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gmock_ex_test.cc
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30 // Author: wan@google.com (Zhanyong Wan)
31 
32 // Tests Google Mock's functionality that depends on exceptions.
33 
34 #include "gmock/gmock.h"
35 #include "gtest/gtest.h"
36 
37 namespace {
38 
39 using testing::HasSubstr;
40 using testing::internal::GoogleTestFailureException;
41 
42 // A type that cannot be default constructed.
43 class NonDefaultConstructible {
44  public:
45  explicit NonDefaultConstructible(int /* dummy */) {}
46 };
47 
48 class MockFoo {
49  public:
50  // A mock method that returns a user-defined type. Google Mock
51  // doesn't know what the default value for this type is.
52  MOCK_METHOD0(GetNonDefaultConstructible, NonDefaultConstructible());
53 };
54 
55 #if GTEST_HAS_EXCEPTIONS
56 
57 TEST(DefaultValueTest, ThrowsRuntimeErrorWhenNoDefaultValue) {
58  MockFoo mock;
59  try {
60  // No expectation is set on this method, so Google Mock must
61  // return the default value. However, since Google Mock knows
62  // nothing about the return type, it doesn't know what to return,
63  // and has to throw (when exceptions are enabled) or abort
64  // (otherwise).
65  mock.GetNonDefaultConstructible();
66  FAIL() << "GetNonDefaultConstructible()'s return type has no default "
67  << "value, so Google Mock should have thrown.";
68  } catch (const GoogleTestFailureException& /* unused */) {
69  FAIL() << "Google Test does not try to catch an exception of type "
70  << "GoogleTestFailureException, which is used for reporting "
71  << "a failure to other testing frameworks. Google Mock should "
72  << "not throw a GoogleTestFailureException as it will kill the "
73  << "entire test program instead of just the current TEST.";
74  } catch (const std::exception& ex) {
75  EXPECT_THAT(ex.what(), HasSubstr("has no default value"));
76  }
77 }
78 
79 #endif
80 
81 } // unnamed namespace