1 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 # Use of this source code is governed by a BSD-style license that can be
3 # found in the LICENSE file.
7 from telemetry.core import browser_options
8 from telemetry.core import discover
9 from telemetry.core import util
10 from telemetry.unittest import gtest_testrunner
11 from telemetry.unittest import options_for_unittests
13 def Discover(start_dir, top_level_dir=None, pattern='test*.py'):
14 loader = unittest.defaultTestLoader
15 loader.suiteClass = gtest_testrunner.GTestTestSuite
18 modules = discover.DiscoverModules(start_dir, top_level_dir, pattern)
19 for module in modules:
20 if hasattr(module, 'suite'):
21 new_suite = module.suite()
23 new_suite = loader.loadTestsFromModule(module)
24 if new_suite.countTestCases():
25 subsuites.append(new_suite)
26 return gtest_testrunner.GTestTestSuite(subsuites)
29 def FilterSuite(suite, predicate):
30 new_suite = suite.__class__()
32 if isinstance(x, unittest.TestSuite):
33 subsuite = FilterSuite(x, predicate)
34 if subsuite.countTestCases() == 0:
37 new_suite.addTest(subsuite)
40 assert isinstance(x, unittest.TestCase)
47 def DiscoverAndRunTests(
48 dir_name, args, top_level_dir,
49 runner=None, run_disabled_tests=False):
51 runner = gtest_testrunner.GTestTestRunner(inner=True)
53 suite = Discover(dir_name, top_level_dir, '*_unittest.py')
55 def IsTestSelected(test):
64 if hasattr(test, '_testMethodName'):
65 method = getattr(test, test._testMethodName) # pylint: disable=W0212
66 if hasattr(method, '_requires_browser_types'):
67 types = method._requires_browser_types # pylint: disable=W0212
68 if options_for_unittests.GetBrowserType() not in types:
69 logging.debug('Skipping test %s because it requires %s' %
72 if hasattr(method, '_disabled_test'):
73 if not run_disabled_tests:
78 filtered_suite = FilterSuite(suite, IsTestSelected)
79 test_result = runner.run(filtered_suite)
83 def RestoreLoggingLevel(func):
84 def _LoggingRestoreWrapper(*args, **kwargs):
85 # Cache the current logging level, this needs to be done before calling
86 # parser.parse_args, which changes logging level based on verbosity
88 logging_level = logging.getLogger().getEffectiveLevel()
90 return func(*args, **kwargs)
92 # Restore logging level, which may be changed in parser.parse_args.
93 logging.getLogger().setLevel(logging_level)
95 return _LoggingRestoreWrapper
99 def Main(args, start_dir, top_level_dir, runner=None):
100 """Unit test suite that collects all test cases for telemetry."""
101 # Add unittest_data to the path so we can import packages from it.
102 util.AddDirToPythonPath(util.GetUnittestDataDir())
104 default_options = browser_options.BrowserFinderOptions()
105 default_options.browser_type = 'any'
107 parser = default_options.CreateParser('run_tests [options] [test names]')
108 parser.add_option('--repeat-count', dest='run_test_repeat_count',
109 type='int', default=1,
110 help='Repeats each a provided number of times.')
111 parser.add_option('-d', '--also-run-disabled-tests',
112 dest='run_disabled_tests',
113 action='store_true', default=False,
114 help='Also run tests decorated with @DisabledTest.')
116 _, args = parser.parse_args(args)
118 if default_options.verbosity == 0:
119 logging.getLogger().setLevel(logging.WARN)
121 from telemetry.core import browser_finder
123 browser_to_create = browser_finder.FindBrowser(default_options)
124 except browser_finder.BrowserFinderException, ex:
125 logging.error(str(ex))
128 if browser_to_create == None:
129 logging.error('No browser found of type %s. Cannot run tests.',
130 default_options.browser_type)
131 logging.error('Re-run with --browser=list to see available browser types.')
134 options_for_unittests.Set(default_options,
135 browser_to_create.browser_type)
139 default_options.run_test_repeat_count): # pylint: disable=E1101
140 success = success and DiscoverAndRunTests(
141 start_dir, args, top_level_dir,
142 runner, default_options.run_disabled_tests)
146 options_for_unittests.Set(None, None)