summaryrefslogtreecommitdiffstats
path: root/Lib/test/test_unittest/support.py
blob: 8c97bf5c7297fe56ce0f3aeaf401b08a4a01915e (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
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
import unittest


class TestEquality(object):
    """Used as a mixin for TestCase"""

    # Check for a valid __eq__ implementation
    def test_eq(self):
        for obj_1, obj_2 in self.eq_pairs:
            self.assertEqual(obj_1, obj_2)
            self.assertEqual(obj_2, obj_1)

    # Check for a valid __ne__ implementation
    def test_ne(self):
        for obj_1, obj_2 in self.ne_pairs:
            self.assertNotEqual(obj_1, obj_2)
            self.assertNotEqual(obj_2, obj_1)

class TestHashing(object):
    """Used as a mixin for TestCase"""

    # Check for a valid __hash__ implementation
    def test_hash(self):
        for obj_1, obj_2 in self.eq_pairs:
            try:
                if not hash(obj_1) == hash(obj_2):
                    self.fail("%r and %r do not hash equal" % (obj_1, obj_2))
            except Exception as e:
                self.fail("Problem hashing %r and %r: %s" % (obj_1, obj_2, e))

        for obj_1, obj_2 in self.ne_pairs:
            try:
                if hash(obj_1) == hash(obj_2):
                    self.fail("%s and %s hash equal, but shouldn't" %
                              (obj_1, obj_2))
            except Exception as e:
                self.fail("Problem hashing %s and %s: %s" % (obj_1, obj_2, e))


class _BaseLoggingResult(unittest.TestResult):
    def __init__(self, log):
        self._events = log
        super().__init__()

    def startTest(self, test):
        self._events.append('startTest')
        super().startTest(test)

    def startTestRun(self):
        self._events.append('startTestRun')
        super().startTestRun()

    def stopTest(self, test):
        self._events.append('stopTest')
        super().stopTest(test)

    def stopTestRun(self):
        self._events.append('stopTestRun')
        super().stopTestRun()

    def addFailure(self, *args):
        self._events.append('addFailure')
        super().addFailure(*args)

    def addSuccess(self, *args):
        self._events.append('addSuccess')
        super().addSuccess(*args)

    def addError(self, *args):
        self._events.append('addError')
        super().addError(*args)

    def addSkip(self, *args):
        self._events.append('addSkip')
        super().addSkip(*args)

    def addExpectedFailure(self, *args):
        self._events.append('addExpectedFailure')
        super().addExpectedFailure(*args)

    def addUnexpectedSuccess(self, *args):
        self._events.append('addUnexpectedSuccess')
        super().addUnexpectedSuccess(*args)


class LegacyLoggingResult(_BaseLoggingResult):
    """
    A legacy TestResult implementation, without an addSubTest method,
    which records its method calls.
    """

    @property
    def addSubTest(self):
        raise AttributeError


class LoggingResult(_BaseLoggingResult):
    """
    A TestResult implementation which records its method calls.
    """

    def addSubTest(self, test, subtest, err):
        if err is None:
            self._events.append('addSubTestSuccess')
        else:
            self._events.append('addSubTestFailure')
        super().addSubTest(test, subtest, err)


class ResultWithNoStartTestRunStopTestRun(object):
    """An object honouring TestResult before startTestRun/stopTestRun."""

    def __init__(self):
        self.failures = []
        self.errors = []
        self.testsRun = 0
        self.skipped = []
        self.expectedFailures = []
        self.unexpectedSuccesses = []
        self.shouldStop = False

    def startTest(self, test):
        pass

    def stopTest(self, test):
        pass

    def addError(self, test):
        pass

    def addFailure(self, test):
        pass

    def addSuccess(self, test):
        pass

    def wasSuccessful(self):
        return True


class BufferedWriter:
    def __init__(self):
        self.result = ''
        self.buffer = ''

    def write(self, arg):
        self.buffer += arg

    def flush(self):
        self.result += self.buffer
        self.buffer = ''

    def getvalue(self):
        return self.result