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166 lines
7.1 KiB
166 lines
7.1 KiB
import unittest
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from unittest.mock import patch
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import builtins
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import rlcompleter
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class CompleteMe:
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""" Trivial class used in testing rlcompleter.Completer. """
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spam = 1
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_ham = 2
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class TestRlcompleter(unittest.TestCase):
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def setUp(self):
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self.stdcompleter = rlcompleter.Completer()
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self.completer = rlcompleter.Completer(dict(spam=int,
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egg=str,
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CompleteMe=CompleteMe))
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# forces stdcompleter to bind builtins namespace
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self.stdcompleter.complete('', 0)
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def test_namespace(self):
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class A(dict):
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pass
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class B(list):
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pass
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self.assertTrue(self.stdcompleter.use_main_ns)
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self.assertFalse(self.completer.use_main_ns)
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self.assertFalse(rlcompleter.Completer(A()).use_main_ns)
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self.assertRaises(TypeError, rlcompleter.Completer, B((1,)))
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def test_global_matches(self):
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# test with builtins namespace
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self.assertEqual(sorted(self.stdcompleter.global_matches('di')),
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[x+'(' for x in dir(builtins) if x.startswith('di')])
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self.assertEqual(sorted(self.stdcompleter.global_matches('st')),
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[x+'(' for x in dir(builtins) if x.startswith('st')])
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self.assertEqual(self.stdcompleter.global_matches('akaksajadhak'), [])
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# test with a customized namespace
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self.assertEqual(self.completer.global_matches('CompleteM'),
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['CompleteMe()'])
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self.assertEqual(self.completer.global_matches('eg'),
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['egg('])
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# XXX: see issue5256
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self.assertEqual(self.completer.global_matches('CompleteM'),
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['CompleteMe()'])
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def test_attr_matches(self):
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# test with builtins namespace
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self.assertEqual(self.stdcompleter.attr_matches('str.s'),
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['str.{}('.format(x) for x in dir(str)
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if x.startswith('s')])
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self.assertEqual(self.stdcompleter.attr_matches('tuple.foospamegg'), [])
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expected = sorted({'None.%s%s' % (x, '(' if x != '__doc__' else '')
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for x in dir(None)})
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self.assertEqual(self.stdcompleter.attr_matches('None.'), expected)
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self.assertEqual(self.stdcompleter.attr_matches('None._'), expected)
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self.assertEqual(self.stdcompleter.attr_matches('None.__'), expected)
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# test with a customized namespace
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self.assertEqual(self.completer.attr_matches('CompleteMe.sp'),
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['CompleteMe.spam'])
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self.assertEqual(self.completer.attr_matches('Completeme.egg'), [])
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self.assertEqual(self.completer.attr_matches('CompleteMe.'),
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['CompleteMe.mro()', 'CompleteMe.spam'])
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self.assertEqual(self.completer.attr_matches('CompleteMe._'),
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['CompleteMe._ham'])
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matches = self.completer.attr_matches('CompleteMe.__')
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for x in matches:
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self.assertTrue(x.startswith('CompleteMe.__'), x)
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self.assertIn('CompleteMe.__name__', matches)
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self.assertIn('CompleteMe.__new__(', matches)
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with patch.object(CompleteMe, "me", CompleteMe, create=True):
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self.assertEqual(self.completer.attr_matches('CompleteMe.me.me.sp'),
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['CompleteMe.me.me.spam'])
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self.assertEqual(self.completer.attr_matches('egg.s'),
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['egg.{}('.format(x) for x in dir(str)
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if x.startswith('s')])
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def test_excessive_getattr(self):
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"""Ensure getattr() is invoked no more than once per attribute"""
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# note the special case for @property methods below; that is why
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# we use __dir__ and __getattr__ in class Foo to create a "magic"
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# class attribute 'bar'. This forces `getattr` to call __getattr__
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# (which is doesn't necessarily do).
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class Foo:
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calls = 0
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bar = ''
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def __getattribute__(self, name):
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if name == 'bar':
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self.calls += 1
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return None
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return super().__getattribute__(name)
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f = Foo()
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completer = rlcompleter.Completer(dict(f=f))
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self.assertEqual(completer.complete('f.b', 0), 'f.bar')
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self.assertEqual(f.calls, 1)
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def test_property_method_not_called(self):
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class Foo:
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_bar = 0
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property_called = False
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@property
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def bar(self):
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self.property_called = True
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return self._bar
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f = Foo()
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completer = rlcompleter.Completer(dict(f=f))
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self.assertEqual(completer.complete('f.b', 0), 'f.bar')
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self.assertFalse(f.property_called)
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def test_uncreated_attr(self):
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# Attributes like properties and slots should be completed even when
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# they haven't been created on an instance
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class Foo:
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__slots__ = ("bar",)
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completer = rlcompleter.Completer(dict(f=Foo()))
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self.assertEqual(completer.complete('f.', 0), 'f.bar')
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@unittest.mock.patch('rlcompleter._readline_available', False)
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def test_complete(self):
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completer = rlcompleter.Completer()
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self.assertEqual(completer.complete('', 0), '\t')
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self.assertEqual(completer.complete('a', 0), 'and ')
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self.assertEqual(completer.complete('a', 1), 'as ')
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self.assertEqual(completer.complete('as', 2), 'assert ')
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self.assertEqual(completer.complete('an', 0), 'and ')
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self.assertEqual(completer.complete('pa', 0), 'pass')
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self.assertEqual(completer.complete('Fa', 0), 'False')
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self.assertEqual(completer.complete('el', 0), 'elif ')
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self.assertEqual(completer.complete('el', 1), 'else')
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self.assertEqual(completer.complete('tr', 0), 'try:')
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def test_duplicate_globals(self):
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namespace = {
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'False': None, # Keyword vs builtin vs namespace
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'assert': None, # Keyword vs namespace
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'try': lambda: None, # Keyword vs callable
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'memoryview': None, # Callable builtin vs non-callable
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'Ellipsis': lambda: None, # Non-callable builtin vs callable
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}
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completer = rlcompleter.Completer(namespace)
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self.assertEqual(completer.complete('False', 0), 'False')
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self.assertIsNone(completer.complete('False', 1)) # No duplicates
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# Space or colon added due to being a reserved keyword
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self.assertEqual(completer.complete('assert', 0), 'assert ')
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self.assertIsNone(completer.complete('assert', 1))
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self.assertEqual(completer.complete('try', 0), 'try:')
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self.assertIsNone(completer.complete('try', 1))
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# No opening bracket "(" because we overrode the built-in class
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self.assertEqual(completer.complete('memoryview', 0), 'memoryview')
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self.assertIsNone(completer.complete('memoryview', 1))
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self.assertEqual(completer.complete('Ellipsis', 0), 'Ellipsis()')
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self.assertIsNone(completer.complete('Ellipsis', 1))
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if __name__ == '__main__':
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unittest.main()
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