Mercurial > hg
view tests/test-remotefilelog-histpack.py @ 51626:865efc020c33 default tip
dirstate: remove the python-side whitelist of allowed matchers
This whitelist is too permissive because it allows matchers that contain
disallowed ones deep inside, for example through `intersectionmatcher`.
It is also too restrictive because it doesn't pass through
some of the matchers we support, such as `patternmatcher`.
It's also unnecessary because unsupported matchers raise
`FallbackError` and we fall back anyway.
Making this change makes more of the tests use rust code path,
and therefore subtly change behavior. For example, rust status
in largefiles repos seems to have strange behavior.
author | Arseniy Alekseyev <aalekseyev@janestreet.com> |
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date | Fri, 26 Apr 2024 19:10:35 +0100 |
parents | d44e3c45f0e4 |
children |
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#!/usr/bin/env python import hashlib import os import random import shutil import stat import struct import sys import tempfile import unittest import silenttestrunner from mercurial.node import sha1nodeconstants 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(), sha1nodeconstants.nullid, sha1nodeconstants.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 = sha1nodeconstants.nullid for i in range(10): node = self.getFakeHash() revisions.append( ( filename, node, lastnode, sha1nodeconstants.nullid, sha1nodeconstants.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 = sha1nodeconstants.nullid linknode = sha1nodeconstants.nullid for j in range(random.randint(1, 100)): node = self.getFakeHash() p1 = sha1nodeconstants.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 == sha1nodeconstants.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 = sha1nodeconstants.nullid for i in range(10): node = self.getFakeHash() revisions.append( ( filename, node, lastnode, sha1nodeconstants.nullid, sha1nodeconstants.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', sha1nodeconstants.nullid, sha1nodeconstants.nullid, sha1nodeconstants.nullid, sha1nodeconstants.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 range(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__)