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     29 //
     30 // Author: wan (at) 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 user-defined class.
     43 class Something {};
     44 
     45 class MockFoo {
     46  public:
     47   // A mock method that returns a user-defined type.  Google Mock
     48   // doesn't know what the default value for this type is.
     49   MOCK_METHOD0(GetSomething, Something());
     50 };
     51 
     52 #if GTEST_HAS_EXCEPTIONS
     53 
     54 TEST(DefaultValueTest, ThrowsRuntimeErrorWhenNoDefaultValue) {
     55   MockFoo mock;
     56   try {
     57     // No expectation is set on this method, so Google Mock must
     58     // return the default value.  However, since Google Mock knows
     59     // nothing about the return type, it doesn't know what to return,
     60     // and has to throw (when exceptions are enabled) or abort
     61     // (otherwise).
     62     mock.GetSomething();
     63     FAIL() << "GetSomething()'s return type has no default value, "
     64            << "so Google Mock should have thrown.";
     65   } catch (const GoogleTestFailureException& /* unused */) {
     66     FAIL() << "Google Test does not try to catch an exception of type "
     67            << "GoogleTestFailureException, which is used for reporting "
     68            << "a failure to other testing frameworks.  Google Mock should "
     69            << "not throw a GoogleTestFailureException as it will kill the "
     70            << "entire test program instead of just the current TEST.";
     71   } catch (const std::exception& ex) {
     72     EXPECT_THAT(ex.what(), HasSubstr("has no default value"));
     73   }
     74 }
     75 
     76 #endif
     77 
     78 }  // unnamed namespace
     79