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