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
186
187
188
189
190
191
192
193
194
195
|
#
# Copyright (C) 2019 Red Hat, Inc. All rights reserved.
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
# USA
#
import unittest
from dasbus.error import ErrorMapper, DBusError, get_error_decorator, ErrorRule
class ExceptionA(Exception):
"""My testing exception A."""
pass
class ExceptionA1(ExceptionA):
"""My testing exception A1."""
pass
class ExceptionA2(ExceptionA):
"""My testing exception A2."""
pass
class ExceptionB(Exception):
"""My testing exception B."""
pass
class ExceptionC(Exception):
"""My testing exception C."""
pass
class CustomRule(ErrorRule):
"""My custom rule for subclasses."""
def match_type(self, exception_type):
return issubclass(exception_type, self._exception_type)
class DBusErrorTestCase(unittest.TestCase):
"""Test the DBus error register and handler."""
def setUp(self):
self.error_mapper = ErrorMapper()
def _check_type(self, error_name, expected_type):
exception_type = self.error_mapper.get_exception_type(error_name)
self.assertEqual(exception_type, expected_type)
def _check_name(self, exception_type, expected_name):
error_name = self.error_mapper.get_error_name(exception_type)
self.assertEqual(error_name, expected_name)
def test_decorators(self):
"""Test the error decorators."""
dbus_error = get_error_decorator(self.error_mapper)
@dbus_error("org.test.ErrorA")
class DecoratedA(Exception):
pass
@dbus_error("ErrorB", namespace=("org", "test"))
class DecoratedB(Exception):
pass
self._check_name(DecoratedA, "org.test.ErrorA")
self._check_type("org.test.ErrorA", DecoratedA)
self._check_name(DecoratedB, "org.test.ErrorB")
self._check_type("org.test.ErrorB", DecoratedB)
def test_simple_rule(self):
"""Test a simple rule."""
self.error_mapper.add_rule(ErrorRule(
exception_type=ExceptionA,
error_name="org.test.ErrorA"
))
self._check_name(ExceptionA, "org.test.ErrorA")
self._check_name(ExceptionA1, "not.known.Error.ExceptionA1")
self._check_name(ExceptionA2, "not.known.Error.ExceptionA2")
self._check_type("org.test.ErrorA", ExceptionA)
self._check_type("org.test.ErrorA1", DBusError)
self._check_type("org.test.ErrorA2", DBusError)
self._check_name(ExceptionB, "not.known.Error.ExceptionB")
self._check_type("org.test.ErrorB", DBusError)
def test_custom_rule(self):
"""Test a custom rule."""
self.error_mapper.add_rule(CustomRule(
exception_type=ExceptionA,
error_name="org.test.ErrorA"
))
self._check_name(ExceptionA, "org.test.ErrorA")
self._check_name(ExceptionA1, "org.test.ErrorA")
self._check_name(ExceptionA2, "org.test.ErrorA")
self._check_type("org.test.ErrorA", ExceptionA)
self._check_type("org.test.ErrorA1", DBusError)
self._check_type("org.test.ErrorA2", DBusError)
self._check_name(ExceptionB, "not.known.Error.ExceptionB")
self._check_type("org.test.ErrorB", DBusError)
def test_several_rules(self):
"""Test several rules."""
self.error_mapper.add_rule(ErrorRule(
exception_type=ExceptionA,
error_name="org.test.ErrorA"
))
self.error_mapper.add_rule(ErrorRule(
exception_type=ExceptionB,
error_name="org.test.ErrorB"
))
self._check_name(ExceptionA, "org.test.ErrorA")
self._check_name(ExceptionB, "org.test.ErrorB")
self._check_name(ExceptionC, "not.known.Error.ExceptionC")
self._check_type("org.test.ErrorA", ExceptionA)
self._check_type("org.test.ErrorB", ExceptionB)
self._check_type("org.test.ErrorC", DBusError)
def test_rule_priorities(self):
"""Test the priorities of the rules."""
self.error_mapper.add_rule(ErrorRule(
exception_type=ExceptionA,
error_name="org.test.ErrorA1"
))
self._check_name(ExceptionA, "org.test.ErrorA1")
self._check_type("org.test.ErrorA1", ExceptionA)
self._check_type("org.test.ErrorA2", DBusError)
self.error_mapper.add_rule(ErrorRule(
exception_type=ExceptionA,
error_name="org.test.ErrorA2"
))
self._check_name(ExceptionA, "org.test.ErrorA2")
self._check_type("org.test.ErrorA1", ExceptionA)
self._check_type("org.test.ErrorA2", ExceptionA)
def test_default_mapping(self):
"""Test the default error mapping."""
self._check_name(ExceptionA, "not.known.Error.ExceptionA")
self._check_type("org.test.ErrorB", DBusError)
self._check_type("org.test.ErrorC", DBusError)
def test_default_class(self):
"""Test the default class."""
self._check_type("org.test.ErrorA", DBusError)
def test_default_namespace(self):
"""Test the default namespace."""
self._check_name(ExceptionA, "not.known.Error.ExceptionA")
def test_failed_mapping(self):
"""Test the failed mapping."""
self.error_mapper._error_rules = []
with self.assertRaises(LookupError) as cm:
self.error_mapper.get_error_name(ExceptionA)
self.assertEqual(
"No name found for 'ExceptionA'.",
str(cm.exception)
)
with self.assertRaises(LookupError) as cm:
self.error_mapper.get_exception_type("org.test.ErrorA")
self.assertEqual(
"No type found for 'org.test.ErrorA'.",
str(cm.exception)
)
|
