summaryrefslogtreecommitdiff
path: root/lib/testtools/tests/test_runtest.py
blob: 5c46ad17843d28bdfef577ceda6db49ebef7cdcd (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
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
# Copyright (c) 2009 Jonathan M. Lange. See LICENSE for details.

"""Tests for the RunTest single test execution logic."""

from testtools import (
    ExtendedToOriginalDecorator,
    RunTest,
    TestCase,
    TestResult,
    )
from testtools.tests.helpers import ExtendedTestResult


class TestRunTest(TestCase):

    def make_case(self):
        class Case(TestCase):
            def test(self):
                pass
        return Case('test')

    def test___init___short(self):
        run = RunTest("bar")
        self.assertEqual("bar", run.case)
        self.assertEqual([], run.handlers)

    def test__init____handlers(self):
        handlers = [("quux", "baz")]
        run = RunTest("bar", handlers)
        self.assertEqual(handlers, run.handlers)

    def test_run_with_result(self):
        # test.run passes result down to _run_test_method.
        log = []
        class Case(TestCase):
            def _run_test_method(self, result):
                log.append(result)
        case = Case('_run_test_method')
        run = RunTest(case, lambda x: log.append(x))
        result = TestResult()
        run.run(result)
        self.assertEqual(1, len(log))
        self.assertEqual(result, log[0].decorated)

    def test_run_no_result_manages_new_result(self):
        log = []
        run = RunTest(self.make_case(), lambda x: log.append(x) or x)
        result = run.run()
        self.assertIsInstance(result.decorated, TestResult)

    def test__run_core_called(self):
        case = self.make_case()
        log = []
        run = RunTest(case, lambda x: x)
        run._run_core = lambda: log.append('foo')
        run.run()
        self.assertEqual(['foo'], log)

    def test__run_user_does_not_catch_keyboard(self):
        case = self.make_case()
        def raises():
            raise KeyboardInterrupt("yo")
        run = RunTest(case, None)
        run.result = ExtendedTestResult()
        self.assertRaises(KeyboardInterrupt, run._run_user, raises)
        self.assertEqual([], run.result._events)

    def test__run_user_calls_onException(self):
        case = self.make_case()
        log = []
        def handler(exc_info):
            log.append("got it")
            self.assertEqual(3, len(exc_info))
            self.assertIsInstance(exc_info[1], KeyError)
            self.assertIs(KeyError, exc_info[0])
        case.addOnException(handler)
        e = KeyError('Yo')
        def raises():
            raise e
        def log_exc(self, result, err):
            log.append((result, err))
        run = RunTest(case, [(KeyError, log_exc)])
        run.result = ExtendedTestResult()
        status = run._run_user(raises)
        self.assertEqual(run.exception_caught, status)
        self.assertEqual([], run.result._events)
        self.assertEqual(["got it", (run.result, e)], log)

    def test__run_user_can_catch_Exception(self):
        case = self.make_case()
        e = Exception('Yo')
        def raises():
            raise e
        log = []
        def log_exc(self, result, err):
            log.append((result, err))
        run = RunTest(case, [(Exception, log_exc)])
        run.result = ExtendedTestResult()
        status = run._run_user(raises)
        self.assertEqual(run.exception_caught, status)
        self.assertEqual([], run.result._events)
        self.assertEqual([(run.result, e)], log)

    def test__run_user_uncaught_Exception_raised(self):
        case = self.make_case()
        e = KeyError('Yo')
        def raises():
            raise e
        log = []
        def log_exc(self, result, err):
            log.append((result, err))
        run = RunTest(case, [(ValueError, log_exc)])
        run.result = ExtendedTestResult()
        self.assertRaises(KeyError, run._run_user, raises)
        self.assertEqual([], run.result._events)
        self.assertEqual([], log)

    def test__run_user_uncaught_Exception_from_exception_handler_raised(self):
        case = self.make_case()
        def broken_handler(exc_info):
            # ValueError because thats what we know how to catch - and must
            # not.
            raise ValueError('boo')
        case.addOnException(broken_handler)
        e = KeyError('Yo')
        def raises():
            raise e
        log = []
        def log_exc(self, result, err):
            log.append((result, err))
        run = RunTest(case, [(ValueError, log_exc)])
        run.result = ExtendedTestResult()
        self.assertRaises(ValueError, run._run_user, raises)
        self.assertEqual([], run.result._events)
        self.assertEqual([], log)

    def test__run_user_returns_result(self):
        case = self.make_case()
        def returns():
            return 1
        run = RunTest(case)
        run.result = ExtendedTestResult()
        self.assertEqual(1, run._run_user(returns))
        self.assertEqual([], run.result._events)

    def test__run_one_decorates_result(self):
        log = []
        class Run(RunTest):
            def _run_prepared_result(self, result):
                log.append(result)
                return result
        run = Run(self.make_case(), lambda x: x)
        result = run._run_one('foo')
        self.assertEqual([result], log)
        self.assertIsInstance(log[0], ExtendedToOriginalDecorator)
        self.assertEqual('foo', result.decorated)

    def test__run_prepared_result_calls_start_and_stop_test(self):
        result = ExtendedTestResult()
        case = self.make_case()
        run = RunTest(case, lambda x: x)
        run.run(result)
        self.assertEqual([
            ('startTest', case),
            ('addSuccess', case),
            ('stopTest', case),
            ], result._events)

    def test__run_prepared_result_calls_stop_test_always(self):
        result = ExtendedTestResult()
        case = self.make_case()
        def inner():
            raise Exception("foo")
        run = RunTest(case, lambda x: x)
        run._run_core = inner
        self.assertRaises(Exception, run.run, result)
        self.assertEqual([
            ('startTest', case),
            ('stopTest', case),
            ], result._events)


def test_suite():
    from unittest import TestLoader
    return TestLoader().loadTestsFromName(__name__)