diff options
Diffstat (limited to 'Lib/test')
| -rw-r--r-- | Lib/test/test_import/__init__.py | 28 | ||||
| -rw-r--r-- | Lib/test/test_import/data/package/__init__.py | 2 | ||||
| -rw-r--r-- | Lib/test/test_import/data/package/submodule.py | 0 |
3 files changed, 30 insertions, 0 deletions
diff --git a/Lib/test/test_import/__init__.py b/Lib/test/test_import/__init__.py index 4aca9e597c..3291d0896c 100644 --- a/Lib/test/test_import/__init__.py +++ b/Lib/test/test_import/__init__.py @@ -10,6 +10,8 @@ import py_compile import random import stat import sys +import threading +import time import unittest import unittest.mock as mock import textwrap @@ -350,6 +352,32 @@ class ImportTests(unittest.TestCase): with self.assertRaises(ImportError): from test_from_import_AttributeError import does_not_exist + def test_concurrency(self): + sys.path.insert(0, os.path.join(os.path.dirname(__file__), 'data')) + try: + exc = None + def run(): + event.wait() + try: + import package + except BaseException as e: + nonlocal exc + exc = e + + for i in range(10): + event = threading.Event() + threads = [threading.Thread(target=run) for x in range(2)] + try: + with test.support.start_threads(threads, event.set): + time.sleep(0) + finally: + sys.modules.pop('package', None) + sys.modules.pop('package.submodule', None) + if exc is not None: + raise exc + finally: + del sys.path[0] + @skip_if_dont_write_bytecode class FilePermissionTests(unittest.TestCase): diff --git a/Lib/test/test_import/data/package/__init__.py b/Lib/test/test_import/data/package/__init__.py new file mode 100644 index 0000000000..a4f2bc3400 --- /dev/null +++ b/Lib/test/test_import/data/package/__init__.py @@ -0,0 +1,2 @@ +import package.submodule +package.submodule diff --git a/Lib/test/test_import/data/package/submodule.py b/Lib/test/test_import/data/package/submodule.py new file mode 100644 index 0000000000..e69de29bb2 --- /dev/null +++ b/Lib/test/test_import/data/package/submodule.py |