1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
Lib/test/test_opcodes.py
# Python test set -- part 2, opcodes

from test.test_support import run_unittest, check_py3k_warnings
import unittest

class OpcodeTest(unittest.TestCase):

    def test_try_inside_for_loop(self):
        n = 0
        for i in range(10):
            n = n+i
            try: 1 // 0
            except NameError: pass
            except ZeroDivisionError: pass
            except TypeError: pass
            try: pass
            except: pass
            try: pass
            finally: pass
            n = n+i
        if n != 90:
            self.fail('try inside for')

    def test_raise_class_exceptions(self):

        class AClass: pass
        class BClass(AClass): pass
        class CClass: pass
        class DClass(AClass):
            def __init__(self, ignore):
                pass

        try: raise AClass()
        except: pass

        try: raise AClass()
        except AClass: pass

        try: raise BClass()
        except AClass: pass

        try: raise BClass()
        except CClass: self.fail()
        except: pass

        a = AClass()
        b = BClass()

        try: raise AClass, b
        except BClass, v:
            self.assertEqual(v, b)
        else: self.fail("no exception")

        try: raise b
        except AClass, v:
            self.assertEqual(v, b)
        else:
            self.fail("no exception")

        # not enough arguments
        try:  raise BClass, a
        except TypeError: pass
        else: self.fail("no exception")

        try:  raise DClass, a
        except DClass, v:
            self.assertIsInstance(v, DClass)
        else:
            self.fail("no exception")

    def test_compare_function_objects(self):

        f = eval('lambda: None')
        g = eval('lambda: None')
        self.assertNotEqual(f, g)

        f = eval('lambda a: a')
        g = eval('lambda a: a')
        self.assertNotEqual(f, g)

        f = eval('lambda a=1: a')
        g = eval('lambda a=1: a')
        self.assertNotEqual(f, g)

        f = eval('lambda: 0')
        g = eval('lambda: 1')
        self.assertNotEqual(f, g)

        f = eval('lambda: None')
        g = eval('lambda a: None')
        self.assertNotEqual(f, g)

        f = eval('lambda a: None')
        g = eval('lambda b: None')
        self.assertNotEqual(f, g)

        f = eval('lambda a: None')
        g = eval('lambda a=None: None')
        self.assertNotEqual(f, g)

        f = eval('lambda a=0: None')
        g = eval('lambda a=1: None')
        self.assertNotEqual(f, g)

    def test_modulo_of_string_subclasses(self):
        class MyString(str):
            def __mod__(self, value):
                return 42
        self.assertEqual(MyString() % 3, 42)


def test_main():
    with check_py3k_warnings(("exceptions must derive from BaseException",
                              DeprecationWarning),
                             ("catching classes that don't inherit "
                              "from BaseException is not allowed",
                              DeprecationWarning)):
        run_unittest(OpcodeTest)

if __name__ == '__main__':
    test_main()