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29
30 // Tests Google Mock's functionality that depends on exceptions.
31
32 #include <exception>
33
34 #include "gmock/gmock.h"
35 #include "gtest/gtest.h"
36
37 #if GTEST_HAS_EXCEPTIONS
38 namespace {
39
40 using testing::HasSubstr;
41
42 using testing::internal::GoogleTestFailureException;
43
44 // A type that cannot be default constructed.
45 class NonDefaultConstructible {
46 public:
NonDefaultConstructible(int)47 explicit NonDefaultConstructible(int /* dummy */) {}
48 };
49
50 class MockFoo {
51 public:
52 // A mock method that returns a user-defined type. Google Mock
53 // doesn't know what the default value for this type is.
54 MOCK_METHOD0(GetNonDefaultConstructible, NonDefaultConstructible());
55 };
56
TEST(DefaultValueTest,ThrowsRuntimeErrorWhenNoDefaultValue)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 } // unnamed namespace
80 #endif
81