summaryrefslogtreecommitdiffstats
path: root/Lib/test/test_opcodes.py
blob: f510bac9f02bee0d984c4313a8f498f1e7057264 (plain)
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
# Python test set -- part 2, opcodes

from test.support import run_unittest
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(Exception): pass
        class BClass(AClass): pass
        class CClass(Exception): 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 b
        except AClass as 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 as 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():
    run_unittest(OpcodeTest)

if __name__ == '__main__':
    test_main()