolute_import, print_function import os import tempfile from mercurial import ( pycompat, util, ) from hgext.fastannotate import error, revmap if pycompat.ispy3: xrange = range def genhsh(i): return chr(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 xrange(5): ensure(rm.rev2hsh(i) is None) ensure(rm.hsh2rev(b'\0' * 20) is None) paths = ['', 'a', None, 'b', 'b', 'c', 'c', None, 'a', 'b', 'a', 'a'] for i in xrange(1, 5): ensure(rm.append(genhsh(i), sidebranch=(i & 1), path=paths[i]) == i) ensure(rm.maxrev == 4) for i in xrange(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 xrange(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 xrange(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 xrange(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, 'w') 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, 'a') as f: f.write('\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, 'w') 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 xrange(1, 10): ensure(rm.append(genhsh(i), sidebranch=(i & 1), path=str(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(set(util.readfile(p) for p in [path, path2])) == 1) os.unlink(path) os.unlink(path2) class fakefctx(object): 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 xrange(1, 5): ensure(rm.append(genhsh(i), sidebranch=(i & 1)) == i) for i in xrange(1, 5): ensure(((genhsh(i), None) in rm) == ((i & 1) == 0)) ensure((fakefctx(genhsh(i)) in rm) == ((i & 1) == 0)) for i in xrange(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 xrange(1, 5): ensure(rm.append(genhsh(i), path=str(i // 2)) == i) for i in xrange(1, 5): ensure(fakefctx(genhsh(i), path=str(i // 2)) in rm) ensure(fakefctx(genhsh(i), path='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 xrange(1, 10): hsh = genhsh(i) rm.append(hsh, path=str(i // 2), flush=True) ensure(revmap.getlastnode(path) == hsh) rm2 = revmap.revmap(path) ensure(rm2.rev2hsh(rm2.maxrev) == hsh) testbasicreadwrite() testcorruptformat() testcopyfrom() testcontains() testlastnode()