Mercurial > hg
view tests/test-remotefilelog-histpack.py @ 44909:d452acc8cce8 stable
flags: account for flag change when tracking rename relevant to merge
There are some logic filtering rename to the one relevant to the merge. That
logic was oblivious of flag change, leading to exec flag being dropped when
merged with a renamed.
There are two others bugs affecting this scenario. This patch fix the was where
there is not modification involved except for the flag change. Fixes for the
other bug are coming in later changesets.
Differential Revision: https://phab.mercurial-scm.org/D8531
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Sat, 16 May 2020 20:37:56 +0200 |
parents | 37458d8b0c1e |
children | c102b704edb5 |
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#!/usr/bin/env python from __future__ import absolute_import import hashlib import os import random import shutil import stat import struct import sys import tempfile import unittest import silenttestrunner from mercurial.node import nullid from mercurial import ( pycompat, ui as uimod, ) # Load the local remotefilelog, not the system one sys.path[0:0] = [os.path.join(os.path.dirname(__file__), '..')] from hgext.remotefilelog import ( basepack, historypack, ) class histpacktests(unittest.TestCase): def setUp(self): self.tempdirs = [] def tearDown(self): for d in self.tempdirs: shutil.rmtree(d) def makeTempDir(self): tempdir = tempfile.mkdtemp() self.tempdirs.append(tempdir) return pycompat.fsencode(tempdir) def getHash(self, content): return hashlib.sha1(content).digest() def getFakeHash(self): return b''.join( pycompat.bytechr(random.randint(0, 255)) for _ in range(20) ) def createPack(self, revisions=None): """Creates and returns a historypack containing the specified revisions. `revisions` is a list of tuples, where each tuple contains a filanem, node, p1node, p2node, and linknode. """ if revisions is None: revisions = [ ( b"filename", self.getFakeHash(), nullid, nullid, self.getFakeHash(), None, ) ] packdir = pycompat.fsencode(self.makeTempDir()) packer = historypack.mutablehistorypack(uimod.ui(), packdir, version=2) for filename, node, p1, p2, linknode, copyfrom in revisions: packer.add(filename, node, p1, p2, linknode, copyfrom) path = packer.close() return historypack.historypack(path) def testAddSingle(self): """Test putting a single entry into a pack and reading it out. """ filename = b"foo" node = self.getFakeHash() p1 = self.getFakeHash() p2 = self.getFakeHash() linknode = self.getFakeHash() revisions = [(filename, node, p1, p2, linknode, None)] pack = self.createPack(revisions) actual = pack.getancestors(filename, node)[node] self.assertEqual(p1, actual[0]) self.assertEqual(p2, actual[1]) self.assertEqual(linknode, actual[2]) def testAddMultiple(self): """Test putting multiple unrelated revisions into a pack and reading them out. """ revisions = [] for i in range(10): filename = b"foo-%d" % i node = self.getFakeHash() p1 = self.getFakeHash() p2 = self.getFakeHash() linknode = self.getFakeHash() revisions.append((filename, node, p1, p2, linknode, None)) pack = self.createPack(revisions) for filename, node, p1, p2, linknode, copyfrom in revisions: actual = pack.getancestors(filename, node)[node] self.assertEqual(p1, actual[0]) self.assertEqual(p2, actual[1]) self.assertEqual(linknode, actual[2]) self.assertEqual(copyfrom, actual[3]) def testAddAncestorChain(self): """Test putting multiple revisions in into a pack and read the ancestor chain. """ revisions = [] filename = b"foo" lastnode = nullid for i in range(10): node = self.getFakeHash() revisions.append((filename, node, lastnode, nullid, nullid, None)) lastnode = node # revisions must be added in topological order, newest first revisions = list(reversed(revisions)) pack = self.createPack(revisions) # Test that the chain has all the entries ancestors = pack.getancestors(revisions[0][0], revisions[0][1]) for filename, node, p1, p2, linknode, copyfrom in revisions: ap1, ap2, alinknode, acopyfrom = ancestors[node] self.assertEqual(ap1, p1) self.assertEqual(ap2, p2) self.assertEqual(alinknode, linknode) self.assertEqual(acopyfrom, copyfrom) def testPackMany(self): """Pack many related and unrelated ancestors. """ # Build a random pack file allentries = {} ancestorcounts = {} revisions = [] random.seed(0) for i in range(100): filename = b"filename-%d" % i entries = [] p2 = nullid linknode = nullid for j in range(random.randint(1, 100)): node = self.getFakeHash() p1 = nullid if len(entries) > 0: p1 = entries[random.randint(0, len(entries) - 1)] entries.append(node) revisions.append((filename, node, p1, p2, linknode, None)) allentries[(filename, node)] = (p1, p2, linknode) if p1 == nullid: ancestorcounts[(filename, node)] = 1 else: newcount = ancestorcounts[(filename, p1)] + 1 ancestorcounts[(filename, node)] = newcount # Must add file entries in reverse topological order revisions = list(reversed(revisions)) pack = self.createPack(revisions) # Verify the pack contents for (filename, node) in allentries: ancestors = pack.getancestors(filename, node) self.assertEqual(ancestorcounts[(filename, node)], len(ancestors)) for anode, (ap1, ap2, alinknode, copyfrom) in ancestors.items(): ep1, ep2, elinknode = allentries[(filename, anode)] self.assertEqual(ap1, ep1) self.assertEqual(ap2, ep2) self.assertEqual(alinknode, elinknode) self.assertEqual(copyfrom, None) def testGetNodeInfo(self): revisions = [] filename = b"foo" lastnode = nullid for i in range(10): node = self.getFakeHash() revisions.append((filename, node, lastnode, nullid, nullid, None)) lastnode = node pack = self.createPack(revisions) # Test that getnodeinfo returns the expected results for filename, node, p1, p2, linknode, copyfrom in revisions: ap1, ap2, alinknode, acopyfrom = pack.getnodeinfo(filename, node) self.assertEqual(ap1, p1) self.assertEqual(ap2, p2) self.assertEqual(alinknode, linknode) self.assertEqual(acopyfrom, copyfrom) def testGetMissing(self): """Test the getmissing() api. """ revisions = [] filename = b"foo" for i in range(10): node = self.getFakeHash() p1 = self.getFakeHash() p2 = self.getFakeHash() linknode = self.getFakeHash() revisions.append((filename, node, p1, p2, linknode, None)) pack = self.createPack(revisions) missing = pack.getmissing([(filename, revisions[0][1])]) self.assertFalse(missing) missing = pack.getmissing( [(filename, revisions[0][1]), (filename, revisions[1][1])] ) self.assertFalse(missing) fakenode = self.getFakeHash() missing = pack.getmissing( [(filename, revisions[0][1]), (filename, fakenode)] ) self.assertEqual(missing, [(filename, fakenode)]) # Test getmissing on a non-existant filename missing = pack.getmissing([(b"bar", fakenode)]) self.assertEqual(missing, [(b"bar", fakenode)]) def testAddThrows(self): pack = self.createPack() try: pack.add(b'filename', nullid, nullid, nullid, nullid, None) self.assertTrue(False, "historypack.add should throw") except RuntimeError: pass def testBadVersionThrows(self): pack = self.createPack() path = pack.path + b'.histpack' with open(path, 'rb') as f: raw = f.read() raw = struct.pack('!B', 255) + raw[1:] os.chmod(path, os.stat(path).st_mode | stat.S_IWRITE) with open(path, 'wb+') as f: f.write(raw) try: historypack.historypack(pack.path) self.assertTrue(False, "bad version number should have thrown") except RuntimeError: pass def testLargePack(self): """Test creating and reading from a large pack with over X entries. This causes it to use a 2^16 fanout table instead.""" total = basepack.SMALLFANOUTCUTOFF + 1 revisions = [] for i in pycompat.xrange(total): filename = b"foo-%d" % i node = self.getFakeHash() p1 = self.getFakeHash() p2 = self.getFakeHash() linknode = self.getFakeHash() revisions.append((filename, node, p1, p2, linknode, None)) pack = self.createPack(revisions) self.assertEqual(pack.params.fanoutprefix, basepack.LARGEFANOUTPREFIX) for filename, node, p1, p2, linknode, copyfrom in revisions: actual = pack.getancestors(filename, node)[node] self.assertEqual(p1, actual[0]) self.assertEqual(p2, actual[1]) self.assertEqual(linknode, actual[2]) self.assertEqual(copyfrom, actual[3]) # TODO: # histpack store: # - repack two packs into one if __name__ == '__main__': if pycompat.iswindows: sys.exit(80) # Skip on Windows silenttestrunner.main(__name__)