author | Manuel Jacob <me@manueljacob.de> |
Mon, 29 Jun 2020 15:03:36 +0200 | |
branch | stable |
changeset 45022 | e3b19004087a |
parent 43946 | ac627ed8a911 |
child 45829 | e7a4c018b563 |
permissions | -rw-r--r-- |
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"""This unit test primarily tests parsers.parse_index2(). |
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It also checks certain aspects of the parsers module as a whole. |
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""" |
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from __future__ import absolute_import, print_function |
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import struct |
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import subprocess |
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import sys |
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import unittest |
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from mercurial.node import ( |
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nullid, |
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nullrev, |
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) |
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from mercurial import ( |
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node as nodemod, |
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policy, |
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pycompat, |
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) |
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parsers = policy.importmod('parsers') |
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# original python implementation |
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def gettype(q): |
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return int(q & 0xFFFF) |
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def offset_type(offset, type): |
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return int(int(offset) << 16 | type) |
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indexformatng = ">Qiiiiii20s12x" |
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def py_parseindex(data, inline): |
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s = 64 |
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cache = None |
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index = [] |
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nodemap = {nullid: nullrev} |
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n = off = 0 |
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l = len(data) - s |
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append = index.append |
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if inline: |
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cache = (0, data) |
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while off <= l: |
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e = struct.unpack(indexformatng, data[off : off + s]) |
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nodemap[e[7]] = n |
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append(e) |
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n += 1 |
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if e[1] < 0: |
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break |
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off += e[1] + s |
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else: |
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while off <= l: |
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e = struct.unpack(indexformatng, data[off : off + s]) |
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nodemap[e[7]] = n |
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append(e) |
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n += 1 |
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off += s |
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e = list(index[0]) |
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type = gettype(e[0]) |
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e[0] = offset_type(0, type) |
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index[0] = tuple(e) |
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return index, cache |
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data_inlined = ( |
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b'\x00\x01\x00\x01\x00\x00\x00\x00\x00\x00\x01\x8c' |
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b'\x00\x00\x04\x07\x00\x00\x00\x00\x00\x00\x15\x15\xff\xff\xff' |
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b'\xff\xff\xff\xff\xff\xebG\x97\xb7\x1fB\x04\xcf\x13V\x81\tw\x1b' |
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b'w\xdduR\xda\xc6\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00' |
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b'x\x9c\x9d\x93?O\xc30\x10\xc5\xf7|\x8a\xdb\x9a\xa8m\x06\xd8*\x95' |
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b'\x81B\xa1\xa2\xa2R\xcb\x86Pd\x9a\x0b5$vd_\x04\xfd\xf6\x9c\xff@' |
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b'\x11!\x0b\xd9\xec\xf7\xbbw\xe7gG6\xad6\x04\xdaN\xc0\x92\xa0$)' |
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b'\xb1\x82\xa2\xd1%\x16\xa4\x8b7\xa9\xca\xd4-\xb2Y\x02\xfc\xc9' |
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b'\xcaS\xf9\xaeX\xed\xb6\xd77Q\x02\x83\xd4\x19\xf5--Y\xea\xe1W' |
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b'\xab\xed\x10\xceR\x0f_\xdf\xdf\r\xe1,\xf5\xf0\xcb\xf5 \xceR\x0f' |
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b'_\xdc\x0e\x0e\xc3R\x0f_\xae\x96\x9b!\x9e\xa5\x1e\xbf\xdb,\x06' |
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b'\xc7q\x9a/\x88\x82\xc3B\xea\xb5\xb4TJ\x93\xb6\x82\x0e\xe16\xe6' |
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b'KQ\xdb\xaf\xecG\xa3\xd1 \x01\xd3\x0b_^\xe8\xaa\xa0\xae\xad\xd1' |
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b'&\xbef\x1bz\x08\xb0|\xc9Xz\x06\xf6Z\x91\x90J\xaa\x17\x90\xaa' |
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b'\xd2\xa6\x11$5C\xcf\xba#\xa0\x03\x02*2\x92-\xfc\xb1\x94\xdf\xe2' |
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b'\xae\xb8\'m\x8ey0^\x85\xd3\x82\xb4\xf0`:\x9c\x00\x8a\xfd\x01' |
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b'\xb0\xc6\x86\x8b\xdd\xae\x80\xf3\xa9\x9fd\x16\n\x00R%\x1a\x06' |
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b'\xe9\xd8b\x98\x1d\xf4\xf3+\x9bf\x01\xd8p\x1b\xf3.\xed\x9f^g\xc3' |
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b'^\xd9W81T\xdb\xd5\x04sx|\xf2\xeb\xd6`%?x\xed"\x831\xbf\xf3\xdc' |
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b'b\xeb%gaY\xe1\xad\x9f\xb9f\'1w\xa9\xa5a\x83s\x82J\xb98\xbc4\x8b' |
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b'\x83\x00\x9f$z\xb8#\xa5\xb1\xdf\x98\xd9\xec\x1b\x89O\xe3Ts\x9a4' |
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b'\x17m\x8b\xfc\x8f\xa5\x95\x9a\xfc\xfa\xed,\xe5|\xa1\xfe\x15\xb9' |
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b'\xbc\xb2\x93\x1f\xf2\x95\xff\xdf,\x1a\xc5\xe7\x17*\x93Oz:>\x0e' |
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) |
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data_non_inlined = ( |
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b'\x00\x07e\x12\x00\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff' |
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b'\xff\xff\xff\xff\xd1\xf4\xbb\xb0\xbe\xfc\x13\xbd\x8c\xd3\x9d' |
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b'\x0f\xcd\xd9;\x8c\x07\x8cJ/\x00\x00\x00\x00\x00\x00\x00\x00\x00' |
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b'\x00\x00\x00\x00\x00\x00\x01D\x19\x00\x00\x00\x00\x00\xdf\x00' |
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b'\x00\x01q\x00\x00\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\xff' |
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b'\xff\xff\xff\xc1\x12\xb9\x04\x96\xa4Z1t\x91\xdfsJ\x90\xf0\x9bh' |
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b'\x07l&\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00' |
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b'\x00\x01D\xf8\x00\x00\x00\x00\x01\x1b\x00\x00\x01\xb8\x00\x00' |
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b'\x00\x01\x00\x00\x00\x02\x00\x00\x00\x01\xff\xff\xff\xff\x02\n' |
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b'\x0e\xc6&\xa1\x92\xae6\x0b\x02i\xfe-\xe5\xbao\x05\xd1\xe7\x00' |
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b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01F' |
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b'\x13\x00\x00\x00\x00\x01\xec\x00\x00\x03\x06\x00\x00\x00\x01' |
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b'\x00\x00\x00\x03\x00\x00\x00\x02\xff\xff\xff\xff\x12\xcb\xeby1' |
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b'\xb6\r\x98B\xcb\x07\xbd`\x8f\x92\xd9\xc4\x84\xbdK\x00\x00\x00' |
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b'\x00\x00\x00\x00\x00\x00\x00\x00\x00' |
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def parse_index2(data, inline): |
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index, chunkcache = parsers.parse_index2(data, inline) |
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return list(index), chunkcache |
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def importparsers(hexversion): |
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"""Import mercurial.parsers with the given sys.hexversion.""" |
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# The file parsers.c inspects sys.hexversion to determine the version |
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# of the currently-running Python interpreter, so we monkey-patch |
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# sys.hexversion to simulate using different versions. |
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code = ( |
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"import sys; sys.hexversion=%s; " |
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"import mercurial.cext.parsers" % hexversion |
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cmd = "python -c \"%s\"" % code |
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# We need to do these tests inside a subprocess because parser.c's |
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# version-checking code happens inside the module init function, and |
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# when using reload() to reimport an extension module, "The init function |
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# of extension modules is not called a second time" |
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# (from http://docs.python.org/2/library/functions.html?#reload). |
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p = subprocess.Popen( |
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cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT |
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return p.communicate() # returns stdout, stderr |
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def hexfailmsg(testnumber, hexversion, stdout, expected): |
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try: |
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hexstring = hex(hexversion) |
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except TypeError: |
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hexstring = None |
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return ( |
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"FAILED: version test #%s with Python %s and patched " |
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"sys.hexversion %r (%r):\n Expected %s but got:\n-->'%s'\n" |
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% ( |
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testnumber, |
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sys.version_info, |
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hexversion, |
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hexstring, |
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expected, |
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stdout, |
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def makehex(major, minor, micro): |
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return int("%x%02x%02x00" % (major, minor, micro), 16) |
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class parseindex2tests(unittest.TestCase): |
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def assertversionokay(self, testnumber, hexversion): |
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stdout, stderr = importparsers(hexversion) |
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self.assertFalse( |
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stdout, hexfailmsg(testnumber, hexversion, stdout, 'no stdout') |
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) |
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def assertversionfail(self, testnumber, hexversion): |
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stdout, stderr = importparsers(hexversion) |
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# We include versionerrortext to distinguish from other ImportErrors. |
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errtext = b"ImportError: %s" % pycompat.sysbytes( |
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parsers.versionerrortext |
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self.assertIn( |
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errtext, |
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stdout, |
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hexfailmsg( |
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testnumber, |
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hexversion, |
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stdout, |
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expected="stdout to contain %r" % errtext, |
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) |
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def testversiondetection(self): |
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"""Check the version-detection logic when importing parsers.""" |
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# Only test the version-detection logic if it is present. |
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try: |
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parsers.versionerrortext |
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except AttributeError: |
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return |
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198 |
info = sys.version_info |
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major, minor, micro = info[0], info[1], info[2] |
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# Test same major-minor versions. |
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self.assertversionokay(1, makehex(major, minor, micro)) |
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self.assertversionokay(2, makehex(major, minor, micro + 1)) |
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# Test different major-minor versions. |
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self.assertversionfail(3, makehex(major + 1, minor, micro)) |
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self.assertversionfail(4, makehex(major, minor + 1, micro)) |
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self.assertversionfail(5, "'foo'") |
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def testbadargs(self): |
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# Check that parse_index2() raises TypeError on bad arguments. |
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with self.assertRaises(TypeError): |
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parse_index2(0, True) |
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parse_index2: fix crash on bad argument type (issue4110)
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def testparseindexfile(self): |
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# Check parsers.parse_index2() on an index file against the |
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# original Python implementation of parseindex, both with and |
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# without inlined data. |
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tests: rename variables in revlog index parse test for clarity
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want = py_parseindex(data_inlined, True) |
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got = parse_index2(data_inlined, True) |
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self.assertEqual(want, got) # inline data |
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want = py_parseindex(data_non_inlined, False) |
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got = parse_index2(data_non_inlined, False) |
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self.assertEqual(want, got) # no inline data |
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ix = parsers.parse_index2(data_inlined, True)[0] |
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for i, r in enumerate(ix): |
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if r[7] == nullid: |
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i = -1 |
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try: |
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self.assertEqual( |
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ix[r[7]], |
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i, |
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'Reverse lookup inconsistent for %r' % nodemod.hex(r[7]), |
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) |
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except TypeError: |
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# pure version doesn't support this |
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break |
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parsers: use base-16 trie for faster node->rev mapping
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tests: add test coverage for revlogindex[-1] which was previously missing
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def testminusone(self): |
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want = (0, 0, 0, -1, -1, -1, -1, nullid) |
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index, junk = parsers.parse_index2(data_inlined, True) |
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got = index[-1] |
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self.assertEqual(want, got) # inline data |
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index, junk = parsers.parse_index2(data_non_inlined, False) |
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got = index[-1] |
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self.assertEqual(want, got) # no inline data |
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cext-revlog: fixed __delitem__ for uninitialized nodetree
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def testdelitemwithoutnodetree(self): |
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index, _junk = parsers.parse_index2(data_non_inlined, False) |
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def hexrev(rev): |
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if rev == nullrev: |
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return b'\xff\xff\xff\xff' |
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else: |
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return nodemod.bin('%08x' % rev) |
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def appendrev(p1, p2=nullrev): |
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# node won't matter for this test, let's just make sure |
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# they don't collide. Other data don't matter either. |
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node = hexrev(p1) + hexrev(p2) + b'.' * 12 |
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index.append((0, 0, 12, 1, 34, p1, p2, node)) |
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appendrev(4) |
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appendrev(5) |
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appendrev(6) |
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self.assertEqual(len(index), 7) |
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del index[1:-1] |
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# assertions that failed before correction |
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self.assertEqual(len(index), 1) # was 4 |
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headrevs = getattr(index, 'headrevs', None) |
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if headrevs is not None: # not implemented in pure |
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self.assertEqual(index.headrevs(), [0]) # gave ValueError |
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if __name__ == '__main__': |
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import silenttestrunner |
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silenttestrunner.main(__name__) |