Save bits of the test environment and restore them at block exit. with saved_test_environment(test_name, verbose, quiet): #stuff Unless quiet is True, a warning is printed to stderr if any of the saved items was changed by the test. The support.environment_altered a
| 30 | # the following context manager handles this task. |
| 31 | |
| 32 | class saved_test_environment: |
| 33 | """Save bits of the test environment and restore them at block exit. |
| 34 | |
| 35 | with saved_test_environment(test_name, verbose, quiet): |
| 36 | #stuff |
| 37 | |
| 38 | Unless quiet is True, a warning is printed to stderr if any of |
| 39 | the saved items was changed by the test. The support.environment_altered |
| 40 | attribute is set to True if a change is detected. |
| 41 | |
| 42 | If verbose is more than 1, the before and after state of changed |
| 43 | items is also printed. |
| 44 | """ |
| 45 | |
| 46 | def __init__(self, test_name, verbose, quiet, *, pgo): |
| 47 | self.test_name = test_name |
| 48 | self.verbose = verbose |
| 49 | self.quiet = quiet |
| 50 | self.pgo = pgo |
| 51 | |
| 52 | # To add things to save and restore, add a name XXX to the resources list |
| 53 | # and add corresponding get_XXX/restore_XXX functions. get_XXX should |
| 54 | # return the value to be saved and compared against a second call to the |
| 55 | # get function when test execution completes. restore_XXX should accept |
| 56 | # the saved value and restore the resource using it. It will be called if |
| 57 | # and only if a change in the value is detected. |
| 58 | # |
| 59 | # Note: XXX will have any '.' replaced with '_' characters when determining |
| 60 | # the corresponding method names. |
| 61 | |
| 62 | resources = ('sys.argv', 'cwd', 'sys.stdin', 'sys.stdout', 'sys.stderr', |
| 63 | 'os.environ', 'sys.path', 'sys.path_hooks', '__import__', |
| 64 | 'warnings.filters', 'asyncore.socket_map', |
| 65 | 'logging._handlers', 'logging._handlerList', 'sys.gettrace', |
| 66 | 'sys.warnoptions', |
| 67 | # multiprocessing.process._cleanup() may release ref |
| 68 | # to a thread, so check processes first. |
| 69 | 'multiprocessing.process._dangling', 'threading._dangling', |
| 70 | 'sysconfig._CONFIG_VARS', 'sysconfig._INSTALL_SCHEMES', |
| 71 | 'files', 'locale', 'warnings.showwarning', |
| 72 | 'shutil_archive_formats', 'shutil_unpack_formats', |
| 73 | 'asyncio.events._event_loop_policy', |
| 74 | 'urllib.requests._url_tempfiles', 'urllib.requests._opener', |
| 75 | 'stty_echo', |
| 76 | ) |
| 77 | |
| 78 | def get_module(self, name): |
| 79 | # function for restore() methods |
| 80 | return sys.modules[name] |
| 81 | |
| 82 | def try_get_module(self, name): |
| 83 | # function for get() methods |
| 84 | try: |
| 85 | return self.get_module(name) |
| 86 | except KeyError: |
| 87 | raise SkipTestEnvironment |
| 88 | |
| 89 | def get_urllib_requests__url_tempfiles(self): |
no test coverage detected