Python test_support.CleanImport方法代码示例

# 需要导入模块: from test import test_support [as 别名]
# 或者: from test.test_support import CleanImport [as 别名]
def test_imp_module(self):
        # Verify that the imp module can correctly load and find .py files

        # XXX (ncoghlan): It would be nice to use test_support.CleanImport
        # here, but that breaks because the os module registers some
        # handlers in copy_reg on import. Since CleanImport doesn't
        # revert that registration, the module is left in a broken
        # state after reversion. Reinitialising the module contents
        # and just reverting os.environ to its previous state is an OK
        # workaround
        orig_path = os.path
        orig_getenv = os.getenv
        with EnvironmentVarGuard():
            x = imp.find_module("os")
            new_os = imp.load_module("os", *x)
            self.assertIs(os, new_os)
            self.assertIs(orig_path, new_os.path)
            self.assertIsNot(orig_getenv, new_os.getenv) 

# 需要导入模块: from test import test_support [as 别名]
# 或者: from test.test_support import CleanImport [as 别名]
def check_removal(self, module_name, optional=False):
        """Make sure the specified module, when imported, raises a
        DeprecationWarning and specifies itself in the message."""
        with CleanImport(module_name), warnings.catch_warnings():
            warnings.filterwarnings("error", ".+ (module|package) .+ removed",
                                    DeprecationWarning, __name__)
            warnings.filterwarnings("error", ".+ removed .+ (module|package)",
                                    DeprecationWarning, __name__)
            try:
                __import__(module_name, level=0)
            except DeprecationWarning as exc:
                self.assertIn(module_name, exc.args[0],
                              "%s warning didn't contain module name"
                              % module_name)
            except ImportError:
                if not optional:
                    self.fail("Non-optional module {0} raised an "
                              "ImportError.".format(module_name))
            else:
                # For extension modules, check the __warningregistry__.
                # They won't rerun their init code even with CleanImport.
                if not check_deprecated_module(module_name):
                    self.fail("DeprecationWarning not raised for {0}"
                              .format(module_name)) 

# 需要导入模块: from test import test_support [as 别名]
# 或者: from test.test_support import CleanImport [as 别名]
def check_removal(self, module_name, optional=False):
        """Make sure the specified module, when imported, raises a
        DeprecationWarning and specifies itself in the message."""
        if module_name in sys.modules:
            mod = sys.modules[module_name]
            filename = getattr(mod, '__file__', '')
            mod = None
            # the module is not implemented in C?
            if not filename.endswith(('.py', '.pyc', '.pyo')):
                # Issue #23375: If the module was already loaded, reimporting
                # the module will not emit again the warning. The warning is
                # emited when the module is loaded, but C modules cannot
                # unloaded.
                if test_support.verbose:
                    print("Cannot test the Python 3 DeprecationWarning of the "
                          "%s module, the C module is already loaded"
                          % module_name)
                return
        with CleanImport(module_name), warnings.catch_warnings():
            warnings.filterwarnings("error", ".+ (module|package) .+ removed",
                                    DeprecationWarning, __name__)
            warnings.filterwarnings("error", ".+ removed .+ (module|package)",
                                    DeprecationWarning, __name__)
            try:
                __import__(module_name, level=0)
            except DeprecationWarning as exc:
                self.assertIn(module_name, exc.args[0],
                              "%s warning didn't contain module name"
                              % module_name)
            except ImportError:
                if not optional:
                    self.fail("Non-optional module {0} raised an "
                              "ImportError.".format(module_name))
            else:
                # For extension modules, check the __warningregistry__.
                # They won't rerun their init code even with CleanImport.
                if not check_deprecated_module(module_name):
                    self.fail("DeprecationWarning not raised for {0}"
                              .format(module_name)) 

# 需要导入模块: from test import test_support [as 别名]
# 或者: from test.test_support import CleanImport [as 别名]
def test_source(self):
        # XXX (ncoghlan): It would be nice to use test_support.CleanImport
        # here, but that breaks because the os module registers some
        # handlers in copy_reg on import. Since CleanImport doesn't
        # revert that registration, the module is left in a broken
        # state after reversion. Reinitialising the module contents
        # and just reverting os.environ to its previous state is an OK
        # workaround
        with test_support.EnvironmentVarGuard():
            import os
            imp.reload(os) 

# 需要导入模块: from test import test_support [as 别名]
# 或者: from test.test_support import CleanImport [as 别名]
def test_extension(self):
        with test_support.CleanImport('time'):
            import time
            imp.reload(time) 

# 需要导入模块: from test import test_support [as 别名]
# 或者: from test.test_support import CleanImport [as 别名]
def test_builtin(self):
        with test_support.CleanImport('marshal'):
            import marshal
            imp.reload(marshal)