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1# DExTer : Debugging Experience Tester
2# ~~~~~~   ~         ~~         ~   ~~
3#
4# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5# See https://llvm.org/LICENSE.txt for license information.
6# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7"""Unit test harness."""
8
9from fnmatch import fnmatch
10import os
11import unittest
12
13from io import StringIO
14
15from dex.utils import is_native_windows, has_pywin32
16from dex.utils import PreserveAutoColors, PrettyOutput
17from dex.utils import Timer
18
19
20class DexTestLoader(unittest.TestLoader):
21    def _match_path(self, path, full_path, pattern):
22        """Don't try to import platform-specific modules for the wrong platform
23        during test discovery.
24        """
25        d = os.path.basename(os.path.dirname(full_path))
26        if is_native_windows():
27            if d == 'posix':
28                return False
29            if d == 'windows':
30                return has_pywin32()
31        else:
32            if d == 'windows':
33                return False
34            elif d == 'dbgeng':
35                return False
36        return fnmatch(path, pattern)
37
38
39def unit_tests_ok(context):
40    unittest.TestCase.maxDiff = None  # remove size limit from diff output.
41
42    with Timer('unit tests'):
43        suite = DexTestLoader().discover(
44            context.root_directory, pattern='*.py')
45        stream = StringIO()
46        result = unittest.TextTestRunner(verbosity=2, stream=stream).run(suite)
47
48        ok = result.wasSuccessful()
49        if not ok or context.options.unittest == 'show-all':
50            with PreserveAutoColors(context.o):
51                context.o.auto_reds.extend(
52                    [r'FAIL(ED|\:)', r'\.\.\.\s(FAIL|ERROR)$'])
53                context.o.auto_greens.extend([r'^OK$', r'\.\.\.\sok$'])
54                context.o.auto_blues.extend([r'^Ran \d+ test'])
55                context.o.default('\n')
56                for line in stream.getvalue().splitlines(True):
57                    context.o.auto(line, stream=PrettyOutput.stderr)
58
59        return ok
60
61
62class TestUnitTests(unittest.TestCase):
63    def test_sanity(self):
64        self.assertEqual(1, 1)
65