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Viewing changes to breezy/tests/test_controldir.py

  • Committer: Jelmer Vernooij
  • Date: 2017-07-23 22:06:41 UTC
  • mfrom: (6738 trunk)
  • mto: This revision was merged to the branch mainline in revision 6739.
  • Revision ID: jelmer@jelmer.uk-20170723220641-69eczax9bmv8d6kk
Merge trunk, address review comments.

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breezy/tests/test_controldir.py
 
1
# Copyright (C) 2011, 2016 Canonical Ltd
 
2
#
 
3
# This program is free software; you can redistribute it and/or modify
 
4
# it under the terms of the GNU General Public License as published by
 
5
# the Free Software Foundation; either version 2 of the License, or
 
6
# (at your option) any later version.
 
7
#
 
8
# This program is distributed in the hope that it will be useful,
 
9
# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
10
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
11
# GNU General Public License for more details.
 
12
#
 
13
# You should have received a copy of the GNU General Public License
 
14
# along with this program; if not, write to the Free Software
 
15
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
16
 
 
17
"""Tests for the ControlDir facility.
 
18
 
 
19
For interface contract tests, see tests/per_control_dir.
 
20
"""
 
21
 
 
22
from .. import (
 
23
    controldir,
 
24
    errors,
 
25
    tests,
 
26
    ui,
 
27
    )
 
28
from .scenarios import load_tests_apply_scenarios
 
29
 
 
30
 
 
31
load_tests = load_tests_apply_scenarios
 
32
 
 
33
 
 
34
class SampleComponentFormat(controldir.ControlComponentFormat):
 
35
 
 
36
    def get_format_string(self):
 
37
        return "Example component format."
 
38
 
 
39
 
 
40
class SampleExtraComponentFormat(controldir.ControlComponentFormat):
 
41
    """Extra format, no format string."""
 
42
 
 
43
 
 
44
class TestMetaComponentFormatRegistry(tests.TestCase):
 
45
 
 
46
    def setUp(self):
 
47
        super(TestMetaComponentFormatRegistry, self).setUp()
 
48
        self.registry = controldir.ControlComponentFormatRegistry()
 
49
 
 
50
    def test_register_unregister_format(self):
 
51
        format = SampleComponentFormat()
 
52
        self.registry.register(format)
 
53
        self.assertEqual(format,
 
54
            self.registry.get("Example component format."))
 
55
        self.registry.remove(format)
 
56
        self.assertRaises(KeyError, self.registry.get,
 
57
            "Example component format.")
 
58
 
 
59
    def test_get_all(self):
 
60
        format = SampleComponentFormat()
 
61
        self.assertEqual([], self.registry._get_all())
 
62
        self.registry.register(format)
 
63
        self.assertEqual([format], self.registry._get_all())
 
64
 
 
65
    def test_get_all_modules(self):
 
66
        format = SampleComponentFormat()
 
67
        self.assertEqual(set(), self.registry._get_all_modules())
 
68
        self.registry.register(format)
 
69
        self.assertEqual(
 
70
            {"breezy.tests.test_controldir"},
 
71
            self.registry._get_all_modules())
 
72
 
 
73
    def test_register_extra(self):
 
74
        format = SampleExtraComponentFormat()
 
75
        self.assertEqual([], self.registry._get_all())
 
76
        self.registry.register_extra(format)
 
77
        self.assertEqual([format], self.registry._get_all())
 
78
 
 
79
    def test_register_extra_lazy(self):
 
80
        self.assertEqual([], self.registry._get_all())
 
81
        self.registry.register_extra_lazy("breezy.tests.test_controldir",
 
82
            "SampleExtraComponentFormat")
 
83
        formats = self.registry._get_all()
 
84
        self.assertEqual(1, len(formats))
 
85
        self.assertIsInstance(formats[0], SampleExtraComponentFormat)
 
86
 
 
87
 
 
88
class TestProber(tests.TestCaseWithTransport):
 
89
    """Per-prober tests."""
 
90
 
 
91
    scenarios = [
 
92
        (prober_cls.__name__, {'prober_cls': prober_cls})
 
93
        for prober_cls in controldir.ControlDirFormat._probers]
 
94
 
 
95
    def setUp(self):
 
96
        super(TestProber, self).setUp()
 
97
        self.prober = self.prober_cls()
 
98
 
 
99
    def test_probe_transport_empty(self):
 
100
        transport = self.get_transport(".")
 
101
        self.assertRaises(errors.NotBranchError,
 
102
            self.prober.probe_transport, transport)
 
103
 
 
104
    def test_known_formats(self):
 
105
        known_formats = self.prober_cls.known_formats()
 
106
        self.assertIsInstance(known_formats, set)
 
107
        for format in known_formats:
 
108
            self.assertIsInstance(format, controldir.ControlDirFormat,
 
109
                repr(format))
 
110
 
 
111
 
 
112
class NotBzrDir(controldir.ControlDir):
 
113
    """A non .bzr based control directory."""
 
114
 
 
115
    def __init__(self, transport, format):
 
116
        self._format = format
 
117
        self.root_transport = transport
 
118
        self.transport = transport.clone('.not')
 
119
 
 
120
 
 
121
class NotBzrDirFormat(controldir.ControlDirFormat):
 
122
    """A test class representing any non-.bzr based disk format."""
 
123
 
 
124
    def initialize_on_transport(self, transport):
 
125
        """Initialize a new .not dir in the base directory of a Transport."""
 
126
        transport.mkdir('.not')
 
127
        return self.open(transport)
 
128
 
 
129
    def open(self, transport):
 
130
        """Open this directory."""
 
131
        return NotBzrDir(transport, self)
 
132
 
 
133
 
 
134
class NotBzrDirProber(controldir.Prober):
 
135
 
 
136
    def probe_transport(self, transport):
 
137
        """Our format is present if the transport ends in '.not/'."""
 
138
        if transport.has('.not'):
 
139
            return NotBzrDirFormat()
 
140
 
 
141
    @classmethod
 
142
    def known_formats(cls):
 
143
        return {NotBzrDirFormat()}
 
144
 
 
145
 
 
146
class TestNotBzrDir(tests.TestCaseWithTransport):
 
147
    """Tests for using the controldir api with a non .bzr based disk format.
 
148
 
 
149
    If/when one of these is in the core, we can let the implementation tests
 
150
    verify this works.
 
151
    """
 
152
 
 
153
    def test_create_and_find_format(self):
 
154
        # create a .notbzr dir
 
155
        format = NotBzrDirFormat()
 
156
        dir = format.initialize(self.get_url())
 
157
        self.assertIsInstance(dir, NotBzrDir)
 
158
        # now probe for it.
 
159
        controldir.ControlDirFormat.register_prober(NotBzrDirProber)
 
160
        try:
 
161
            found = controldir.ControlDirFormat.find_format(self.get_transport())
 
162
            self.assertIsInstance(found, NotBzrDirFormat)
 
163
        finally:
 
164
            controldir.ControlDirFormat.unregister_prober(NotBzrDirProber)
 
165
 
 
166
    def test_included_in_known_formats(self):
 
167
        controldir.ControlDirFormat.register_prober(NotBzrDirProber)
 
168
        self.addCleanup(controldir.ControlDirFormat.unregister_prober, NotBzrDirProber)
 
169
        formats = controldir.ControlDirFormat.known_formats()
 
170
        self.assertIsInstance(formats, set)
 
171
        for format in formats:
 
172
            if isinstance(format, NotBzrDirFormat):
 
173
                break
 
174
        else:
 
175
            self.fail("No NotBzrDirFormat in %s" % formats)
 
176
 
 
177
 
 
178
class UnsupportedControlComponentFormat(controldir.ControlComponentFormat):
 
179
 
 
180
    def is_supported(self):
 
181
        return False
 
182
 
 
183
 
 
184
class OldControlComponentFormat(controldir.ControlComponentFormat):
 
185
 
 
186
    def get_format_description(self):
 
187
        return "An old format that is slow"
 
188
 
 
189
    upgrade_recommended = True
 
190
 
 
191
 
 
192
class DefaultControlComponentFormatTests(tests.TestCase):
 
193
    """Tests for default ControlComponentFormat implementation."""
 
194
 
 
195
    def test_check_support_status_unsupported(self):
 
196
        self.assertRaises(errors.UnsupportedFormatError,
 
197
            UnsupportedControlComponentFormat().check_support_status,
 
198
            allow_unsupported=False)
 
199
        UnsupportedControlComponentFormat().check_support_status(
 
200
            allow_unsupported=True)
 
201
 
 
202
    def test_check_support_status_supported(self):
 
203
        controldir.ControlComponentFormat().check_support_status(
 
204
            allow_unsupported=False)
 
205
        controldir.ControlComponentFormat().check_support_status(
 
206
            allow_unsupported=True)
 
207
 
 
208
    def test_recommend_upgrade_current_format(self):
 
209
        ui.ui_factory = tests.TestUIFactory()
 
210
        format = controldir.ControlComponentFormat()
 
211
        format.check_support_status(allow_unsupported=False,
 
212
            recommend_upgrade=True)
 
213
        self.assertEqual("", ui.ui_factory.stderr.getvalue())
 
214
 
 
215
    def test_recommend_upgrade_old_format(self):
 
216
        ui.ui_factory = tests.TestUIFactory()
 
217
        format = OldControlComponentFormat()
 
218
        format.check_support_status(allow_unsupported=False,
 
219
            recommend_upgrade=False)
 
220
        self.assertEqual("", ui.ui_factory.stderr.getvalue())
 
221
        format.check_support_status(allow_unsupported=False,
 
222
            recommend_upgrade=True, basedir='apath')
 
223
        self.assertEqual(
 
224
            'An old format that is slow is deprecated and a better format '
 
225
            'is available.\nIt is recommended that you upgrade by running '
 
226
            'the command\n  brz upgrade apath\n',
 
227
            ui.ui_factory.stderr.getvalue())
 
228
 
 
229
 
 
230
class IsControlFilenameTest(tests.TestCase):
 
231
 
 
232
    def test_is_bzrdir(self):
 
233
        self.assertTrue(controldir.is_control_filename('.bzr'))
 
234
 
 
235
    def test_is_not_bzrdir(self):
 
236
        self.assertFalse(controldir.is_control_filename('.git'))
 
237
        self.assertFalse(controldir.is_control_filename('bla'))