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211d81f84f
This was changed automatically in #894, but apparently we need to have the copyright notice somewhere.
93 lines
3.4 KiB
Python
93 lines
3.4 KiB
Python
# Copyright (c) 2003-2016 LOGILAB S.A. (Paris, FRANCE).
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# http://www.logilab.fr/ -- mailto:contact@logilab.fr
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# Licensed under the GPL: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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# For details: https://github.com/PyCQA/pylint/blob/master/COPYING
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"""Tests for the pylint.checkers.utils module."""
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import unittest
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import warnings
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import astroid
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from pylint.checkers import utils
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from pylint import __pkginfo__
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class UtilsTC(unittest.TestCase):
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def test_is_builtin(self):
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self.assertEqual(utils.is_builtin('min'), True)
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self.assertEqual(utils.is_builtin('__builtins__'), True)
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self.assertEqual(utils.is_builtin('__path__'), False)
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self.assertEqual(utils.is_builtin('__file__'), False)
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self.assertEqual(utils.is_builtin('whatever'), False)
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self.assertEqual(utils.is_builtin('mybuiltin'), False)
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def testGetArgumentFromCall(self):
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node = astroid.extract_node('foo(bar=3)')
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self.assertIsNotNone(utils.get_argument_from_call(node, keyword='bar'))
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with self.assertRaises(utils.NoSuchArgumentError):
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node = astroid.extract_node('foo(3)')
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utils.get_argument_from_call(node, keyword='bar')
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with self.assertRaises(utils.NoSuchArgumentError):
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node = astroid.extract_node('foo(one=a, two=b, three=c)')
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utils.get_argument_from_call(node, position=1)
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node = astroid.extract_node('foo(a, b, c)')
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self.assertIsNotNone(utils.get_argument_from_call(node, position=1))
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node = astroid.extract_node('foo(a, not_this_one=1, this_one=2)')
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arg = utils.get_argument_from_call(node, position=2, keyword='this_one')
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self.assertEqual(2, arg.value)
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node = astroid.extract_node('foo(a)')
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with self.assertRaises(utils.NoSuchArgumentError):
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utils.get_argument_from_call(node, position=1)
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with self.assertRaises(ValueError):
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utils.get_argument_from_call(node, None, None)
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name = utils.get_argument_from_call(node, position=0)
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self.assertEqual(name.name, 'a')
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def test_error_of_type(self):
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nodes = astroid.extract_node("""
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try: pass
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except AttributeError: #@
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pass
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try: pass
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except Exception: #@
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pass
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except: #@
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pass
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""")
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self.assertTrue(utils.error_of_type(nodes[0], AttributeError))
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self.assertTrue(utils.error_of_type(nodes[0], (AttributeError, )))
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self.assertFalse(utils.error_of_type(nodes[0], Exception))
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self.assertTrue(utils.error_of_type(nodes[1], Exception))
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self.assertFalse(utils.error_of_type(nodes[2], ImportError))
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def test_node_ignores_exception(self):
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nodes = astroid.extract_node("""
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try:
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1/0 #@
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except ZeroDivisionError:
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pass
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try:
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1/0 #@
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except Exception:
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pass
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try:
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2/0 #@
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except:
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pass
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try:
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1/0 #@
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except ValueError:
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pass
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""")
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self.assertTrue(utils.node_ignores_exception(nodes[0], ZeroDivisionError))
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self.assertFalse(utils.node_ignores_exception(nodes[1], ZeroDivisionError))
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self.assertFalse(utils.node_ignores_exception(nodes[2], ZeroDivisionError))
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self.assertFalse(utils.node_ignores_exception(nodes[3], ZeroDivisionError))
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if __name__ == '__main__':
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unittest.main()
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