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b14ff0c721
Add 'parse_argspec_for_PY2(obj)' function to '_pydev_calltip_util.py' file. Python2 hasn't 'inspect.getfullargspec(obj)' method and 'inspect.getargspec(obj)' can't work with buildin functions/methods(throws TypeError). But we can try parse 'obj.__doc__' and create 'inspect.ArgSpec' by ourselves. GitOrigin-RevId: a05046b86049daacd439187b1a0a7fbb0448f410
81 lines
3.1 KiB
Python
81 lines
3.1 KiB
Python
# Copyright 2000-2022 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
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import inspect
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import sys
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import unittest
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from _pydev_bundle._pydev_calltip_util import getargspec_py2, is_bound_method
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from _pydevd_bundle import pydevd_io
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from _pydevd_bundle.pydevd_constants import IS_PY2
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def get_fob(obj):
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"""A helper function that simulates the transformation of an object
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as a function 'get_description(obj)' from '_pydev_calltip_util.py'"""
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try:
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ob_call = obj.__call__
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except:
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ob_call = None
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if isinstance(obj, type) or type(obj).__name__ == 'classobj':
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fob = getattr(obj, '__init__', lambda: None)
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if not callable(fob):
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fob = obj
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elif is_bound_method(ob_call):
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fob = ob_call
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else:
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fob = obj
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return fob
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class Test(unittest.TestCase):
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"""Test checks the correctness of 'getargspec_py2(obj)' from '_pydev_calltip_util.py'.
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The function is needed because in Python 2 we don't have 'inspect.getfullargspec(obj)'.
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And 'inspect.getargspec(obj)' doesn't work with build-in functions.
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Therefore, we are trying to get args from the object.__doc__"""
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def test_getargspec_py2(self):
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if IS_PY2:
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self.original_stdout = sys.stdout
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sys.stdout = pydevd_io.IOBuf()
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try:
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# dict -> dict()
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actual = getargspec_py2(dict)
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expected = inspect.ArgSpec(args=[], varargs=None, keywords=None,
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defaults=())
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self.assertEqual(expected, actual)
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# vars -> vars([object])
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fob = get_fob(vars)
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actual = getargspec_py2(fob)
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expected = inspect.ArgSpec(args=['[object]'], varargs=None,
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keywords=None,
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defaults=())
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self.assertEqual(expected, actual)
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# str.join -> str.join(iterable)
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val = ""
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fob = get_fob(val.join)
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actual = getargspec_py2(fob)
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expected = inspect.ArgSpec(args=['iterable'], varargs=None,
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keywords=None,
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defaults=())
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self.assertEqual(expected, actual)
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# list -> list()
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actual = getargspec_py2(list)
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expected = inspect.ArgSpec(args=[], varargs=None, keywords=None,
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defaults=())
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self.assertEqual(expected, actual)
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# compile -> compile(source, filename, mode[, flags[, dont_inherit]])
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fob = get_fob(compile)
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actual = getargspec_py2(fob)
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expected = inspect.ArgSpec(
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args=['source', 'filename', 'mode[', 'flags[', 'dont_inherit]]'],
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varargs=None, keywords=None, defaults=())
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self.assertEqual(expected, actual)
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finally:
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sys.stdout = self.original_stdout
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