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Viewing changes to bzrlib/tests/test_controldir.py

  • Committer: Jelmer Vernooij
  • Date: 2012-01-24 13:14:06 UTC
  • mto: (6445.4.5 nested-trees-spec)
  • mto: This revision was merged to the branch mainline in revision 6518.
  • Revision ID: jelmer@samba.org-20120124131406-wedftkorbpv37bm0
Import nested tree doc from devnotes.

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# Copyright (C) 2011 Canonical Ltd
 
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#
 
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# This program is free software; you can redistribute it and/or modify
 
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# it under the terms of the GNU General Public License as published by
 
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# the Free Software Foundation; either version 2 of the License, or
 
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# (at your option) any later version.
 
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#
 
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# This program is distributed in the hope that it will be useful,
 
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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# GNU General Public License for more details.
 
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#
 
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# You should have received a copy of the GNU General Public License
 
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# along with this program; if not, write to the Free Software
 
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
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"""Tests for the ControlDir facility.
 
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For interface contract tests, see tests/per_control_dir.
 
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"""
 
21
 
 
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from bzrlib import (
 
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    controldir,
 
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    errors,
 
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    tests,
 
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    ui,
 
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    )
 
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from bzrlib.tests.scenarios import load_tests_apply_scenarios
 
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30
 
 
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load_tests = load_tests_apply_scenarios
 
32
 
 
33
 
 
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class SampleComponentFormat(controldir.ControlComponentFormat):
 
35
 
 
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    def get_format_string(self):
 
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        return "Example component format."
 
38
 
 
39
 
 
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class SampleExtraComponentFormat(controldir.ControlComponentFormat):
 
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    """Extra format, no format string."""
 
42
 
 
43
 
 
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class TestMetaComponentFormatRegistry(tests.TestCase):
 
45
 
 
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    def setUp(self):
 
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        super(TestMetaComponentFormatRegistry, self).setUp()
 
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        self.registry = controldir.ControlComponentFormatRegistry()
 
49
 
 
50
    def test_register_unregister_format(self):
 
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        format = SampleComponentFormat()
 
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        self.registry.register(format)
 
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        self.assertEquals(format,
 
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            self.registry.get("Example component format."))
 
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        self.registry.remove(format)
 
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        self.assertRaises(KeyError, self.registry.get,
 
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            "Example component format.")
 
58
 
 
59
    def test_get_all(self):
 
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        format = SampleComponentFormat()
 
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        self.assertEquals([], self.registry._get_all())
 
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        self.registry.register(format)
 
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        self.assertEquals([format], self.registry._get_all())
 
64
 
 
65
    def test_get_all_modules(self):
 
66
        format = SampleComponentFormat()
 
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        self.assertEquals(set(), self.registry._get_all_modules())
 
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        self.registry.register(format)
 
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        self.assertEquals(
 
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            set(["bzrlib.tests.test_controldir"]),
 
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            self.registry._get_all_modules())
 
72
 
 
73
    def test_register_extra(self):
 
74
        format = SampleExtraComponentFormat()
 
75
        self.assertEquals([], self.registry._get_all())
 
76
        self.registry.register_extra(format)
 
77
        self.assertEquals([format], self.registry._get_all())
 
78
 
 
79
    def test_register_extra_lazy(self):
 
80
        self.assertEquals([], self.registry._get_all())
 
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        self.registry.register_extra_lazy("bzrlib.tests.test_controldir",
 
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            "SampleExtraComponentFormat")
 
83
        formats = self.registry._get_all()
 
84
        self.assertEquals(1, len(formats))
 
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        self.assertIsInstance(formats[0], SampleExtraComponentFormat)
 
86
 
 
87
 
 
88
class TestControlDirFormatDeprecated(tests.TestCaseWithTransport):
 
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    """Tests for removed registration method in the ControlDirFormat facility."""
 
90
 
 
91
    def test_register_format(self):
 
92
        self.assertRaises(errors.BzrError,
 
93
            controldir.ControlDirFormat.register_format, object())
 
94
 
 
95
 
 
96
class TestProber(tests.TestCaseWithTransport):
 
97
    """Per-prober tests."""
 
98
 
 
99
    scenarios = [
 
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        (prober_cls.__name__, {'prober_cls': prober_cls})
 
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        for prober_cls in controldir.ControlDirFormat._probers]
 
102
 
 
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    def setUp(self):
 
104
        super(TestProber, self).setUp()
 
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        self.prober = self.prober_cls()
 
106
 
 
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    def test_probe_transport_empty(self):
 
108
        transport = self.get_transport(".")
 
109
        self.assertRaises(errors.NotBranchError,
 
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            self.prober.probe_transport, transport)
 
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112
    def test_known_formats(self):
 
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        known_formats = self.prober_cls.known_formats()
 
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        self.assertIsInstance(known_formats, set)
 
115
        for format in known_formats:
 
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            self.assertIsInstance(format, controldir.ControlDirFormat,
 
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                repr(format))
 
118
 
 
119
 
 
120
class NotBzrDir(controldir.ControlDir):
 
121
    """A non .bzr based control directory."""
 
122
 
 
123
    def __init__(self, transport, format):
 
124
        self._format = format
 
125
        self.root_transport = transport
 
126
        self.transport = transport.clone('.not')
 
127
 
 
128
 
 
129
class NotBzrDirFormat(controldir.ControlDirFormat):
 
130
    """A test class representing any non-.bzr based disk format."""
 
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    def initialize_on_transport(self, transport):
 
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        """Initialize a new .not dir in the base directory of a Transport."""
 
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        transport.mkdir('.not')
 
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        return self.open(transport)
 
136
 
 
137
    def open(self, transport):
 
138
        """Open this directory."""
 
139
        return NotBzrDir(transport, self)
 
140
 
 
141
 
 
142
class NotBzrDirProber(controldir.Prober):
 
143
 
 
144
    def probe_transport(self, transport):
 
145
        """Our format is present if the transport ends in '.not/'."""
 
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        if transport.has('.not'):
 
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            return NotBzrDirFormat()
 
148
 
 
149
    @classmethod
 
150
    def known_formats(cls):
 
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        return set([NotBzrDirFormat()])
 
152
 
 
153
 
 
154
class TestNotBzrDir(tests.TestCaseWithTransport):
 
155
    """Tests for using the controldir api with a non .bzr based disk format.
 
156
 
 
157
    If/when one of these is in the core, we can let the implementation tests
 
158
    verify this works.
 
159
    """
 
160
 
 
161
    def test_create_and_find_format(self):
 
162
        # create a .notbzr dir
 
163
        format = NotBzrDirFormat()
 
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        dir = format.initialize(self.get_url())
 
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        self.assertIsInstance(dir, NotBzrDir)
 
166
        # now probe for it.
 
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        controldir.ControlDirFormat.register_prober(NotBzrDirProber)
 
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        try:
 
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            found = controldir.ControlDirFormat.find_format(self.get_transport())
 
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            self.assertIsInstance(found, NotBzrDirFormat)
 
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        finally:
 
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            controldir.ControlDirFormat.unregister_prober(NotBzrDirProber)
 
173
 
 
174
    def test_included_in_known_formats(self):
 
175
        controldir.ControlDirFormat.register_prober(NotBzrDirProber)
 
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        self.addCleanup(controldir.ControlDirFormat.unregister_prober, NotBzrDirProber)
 
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        formats = controldir.ControlDirFormat.known_formats()
 
178
        self.assertIsInstance(formats, set)
 
179
        for format in formats:
 
180
            if isinstance(format, NotBzrDirFormat):
 
181
                break
 
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        else:
 
183
            self.fail("No NotBzrDirFormat in %s" % formats)
 
184
 
 
185
 
 
186
class UnsupportedControlComponentFormat(controldir.ControlComponentFormat):
 
187
 
 
188
    def is_supported(self):
 
189
        return False
 
190
 
 
191
 
 
192
class OldControlComponentFormat(controldir.ControlComponentFormat):
 
193
 
 
194
    def get_format_description(self):
 
195
        return "An old format that is slow"
 
196
 
 
197
    upgrade_recommended = True
 
198
 
 
199
 
 
200
class DefaultControlComponentFormatTests(tests.TestCase):
 
201
    """Tests for default ControlComponentFormat implementation."""
 
202
 
 
203
    def test_check_support_status_unsupported(self):
 
204
        self.assertRaises(errors.UnsupportedFormatError,
 
205
            UnsupportedControlComponentFormat().check_support_status,
 
206
            allow_unsupported=False)
 
207
        UnsupportedControlComponentFormat().check_support_status(
 
208
            allow_unsupported=True)
 
209
 
 
210
    def test_check_support_status_supported(self):
 
211
        controldir.ControlComponentFormat().check_support_status(
 
212
            allow_unsupported=False)
 
213
        controldir.ControlComponentFormat().check_support_status(
 
214
            allow_unsupported=True)
 
215
 
 
216
    def test_recommend_upgrade_current_format(self):
 
217
        stderr = tests.StringIOWrapper()
 
218
        ui.ui_factory = tests.TestUIFactory(stderr=stderr)
 
219
        format = controldir.ControlComponentFormat()
 
220
        format.check_support_status(allow_unsupported=False,
 
221
            recommend_upgrade=True)
 
222
        self.assertEquals("", stderr.getvalue())
 
223
 
 
224
    def test_recommend_upgrade_old_format(self):
 
225
        stderr = tests.StringIOWrapper()
 
226
        ui.ui_factory = tests.TestUIFactory(stderr=stderr)
 
227
        format = OldControlComponentFormat()
 
228
        format.check_support_status(allow_unsupported=False,
 
229
            recommend_upgrade=False)
 
230
        self.assertEquals("", stderr.getvalue())
 
231
        format.check_support_status(allow_unsupported=False,
 
232
            recommend_upgrade=True, basedir='apath')
 
233
        self.assertEquals(
 
234
            'An old format that is slow is deprecated and a better format '
 
235
            'is available.\nIt is recommended that you upgrade by running '
 
236
            'the command\n  bzr upgrade apath\n',
 
237
            stderr.getvalue())