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PASSED = 1 FAILED = 0 ENV_CHANGED = -1 SKIPPED = -2 RESOURCE_DENIED = -3 INTERRUPTED = -4 CHILD_ERROR = -5 # error in a child process TEST_DID_NOT_RUN = -6 # error in a child process _FORMAT_TEST_RESULT = { PASSED: '%s passed', FAILED: '%s failed', ENV_CHANGED: '%s failed (env changed)', SKIPPED: '%s skipped', RESOURCE_DENIED: '%s skipped (resource denied)', INTERRUPTED: '%s interrupted', CHILD_ERROR: '%s crashed', TEST_DID_NOT_RUN: '%s run no tests', } # Minimum duration of a test to display its duration or to mention that # the test is running in background PROGRESS_MIN_TIME = 30.0 # seconds # small set of tests to determine if we have a basically functioning interpreter # (i.e. if any of these fail, then anything else is likely to follow) STDTESTS = [ 'test_grammar', 'test_opcodes', 'test_dict', 'test_builtin', 'test_exceptions', 'test_types', 'test_unittest', 'test_doctest', 'test_doctest2', 'test_support' ] # set of tests that we don't want to be executed when using regrtest NOTTESTS = set() def format_test_result(test_name, result): fmt = _FORMAT_TEST_RESULT.get(result, "%s") return fmt % test_name def findtests(testdir=None, stdtests=STDTESTS, nottests=NOTTESTS): """Return a list of all applicable test modules.""" testdir = findtestdir(testdir) names = os.listdir(testdir) tests = [] others = set(stdtests) | nottests for name in names: mod, ext = os.path.splitext(name) if mod[:5] == "test_" and ext in (".py", "") and mod not in others: tests.append(mod) return stdtests + sorted(tests) def get_abs_module(ns, test): if test.startswith('test.') or ns.testdir: return test else: # Always import it from the test package return 'test.' + test def runtest(ns, test): """Run a single test. ns -- regrtest namespace of options test -- the name of the test Returns the tuple (result, test_time, xml_data), where result is one of the constants: INTERRUPTED KeyboardInterrupt when run under -j RESOURCE_DENIED test skipped because resource denied SKIPPED test skipped for some other reason ENV_CHANGED test failed because it changed the execution environment FAILED test failed PASSED test passed EMPTY_TEST_SUITE test ran no subtests. If ns.xmlpath is not None, xml_data is a list containing each generated testsuite element. """ output_on_failure = ns.verbose3 use_timeout = (ns.timeout is not None) if use_timeout: faulthandler.dump_traceback_later(ns.timeout, exit=True) try: support.set_match_tests(ns.match_tests) # reset the environment_altered flag to detect if a test altered # the environment support.environment_altered = False support.junit_xml_list = xml_list = [] if ns.xmlpath else None if ns.failfast: support.failfast = True if output_on_failure: support.verbose = True stream = io.StringIO() orig_stdout = sys.stdout orig_stderr = sys.stderr try: sys.stdout = stream sys.stderr = stream result = runtest_inner(ns, test, display_failure=False) if result[0] != PASSED: output = stream.getvalue() orig_stderr.write(output) orig_stderr.flush() finally: sys.stdout = orig_stdout sys.stderr = orig_stderr else: support.verbose = ns.verbose # Tell tests to be moderately quiet result = runtest_inner(ns, test, display_failure=not ns.verbose) if xml_list: import xml.etree.ElementTree as ET xml_data = [ET.tostring(x).decode('us-ascii') for x in xml_list] else: xml_data = None return result + (xml_data,) finally: if use_timeout: faulthandler.cancel_dump_traceback_later() cleanup_test_droppings(test, ns.verbose) support.junit_xml_list = None def post_test_cleanup(): support.reap_children() def runtest_inner(ns, test, display_failure=True): support.unload(test) test_time = 0.0 refleak = False # True if the test leaked references. try: abstest = get_abs_module(ns, test) clear_caches() with saved_test_environment(test, ns.verbose, ns.quiet, pgo=ns.pgo) as environment: start_time = time.time() the_module = importlib.import_module(abstest) # If the test has a test_main, that will run the appropriate # tests. If not, use normal unittest test loading. test_runner = getattr(the_module, "test_main", None) if test_runner is None: def test_runner(): loader = unittest.TestLoader() tests = loader.loadTestsFromModule(the_module) for error in loader.errors: print(error, file=sys.stderr) if loader.errors: raise Exception("errors while loading tests") support.run_unittest(tests) if ns.huntrleaks: refleak = dash_R(the_module, test, test_runner, ns.huntrleaks) else: test_runner() test_time = time.time() - start_time post_test_cleanup() except support.ResourceDenied as msg: if not ns.quiet and not ns.pgo: print(test, "skipped --", msg, flush=True) return RESOURCE_DENIED, test_time except unittest.SkipTest as msg: if not ns.quiet and not ns.pgo: print(test, "skipped --", msg, flush=True) return SKIPPED, test_time except KeyboardInterrupt: raise except support.TestFailed as msg: if not ns.pgo: if display_failure: print("test", test, "failed --", msg, file=sys.stderr, flush=True) else: print("test", test, "failed", file=sys.stderr, flush=True) return FAILED, test_time except support.TestDidNotRun: return TEST_DID_NOT_RUN, test_time except: msg = traceback.format_exc() if not ns.pgo: print("test", test, "crashed --", msg, file=sys.stderr, flush=True) return FAILED, test_time else: if refleak: return FAILED, test_time if environment.changed: return ENV_CHANGED, test_time return PASSED, test_time def cleanup_test_droppings(testname, verbose): import shutil import stat import gc # First kill any dangling references to open files etc. # This can also issue some ResourceWarnings which would otherwise get # triggered during the following test run, and possibly produce failures. gc.collect() # Try to clean up junk commonly left behind. While tests shouldn't leave # any files or directories behind, when a test fails that can be tedious # for it to arrange. The consequences can be especially nasty on Windows, # since if a test leaves a file open, it cannot be deleted by name (while # there's nothing we can do about that here either, we can display the # name of the offending test, which is a real help). for name in (support.TESTFN, "db_home", ): if not os.path.exists(name): continue if os.path.isdir(name): kind, nuker = "directory", shutil.rmtree elif os.path.isfile(name): kind, nuker = "file", os.unlink else: raise SystemError("os.path says %r exists but is neither " "directory nor file" % name) if verbose: print("%r left behind %s %r" % (testname, kind, name)) try: # if we have chmod, fix possible permissions problems # that might prevent cleanup if (hasattr(os, 'chmod')): os.chmod(name, stat.S_IRWXU | stat.S_IRWXG | stat.S_IRWXO) nuker(name) except Exception as msg: print(("%r left behind %s %r and it couldn't be " "removed: %s" % (testname, kind, name, msg)), file=sys.stderr) def findtestdir(path=None): return path or os.path.dirname(os.path.dirname(__file__)) or os.curdir