Mercurial > hg
view tests/test-extensions-wrapfunction.py @ 46529:33350debb480 stable
patch: make diff --git to differentiate b/w file is empty or doesn't exists
Before this patch, as we didn't differentiate the two cases of a file in a context:
1. File doesn't exists
2. File is empty
which causes the blob id to be same for both the cases.
Now we use `nullhex` for a file which doesn't exists in a context (aligning it with
the git diff format)
Changes in test file reflect the fixed behavior.
Differential Revision: https://phab.mercurial-scm.org/D10001
author | Sushil khanchi <sushilkhanchi97@gmail.com> |
---|---|
date | Tue, 16 Feb 2021 15:44:51 +0530 |
parents | 2372284d9457 |
children | 6000f5b25c9b |
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from __future__ import absolute_import, print_function from mercurial import extensions def genwrapper(x): def f(orig, *args, **kwds): return [x] + orig(*args, **kwds) f.x = x return f def getid(wrapper): return getattr(wrapper, 'x', '-') wrappers = [genwrapper(i) for i in range(5)] class dummyclass(object): def getstack(self): return ['orig'] dummy = dummyclass() def batchwrap(wrappers): for w in wrappers: extensions.wrapfunction(dummy, 'getstack', w) print('wrap %d: %s' % (getid(w), dummy.getstack())) def batchunwrap(wrappers): for w in wrappers: result = None try: result = extensions.unwrapfunction(dummy, 'getstack', w) msg = str(dummy.getstack()) except (ValueError, IndexError) as e: msg = e.__class__.__name__ print('unwrap %s: %s: %s' % (getid(w), getid(result), msg)) batchwrap(wrappers + [wrappers[0]]) batchunwrap( [ (wrappers[i] if i is not None and i >= 0 else None) for i in [3, None, 0, 4, 0, 2, 1, None] ] ) wrap0 = extensions.wrappedfunction(dummy, 'getstack', wrappers[0]) wrap1 = extensions.wrappedfunction(dummy, 'getstack', wrappers[1]) # Use them in a different order from how they were created to check that # the wrapping happens in __enter__, not in __init__ print('context manager', dummy.getstack()) with wrap1: print('context manager', dummy.getstack()) with wrap0: print('context manager', dummy.getstack()) # Bad programmer forgets to unwrap the function, but the context # managers still unwrap their wrappings. extensions.wrapfunction(dummy, 'getstack', wrappers[2]) print('context manager', dummy.getstack()) print('context manager', dummy.getstack()) print('context manager', dummy.getstack()) # Wrap callable object which has no __name__ class callableobj(object): def __call__(self): return ['orig'] dummy.cobj = callableobj() extensions.wrapfunction(dummy, 'cobj', wrappers[0]) print('wrap callable object', dummy.cobj())