1#!/usr/bin/env python
2#
3# Copyright 2019 The Android Open Source Project
4#
5# Licensed under the Apache License, Version 2.0 (the "License");
6# you may not use this file except in compliance with the License.
7# You may obtain a copy of the License at
8#
9# http://www.apache.org/licenses/LICENSE-2.0
10#
11# Unless required by applicable law or agreed to in writing, software
12# distributed under the License is distributed on an "AS IS" BASIS,
13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14# See the License for the specific language governing permissions and
15# limitations under the License.
16"""Main entrypoint for all of atest's unittest."""
17
18import os
19import sys
20import unittest
21from importlib import import_module
22
23
24def get_test_modules():
25    """Returns a list of test modules.
26
27    Finds all the test files (*_test.py) and get their relative
28    path (internal/lib/utils_test.py) and translate it to an import path and
29    strip the py ext (internal.lib.utils_test).
30
31    Returns:
32        List of strings (the testable module import path).
33    """
34    testable_modules = []
35    base_path = os.path.dirname(os.path.realpath(__file__))
36
37    for dirpath, _, files in os.walk(base_path):
38        for f in files:
39            if f.endswith("_test.py"):
40                # Now transform it into a relative import path.
41                full_file_path = os.path.join(dirpath, f)
42                rel_file_path = os.path.relpath(full_file_path, base_path)
43                rel_file_path, _ = os.path.splitext(rel_file_path)
44                rel_file_path = rel_file_path.replace(os.sep, ".")
45                testable_modules.append(rel_file_path)
46
47    return testable_modules
48
49
50def main(_):
51    """Main unittest entry.
52
53    Args:
54        argv: A list of system arguments. (unused)
55
56    Returns:
57        0 if success. None-zero if fails.
58    """
59    # Force remove syspath related to atest to make sure the env is clean.
60    # These tests need to run in isolation (to find bugs like b/132086641)
61    # so we scrub out all atest modules.
62    for path in sys.path:
63        if path.endswith('/atest'):
64            sys.path.remove(path)
65    test_modules = get_test_modules()
66    for mod in test_modules:
67        import_module(mod)
68
69    loader = unittest.defaultTestLoader
70    test_suite = loader.loadTestsFromNames(test_modules)
71    runner = unittest.TextTestRunner(verbosity=2)
72    result = runner.run(test_suite)
73    sys.exit(not result.wasSuccessful())
74
75
76if __name__ == '__main__':
77    main(sys.argv[1:])
78