tests/test-byteify-strings.t

revlog: add a C implementation of `headrevsdiff`

Python implementation of `headrevsdiff` can be very slow in the worst
case compared with the `heads` computation it replaces, since the
latter is done in C.

Even the average case of this Python implementation is still
noticeable in the profiles.

This patch makes the computation much much faster by doing it in C.

#require py37

  $ byteify_strings () {
  >   "$PYTHON" "$TESTDIR/../contrib/byteify-strings.py" "$@"
  > }

Test version

  $ byteify_strings --version
  Byteify strings * (glob)

Test in-place

  $ cat > testfile.py <<EOF
  > obj['test'] = b"1234"
  > mydict.iteritems()
  > EOF
  $ byteify_strings testfile.py -i
  $ cat testfile.py
  obj[b'test'] = b"1234"
  mydict.iteritems()

Test with dictiter

  $ cat > testfile.py <<EOF
  > obj['test'] = b"1234"
  > mydict.iteritems()
  > EOF
  $ byteify_strings testfile.py --dictiter
  obj[b'test'] = b"1234"
  mydict.items()

Test kwargs-like objects

  $ cat > testfile.py <<EOF
  > kwargs['test'] = "123"
  > kwargs[test['testing']]
  > kwargs[test[[['testing']]]]
  > kwargs[kwargs['testing']]
  > kwargs.get('test')
  > kwargs.pop('test')
  > kwargs.get('test', 'testing')
  > kwargs.pop('test', 'testing')
  > kwargs.setdefault('test', 'testing')
  > 
  > opts['test'] = "123"
  > opts[test['testing']]
  > opts[test[[['testing']]]]
  > opts[opts['testing']]
  > opts.get('test')
  > opts.pop('test')
  > opts.get('test', 'testing')
  > opts.pop('test', 'testing')
  > opts.setdefault('test', 'testing')
  > 
  > commitopts['test'] = "123"
  > commitopts[test['testing']]
  > commitopts[test[[['testing']]]]
  > commitopts[commitopts['testing']]
  > commitopts.get('test')
  > commitopts.pop('test')
  > commitopts.get('test', 'testing')
  > commitopts.pop('test', 'testing')
  > commitopts.setdefault('test', 'testing')
  > EOF
  $ byteify_strings testfile.py --treat-as-kwargs kwargs opts commitopts
  kwargs['test'] = b"123"
  kwargs[test[b'testing']]
  kwargs[test[[[b'testing']]]]
  kwargs[kwargs['testing']]
  kwargs.get('test')
  kwargs.pop('test')
  kwargs.get('test', b'testing')
  kwargs.pop('test', b'testing')
  kwargs.setdefault('test', b'testing')
  
  opts['test'] = b"123"
  opts[test[b'testing']]
  opts[test[[[b'testing']]]]
  opts[opts['testing']]
  opts.get('test')
  opts.pop('test')
  opts.get('test', b'testing')
  opts.pop('test', b'testing')
  opts.setdefault('test', b'testing')
  
  commitopts['test'] = b"123"
  commitopts[test[b'testing']]
  commitopts[test[[[b'testing']]]]
  commitopts[commitopts['testing']]
  commitopts.get('test')
  commitopts.pop('test')
  commitopts.get('test', b'testing')
  commitopts.pop('test', b'testing')
  commitopts.setdefault('test', b'testing')

Test attr*() as methods

  $ cat > testfile.py <<EOF
  > setattr(o, 'a', 1)
  > util.setattr(o, 'ae', 1)
  > util.getattr(o, 'alksjdf', 'default')
  > util.addattr(o, 'asdf')
  > util.hasattr(o, 'lksjdf', 'default')
  > util.safehasattr(o, 'lksjdf', 'default')
  > @eh.wrapfunction(func, 'lksjdf')
  > def f():
  >     pass
  > @eh.wrapclass(klass, 'lksjdf')
  > def f():
  >     pass
  > EOF

Test without attr*() as methods

  $ cat > testfile.py <<EOF
  > setattr(o, 'a', 1)
  > util.setattr(o, 'ae', 1)
  > util.getattr(o, 'alksjdf', 'default')
  > util.addattr(o, 'asdf')
  > util.hasattr(o, 'lksjdf', 'default')
  > util.safehasattr(o, 'lksjdf', 'default')
  > @eh.wrapfunction(func, 'lksjdf')
  > def f():
  >     pass
  > @eh.wrapclass(klass, 'lksjdf')
  > def f():
  >     pass
  > EOF
  $ byteify_strings testfile.py
  setattr(o, 'a', 1)
  util.setattr(o, 'ae', 1)
  util.getattr(o, 'alksjdf', b'default')
  util.addattr(o, 'asdf')
  util.hasattr(o, 'lksjdf', b'default')
  util.safehasattr(o, 'lksjdf', b'default')
  @eh.wrapfunction(func, 'lksjdf')
  def f():
      pass
  @eh.wrapclass(klass, 'lksjdf')
  def f():
      pass

Test ignore comments

  $ cat > testfile.py <<EOF
  > # py3-transform: off
  > "none"
  > "of"
  > 'these'
  > s = """should"""
  > d = '''be'''
  > # py3-transform: on
  > "this should"
  > 'and this also'
  > 
  > # no-py3-transform
  > l = "this should be ignored"
  > l2 = "this shouldn't"
  > 
  > EOF
  $ byteify_strings testfile.py
  # py3-transform: off
  "none"
  "of"
  'these'
  s = """should"""
  d = '''be'''
  # py3-transform: on
  b"this should"
  b'and this also'
  
  # no-py3-transform
  l = "this should be ignored"
  l2 = b"this shouldn't"
  
Test triple-quoted strings

  $ cat > testfile.py <<EOF
  > """This is ignored
  > """
  > 
  > line = """
  >   This should not be
  > """
  > line = '''
  > Neither should this
  > '''
  > EOF
  $ byteify_strings testfile.py
  """This is ignored
  """
  
  line = b"""
    This should not be
  """
  line = b'''
  Neither should this
  '''

Test prefixed strings

  $ cat > testfile.py <<EOF
  > obj['test'] = b"1234"
  > obj[r'test'] = u"1234"
  > EOF
  $ byteify_strings testfile.py
  obj[b'test'] = b"1234"
  obj[r'test'] = u"1234"

Test multi-line alignment

  $ cat > testfile.py <<'EOF'
  > def foo():
  >     error.Abort(_("foo"
  >                  "bar"
  >                  "%s")
  >                % parameter)
  > {
  >     'test': dict,
  >     'test2': dict,
  > }
  > [
  >    "thing",
  >    "thing2"
  > ]
  > (
  >    "tuple",
  >    "tuple2",
  > )
  > {"thing",
  >  }
  > EOF
  $ byteify_strings testfile.py
  def foo():
      error.Abort(_(b"foo"
                    b"bar"
                    b"%s")
                  % parameter)
  {
      b'test': dict,
      b'test2': dict,
  }
  [
     b"thing",
     b"thing2"
  ]
  (
     b"tuple",
     b"tuple2",
  )
  {b"thing",
   }