1# The MIT License (MIT)
2#
3# Copyright (c) 2016 Damien Lespiau
4#
5# SPDX-License-Identifier: MIT
6#
7# Permission is hereby granted, free of charge, to any person obtaining a copy
8# of this software and associated documentation files (the "Software"), to deal
9# in the Software without restriction, including without limitation the rights
10# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11# copies of the Software, and to permit persons to whom the Software is
12# furnished to do so, subject to the following conditions:
13#
14# The above copyright notice and this permission notice shall be included in
15# all copies or substantial portions of the Software.
16#
17# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
20# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23# SOFTWARE.
24
25import sys
26
27try:
28    from StringIO import StringIO
29except ImportError:
30    from io import StringIO
31
32from contextlib import contextmanager
33
34from django.core import management
35from django.test import TestCase
36
37
38@contextmanager
39def capture(command, *args, **kwargs):
40    out, sys.stdout = sys.stdout, StringIO()
41    command(*args, **kwargs)
42    sys.stdout.seek(0)
43    yield sys.stdout.read()
44    sys.stdout = out
45
46
47def makemigrations():
48    management.call_command('makemigrations')
49
50
51class MigrationTest(TestCase):
52
53    def testPendingMigration(self):
54        """Make sure there's no pending migration."""
55
56        with capture(makemigrations) as output:
57            self.assertEqual(output, "No changes detected\n")
58