Uploaded Test files

venv/Lib/site-packages/tornado/test/import_test.py

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+# flake8: noqa
+import subprocess
+import sys
+import unittest
+
+_import_everything = b"""
+# The event loop is not fork-safe, and it's easy to initialize an asyncio.Future
+# at startup, which in turn creates the default event loop and prevents forking.
+# Explicitly disallow the default event loop so that an error will be raised
+# if something tries to touch it.
+import asyncio
+asyncio.set_event_loop(None)
+
+import tornado.auth
+import tornado.autoreload
+import tornado.concurrent
+import tornado.escape
+import tornado.gen
+import tornado.http1connection
+import tornado.httpclient
+import tornado.httpserver
+import tornado.httputil
+import tornado.ioloop
+import tornado.iostream
+import tornado.locale
+import tornado.log
+import tornado.netutil
+import tornado.options
+import tornado.process
+import tornado.simple_httpclient
+import tornado.tcpserver
+import tornado.tcpclient
+import tornado.template
+import tornado.testing
+import tornado.util
+import tornado.web
+import tornado.websocket
+import tornado.wsgi
+
+try:
+    import pycurl
+except ImportError:
+    pass
+else:
+    import tornado.curl_httpclient
+"""
+
+
+class ImportTest(unittest.TestCase):
+    def test_import_everything(self):
+        # Test that all Tornado modules can be imported without side effects,
+        # specifically without initializing the default asyncio event loop.
+        # Since we can't tell which modules may have already beein imported
+        # in our process, do it in a subprocess for a clean slate.
+        proc = subprocess.Popen([sys.executable], stdin=subprocess.PIPE)
+        proc.communicate(_import_everything)
+        self.assertEqual(proc.returncode, 0)
+
+    def test_import_aliases(self):
+        # Ensure we don't delete formerly-documented aliases accidentally.
+        import tornado.ioloop
+        import tornado.gen
+        import tornado.util
+
+        self.assertIs(tornado.ioloop.TimeoutError, tornado.util.TimeoutError)
+        self.assertIs(tornado.gen.TimeoutError, tornado.util.TimeoutError)