1 files changed, 100 insertions, 0 deletions
diff --git a/src/python/grpcio_test/grpc_test/_adapter/_lonely_rear_link_test.py b/src/python/grpcio_test/grpc_test/_adapter/_lonely_rear_link_test.py
new file mode 100644
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+++ b/src/python/grpcio_test/grpc_test/_adapter/_lonely_rear_link_test.py
@@ -0,0 +1,100 @@
+# Copyright 2015, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+"""A test of invocation-side code unconnected to an RPC server."""
+
+import unittest
+
+from grpc._adapter import rear
+from grpc.framework.base import interfaces
+from grpc.framework.foundation import logging_pool
+from grpc_test._adapter import _test_links
+
+_IDENTITY = lambda x: x
+_TIMEOUT = 2
+
+
+class LonelyRearLinkTest(unittest.TestCase):
+
+  def setUp(self):
+    self.pool = logging_pool.pool(8)
+
+  def tearDown(self):
+    self.pool.shutdown(wait=True)
+
+  def testUpAndDown(self):
+    rear_link = rear.RearLink(
+        'nonexistent', 54321, self.pool, {}, {}, False, None, None, None)
+
+    rear_link.start()
+    rear_link.stop()
+
+  def _perform_lonely_client_test_with_ticket_kind(
+      self, front_to_back_ticket_kind):
+    test_operation_id = object()
+    test_method = 'test method'
+    fore_link = _test_links.ForeLink(None, None)
+
+    rear_link = rear.RearLink(
+        'nonexistent', 54321, self.pool, {test_method: None},
+        {test_method: None}, False, None, None, None)
+    rear_link.join_fore_link(fore_link)
+    rear_link.start()
+
+    front_to_back_ticket = interfaces.FrontToBackTicket(
+        test_operation_id, 0, front_to_back_ticket_kind, test_method,
+        interfaces.ServicedSubscription.Kind.FULL, None, None, _TIMEOUT)
+    rear_link.accept_front_to_back_ticket(front_to_back_ticket)
+
+    with fore_link.condition:
+      while True:
+        if (fore_link.tickets and
+            fore_link.tickets[-1].kind is not
+                interfaces.BackToFrontTicket.Kind.CONTINUATION):
+          break
+        fore_link.condition.wait()
+
+    rear_link.stop()
+
+    with fore_link.condition:
+      self.assertIsNot(
+          fore_link.tickets[-1].kind,
+          interfaces.BackToFrontTicket.Kind.COMPLETION)
+
+  def testLonelyClientCommencementTicket(self):
+    self._perform_lonely_client_test_with_ticket_kind(
+        interfaces.FrontToBackTicket.Kind.COMMENCEMENT)
+
+  def testLonelyClientEntireTicket(self):
+    self._perform_lonely_client_test_with_ticket_kind(
+        interfaces.FrontToBackTicket.Kind.ENTIRE)
+
+
+if __name__ == '__main__':
+  unittest.main(verbosity=2)