Mercurial > hg
view tests/test-manifest.py @ 30449:a31634336471
drawdag: update test repos by drawing the changelog DAG in ASCII
Currently, we have "debugbuilddag" which is a powerful tool to build test
cases but not intuitive. We may end up running "hg log" in the test to make
the test more readable.
This patch adds a "drawdag" extension with a "debugdrawdag" command for
similar testing purpose. Unlike the cryptic "debugbuilddag" command, it
reads an ASCII graph that is intuitive to human, so the test case can be
more readable.
Unlike "debugbuilddag", "drawdag" does not require an empty repo. So it can
be used to add new changesets to an existing repo.
Since the "drawdag" logic is not that trivial and only makes sense for
testing purpose, the extension is added to the "tests" directory, to make
the core logic clean. If we find it useful (for example, to demonstrate
cases and help user understand some cases) and want to ship it by default in
the future, we can move it to a ship-by-default "debugdrawdag" at that time.
author | Jun Wu <quark@fb.com> |
---|---|
date | Wed, 09 Nov 2016 16:01:34 +0000 |
parents | b9ed5a88710c |
children | 959ebff3505a |
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from __future__ import absolute_import import binascii import itertools import silenttestrunner import unittest from mercurial import ( manifest as manifestmod, match as matchmod, ) EMTPY_MANIFEST = '' EMTPY_MANIFEST_V2 = '\0\n' HASH_1 = '1' * 40 BIN_HASH_1 = binascii.unhexlify(HASH_1) HASH_2 = 'f' * 40 BIN_HASH_2 = binascii.unhexlify(HASH_2) HASH_3 = '1234567890abcdef0987654321deadbeef0fcafe' BIN_HASH_3 = binascii.unhexlify(HASH_3) A_SHORT_MANIFEST = ( 'bar/baz/qux.py\0%(hash2)s%(flag2)s\n' 'foo\0%(hash1)s%(flag1)s\n' ) % {'hash1': HASH_1, 'flag1': '', 'hash2': HASH_2, 'flag2': 'l', } # Same data as A_SHORT_MANIFEST A_SHORT_MANIFEST_V2 = ( '\0\n' '\x00bar/baz/qux.py\0%(flag2)s\n%(hash2)s\n' '\x00foo\0%(flag1)s\n%(hash1)s\n' ) % {'hash1': BIN_HASH_1, 'flag1': '', 'hash2': BIN_HASH_2, 'flag2': 'l', } # Same data as A_SHORT_MANIFEST A_METADATA_MANIFEST = ( '\0foo\0bar\n' '\x00bar/baz/qux.py\0%(flag2)s\0foo\0bar\n%(hash2)s\n' # flag and metadata '\x00foo\0%(flag1)s\0foo\n%(hash1)s\n' # no flag, but metadata ) % {'hash1': BIN_HASH_1, 'flag1': '', 'hash2': BIN_HASH_2, 'flag2': 'l', } A_STEM_COMPRESSED_MANIFEST = ( '\0\n' '\x00bar/baz/qux.py\0%(flag2)s\n%(hash2)s\n' '\x04qux/foo.py\0%(flag1)s\n%(hash1)s\n' # simple case of 4 stem chars '\x0az.py\0%(flag1)s\n%(hash1)s\n' # tricky newline = 10 stem characters '\x00%(verylongdir)sx/x\0\n%(hash1)s\n' '\xffx/y\0\n%(hash2)s\n' # more than 255 stem chars ) % {'hash1': BIN_HASH_1, 'flag1': '', 'hash2': BIN_HASH_2, 'flag2': 'l', 'verylongdir': 255 * 'x', } A_DEEPER_MANIFEST = ( 'a/b/c/bar.py\0%(hash3)s%(flag1)s\n' 'a/b/c/bar.txt\0%(hash1)s%(flag1)s\n' 'a/b/c/foo.py\0%(hash3)s%(flag1)s\n' 'a/b/c/foo.txt\0%(hash2)s%(flag2)s\n' 'a/b/d/baz.py\0%(hash3)s%(flag1)s\n' 'a/b/d/qux.py\0%(hash1)s%(flag2)s\n' 'a/b/d/ten.txt\0%(hash3)s%(flag2)s\n' 'a/b/dog.py\0%(hash3)s%(flag1)s\n' 'a/b/fish.py\0%(hash2)s%(flag1)s\n' 'a/c/london.py\0%(hash3)s%(flag2)s\n' 'a/c/paper.txt\0%(hash2)s%(flag2)s\n' 'a/c/paris.py\0%(hash2)s%(flag1)s\n' 'a/d/apple.py\0%(hash3)s%(flag1)s\n' 'a/d/pizza.py\0%(hash3)s%(flag2)s\n' 'a/green.py\0%(hash1)s%(flag2)s\n' 'a/purple.py\0%(hash2)s%(flag1)s\n' 'app.py\0%(hash3)s%(flag1)s\n' 'readme.txt\0%(hash2)s%(flag1)s\n' ) % {'hash1': HASH_1, 'flag1': '', 'hash2': HASH_2, 'flag2': 'l', 'hash3': HASH_3, } HUGE_MANIFEST_ENTRIES = 200001 A_HUGE_MANIFEST = ''.join(sorted( 'file%d\0%s%s\n' % (i, h, f) for i, h, f in itertools.izip(xrange(200001), itertools.cycle((HASH_1, HASH_2)), itertools.cycle(('', 'x', 'l'))))) class basemanifesttests(object): def parsemanifest(self, text): raise NotImplementedError('parsemanifest not implemented by test case') def assertIn(self, thing, container, msg=None): # assertIn new in 2.7, use it if available, otherwise polyfill sup = getattr(unittest.TestCase, 'assertIn', False) if sup: return sup(self, thing, container, msg=msg) if not msg: msg = 'Expected %r in %r' % (thing, container) self.assert_(thing in container, msg) def testEmptyManifest(self): m = self.parsemanifest(EMTPY_MANIFEST) self.assertEqual(0, len(m)) self.assertEqual([], list(m)) def testEmptyManifestv2(self): m = self.parsemanifest(EMTPY_MANIFEST_V2) self.assertEqual(0, len(m)) self.assertEqual([], list(m)) def testManifest(self): m = self.parsemanifest(A_SHORT_MANIFEST) self.assertEqual(['bar/baz/qux.py', 'foo'], list(m)) self.assertEqual(BIN_HASH_2, m['bar/baz/qux.py']) self.assertEqual('l', m.flags('bar/baz/qux.py')) self.assertEqual(BIN_HASH_1, m['foo']) self.assertEqual('', m.flags('foo')) self.assertRaises(KeyError, lambda : m['wat']) def testParseManifestV2(self): m1 = self.parsemanifest(A_SHORT_MANIFEST) m2 = self.parsemanifest(A_SHORT_MANIFEST_V2) # Should have same content as A_SHORT_MANIFEST self.assertEqual(m1.text(), m2.text()) def testParseManifestMetadata(self): # Metadata is for future-proofing and should be accepted but ignored m = self.parsemanifest(A_METADATA_MANIFEST) self.assertEqual(A_SHORT_MANIFEST, m.text()) def testParseManifestStemCompression(self): m = self.parsemanifest(A_STEM_COMPRESSED_MANIFEST) self.assertIn('bar/baz/qux.py', m) self.assertIn('bar/qux/foo.py', m) self.assertIn('bar/qux/foz.py', m) self.assertIn(256 * 'x' + '/x', m) self.assertIn(256 * 'x' + '/y', m) self.assertEqual(A_STEM_COMPRESSED_MANIFEST, m.text(usemanifestv2=True)) def testTextV2(self): m1 = self.parsemanifest(A_SHORT_MANIFEST) v2text = m1.text(usemanifestv2=True) self.assertEqual(A_SHORT_MANIFEST_V2, v2text) def testSetItem(self): want = BIN_HASH_1 m = self.parsemanifest(EMTPY_MANIFEST) m['a'] = want self.assertIn('a', m) self.assertEqual(want, m['a']) self.assertEqual('a\0' + HASH_1 + '\n', m.text()) m = self.parsemanifest(A_SHORT_MANIFEST) m['a'] = want self.assertEqual(want, m['a']) self.assertEqual('a\0' + HASH_1 + '\n' + A_SHORT_MANIFEST, m.text()) def testSetFlag(self): want = 'x' m = self.parsemanifest(EMTPY_MANIFEST) # first add a file; a file-less flag makes no sense m['a'] = BIN_HASH_1 m.setflag('a', want) self.assertEqual(want, m.flags('a')) self.assertEqual('a\0' + HASH_1 + want + '\n', m.text()) m = self.parsemanifest(A_SHORT_MANIFEST) # first add a file; a file-less flag makes no sense m['a'] = BIN_HASH_1 m.setflag('a', want) self.assertEqual(want, m.flags('a')) self.assertEqual('a\0' + HASH_1 + want + '\n' + A_SHORT_MANIFEST, m.text()) def testCopy(self): m = self.parsemanifest(A_SHORT_MANIFEST) m['a'] = BIN_HASH_1 m2 = m.copy() del m del m2 # make sure we don't double free() anything def testCompaction(self): unhex = binascii.unhexlify h1, h2 = unhex(HASH_1), unhex(HASH_2) m = self.parsemanifest(A_SHORT_MANIFEST) m['alpha'] = h1 m['beta'] = h2 del m['foo'] want = 'alpha\0%s\nbar/baz/qux.py\0%sl\nbeta\0%s\n' % ( HASH_1, HASH_2, HASH_2) self.assertEqual(want, m.text()) self.assertEqual(3, len(m)) self.assertEqual(['alpha', 'bar/baz/qux.py', 'beta'], list(m)) self.assertEqual(h1, m['alpha']) self.assertEqual(h2, m['bar/baz/qux.py']) self.assertEqual(h2, m['beta']) self.assertEqual('', m.flags('alpha')) self.assertEqual('l', m.flags('bar/baz/qux.py')) self.assertEqual('', m.flags('beta')) self.assertRaises(KeyError, lambda : m['foo']) def testSetGetNodeSuffix(self): clean = self.parsemanifest(A_SHORT_MANIFEST) m = self.parsemanifest(A_SHORT_MANIFEST) h = m['foo'] f = m.flags('foo') want = h + 'a' # Merge code wants to set 21-byte fake hashes at times m['foo'] = want self.assertEqual(want, m['foo']) self.assertEqual([('bar/baz/qux.py', BIN_HASH_2), ('foo', BIN_HASH_1 + 'a')], list(m.iteritems())) # Sometimes it even tries a 22-byte fake hash, but we can # return 21 and it'll work out m['foo'] = want + '+' self.assertEqual(want, m['foo']) # make sure the suffix survives a copy match = matchmod.match('', '', ['re:foo']) m2 = m.matches(match) self.assertEqual(want, m2['foo']) self.assertEqual(1, len(m2)) m2 = m.copy() self.assertEqual(want, m2['foo']) # suffix with iteration self.assertEqual([('bar/baz/qux.py', BIN_HASH_2), ('foo', want)], list(m.iteritems())) # shows up in diff self.assertEqual({'foo': ((want, f), (h, ''))}, m.diff(clean)) self.assertEqual({'foo': ((h, ''), (want, f))}, clean.diff(m)) def testMatchException(self): m = self.parsemanifest(A_SHORT_MANIFEST) match = matchmod.match('', '', ['re:.*']) def filt(path): if path == 'foo': assert False return True match.matchfn = filt self.assertRaises(AssertionError, m.matches, match) def testRemoveItem(self): m = self.parsemanifest(A_SHORT_MANIFEST) del m['foo'] self.assertRaises(KeyError, lambda : m['foo']) self.assertEqual(1, len(m)) self.assertEqual(1, len(list(m))) # now restore and make sure everything works right m['foo'] = 'a' * 20 self.assertEqual(2, len(m)) self.assertEqual(2, len(list(m))) def testManifestDiff(self): MISSING = (None, '') addl = 'z-only-in-left\0' + HASH_1 + '\n' addr = 'z-only-in-right\0' + HASH_2 + 'x\n' left = self.parsemanifest( A_SHORT_MANIFEST.replace(HASH_1, HASH_3 + 'x') + addl) right = self.parsemanifest(A_SHORT_MANIFEST + addr) want = { 'foo': ((BIN_HASH_3, 'x'), (BIN_HASH_1, '')), 'z-only-in-left': ((BIN_HASH_1, ''), MISSING), 'z-only-in-right': (MISSING, (BIN_HASH_2, 'x')), } self.assertEqual(want, left.diff(right)) want = { 'bar/baz/qux.py': (MISSING, (BIN_HASH_2, 'l')), 'foo': (MISSING, (BIN_HASH_3, 'x')), 'z-only-in-left': (MISSING, (BIN_HASH_1, '')), } self.assertEqual(want, self.parsemanifest(EMTPY_MANIFEST).diff(left)) want = { 'bar/baz/qux.py': ((BIN_HASH_2, 'l'), MISSING), 'foo': ((BIN_HASH_3, 'x'), MISSING), 'z-only-in-left': ((BIN_HASH_1, ''), MISSING), } self.assertEqual(want, left.diff(self.parsemanifest(EMTPY_MANIFEST))) copy = right.copy() del copy['z-only-in-right'] del right['foo'] want = { 'foo': (MISSING, (BIN_HASH_1, '')), 'z-only-in-right': ((BIN_HASH_2, 'x'), MISSING), } self.assertEqual(want, right.diff(copy)) short = self.parsemanifest(A_SHORT_MANIFEST) pruned = short.copy() del pruned['foo'] want = { 'foo': ((BIN_HASH_1, ''), MISSING), } self.assertEqual(want, short.diff(pruned)) want = { 'foo': (MISSING, (BIN_HASH_1, '')), } self.assertEqual(want, pruned.diff(short)) want = { 'bar/baz/qux.py': None, 'foo': (MISSING, (BIN_HASH_1, '')), } self.assertEqual(want, pruned.diff(short, True)) def testReversedLines(self): backwards = ''.join( l + '\n' for l in reversed(A_SHORT_MANIFEST.split('\n')) if l) try: self.parsemanifest(backwards) self.fail('Should have raised ValueError') except ValueError as v: self.assertIn('Manifest lines not in sorted order.', str(v)) def testNoTerminalNewline(self): try: self.parsemanifest(A_SHORT_MANIFEST + 'wat') self.fail('Should have raised ValueError') except ValueError as v: self.assertIn('Manifest did not end in a newline.', str(v)) def testNoNewLineAtAll(self): try: self.parsemanifest('wat') self.fail('Should have raised ValueError') except ValueError as v: self.assertIn('Manifest did not end in a newline.', str(v)) def testHugeManifest(self): m = self.parsemanifest(A_HUGE_MANIFEST) self.assertEqual(HUGE_MANIFEST_ENTRIES, len(m)) self.assertEqual(len(m), len(list(m))) def testMatchesMetadata(self): '''Tests matches() for a few specific files to make sure that both the set of files as well as their flags and nodeids are correct in the resulting manifest.''' m = self.parsemanifest(A_HUGE_MANIFEST) match = matchmod.match('/', '', ['file1', 'file200', 'file300'], exact=True) m2 = m.matches(match) w = ('file1\0%sx\n' 'file200\0%sl\n' 'file300\0%s\n') % (HASH_2, HASH_1, HASH_1) self.assertEqual(w, m2.text()) def testMatchesNonexistentFile(self): '''Tests matches() for a small set of specific files, including one nonexistent file to make sure in only matches against existing files. ''' m = self.parsemanifest(A_DEEPER_MANIFEST) match = matchmod.match('/', '', ['a/b/c/bar.txt', 'a/b/d/qux.py', 'readme.txt', 'nonexistent'], exact=True) m2 = m.matches(match) self.assertEqual( ['a/b/c/bar.txt', 'a/b/d/qux.py', 'readme.txt'], m2.keys()) def testMatchesNonexistentDirectory(self): '''Tests matches() for a relpath match on a directory that doesn't actually exist.''' m = self.parsemanifest(A_DEEPER_MANIFEST) match = matchmod.match('/', '', ['a/f'], default='relpath') m2 = m.matches(match) self.assertEqual([], m2.keys()) def testMatchesExactLarge(self): '''Tests matches() for files matching a large list of exact files. ''' m = self.parsemanifest(A_HUGE_MANIFEST) flist = m.keys()[80:300] match = matchmod.match('/', '', flist, exact=True) m2 = m.matches(match) self.assertEqual(flist, m2.keys()) def testMatchesFull(self): '''Tests matches() for what should be a full match.''' m = self.parsemanifest(A_DEEPER_MANIFEST) match = matchmod.match('/', '', ['']) m2 = m.matches(match) self.assertEqual(m.keys(), m2.keys()) def testMatchesDirectory(self): '''Tests matches() on a relpath match on a directory, which should match against all files within said directory.''' m = self.parsemanifest(A_DEEPER_MANIFEST) match = matchmod.match('/', '', ['a/b'], default='relpath') m2 = m.matches(match) self.assertEqual([ 'a/b/c/bar.py', 'a/b/c/bar.txt', 'a/b/c/foo.py', 'a/b/c/foo.txt', 'a/b/d/baz.py', 'a/b/d/qux.py', 'a/b/d/ten.txt', 'a/b/dog.py', 'a/b/fish.py'], m2.keys()) def testMatchesExactPath(self): '''Tests matches() on an exact match on a directory, which should result in an empty manifest because you can't perform an exact match against a directory.''' m = self.parsemanifest(A_DEEPER_MANIFEST) match = matchmod.match('/', '', ['a/b'], exact=True) m2 = m.matches(match) self.assertEqual([], m2.keys()) def testMatchesCwd(self): '''Tests matches() on a relpath match with the current directory ('.') when not in the root directory.''' m = self.parsemanifest(A_DEEPER_MANIFEST) match = matchmod.match('/', 'a/b', ['.'], default='relpath') m2 = m.matches(match) self.assertEqual([ 'a/b/c/bar.py', 'a/b/c/bar.txt', 'a/b/c/foo.py', 'a/b/c/foo.txt', 'a/b/d/baz.py', 'a/b/d/qux.py', 'a/b/d/ten.txt', 'a/b/dog.py', 'a/b/fish.py'], m2.keys()) def testMatchesWithPattern(self): '''Tests matches() for files matching a pattern that reside deeper than the specified directory.''' m = self.parsemanifest(A_DEEPER_MANIFEST) match = matchmod.match('/', '', ['a/b/*/*.txt']) m2 = m.matches(match) self.assertEqual( ['a/b/c/bar.txt', 'a/b/c/foo.txt', 'a/b/d/ten.txt'], m2.keys()) class testmanifestdict(unittest.TestCase, basemanifesttests): def parsemanifest(self, text): return manifestmod.manifestdict(text) class testtreemanifest(unittest.TestCase, basemanifesttests): def parsemanifest(self, text): return manifestmod.treemanifest('', text) if __name__ == '__main__': silenttestrunner.main(__name__)