extensions: load help from hgext.__index__ as a fallback this time
Prior to 843418dc0b1b, `hgext.__index__` was consulted first if present, which
caused the longer help from the extension modules to be ignored, even when
available. But that change causes a bunch of test failures when the pyoxidized
binary bundles *.pyc in the binary, saying the there's no help topic for
`hg help $disabled_extension` and suggesting the use of `--keyword`, rather than
showing a summary and indicating that it is disabled. Current failures were in
test-check-help.t, test-extension.t, test-help.t, and test-qrecord.t.
Ideally, we would read the various *.pyc files from memory and slurp in the
docstring, but I know that they used to not be readable as resources, and I
can't figure out how to make it work now. So maybe 3.9 and/or the current
PyOxidizer doesn't support it yet. I got closer in py2exe with
`importlib.resources.open_binary("hgext", "rebase.pyc")`, but `open_binary()` on
*.pyc fails in pyoxidizer.[1] Either way, the *.pyc can't be passed to
`ast.parse()` as `extensions._disabledcmdtable()` is doing, so I'm setting that
aside for now.
[1] https://github.com/indygreg/PyOxidizer/issues/649
# Tests to ensure that sha1dc.sha1 is exactly a drop-in for
# hashlib.sha1 for our needs.
import hashlib
import unittest
import silenttestrunner
try:
from mercurial.thirdparty import sha1dc
except ImportError:
sha1dc = None
class hashertestsbase:
def test_basic_hash(self):
h = self.hasher()
h.update(b'foo')
self.assertEqual(
'0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33', h.hexdigest()
)
h.update(b'bar')
self.assertEqual(
'8843d7f92416211de9ebb963ff4ce28125932878', h.hexdigest()
)
def test_copy_hasher(self):
h = self.hasher()
h.update(b'foo')
h2 = h.copy()
h.update(b'baz')
h2.update(b'bar')
self.assertEqual(
'21eb6533733a5e4763acacd1d45a60c2e0e404e1', h.hexdigest()
)
self.assertEqual(
'8843d7f92416211de9ebb963ff4ce28125932878', h2.hexdigest()
)
def test_init_hasher(self):
h = self.hasher(b'initial string')
self.assertEqual(
b'\xc9y|n\x1f3S\xa4:\xbaJ\xca,\xc1\x1a\x9e\xb8\xd8\xdd\x86',
h.digest(),
)
def test_bytes_like_types(self):
h = self.hasher()
h.update(bytearray(b'foo'))
h.update(memoryview(b'baz'))
self.assertEqual(
'21eb6533733a5e4763acacd1d45a60c2e0e404e1', h.hexdigest()
)
h = self.hasher(bytearray(b'foo'))
h.update(b'baz')
self.assertEqual(
'21eb6533733a5e4763acacd1d45a60c2e0e404e1', h.hexdigest()
)
h = self.hasher(memoryview(b'foo'))
h.update(b'baz')
self.assertEqual(
'21eb6533733a5e4763acacd1d45a60c2e0e404e1', h.hexdigest()
)
class hashlibtests(unittest.TestCase, hashertestsbase):
hasher = hashlib.sha1
if sha1dc:
class sha1dctests(unittest.TestCase, hashertestsbase):
hasher = sha1dc.sha1
if __name__ == '__main__':
silenttestrunner.main(__name__)