Update cherrpy to 17.4.2

lib/cherrypy/test/test_refleaks.py

@@ -0,0 +1,66 @@
+"""Tests for refleaks."""
+
+import itertools
+import platform
+import threading
+
+from six.moves.http_client import HTTPConnection
+
+import cherrypy
+from cherrypy._cpcompat import HTTPSConnection
+from cherrypy.test import helper
+
+
+data = object()
+
+
+class ReferenceTests(helper.CPWebCase):
+
+    @staticmethod
+    def setup_server():
+
+        class Root:
+
+            @cherrypy.expose
+            def index(self, *args, **kwargs):
+                cherrypy.request.thing = data
+                return 'Hello world!'
+
+        cherrypy.tree.mount(Root())
+
+    def test_threadlocal_garbage(self):
+        if platform.system() == 'Darwin':
+            self.skip('queue issues; see #1474')
+        success = itertools.count()
+
+        def getpage():
+            host = '%s:%s' % (self.interface(), self.PORT)
+            if self.scheme == 'https':
+                c = HTTPSConnection(host)
+            else:
+                c = HTTPConnection(host)
+            try:
+                c.putrequest('GET', '/')
+                c.endheaders()
+                response = c.getresponse()
+                body = response.read()
+                self.assertEqual(response.status, 200)
+                self.assertEqual(body, b'Hello world!')
+            finally:
+                c.close()
+            next(success)
+
+        ITERATIONS = 25
+
+        ts = [
+            threading.Thread(target=getpage)
+            for _ in range(ITERATIONS)
+        ]
+
+        for t in ts:
+            t.start()
+
+        for t in ts:
+            t.join()
+
+        self.assertEqual(next(success), ITERATIONS)