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diff --git a/ext/googlemock/test/gmock_ex_test.cc b/ext/googlemock/test/gmock_ex_test.cc
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+++ b/ext/googlemock/test/gmock_ex_test.cc
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+// Copyright 2013, 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.
+//
+// Author: wan@google.com (Zhanyong Wan)
+
+// Tests Google Mock's functionality that depends on exceptions.
+
+#include "gmock/gmock.h"
+#include "gtest/gtest.h"
+
+namespace {
+
+using testing::HasSubstr;
+using testing::internal::GoogleTestFailureException;
+
+// A type that cannot be default constructed.
+class NonDefaultConstructible {
+ public:
+  explicit NonDefaultConstructible(int /* dummy */) {}
+};
+
+class MockFoo {
+ public:
+  // A mock method that returns a user-defined type.  Google Mock
+  // doesn't know what the default value for this type is.
+  MOCK_METHOD0(GetNonDefaultConstructible, NonDefaultConstructible());
+};
+
+#if GTEST_HAS_EXCEPTIONS
+
+TEST(DefaultValueTest, ThrowsRuntimeErrorWhenNoDefaultValue) {
+  MockFoo mock;
+  try {
+    // No expectation is set on this method, so Google Mock must
+    // return the default value.  However, since Google Mock knows
+    // nothing about the return type, it doesn't know what to return,
+    // and has to throw (when exceptions are enabled) or abort
+    // (otherwise).
+    mock.GetNonDefaultConstructible();
+    FAIL() << "GetNonDefaultConstructible()'s return type has no default "
+           << "value, so Google Mock should have thrown.";
+  } catch (const GoogleTestFailureException& /* unused */) {
+    FAIL() << "Google Test does not try to catch an exception of type "
+           << "GoogleTestFailureException, which is used for reporting "
+           << "a failure to other testing frameworks.  Google Mock should "
+           << "not throw a GoogleTestFailureException as it will kill the "
+           << "entire test program instead of just the current TEST.";
+  } catch (const std::exception& ex) {
+    EXPECT_THAT(ex.what(), HasSubstr("has no default value"));
+  }
+}
+
+#endif
+
+}  // unnamed namespace