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1 // Copyright 2013, Google Inc.
2 // All rights reserved.
3 //
4 // Redistribution and use in source and binary forms, with or without
5 // modification, are permitted provided that the following conditions are
6 // met:
7 //
8 //     * Redistributions of source code must retain the above copyright
9 // notice, this list of conditions and the following disclaimer.
10 //     * Redistributions in binary form must reproduce the above
11 // copyright notice, this list of conditions and the following disclaimer
12 // in the documentation and/or other materials provided with the
13 // distribution.
14 //     * Neither the name of Google Inc. nor the names of its
15 // contributors may be used to endorse or promote products derived from
16 // this software without specific prior written permission.
17 //
18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 
30 
31 // Tests Google Mock's functionality that depends on exceptions.
32 
33 #include "gmock/gmock.h"
34 #include "gtest/gtest.h"
35 
36 #if GTEST_HAS_EXCEPTIONS
37 namespace {
38 
39 using testing::HasSubstr;
40 
41 using testing::internal::GoogleTestFailureException;
42 
43 // A type that cannot be default constructed.
44 class NonDefaultConstructible {
45  public:
NonDefaultConstructible(int)46   explicit NonDefaultConstructible(int /* dummy */) {}
47 };
48 
49 class MockFoo {
50  public:
51   // A mock method that returns a user-defined type.  Google Mock
52   // doesn't know what the default value for this type is.
53   MOCK_METHOD0(GetNonDefaultConstructible, NonDefaultConstructible());
54 };
55 
TEST(DefaultValueTest,ThrowsRuntimeErrorWhenNoDefaultValue)56 TEST(DefaultValueTest, ThrowsRuntimeErrorWhenNoDefaultValue) {
57   MockFoo mock;
58   try {
59     // No expectation is set on this method, so Google Mock must
60     // return the default value.  However, since Google Mock knows
61     // nothing about the return type, it doesn't know what to return,
62     // and has to throw (when exceptions are enabled) or abort
63     // (otherwise).
64     mock.GetNonDefaultConstructible();
65     FAIL() << "GetNonDefaultConstructible()'s return type has no default "
66            << "value, so Google Mock should have thrown.";
67   } catch (const GoogleTestFailureException& /* unused */) {
68     FAIL() << "Google Test does not try to catch an exception of type "
69            << "GoogleTestFailureException, which is used for reporting "
70            << "a failure to other testing frameworks.  Google Mock should "
71            << "not throw a GoogleTestFailureException as it will kill the "
72            << "entire test program instead of just the current TEST.";
73   } catch (const std::exception& ex) {
74     EXPECT_THAT(ex.what(), HasSubstr("has no default value"));
75   }
76 }
77 
78 
79 }  // unnamed namespace
80 #endif
81