15 files changed, 1563 insertions, 0 deletions
diff --git a/src/python/grpcio_test/grpc_interop/__init__.py b/src/python/grpcio_test/grpc_interop/__init__.py
new file mode 100644
index 0000000000..7086519106
--- /dev/null
+++ b/src/python/grpcio_test/grpc_interop/__init__.py
@@ -0,0 +1,30 @@
+# 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.
+
+
diff --git a/src/python/grpcio_test/grpc_interop/_insecure_interop_test.py b/src/python/grpcio_test/grpc_interop/_insecure_interop_test.py
new file mode 100644
index 0000000000..825988a072
--- /dev/null
+++ b/src/python/grpcio_test/grpc_interop/_insecure_interop_test.py
@@ -0,0 +1,57 @@
+# 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.
+
+"""Insecure client-server interoperability as a unit test."""
+
+import unittest
+
+from grpc.early_adopter import implementations
+
+from grpc_interop import _interop_test_case
+from grpc_interop import methods
+
+
+class InsecureInteropTest(
+    _interop_test_case.InteropTestCase,
+    unittest.TestCase):
+
+  def setUp(self):
+    self.server = implementations.server(
+        methods.SERVICE_NAME, methods.SERVER_METHODS, 0)
+    self.server.start()
+    port = self.server.port()
+    self.stub = implementations.stub(
+        methods.SERVICE_NAME, methods.CLIENT_METHODS, 'localhost', port)
+
+  def tearDown(self):
+    self.server.stop()
+
+
+if __name__ == '__main__':
+  unittest.main(verbosity=2)
diff --git a/src/python/grpcio_test/grpc_interop/_interop_test_case.py b/src/python/grpcio_test/grpc_interop/_interop_test_case.py
new file mode 100644
index 0000000000..ed8f7ef009
--- /dev/null
+++ b/src/python/grpcio_test/grpc_interop/_interop_test_case.py
@@ -0,0 +1,61 @@
+# 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.
+
+"""Common code for unit tests of the interoperability test code."""
+
+from grpc_interop import methods
+
+
+class InteropTestCase(object):
+  """Unit test methods.
+
+  This class must be mixed in with unittest.TestCase and a class that defines
+  setUp and tearDown methods that manage a stub attribute.
+  """
+
+  def testEmptyUnary(self):
+    methods.TestCase.EMPTY_UNARY.test_interoperability(self.stub, None)
+
+  def testLargeUnary(self):
+    methods.TestCase.LARGE_UNARY.test_interoperability(self.stub, None)
+
+  def testServerStreaming(self):
+    methods.TestCase.SERVER_STREAMING.test_interoperability(self.stub, None)
+
+  def testClientStreaming(self):
+    methods.TestCase.CLIENT_STREAMING.test_interoperability(self.stub, None)
+
+  def testPingPong(self):
+    methods.TestCase.PING_PONG.test_interoperability(self.stub, None)
+
+  def testCancelAfterBegin(self):
+    methods.TestCase.CANCEL_AFTER_BEGIN.test_interoperability(self.stub, None)
+
+  def testCancelAfterFirstResponse(self):
+    methods.TestCase.CANCEL_AFTER_FIRST_RESPONSE.test_interoperability(self.stub, None)
diff --git a/src/python/grpcio_test/grpc_interop/_secure_interop_test.py b/src/python/grpcio_test/grpc_interop/_secure_interop_test.py
new file mode 100644
index 0000000000..a2682dee99
--- /dev/null
+++ b/src/python/grpcio_test/grpc_interop/_secure_interop_test.py
@@ -0,0 +1,64 @@
+# 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.
+
+"""Secure client-server interoperability as a unit test."""
+
+import unittest
+
+from grpc.early_adopter import implementations
+
+from grpc_interop import _interop_test_case
+from grpc_interop import methods
+from grpc_interop import resources
+
+_SERVER_HOST_OVERRIDE = 'foo.test.google.fr'
+
+
+class SecureInteropTest(
+    _interop_test_case.InteropTestCase,
+    unittest.TestCase):
+
+  def setUp(self):
+    self.server = implementations.server(
+        methods.SERVICE_NAME, methods.SERVER_METHODS, 0,
+        private_key=resources.private_key(),
+        certificate_chain=resources.certificate_chain())
+    self.server.start()
+    port = self.server.port()
+    self.stub = implementations.stub(
+        methods.SERVICE_NAME, methods.CLIENT_METHODS, 'localhost', port,
+        secure=True, root_certificates=resources.test_root_certificates(),
+        server_host_override=_SERVER_HOST_OVERRIDE)
+
+  def tearDown(self):
+    self.server.stop()
+
+
+if __name__ == '__main__':
+  unittest.main(verbosity=2)
diff --git a/src/python/grpcio_test/grpc_interop/client.py b/src/python/grpcio_test/grpc_interop/client.py
new file mode 100644
index 0000000000..2dd2103cbe
--- /dev/null
+++ b/src/python/grpcio_test/grpc_interop/client.py
@@ -0,0 +1,110 @@
+# 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.
+
+"""The Python implementation of the GRPC interoperability test client."""
+
+import argparse
+from oauth2client import client as oauth2client_client
+
+from grpc.early_adopter import implementations
+
+from grpc_interop import methods
+from grpc_interop import resources
+
+_ONE_DAY_IN_SECONDS = 60 * 60 * 24
+
+
+def _args():
+  parser = argparse.ArgumentParser()
+  parser.add_argument(
+      '--server_host', help='the host to which to connect', type=str)
+  parser.add_argument(
+      '--server_port', help='the port to which to connect', type=int)
+  parser.add_argument(
+      '--test_case', help='the test case to execute', type=str)
+  parser.add_argument(
+      '--use_tls', help='require a secure connection', dest='use_tls',
+      action='store_true')
+  parser.add_argument(
+      '--use_test_ca', help='replace platform root CAs with ca.pem',
+      action='store_true')
+  parser.add_argument(
+      '--server_host_override',
+      help='the server host to which to claim to connect', type=str)
+  parser.add_argument('--oauth_scope', help='scope for OAuth tokens', type=str)
+  parser.add_argument(
+      '--default_service_account',
+      help='email address of the default service account', type=str)
+  return parser.parse_args()
+
+def _oauth_access_token(args):
+  credentials = oauth2client_client.GoogleCredentials.get_application_default()
+  scoped_credentials = credentials.create_scoped([args.oauth_scope])
+  return scoped_credentials.get_access_token().access_token
+
+def _stub(args):
+  if args.oauth_scope:
+    metadata_transformer = lambda x: [('Authorization', 'Bearer %s' % _oauth_access_token(args))]
+  else:
+    metadata_transformer = lambda x: []
+  if args.use_tls:
+    if args.use_test_ca:
+      root_certificates = resources.test_root_certificates()
+    else:
+      root_certificates = resources.prod_root_certificates()
+
+    stub = implementations.stub(
+        methods.SERVICE_NAME, methods.CLIENT_METHODS, args.server_host,
+        args.server_port, metadata_transformer=metadata_transformer,
+        secure=True, root_certificates=root_certificates,
+        server_host_override=args.server_host_override)
+  else:
+    stub = implementations.stub(
+        methods.SERVICE_NAME, methods.CLIENT_METHODS, args.server_host,
+        args.server_port, secure=False)
+  return stub
+
+
+def _test_case_from_arg(test_case_arg):
+  for test_case in methods.TestCase:
+    if test_case_arg == test_case.value:
+      return test_case
+  else:
+    raise ValueError('No test case "%s"!' % test_case_arg)
+
+
+def _test_interoperability():
+  args = _args()
+  stub = _stub(args)
+  test_case = _test_case_from_arg(args.test_case)
+  test_case.test_interoperability(stub, args)
+
+
+if __name__ == '__main__':
+  _test_interoperability()
diff --git a/src/python/grpcio_test/grpc_interop/credentials/README b/src/python/grpcio_test/grpc_interop/credentials/README
new file mode 100644
index 0000000000..cb20dcb49f
--- /dev/null
+++ b/src/python/grpcio_test/grpc_interop/credentials/README
@@ -0,0 +1 @@
+These are test keys *NOT* to be used in production.
diff --git a/src/python/grpcio_test/grpc_interop/credentials/ca.pem b/src/python/grpcio_test/grpc_interop/credentials/ca.pem
new file mode 100755
index 0000000000..6c8511a73c
--- /dev/null
+++ b/src/python/grpcio_test/grpc_interop/credentials/ca.pem
@@ -0,0 +1,15 @@
+-----BEGIN CERTIFICATE-----
+MIICSjCCAbOgAwIBAgIJAJHGGR4dGioHMA0GCSqGSIb3DQEBCwUAMFYxCzAJBgNV
+BAYTAkFVMRMwEQYDVQQIEwpTb21lLVN0YXRlMSEwHwYDVQQKExhJbnRlcm5ldCBX
+aWRnaXRzIFB0eSBMdGQxDzANBgNVBAMTBnRlc3RjYTAeFw0xNDExMTEyMjMxMjla
+Fw0yNDExMDgyMjMxMjlaMFYxCzAJBgNVBAYTAkFVMRMwEQYDVQQIEwpTb21lLVN0
+YXRlMSEwHwYDVQQKExhJbnRlcm5ldCBXaWRnaXRzIFB0eSBMdGQxDzANBgNVBAMT
+BnRlc3RjYTCBnzANBgkqhkiG9w0BAQEFAAOBjQAwgYkCgYEAwEDfBV5MYdlHVHJ7
++L4nxrZy7mBfAVXpOc5vMYztssUI7mL2/iYujiIXM+weZYNTEpLdjyJdu7R5gGUu
+g1jSVK/EPHfc74O7AyZU34PNIP4Sh33N+/A5YexrNgJlPY+E3GdVYi4ldWJjgkAd
+Qah2PH5ACLrIIC6tRka9hcaBlIECAwEAAaMgMB4wDAYDVR0TBAUwAwEB/zAOBgNV
+HQ8BAf8EBAMCAgQwDQYJKoZIhvcNAQELBQADgYEAHzC7jdYlzAVmddi/gdAeKPau
+sPBG/C2HCWqHzpCUHcKuvMzDVkY/MP2o6JIW2DBbY64bO/FceExhjcykgaYtCH/m
+oIU63+CFOTtR7otyQAWHqXa7q4SbCDlG7DyRFxqG0txPtGvy12lgldA2+RgcigQG
+Dfcog5wrJytaQ6UA0wE=
+-----END CERTIFICATE-----
diff --git a/src/python/grpcio_test/grpc_interop/credentials/server1.key b/src/python/grpcio_test/grpc_interop/credentials/server1.key
new file mode 100755
index 0000000000..143a5b8765
--- /dev/null
+++ b/src/python/grpcio_test/grpc_interop/credentials/server1.key
@@ -0,0 +1,16 @@
+-----BEGIN PRIVATE KEY-----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+-----END PRIVATE KEY-----
diff --git a/src/python/grpcio_test/grpc_interop/credentials/server1.pem b/src/python/grpcio_test/grpc_interop/credentials/server1.pem
new file mode 100755
index 0000000000..8e582e571f
--- /dev/null
+++ b/src/python/grpcio_test/grpc_interop/credentials/server1.pem
@@ -0,0 +1,16 @@
+-----BEGIN CERTIFICATE-----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=
+-----END CERTIFICATE-----
diff --git a/src/python/grpcio_test/grpc_interop/empty_pb2.py b/src/python/grpcio_test/grpc_interop/empty_pb2.py
new file mode 100644
index 0000000000..8c1ce2f13e
--- /dev/null
+++ b/src/python/grpcio_test/grpc_interop/empty_pb2.py
@@ -0,0 +1,63 @@
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: test/cpp/interop/empty.proto
+
+import sys
+_b=sys.version_info[0]<3 and (lambda x:x) or (lambda x:x.encode('latin1'))
+from google.protobuf import descriptor as _descriptor
+from google.protobuf import message as _message
+from google.protobuf import reflection as _reflection
+from google.protobuf import symbol_database as _symbol_database
+from google.protobuf import descriptor_pb2
+# @@protoc_insertion_point(imports)
+
+_sym_db = _symbol_database.Default()
+
+
+
+
+DESCRIPTOR = _descriptor.FileDescriptor(
+  name='test/cpp/interop/empty.proto',
+  package='grpc.testing',
+  serialized_pb=_b('\n\x1ctest/cpp/interop/empty.proto\x12\x0cgrpc.testing\"\x07\n\x05\x45mpty')
+)
+_sym_db.RegisterFileDescriptor(DESCRIPTOR)
+
+
+
+
+_EMPTY = _descriptor.Descriptor(
+  name='Empty',
+  full_name='grpc.testing.Empty',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  oneofs=[
+  ],
+  serialized_start=46,
+  serialized_end=53,
+)
+
+DESCRIPTOR.message_types_by_name['Empty'] = _EMPTY
+
+Empty = _reflection.GeneratedProtocolMessageType('Empty', (_message.Message,), dict(
+  DESCRIPTOR = _EMPTY,
+  __module__ = 'test.cpp.interop.empty_pb2'
+  # @@protoc_insertion_point(class_scope:grpc.testing.Empty)
+  ))
+_sym_db.RegisterMessage(Empty)
+
+
+import abc
+from grpc.early_adopter import implementations
+from grpc.framework.alpha import utilities
+# @@protoc_insertion_point(module_scope)
diff --git a/src/python/grpcio_test/grpc_interop/messages_pb2.py b/src/python/grpcio_test/grpc_interop/messages_pb2.py
new file mode 100644
index 0000000000..0bf3d86a31
--- /dev/null
+++ b/src/python/grpcio_test/grpc_interop/messages_pb2.py
@@ -0,0 +1,447 @@
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: test/cpp/interop/messages.proto
+
+import sys
+_b=sys.version_info[0]<3 and (lambda x:x) or (lambda x:x.encode('latin1'))
+from google.protobuf.internal import enum_type_wrapper
+from google.protobuf import descriptor as _descriptor
+from google.protobuf import message as _message
+from google.protobuf import reflection as _reflection
+from google.protobuf import symbol_database as _symbol_database
+from google.protobuf import descriptor_pb2
+# @@protoc_insertion_point(imports)
+
+_sym_db = _symbol_database.Default()
+
+
+
+
+DESCRIPTOR = _descriptor.FileDescriptor(
+  name='test/cpp/interop/messages.proto',
+  package='grpc.testing',
+  serialized_pb=_b('\n\x1ftest/cpp/interop/messages.proto\x12\x0cgrpc.testing\"@\n\x07Payload\x12\'\n\x04type\x18\x01 \x01(\x0e\x32\x19.grpc.testing.PayloadType\x12\x0c\n\x04\x62ody\x18\x02 \x01(\x0c\"\xb1\x01\n\rSimpleRequest\x12\x30\n\rresponse_type\x18\x01 \x01(\x0e\x32\x19.grpc.testing.PayloadType\x12\x15\n\rresponse_size\x18\x02 \x01(\x05\x12&\n\x07payload\x18\x03 \x01(\x0b\x32\x15.grpc.testing.Payload\x12\x15\n\rfill_username\x18\x04 \x01(\x08\x12\x18\n\x10\x66ill_oauth_scope\x18\x05 \x01(\x08\"_\n\x0eSimpleResponse\x12&\n\x07payload\x18\x01 \x01(\x0b\x32\x15.grpc.testing.Payload\x12\x10\n\x08username\x18\x02 \x01(\t\x12\x13\n\x0boauth_scope\x18\x03 \x01(\t\"C\n\x19StreamingInputCallRequest\x12&\n\x07payload\x18\x01 \x01(\x0b\x32\x15.grpc.testing.Payload\"=\n\x1aStreamingInputCallResponse\x12\x1f\n\x17\x61ggregated_payload_size\x18\x01 \x01(\x05\"7\n\x12ResponseParameters\x12\x0c\n\x04size\x18\x01 \x01(\x05\x12\x13\n\x0binterval_us\x18\x02 \x01(\x05\"\xb5\x01\n\x1aStreamingOutputCallRequest\x12\x30\n\rresponse_type\x18\x01 \x01(\x0e\x32\x19.grpc.testing.PayloadType\x12=\n\x13response_parameters\x18\x02 \x03(\x0b\x32 .grpc.testing.ResponseParameters\x12&\n\x07payload\x18\x03 \x01(\x0b\x32\x15.grpc.testing.Payload\"E\n\x1bStreamingOutputCallResponse\x12&\n\x07payload\x18\x01 \x01(\x0b\x32\x15.grpc.testing.Payload*?\n\x0bPayloadType\x12\x10\n\x0c\x43OMPRESSABLE\x10\x00\x12\x12\n\x0eUNCOMPRESSABLE\x10\x01\x12\n\n\x06RANDOM\x10\x02')
+)
+_sym_db.RegisterFileDescriptor(DESCRIPTOR)
+
+_PAYLOADTYPE = _descriptor.EnumDescriptor(
+  name='PayloadType',
+  full_name='grpc.testing.PayloadType',
+  filename=None,
+  file=DESCRIPTOR,
+  values=[
+    _descriptor.EnumValueDescriptor(
+      name='COMPRESSABLE', index=0, number=0,
+      options=None,
+      type=None),
+    _descriptor.EnumValueDescriptor(
+      name='UNCOMPRESSABLE', index=1, number=1,
+      options=None,
+      type=None),
+    _descriptor.EnumValueDescriptor(
+      name='RANDOM', index=2, number=2,
+      options=None,
+      type=None),
+  ],
+  containing_type=None,
+  options=None,
+  serialized_start=836,
+  serialized_end=899,
+)
+_sym_db.RegisterEnumDescriptor(_PAYLOADTYPE)
+
+PayloadType = enum_type_wrapper.EnumTypeWrapper(_PAYLOADTYPE)
+COMPRESSABLE = 0
+UNCOMPRESSABLE = 1
+RANDOM = 2
+
+
+
+_PAYLOAD = _descriptor.Descriptor(
+  name='Payload',
+  full_name='grpc.testing.Payload',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='type', full_name='grpc.testing.Payload.type', index=0,
+      number=1, type=14, cpp_type=8, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='body', full_name='grpc.testing.Payload.body', index=1,
+      number=2, type=12, cpp_type=9, label=1,
+      has_default_value=False, default_value=_b(""),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  oneofs=[
+  ],
+  serialized_start=49,
+  serialized_end=113,
+)
+
+
+_SIMPLEREQUEST = _descriptor.Descriptor(
+  name='SimpleRequest',
+  full_name='grpc.testing.SimpleRequest',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='response_type', full_name='grpc.testing.SimpleRequest.response_type', index=0,
+      number=1, type=14, cpp_type=8, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='response_size', full_name='grpc.testing.SimpleRequest.response_size', index=1,
+      number=2, type=5, cpp_type=1, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='payload', full_name='grpc.testing.SimpleRequest.payload', index=2,
+      number=3, type=11, cpp_type=10, label=1,
+      has_default_value=False, default_value=None,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='fill_username', full_name='grpc.testing.SimpleRequest.fill_username', index=3,
+      number=4, type=8, cpp_type=7, label=1,
+      has_default_value=False, default_value=False,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='fill_oauth_scope', full_name='grpc.testing.SimpleRequest.fill_oauth_scope', index=4,
+      number=5, type=8, cpp_type=7, label=1,
+      has_default_value=False, default_value=False,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  oneofs=[
+  ],
+  serialized_start=116,
+  serialized_end=293,
+)
+
+
+_SIMPLERESPONSE = _descriptor.Descriptor(
+  name='SimpleResponse',
+  full_name='grpc.testing.SimpleResponse',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='payload', full_name='grpc.testing.SimpleResponse.payload', index=0,
+      number=1, type=11, cpp_type=10, label=1,
+      has_default_value=False, default_value=None,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='username', full_name='grpc.testing.SimpleResponse.username', index=1,
+      number=2, type=9, cpp_type=9, label=1,
+      has_default_value=False, default_value=_b("").decode('utf-8'),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='oauth_scope', full_name='grpc.testing.SimpleResponse.oauth_scope', index=2,
+      number=3, type=9, cpp_type=9, label=1,
+      has_default_value=False, default_value=_b("").decode('utf-8'),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  oneofs=[
+  ],
+  serialized_start=295,
+  serialized_end=390,
+)
+
+
+_STREAMINGINPUTCALLREQUEST = _descriptor.Descriptor(
+  name='StreamingInputCallRequest',
+  full_name='grpc.testing.StreamingInputCallRequest',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='payload', full_name='grpc.testing.StreamingInputCallRequest.payload', index=0,
+      number=1, type=11, cpp_type=10, label=1,
+      has_default_value=False, default_value=None,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  oneofs=[
+  ],
+  serialized_start=392,
+  serialized_end=459,
+)
+
+
+_STREAMINGINPUTCALLRESPONSE = _descriptor.Descriptor(
+  name='StreamingInputCallResponse',
+  full_name='grpc.testing.StreamingInputCallResponse',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='aggregated_payload_size', full_name='grpc.testing.StreamingInputCallResponse.aggregated_payload_size', index=0,
+      number=1, type=5, cpp_type=1, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  oneofs=[
+  ],
+  serialized_start=461,
+  serialized_end=522,
+)
+
+
+_RESPONSEPARAMETERS = _descriptor.Descriptor(
+  name='ResponseParameters',
+  full_name='grpc.testing.ResponseParameters',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='size', full_name='grpc.testing.ResponseParameters.size', index=0,
+      number=1, type=5, cpp_type=1, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='interval_us', full_name='grpc.testing.ResponseParameters.interval_us', index=1,
+      number=2, type=5, cpp_type=1, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  oneofs=[
+  ],
+  serialized_start=524,
+  serialized_end=579,
+)
+
+
+_STREAMINGOUTPUTCALLREQUEST = _descriptor.Descriptor(
+  name='StreamingOutputCallRequest',
+  full_name='grpc.testing.StreamingOutputCallRequest',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='response_type', full_name='grpc.testing.StreamingOutputCallRequest.response_type', index=0,
+      number=1, type=14, cpp_type=8, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='response_parameters', full_name='grpc.testing.StreamingOutputCallRequest.response_parameters', index=1,
+      number=2, type=11, cpp_type=10, label=3,
+      has_default_value=False, default_value=[],
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='payload', full_name='grpc.testing.StreamingOutputCallRequest.payload', index=2,
+      number=3, type=11, cpp_type=10, label=1,
+      has_default_value=False, default_value=None,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  oneofs=[
+  ],
+  serialized_start=582,
+  serialized_end=763,
+)
+
+
+_STREAMINGOUTPUTCALLRESPONSE = _descriptor.Descriptor(
+  name='StreamingOutputCallResponse',
+  full_name='grpc.testing.StreamingOutputCallResponse',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='payload', full_name='grpc.testing.StreamingOutputCallResponse.payload', index=0,
+      number=1, type=11, cpp_type=10, label=1,
+      has_default_value=False, default_value=None,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  oneofs=[
+  ],
+  serialized_start=765,
+  serialized_end=834,
+)
+
+_PAYLOAD.fields_by_name['type'].enum_type = _PAYLOADTYPE
+_SIMPLEREQUEST.fields_by_name['response_type'].enum_type = _PAYLOADTYPE
+_SIMPLEREQUEST.fields_by_name['payload'].message_type = _PAYLOAD
+_SIMPLERESPONSE.fields_by_name['payload'].message_type = _PAYLOAD
+_STREAMINGINPUTCALLREQUEST.fields_by_name['payload'].message_type = _PAYLOAD
+_STREAMINGOUTPUTCALLREQUEST.fields_by_name['response_type'].enum_type = _PAYLOADTYPE
+_STREAMINGOUTPUTCALLREQUEST.fields_by_name['response_parameters'].message_type = _RESPONSEPARAMETERS
+_STREAMINGOUTPUTCALLREQUEST.fields_by_name['payload'].message_type = _PAYLOAD
+_STREAMINGOUTPUTCALLRESPONSE.fields_by_name['payload'].message_type = _PAYLOAD
+DESCRIPTOR.message_types_by_name['Payload'] = _PAYLOAD
+DESCRIPTOR.message_types_by_name['SimpleRequest'] = _SIMPLEREQUEST
+DESCRIPTOR.message_types_by_name['SimpleResponse'] = _SIMPLERESPONSE
+DESCRIPTOR.message_types_by_name['StreamingInputCallRequest'] = _STREAMINGINPUTCALLREQUEST
+DESCRIPTOR.message_types_by_name['StreamingInputCallResponse'] = _STREAMINGINPUTCALLRESPONSE
+DESCRIPTOR.message_types_by_name['ResponseParameters'] = _RESPONSEPARAMETERS
+DESCRIPTOR.message_types_by_name['StreamingOutputCallRequest'] = _STREAMINGOUTPUTCALLREQUEST
+DESCRIPTOR.message_types_by_name['StreamingOutputCallResponse'] = _STREAMINGOUTPUTCALLRESPONSE
+DESCRIPTOR.enum_types_by_name['PayloadType'] = _PAYLOADTYPE
+
+Payload = _reflection.GeneratedProtocolMessageType('Payload', (_message.Message,), dict(
+  DESCRIPTOR = _PAYLOAD,
+  __module__ = 'test.cpp.interop.messages_pb2'
+  # @@protoc_insertion_point(class_scope:grpc.testing.Payload)
+  ))
+_sym_db.RegisterMessage(Payload)
+
+SimpleRequest = _reflection.GeneratedProtocolMessageType('SimpleRequest', (_message.Message,), dict(
+  DESCRIPTOR = _SIMPLEREQUEST,
+  __module__ = 'test.cpp.interop.messages_pb2'
+  # @@protoc_insertion_point(class_scope:grpc.testing.SimpleRequest)
+  ))
+_sym_db.RegisterMessage(SimpleRequest)
+
+SimpleResponse = _reflection.GeneratedProtocolMessageType('SimpleResponse', (_message.Message,), dict(
+  DESCRIPTOR = _SIMPLERESPONSE,
+  __module__ = 'test.cpp.interop.messages_pb2'
+  # @@protoc_insertion_point(class_scope:grpc.testing.SimpleResponse)
+  ))
+_sym_db.RegisterMessage(SimpleResponse)
+
+StreamingInputCallRequest = _reflection.GeneratedProtocolMessageType('StreamingInputCallRequest', (_message.Message,), dict(
+  DESCRIPTOR = _STREAMINGINPUTCALLREQUEST,
+  __module__ = 'test.cpp.interop.messages_pb2'
+  # @@protoc_insertion_point(class_scope:grpc.testing.StreamingInputCallRequest)
+  ))
+_sym_db.RegisterMessage(StreamingInputCallRequest)
+
+StreamingInputCallResponse = _reflection.GeneratedProtocolMessageType('StreamingInputCallResponse', (_message.Message,), dict(
+  DESCRIPTOR = _STREAMINGINPUTCALLRESPONSE,
+  __module__ = 'test.cpp.interop.messages_pb2'
+  # @@protoc_insertion_point(class_scope:grpc.testing.StreamingInputCallResponse)
+  ))
+_sym_db.RegisterMessage(StreamingInputCallResponse)
+
+ResponseParameters = _reflection.GeneratedProtocolMessageType('ResponseParameters', (_message.Message,), dict(
+  DESCRIPTOR = _RESPONSEPARAMETERS,
+  __module__ = 'test.cpp.interop.messages_pb2'
+  # @@protoc_insertion_point(class_scope:grpc.testing.ResponseParameters)
+  ))
+_sym_db.RegisterMessage(ResponseParameters)
+
+StreamingOutputCallRequest = _reflection.GeneratedProtocolMessageType('StreamingOutputCallRequest', (_message.Message,), dict(
+  DESCRIPTOR = _STREAMINGOUTPUTCALLREQUEST,
+  __module__ = 'test.cpp.interop.messages_pb2'
+  # @@protoc_insertion_point(class_scope:grpc.testing.StreamingOutputCallRequest)
+  ))
+_sym_db.RegisterMessage(StreamingOutputCallRequest)
+
+StreamingOutputCallResponse = _reflection.GeneratedProtocolMessageType('StreamingOutputCallResponse', (_message.Message,), dict(
+  DESCRIPTOR = _STREAMINGOUTPUTCALLRESPONSE,
+  __module__ = 'test.cpp.interop.messages_pb2'
+  # @@protoc_insertion_point(class_scope:grpc.testing.StreamingOutputCallResponse)
+  ))
+_sym_db.RegisterMessage(StreamingOutputCallResponse)
+
+
+import abc
+from grpc.early_adopter import implementations
+from grpc.framework.alpha import utilities
+# @@protoc_insertion_point(module_scope)
diff --git a/src/python/grpcio_test/grpc_interop/methods.py b/src/python/grpcio_test/grpc_interop/methods.py
new file mode 100644
index 0000000000..f4c94685ee
--- /dev/null
+++ b/src/python/grpcio_test/grpc_interop/methods.py
@@ -0,0 +1,375 @@
+# 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.
+
+"""Implementations of interoperability test methods."""
+
+import enum
+import json
+import os
+import threading
+
+from oauth2client import client as oauth2client_client
+
+from grpc.framework.alpha import utilities
+
+from grpc_interop import empty_pb2
+from grpc_interop import messages_pb2
+
+_TIMEOUT = 7
+
+
+def _empty_call(request, unused_context):
+  return empty_pb2.Empty()
+
+_CLIENT_EMPTY_CALL = utilities.unary_unary_invocation_description(
+    empty_pb2.Empty.SerializeToString, empty_pb2.Empty.FromString)
+_SERVER_EMPTY_CALL = utilities.unary_unary_service_description(
+    _empty_call, empty_pb2.Empty.FromString,
+    empty_pb2.Empty.SerializeToString)
+
+
+def _unary_call(request, unused_context):
+  return messages_pb2.SimpleResponse(
+      payload=messages_pb2.Payload(
+          type=messages_pb2.COMPRESSABLE,
+          body=b'\x00' * request.response_size))
+
+_CLIENT_UNARY_CALL = utilities.unary_unary_invocation_description(
+    messages_pb2.SimpleRequest.SerializeToString,
+    messages_pb2.SimpleResponse.FromString)
+_SERVER_UNARY_CALL = utilities.unary_unary_service_description(
+    _unary_call, messages_pb2.SimpleRequest.FromString,
+    messages_pb2.SimpleResponse.SerializeToString)
+
+
+def _streaming_output_call(request, unused_context):
+  for response_parameters in request.response_parameters:
+    yield messages_pb2.StreamingOutputCallResponse(
+        payload=messages_pb2.Payload(
+            type=request.response_type,
+            body=b'\x00' * response_parameters.size))
+
+_CLIENT_STREAMING_OUTPUT_CALL = utilities.unary_stream_invocation_description(
+    messages_pb2.StreamingOutputCallRequest.SerializeToString,
+    messages_pb2.StreamingOutputCallResponse.FromString)
+_SERVER_STREAMING_OUTPUT_CALL = utilities.unary_stream_service_description(
+    _streaming_output_call,
+    messages_pb2.StreamingOutputCallRequest.FromString,
+    messages_pb2.StreamingOutputCallResponse.SerializeToString)
+
+
+def _streaming_input_call(request_iterator, unused_context):
+  aggregate_size = 0
+  for request in request_iterator:
+    if request.payload and request.payload.body:
+      aggregate_size += len(request.payload.body)
+  return messages_pb2.StreamingInputCallResponse(
+      aggregated_payload_size=aggregate_size)
+
+_CLIENT_STREAMING_INPUT_CALL = utilities.stream_unary_invocation_description(
+    messages_pb2.StreamingInputCallRequest.SerializeToString,
+    messages_pb2.StreamingInputCallResponse.FromString)
+_SERVER_STREAMING_INPUT_CALL = utilities.stream_unary_service_description(
+    _streaming_input_call,
+    messages_pb2.StreamingInputCallRequest.FromString,
+    messages_pb2.StreamingInputCallResponse.SerializeToString)
+
+
+def _full_duplex_call(request_iterator, unused_context):
+  for request in request_iterator:
+    yield messages_pb2.StreamingOutputCallResponse(
+        payload=messages_pb2.Payload(
+            type=request.payload.type,
+            body=b'\x00' * request.response_parameters[0].size))
+
+_CLIENT_FULL_DUPLEX_CALL = utilities.stream_stream_invocation_description(
+    messages_pb2.StreamingOutputCallRequest.SerializeToString,
+    messages_pb2.StreamingOutputCallResponse.FromString)
+_SERVER_FULL_DUPLEX_CALL = utilities.stream_stream_service_description(
+    _full_duplex_call,
+    messages_pb2.StreamingOutputCallRequest.FromString,
+    messages_pb2.StreamingOutputCallResponse.SerializeToString)
+
+# NOTE(nathaniel): Apparently this is the same as the full-duplex call?
+_CLIENT_HALF_DUPLEX_CALL = utilities.stream_stream_invocation_description(
+    messages_pb2.StreamingOutputCallRequest.SerializeToString,
+    messages_pb2.StreamingOutputCallResponse.FromString)
+_SERVER_HALF_DUPLEX_CALL = utilities.stream_stream_service_description(
+    _full_duplex_call,
+    messages_pb2.StreamingOutputCallRequest.FromString,
+    messages_pb2.StreamingOutputCallResponse.SerializeToString)
+
+
+SERVICE_NAME = 'grpc.testing.TestService'
+
+_EMPTY_CALL_METHOD_NAME = 'EmptyCall'
+_UNARY_CALL_METHOD_NAME = 'UnaryCall'
+_STREAMING_OUTPUT_CALL_METHOD_NAME = 'StreamingOutputCall'
+_STREAMING_INPUT_CALL_METHOD_NAME = 'StreamingInputCall'
+_FULL_DUPLEX_CALL_METHOD_NAME = 'FullDuplexCall'
+_HALF_DUPLEX_CALL_METHOD_NAME = 'HalfDuplexCall'
+
+CLIENT_METHODS = {
+    _EMPTY_CALL_METHOD_NAME: _CLIENT_EMPTY_CALL,
+    _UNARY_CALL_METHOD_NAME: _CLIENT_UNARY_CALL,
+    _STREAMING_OUTPUT_CALL_METHOD_NAME: _CLIENT_STREAMING_OUTPUT_CALL,
+    _STREAMING_INPUT_CALL_METHOD_NAME: _CLIENT_STREAMING_INPUT_CALL,
+    _FULL_DUPLEX_CALL_METHOD_NAME: _CLIENT_FULL_DUPLEX_CALL,
+    _HALF_DUPLEX_CALL_METHOD_NAME: _CLIENT_HALF_DUPLEX_CALL,
+}
+
+SERVER_METHODS = {
+    _EMPTY_CALL_METHOD_NAME: _SERVER_EMPTY_CALL,
+    _UNARY_CALL_METHOD_NAME: _SERVER_UNARY_CALL,
+    _STREAMING_OUTPUT_CALL_METHOD_NAME: _SERVER_STREAMING_OUTPUT_CALL,
+    _STREAMING_INPUT_CALL_METHOD_NAME: _SERVER_STREAMING_INPUT_CALL,
+    _FULL_DUPLEX_CALL_METHOD_NAME: _SERVER_FULL_DUPLEX_CALL,
+    _HALF_DUPLEX_CALL_METHOD_NAME: _SERVER_HALF_DUPLEX_CALL,
+}
+
+
+def _large_unary_common_behavior(stub, fill_username, fill_oauth_scope):
+  with stub:
+    request = messages_pb2.SimpleRequest(
+        response_type=messages_pb2.COMPRESSABLE, response_size=314159,
+        payload=messages_pb2.Payload(body=b'\x00' * 271828),
+        fill_username=fill_username, fill_oauth_scope=fill_oauth_scope)
+    response_future = stub.UnaryCall.async(request, _TIMEOUT)
+    response = response_future.result()
+    if response.payload.type is not messages_pb2.COMPRESSABLE:
+      raise ValueError(
+          'response payload type is "%s"!' % type(response.payload.type))
+    if len(response.payload.body) != 314159:
+      raise ValueError(
+          'response body of incorrect size %d!' % len(response.payload.body))
+    return response
+
+
+def _empty_unary(stub):
+  with stub:
+    response = stub.EmptyCall(empty_pb2.Empty(), _TIMEOUT)
+    if not isinstance(response, empty_pb2.Empty):
+      raise TypeError(
+          'response is of type "%s", not empty_pb2.Empty!', type(response))
+
+
+def _large_unary(stub):
+  _large_unary_common_behavior(stub, False, False)
+
+
+def _client_streaming(stub):
+  with stub:
+    payload_body_sizes = (27182, 8, 1828, 45904)
+    payloads = (
+        messages_pb2.Payload(body=b'\x00' * size)
+        for size in payload_body_sizes)
+    requests = (
+        messages_pb2.StreamingInputCallRequest(payload=payload)
+        for payload in payloads)
+    response = stub.StreamingInputCall(requests, _TIMEOUT)
+    if response.aggregated_payload_size != 74922:
+      raise ValueError(
+          'incorrect size %d!' % response.aggregated_payload_size)
+
+
+def _server_streaming(stub):
+  sizes = (31415, 9, 2653, 58979)
+
+  with stub:
+    request = messages_pb2.StreamingOutputCallRequest(
+        response_type=messages_pb2.COMPRESSABLE,
+        response_parameters=(
+            messages_pb2.ResponseParameters(size=sizes[0]),
+            messages_pb2.ResponseParameters(size=sizes[1]),
+            messages_pb2.ResponseParameters(size=sizes[2]),
+            messages_pb2.ResponseParameters(size=sizes[3]),
+        ))
+    response_iterator = stub.StreamingOutputCall(request, _TIMEOUT)
+    for index, response in enumerate(response_iterator):
+      if response.payload.type != messages_pb2.COMPRESSABLE:
+        raise ValueError(
+            'response body of invalid type %s!' % response.payload.type)
+      if len(response.payload.body) != sizes[index]:
+        raise ValueError(
+            'response body of invalid size %d!' % len(response.payload.body))
+
+def _cancel_after_begin(stub):
+  with stub:
+    sizes = (27182, 8, 1828, 45904)
+    payloads = [messages_pb2.Payload(body=b'\x00' * size) for size in sizes]
+    requests = [messages_pb2.StreamingInputCallRequest(payload=payload)
+                for payload in payloads]
+    responses = stub.StreamingInputCall.async(requests, _TIMEOUT)
+    responses.cancel()
+    if not responses.cancelled():
+      raise ValueError('expected call to be cancelled')
+
+
+class _Pipe(object):
+
+  def __init__(self):
+    self._condition = threading.Condition()
+    self._values = []
+    self._open = True
+
+  def __iter__(self):
+    return self
+
+  def next(self):
+    with self._condition:
+      while not self._values and self._open:
+        self._condition.wait()
+      if self._values:
+        return self._values.pop(0)
+      else:
+        raise StopIteration()
+
+  def add(self, value):
+    with self._condition:
+      self._values.append(value)
+      self._condition.notify()
+
+  def close(self):
+    with self._condition:
+      self._open = False
+      self._condition.notify()
+
+  def __enter__(self):
+    return self
+
+  def __exit__(self, type, value, traceback):
+    self.close()
+
+
+def _ping_pong(stub):
+  request_response_sizes = (31415, 9, 2653, 58979)
+  request_payload_sizes = (27182, 8, 1828, 45904)
+
+  with stub, _Pipe() as pipe:
+    response_iterator = stub.FullDuplexCall(pipe, _TIMEOUT)
+    print 'Starting ping-pong with response iterator %s' % response_iterator
+    for response_size, payload_size in zip(
+        request_response_sizes, request_payload_sizes):
+      request = messages_pb2.StreamingOutputCallRequest(
+          response_type=messages_pb2.COMPRESSABLE,
+          response_parameters=(messages_pb2.ResponseParameters(
+              size=response_size),),
+          payload=messages_pb2.Payload(body=b'\x00' * payload_size))
+      pipe.add(request)
+      response = next(response_iterator)
+      if response.payload.type != messages_pb2.COMPRESSABLE:
+        raise ValueError(
+            'response body of invalid type %s!' % response.payload.type)
+      if len(response.payload.body) != response_size:
+        raise ValueError(
+            'response body of invalid size %d!' % len(response.payload.body))
+
+
+def _cancel_after_first_response(stub):
+  request_response_sizes = (31415, 9, 2653, 58979)
+  request_payload_sizes = (27182, 8, 1828, 45904)
+  with stub, _Pipe() as pipe:
+    response_iterator = stub.FullDuplexCall(pipe, _TIMEOUT)
+
+    response_size = request_response_sizes[0]
+    payload_size = request_payload_sizes[0]
+    request = messages_pb2.StreamingOutputCallRequest(
+        response_type=messages_pb2.COMPRESSABLE,
+        response_parameters=(messages_pb2.ResponseParameters(
+            size=response_size),),
+        payload=messages_pb2.Payload(body=b'\x00' * payload_size))
+    pipe.add(request)
+    response = next(response_iterator)
+    # We test the contents of `response` in the Ping Pong test - don't check
+    # them here.
+    response_iterator.cancel()
+
+    try:
+      next(response_iterator)
+    except Exception:
+      pass
+    else:
+      raise ValueError('expected call to be cancelled')
+
+
+def _compute_engine_creds(stub, args):
+  response = _large_unary_common_behavior(stub, True, True)
+  if args.default_service_account != response.username:
+    raise ValueError(
+        'expected username %s, got %s' % (args.default_service_account,
+                                          response.username))
+
+
+def _service_account_creds(stub, args):
+  json_key_filename = os.environ[
+      oauth2client_client.GOOGLE_APPLICATION_CREDENTIALS]
+  wanted_email = json.load(open(json_key_filename, 'rb'))['client_email']
+  response = _large_unary_common_behavior(stub, True, True)
+  if wanted_email != response.username:
+    raise ValueError(
+        'expected username %s, got %s' % (wanted_email, response.username))
+  if args.oauth_scope.find(response.oauth_scope) == -1:
+    raise ValueError(
+        'expected to find oauth scope "%s" in received "%s"' %
+            (response.oauth_scope, args.oauth_scope))
+
+
+@enum.unique
+class TestCase(enum.Enum):
+  EMPTY_UNARY = 'empty_unary'
+  LARGE_UNARY = 'large_unary'
+  SERVER_STREAMING = 'server_streaming'
+  CLIENT_STREAMING = 'client_streaming'
+  PING_PONG = 'ping_pong'
+  CANCEL_AFTER_BEGIN = 'cancel_after_begin'
+  CANCEL_AFTER_FIRST_RESPONSE = 'cancel_after_first_response'
+  COMPUTE_ENGINE_CREDS = 'compute_engine_creds'
+  SERVICE_ACCOUNT_CREDS = 'service_account_creds'
+
+  def test_interoperability(self, stub, args):
+    if self is TestCase.EMPTY_UNARY:
+      _empty_unary(stub)
+    elif self is TestCase.LARGE_UNARY:
+      _large_unary(stub)
+    elif self is TestCase.SERVER_STREAMING:
+      _server_streaming(stub)
+    elif self is TestCase.CLIENT_STREAMING:
+      _client_streaming(stub)
+    elif self is TestCase.PING_PONG:
+      _ping_pong(stub)
+    elif self is TestCase.CANCEL_AFTER_BEGIN:
+      _cancel_after_begin(stub)
+    elif self is TestCase.CANCEL_AFTER_FIRST_RESPONSE:
+      _cancel_after_first_response(stub)
+    elif self is TestCase.COMPUTE_ENGINE_CREDS:
+      _compute_engine_creds(stub, args)
+    elif self is TestCase.SERVICE_ACCOUNT_CREDS:
+      _service_account_creds(stub, args)
+    else:
+      raise NotImplementedError('Test case "%s" not implemented!' % self.name)
diff --git a/src/python/grpcio_test/grpc_interop/resources.py b/src/python/grpcio_test/grpc_interop/resources.py
new file mode 100644
index 0000000000..2c3045313d
--- /dev/null
+++ b/src/python/grpcio_test/grpc_interop/resources.py
@@ -0,0 +1,56 @@
+# 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.
+
+"""Constants and functions for data used in interoperability testing."""
+
+import os
+
+import pkg_resources
+
+_ROOT_CERTIFICATES_RESOURCE_PATH = 'credentials/ca.pem'
+_PRIVATE_KEY_RESOURCE_PATH = 'credentials/server1.key'
+_CERTIFICATE_CHAIN_RESOURCE_PATH = 'credentials/server1.pem'
+
+
+def test_root_certificates():
+  return pkg_resources.resource_string(
+      __name__, _ROOT_CERTIFICATES_RESOURCE_PATH)
+
+
+def prod_root_certificates():
+  return open(os.environ['SSL_CERT_FILE'], mode='rb').read()
+
+
+def private_key():
+  return pkg_resources.resource_string(__name__, _PRIVATE_KEY_RESOURCE_PATH)
+
+
+def certificate_chain():
+  return pkg_resources.resource_string(
+      __name__, _CERTIFICATE_CHAIN_RESOURCE_PATH)
diff --git a/src/python/grpcio_test/grpc_interop/server.py b/src/python/grpcio_test/grpc_interop/server.py
new file mode 100644
index 0000000000..60f630a6be
--- /dev/null
+++ b/src/python/grpcio_test/grpc_interop/server.py
@@ -0,0 +1,74 @@
+# 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.
+
+"""The Python implementation of the GRPC interoperability test server."""
+
+import argparse
+import logging
+import time
+
+from grpc.early_adopter import implementations
+
+from grpc_interop import methods
+from grpc_interop import resources
+
+_ONE_DAY_IN_SECONDS = 60 * 60 * 24
+
+
+def serve():
+  parser = argparse.ArgumentParser()
+  parser.add_argument(
+      '--port', help='the port on which to serve', type=int)
+  parser.add_argument(
+      '--use_tls', help='require a secure connection', dest='use_tls',
+      action='store_true')
+  args = parser.parse_args()
+
+  if args.use_tls:
+    private_key = resources.private_key()
+    certificate_chain = resources.certificate_chain()
+    server = implementations.server(
+        methods.SERVICE_NAME, methods.SERVER_METHODS, args.port,
+        private_key=private_key, certificate_chain=certificate_chain)
+  else:
+    server = implementations.server(
+        methods.SERVICE_NAME, methods.SERVER_METHODS, args.port)
+
+  server.start()
+  logging.info('Server serving.')
+  try:
+    while True:
+      time.sleep(_ONE_DAY_IN_SECONDS)
+  except BaseException as e:
+    logging.info('Caught exception "%s"; stopping server...', e)
+    server.stop()
+    logging.info('Server stopped; exiting.')
+
+if __name__ == '__main__':
+  serve()
diff --git a/src/python/grpcio_test/grpc_interop/test_pb2.py b/src/python/grpcio_test/grpc_interop/test_pb2.py
new file mode 100644
index 0000000000..71325d5a9f
--- /dev/null
+++ b/src/python/grpcio_test/grpc_interop/test_pb2.py
@@ -0,0 +1,178 @@
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: test/cpp/interop/test.proto
+
+import sys
+_b=sys.version_info[0]<3 and (lambda x:x) or (lambda x:x.encode('latin1'))
+from google.protobuf import descriptor as _descriptor
+from google.protobuf import message as _message
+from google.protobuf import reflection as _reflection
+from google.protobuf import symbol_database as _symbol_database
+from google.protobuf import descriptor_pb2
+# @@protoc_insertion_point(imports)
+
+_sym_db = _symbol_database.Default()
+
+
+from test.cpp.interop import empty_pb2 as test_dot_cpp_dot_interop_dot_empty__pb2
+from test.cpp.interop import messages_pb2 as test_dot_cpp_dot_interop_dot_messages__pb2
+
+
+DESCRIPTOR = _descriptor.FileDescriptor(
+  name='test/cpp/interop/test.proto',
+  package='grpc.testing',
+  serialized_pb=_b('\n\x1btest/cpp/interop/test.proto\x12\x0cgrpc.testing\x1a\x1ctest/cpp/interop/empty.proto\x1a\x1ftest/cpp/interop/messages.proto2\xbb\x04\n\x0bTestService\x12\x35\n\tEmptyCall\x12\x13.grpc.testing.Empty\x1a\x13.grpc.testing.Empty\x12\x46\n\tUnaryCall\x12\x1b.grpc.testing.SimpleRequest\x1a\x1c.grpc.testing.SimpleResponse\x12l\n\x13StreamingOutputCall\x12(.grpc.testing.StreamingOutputCallRequest\x1a).grpc.testing.StreamingOutputCallResponse0\x01\x12i\n\x12StreamingInputCall\x12\'.grpc.testing.StreamingInputCallRequest\x1a(.grpc.testing.StreamingInputCallResponse(\x01\x12i\n\x0e\x46ullDuplexCall\x12(.grpc.testing.StreamingOutputCallRequest\x1a).grpc.testing.StreamingOutputCallResponse(\x01\x30\x01\x12i\n\x0eHalfDuplexCall\x12(.grpc.testing.StreamingOutputCallRequest\x1a).grpc.testing.StreamingOutputCallResponse(\x01\x30\x01')
+  ,
+  dependencies=[test_dot_cpp_dot_interop_dot_empty__pb2.DESCRIPTOR,test_dot_cpp_dot_interop_dot_messages__pb2.DESCRIPTOR,])
+_sym_db.RegisterFileDescriptor(DESCRIPTOR)
+
+
+
+
+
+import abc
+from grpc.early_adopter import implementations
+from grpc.framework.alpha import utilities
+class EarlyAdopterTestServiceServicer(object):
+  """<fill me in later!>"""
+  __metaclass__ = abc.ABCMeta
+  @abc.abstractmethod
+  def EmptyCall(self, request, context):
+    raise NotImplementedError()
+  @abc.abstractmethod
+  def UnaryCall(self, request, context):
+    raise NotImplementedError()
+  @abc.abstractmethod
+  def StreamingOutputCall(self, request, context):
+    raise NotImplementedError()
+  @abc.abstractmethod
+  def StreamingInputCall(self, request_iterator, context):
+    raise NotImplementedError()
+  @abc.abstractmethod
+  def FullDuplexCall(self, request_iterator, context):
+    raise NotImplementedError()
+  @abc.abstractmethod
+  def HalfDuplexCall(self, request_iterator, context):
+    raise NotImplementedError()
+class EarlyAdopterTestServiceServer(object):
+  """<fill me in later!>"""
+  __metaclass__ = abc.ABCMeta
+  @abc.abstractmethod
+  def start(self):
+    raise NotImplementedError()
+  @abc.abstractmethod
+  def stop(self):
+    raise NotImplementedError()
+class EarlyAdopterTestServiceStub(object):
+  """<fill me in later!>"""
+  __metaclass__ = abc.ABCMeta
+  @abc.abstractmethod
+  def EmptyCall(self, request):
+    raise NotImplementedError()
+  EmptyCall.async = None
+  @abc.abstractmethod
+  def UnaryCall(self, request):
+    raise NotImplementedError()
+  UnaryCall.async = None
+  @abc.abstractmethod
+  def StreamingOutputCall(self, request):
+    raise NotImplementedError()
+  StreamingOutputCall.async = None
+  @abc.abstractmethod
+  def StreamingInputCall(self, request_iterator):
+    raise NotImplementedError()
+  StreamingInputCall.async = None
+  @abc.abstractmethod
+  def FullDuplexCall(self, request_iterator):
+    raise NotImplementedError()
+  FullDuplexCall.async = None
+  @abc.abstractmethod
+  def HalfDuplexCall(self, request_iterator):
+    raise NotImplementedError()
+  HalfDuplexCall.async = None
+def early_adopter_create_TestService_server(servicer, port, private_key=None, certificate_chain=None):
+  import test.cpp.interop.empty_pb2
+  import test.cpp.interop.empty_pb2
+  import test.cpp.interop.messages_pb2
+  import test.cpp.interop.messages_pb2
+  import test.cpp.interop.messages_pb2
+  import test.cpp.interop.messages_pb2
+  import test.cpp.interop.messages_pb2
+  import test.cpp.interop.messages_pb2
+  import test.cpp.interop.messages_pb2
+  import test.cpp.interop.messages_pb2
+  import test.cpp.interop.messages_pb2
+  import test.cpp.interop.messages_pb2
+  method_service_descriptions = {
+    "EmptyCall": utilities.unary_unary_service_description(
+      servicer.EmptyCall,
+      test.cpp.interop.empty_pb2.Empty.FromString,
+      test.cpp.interop.empty_pb2.Empty.SerializeToString,
+    ),
+    "FullDuplexCall": utilities.stream_stream_service_description(
+      servicer.FullDuplexCall,
+      test.cpp.interop.messages_pb2.StreamingOutputCallRequest.FromString,
+      test.cpp.interop.messages_pb2.StreamingOutputCallResponse.SerializeToString,
+    ),
+    "HalfDuplexCall": utilities.stream_stream_service_description(
+      servicer.HalfDuplexCall,
+      test.cpp.interop.messages_pb2.StreamingOutputCallRequest.FromString,
+      test.cpp.interop.messages_pb2.StreamingOutputCallResponse.SerializeToString,
+    ),
+    "StreamingInputCall": utilities.stream_unary_service_description(
+      servicer.StreamingInputCall,
+      test.cpp.interop.messages_pb2.StreamingInputCallRequest.FromString,
+      test.cpp.interop.messages_pb2.StreamingInputCallResponse.SerializeToString,
+    ),
+    "StreamingOutputCall": utilities.unary_stream_service_description(
+      servicer.StreamingOutputCall,
+      test.cpp.interop.messages_pb2.StreamingOutputCallRequest.FromString,
+      test.cpp.interop.messages_pb2.StreamingOutputCallResponse.SerializeToString,
+    ),
+    "UnaryCall": utilities.unary_unary_service_description(
+      servicer.UnaryCall,
+      test.cpp.interop.messages_pb2.SimpleRequest.FromString,
+      test.cpp.interop.messages_pb2.SimpleResponse.SerializeToString,
+    ),
+  }
+  return implementations.server("grpc.testing.TestService", method_service_descriptions, port, private_key=private_key, certificate_chain=certificate_chain)
+def early_adopter_create_TestService_stub(host, port, metadata_transformer=None, secure=False, root_certificates=None, private_key=None, certificate_chain=None, server_host_override=None):
+  import test.cpp.interop.empty_pb2
+  import test.cpp.interop.empty_pb2
+  import test.cpp.interop.messages_pb2
+  import test.cpp.interop.messages_pb2
+  import test.cpp.interop.messages_pb2
+  import test.cpp.interop.messages_pb2
+  import test.cpp.interop.messages_pb2
+  import test.cpp.interop.messages_pb2
+  import test.cpp.interop.messages_pb2
+  import test.cpp.interop.messages_pb2
+  import test.cpp.interop.messages_pb2
+  import test.cpp.interop.messages_pb2
+  method_invocation_descriptions = {
+    "EmptyCall": utilities.unary_unary_invocation_description(
+      test.cpp.interop.empty_pb2.Empty.SerializeToString,
+      test.cpp.interop.empty_pb2.Empty.FromString,
+    ),
+    "FullDuplexCall": utilities.stream_stream_invocation_description(
+      test.cpp.interop.messages_pb2.StreamingOutputCallRequest.SerializeToString,
+      test.cpp.interop.messages_pb2.StreamingOutputCallResponse.FromString,
+    ),
+    "HalfDuplexCall": utilities.stream_stream_invocation_description(
+      test.cpp.interop.messages_pb2.StreamingOutputCallRequest.SerializeToString,
+      test.cpp.interop.messages_pb2.StreamingOutputCallResponse.FromString,
+    ),
+    "StreamingInputCall": utilities.stream_unary_invocation_description(
+      test.cpp.interop.messages_pb2.StreamingInputCallRequest.SerializeToString,
+      test.cpp.interop.messages_pb2.StreamingInputCallResponse.FromString,
+    ),
+    "StreamingOutputCall": utilities.unary_stream_invocation_description(
+      test.cpp.interop.messages_pb2.StreamingOutputCallRequest.SerializeToString,
+      test.cpp.interop.messages_pb2.StreamingOutputCallResponse.FromString,
+    ),
+    "UnaryCall": utilities.unary_unary_invocation_description(
+      test.cpp.interop.messages_pb2.SimpleRequest.SerializeToString,
+      test.cpp.interop.messages_pb2.SimpleResponse.FromString,
+    ),
+  }
+  return implementations.stub("grpc.testing.TestService", method_invocation_descriptions, host, port, metadata_transformer=metadata_transformer, secure=secure, root_certificates=root_certificates, private_key=private_key, certificate_chain=certificate_chain, server_host_override=server_host_override)
+# @@protoc_insertion_point(module_scope)