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48 lines
1.3 KiB
Python
48 lines
1.3 KiB
Python
'''
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To make the life of any analysis easier, we are generating Param objects
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instead of simple parser objects.
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'''
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from textwrap import dedent
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from parso import parse
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def assert_params(param_string, **wanted_dct):
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source = dedent('''
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def x(%s):
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pass
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''') % param_string
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module = parse(source)
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funcdef = next(module.iter_funcdefs())
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dct = dict((p.name.value, p.default and p.default.get_code())
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for p in funcdef.get_params())
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assert dct == wanted_dct
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assert module.get_code() == source
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def test_split_params_with_separation_star():
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assert_params('x, y=1, *, z=3', x=None, y='1', z='3')
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assert_params('*, x', x=None)
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assert_params('*')
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def test_split_params_with_stars():
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assert_params('x, *args', x=None, args=None)
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assert_params('**kwargs', kwargs=None)
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assert_params('*args, **kwargs', args=None, kwargs=None)
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def test_kw_only_no_kw(works_in_py):
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"""
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Parsing this should be working. In CPython the parser also parses this and
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in a later step the AST complains.
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"""
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module = works_in_py.parse('def test(arg, *):\n pass')
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if module is not None:
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func = module.children[0]
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open_, p1, asterisk, close = func._get_param_nodes()
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assert p1.get_code('arg,')
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assert asterisk.value == '*'
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