Initial checkin of gRPC to third_party/

third_party/grpc/src/python/grpcio/tests/unit/framework/interfaces/face/test_cases.py

Index: third_party/grpc/src/python/grpcio/tests/unit/framework/interfaces/face/test_cases.py
diff --git a/third_party/grpc/src/python/grpcio/tests/unit/framework/interfaces/face/test_cases.py b/third_party/grpc/src/python/grpcio/tests/unit/framework/interfaces/face/test_cases.py
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index 0000000000000000000000000000000000000000..462829b66066880ff790986513264b56f14d96f8
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@@ -0,0 +1,69 @@
+# 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.
+
+"""Tools for creating tests of implementations of the Face layer."""
+
+# unittest is referenced from specification in this module.
+import unittest  # pylint: disable=unused-import
+
+# test_interfaces is referenced from specification in this module.
+from tests.unit.framework.interfaces.face import _blocking_invocation_inline_service
+from tests.unit.framework.interfaces.face import _event_invocation_synchronous_event_service
+from tests.unit.framework.interfaces.face import _future_invocation_asynchronous_event_service
+from tests.unit.framework.interfaces.face import _invocation
+from tests.unit.framework.interfaces.face import test_interfaces  # pylint: disable=unused-import
+
+_TEST_CASE_SUPERCLASSES = (
+    _blocking_invocation_inline_service.TestCase,
+    _event_invocation_synchronous_event_service.TestCase,
+    _future_invocation_asynchronous_event_service.TestCase,
+)
+
+
+def test_cases(implementation):
+  """Creates unittest.TestCase classes for a given Face layer implementation.
+
+  Args:
+    implementation: A test_interfaces.Implementation specifying creation and
+      destruction of a given Face layer implementation.
+
+  Returns:
+    A sequence of subclasses of unittest.TestCase defining tests of the
+      specified Face layer implementation.
+  """
+  test_case_classes = []
+  for invoker_constructor in _invocation.invoker_constructors():
+    for super_class in _TEST_CASE_SUPERCLASSES:
+      test_case_classes.append(
+          type(invoker_constructor.name() + super_class.NAME, (super_class,),
+               {'implementation': implementation,
+                'invoker_constructor': invoker_constructor,
+                '__module__': implementation.__module__,
+               }))
+  return test_case_classes