71 lines
2.1 KiB
Python
71 lines
2.1 KiB
Python
# Copyright (c) 2015-2016 Claudiu Popa <pcmanticore@gmail.com>
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# Licensed under the LGPL: https://www.gnu.org/licenses/old-licenses/lgpl-2.1.en.html
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# For details: https://github.com/PyCQA/astroid/blob/master/COPYING.LESSER
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"""Hooks for nose library."""
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import re
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import textwrap
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import astroid
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import astroid.builder
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_BUILDER = astroid.builder.AstroidBuilder(astroid.MANAGER)
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def _pep8(name, caps=re.compile('([A-Z])')):
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return caps.sub(lambda m: '_' + m.groups()[0].lower(), name)
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def _nose_tools_functions():
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"""Get an iterator of names and bound methods."""
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module = _BUILDER.string_build(textwrap.dedent('''
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import unittest
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class Test(unittest.TestCase):
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pass
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a = Test()
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'''))
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try:
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case = next(module['a'].infer())
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except astroid.InferenceError:
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return
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for method in case.methods():
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if method.name.startswith('assert') and '_' not in method.name:
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pep8_name = _pep8(method.name)
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yield pep8_name, astroid.BoundMethod(method, case)
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if method.name == 'assertEqual':
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# nose also exports assert_equals.
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yield 'assert_equals', astroid.BoundMethod(method, case)
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def _nose_tools_transform(node):
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for method_name, method in _nose_tools_functions():
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node.locals[method_name] = [method]
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def _nose_tools_trivial_transform():
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"""Custom transform for the nose.tools module."""
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stub = _BUILDER.string_build('''__all__ = []''')
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all_entries = ['ok_', 'eq_']
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for pep8_name, method in _nose_tools_functions():
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all_entries.append(pep8_name)
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stub[pep8_name] = method
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# Update the __all__ variable, since nose.tools
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# does this manually with .append.
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all_assign = stub['__all__'].parent
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all_object = astroid.List(all_entries)
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all_object.parent = all_assign
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all_assign.value = all_object
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return stub
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astroid.register_module_extender(astroid.MANAGER, 'nose.tools.trivial',
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_nose_tools_trivial_transform)
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astroid.MANAGER.register_transform(astroid.Module, _nose_tools_transform,
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lambda n: n.name == 'nose.tools')
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