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139 lines
3.6 KiB
Python
139 lines
3.6 KiB
Python
# Python test set -- part 2, opcodes
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import unittest
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from test import ann_module, support
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class OpcodeTest(unittest.TestCase):
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def test_try_inside_for_loop(self):
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n = 0
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for i in range(10):
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n = n+i
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try: 1/0
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except NameError: pass
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except ZeroDivisionError: pass
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except TypeError: pass
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try: pass
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except: pass
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try: pass
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finally: pass
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n = n+i
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if n != 90:
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self.fail('try inside for')
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def test_setup_annotations_line(self):
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# check that SETUP_ANNOTATIONS does not create spurious line numbers
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try:
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with open(ann_module.__file__) as f:
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txt = f.read()
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co = compile(txt, ann_module.__file__, 'exec')
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self.assertEqual(co.co_firstlineno, 6)
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except OSError:
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pass
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def test_no_annotations_if_not_needed(self):
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class C: pass
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with self.assertRaises(AttributeError):
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C.__annotations__
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def test_use_existing_annotations(self):
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ns = {'__annotations__': {1: 2}}
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exec('x: int', ns)
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self.assertEqual(ns['__annotations__'], {'x': int, 1: 2})
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def test_do_not_recreate_annotations(self):
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# Don't rely on the existence of the '__annotations__' global.
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with support.swap_item(globals(), '__annotations__', {}):
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del globals()['__annotations__']
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class C:
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del __annotations__
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with self.assertRaises(NameError):
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x: int
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def test_raise_class_exceptions(self):
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class AClass(Exception): pass
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class BClass(AClass): pass
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class CClass(Exception): pass
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class DClass(AClass):
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def __init__(self, ignore):
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pass
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try: raise AClass()
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except: pass
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try: raise AClass()
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except AClass: pass
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try: raise BClass()
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except AClass: pass
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try: raise BClass()
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except CClass: self.fail()
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except: pass
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a = AClass()
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b = BClass()
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try:
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raise b
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except AClass as v:
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self.assertEqual(v, b)
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else:
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self.fail("no exception")
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# not enough arguments
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##try: raise BClass, a
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##except TypeError: pass
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##else: self.fail("no exception")
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try: raise DClass(a)
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except DClass as v:
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self.assertIsInstance(v, DClass)
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else:
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self.fail("no exception")
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def test_compare_function_objects(self):
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f = eval('lambda: None')
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g = eval('lambda: None')
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self.assertNotEqual(f, g)
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f = eval('lambda a: a')
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g = eval('lambda a: a')
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self.assertNotEqual(f, g)
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f = eval('lambda a=1: a')
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g = eval('lambda a=1: a')
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self.assertNotEqual(f, g)
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f = eval('lambda: 0')
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g = eval('lambda: 1')
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self.assertNotEqual(f, g)
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f = eval('lambda: None')
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g = eval('lambda a: None')
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self.assertNotEqual(f, g)
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f = eval('lambda a: None')
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g = eval('lambda b: None')
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self.assertNotEqual(f, g)
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f = eval('lambda a: None')
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g = eval('lambda a=None: None')
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self.assertNotEqual(f, g)
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f = eval('lambda a=0: None')
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g = eval('lambda a=1: None')
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self.assertNotEqual(f, g)
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def test_modulo_of_string_subclasses(self):
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class MyString(str):
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def __mod__(self, value):
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return 42
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self.assertEqual(MyString() % 3, 42)
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if __name__ == '__main__':
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unittest.main()
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