dirstate-v2: no longer register the data-file during transaction
If the data file change during the transaction, we cannot truncate it.
The content of the file itself is fine as it will get backed up at the same time
as the docket.
Leaving the trailing data at the end of failed transaction is fine. The
dirstate-v2 format supports it. The dead data will simply we written over if
necessary.
import unittest
from mercurial import encoding
class IsasciistrTest(unittest.TestCase):
asciistrs = [
b'a',
b'ab',
b'abc',
b'abcd',
b'abcde',
b'abcdefghi',
b'abcd\0fghi',
]
def testascii(self):
for s in self.asciistrs:
self.assertTrue(encoding.isasciistr(s))
def testnonasciichar(self):
for s in self.asciistrs:
for i in range(len(s)):
t = bytearray(s)
t[i] |= 0x80
self.assertFalse(encoding.isasciistr(bytes(t)))
class LocalEncodingTest(unittest.TestCase):
def testasciifastpath(self):
s = b'\0' * 100
self.assertTrue(s is encoding.tolocal(s))
self.assertTrue(s is encoding.fromlocal(s))
class Utf8bEncodingTest(unittest.TestCase):
def setUp(self):
self.origencoding = encoding.encoding
def tearDown(self):
encoding.encoding = self.origencoding
def testasciifastpath(self):
s = b'\0' * 100
self.assertTrue(s is encoding.toutf8b(s))
self.assertTrue(s is encoding.fromutf8b(s))
def testlossylatin(self):
encoding.encoding = b'ascii'
s = u'\xc0'.encode('utf-8')
l = encoding.tolocal(s)
self.assertEqual(l, b'?') # lossy
self.assertEqual(s, encoding.toutf8b(l)) # utf8 sequence preserved
def testlosslesslatin(self):
encoding.encoding = b'latin-1'
s = u'\xc0'.encode('utf-8')
l = encoding.tolocal(s)
self.assertEqual(l, b'\xc0') # lossless
self.assertEqual(s, encoding.toutf8b(l)) # convert back to utf-8
def testlossy0xed(self):
encoding.encoding = b'euc-kr' # U+Dxxx Hangul
s = u'\ud1bc\xc0'.encode('utf-8')
l = encoding.tolocal(s)
self.assertIn(b'\xed', l)
self.assertTrue(l.endswith(b'?')) # lossy
self.assertEqual(s, encoding.toutf8b(l)) # utf8 sequence preserved
def testlossless0xed(self):
encoding.encoding = b'euc-kr' # U+Dxxx Hangul
s = u'\ud1bc'.encode('utf-8')
l = encoding.tolocal(s)
self.assertEqual(l, b'\xc5\xed') # lossless
self.assertEqual(s, encoding.toutf8b(l)) # convert back to utf-8
if __name__ == '__main__':
import silenttestrunner
silenttestrunner.main(__name__)