python-json-patch/ext_tests.py at master · stefankoegl/python-json-patch · GitHub

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
#!/usr/bin/env python
#
# python-json-patch - An implementation of the JSON Patch format
# https://github.com/stefankoegl/python-json-patch
#
# Copyright (c) 2011 Stefan Kögl <stefan@skoegl.net>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice,
#    this list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright notice,
#    this list of conditions and the following disclaimer in the documentation
#    and/or other materials provided with the distribution.
#
# 3. Neither the name of the copyright holder nor the names of its
#    contributors may be used to endorse or promote products derived from this
#    software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#

""" Script to run external tests, eg from
https://github.com/json-patch/json-patch-tests """

import json
import unittest
import jsonpatch
import sys


class TestCaseTemplate(unittest.TestCase):
    """ A generic test case for running external tests """

    def _test(self, test):
        if 'doc' not in test or 'patch' not in test:
            # incomplete
            return

        if test.get('disabled', False):
            # test is disabled
            return

        if 'error' in test:
            self.assertRaises(
                (jsonpatch.JsonPatchException, jsonpatch.JsonPointerException),
                jsonpatch.apply_patch, test['doc'], test['patch']
                )

        else:
            try:
                res = jsonpatch.apply_patch(test['doc'], test['patch'])
            except jsonpatch.JsonPatchException as jpe:
                raise Exception(test.get('comment', '')) from jpe

            # if there is no 'expected' we only verify that applying the patch
            # does not raise an exception
            if 'expected' in test:
                self.assertEqual(res, test['expected'], test.get('comment', ''))


def make_test_case(tests):

    class MyTestCase(TestCaseTemplate):
        pass

    for n, test in enumerate(tests):
        add_test_method(MyTestCase, 'test_%d' % n, test)

    return MyTestCase


def add_test_method(cls, name, test):
    setattr(cls, name, lambda self: self._test(test))


def get_suite(filenames):
    suite = unittest.TestSuite()

    for testfile in filenames:
        with open(testfile, encoding='utf-8') as f:
            tests = json.load(f)
        cls = make_test_case(tests)
        suite.addTest(unittest.defaultTestLoader.loadTestsFromTestCase(cls))

    return suite


if __name__ == '__main__':
    result = unittest.TextTestRunner(verbosity=1).run(get_suite(sys.argv[1:]))
    sys.exit(not result.wasSuccessful())