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@ -272,6 +272,54 @@ class GTEST_API_ KilledBySignal {
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# endif // NDEBUG for EXPECT_DEBUG_DEATH
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#endif // GTEST_HAS_DEATH_TEST
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// This macro is used for implementing macros such as
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// EXPECT_DEATH_IF_SUPPORTED and ASSERT_DEATH_IF_SUPPORTED on systems where
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// death tests are not supported. Those macros must compile on such systems
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// iff EXPECT_DEATH and ASSERT_DEATH compile with the same parameters on
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// systems that support death tests. This allows one to write such a macro
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// on a system that does not support death tests and be sure that it will
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// compile on a death-test supporting system. It is exposed publicly so that
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// systems that have death-tests with stricter requirements than
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// GTEST_HAS_DEATH_TEST can write their own equivalent of
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// EXPECT_DEATH_IF_SUPPORTED and ASSERT_DEATH_IF_SUPPORTED.
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//
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// Parameters:
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// statement - A statement that a macro such as EXPECT_DEATH would test
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// for program termination. This macro has to make sure this
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// statement is compiled but not executed, to ensure that
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// EXPECT_DEATH_IF_SUPPORTED compiles with a certain
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// parameter iff EXPECT_DEATH compiles with it.
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// regex - A regex that a macro such as EXPECT_DEATH would use to test
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// the output of statement. This parameter has to be
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// compiled but not evaluated by this macro, to ensure that
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// this macro only accepts expressions that a macro such as
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// EXPECT_DEATH would accept.
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// terminator - Must be an empty statement for EXPECT_DEATH_IF_SUPPORTED
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// and a return statement for ASSERT_DEATH_IF_SUPPORTED.
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// This ensures that ASSERT_DEATH_IF_SUPPORTED will not
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// compile inside functions where ASSERT_DEATH doesn't
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// compile.
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//
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// The branch that has an always false condition is used to ensure that
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// statement and regex are compiled (and thus syntactically correct) but
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// never executed. The unreachable code macro protects the terminator
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// statement from generating an 'unreachable code' warning in case
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// statement unconditionally returns or throws. The Message constructor at
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// the end allows the syntax of streaming additional messages into the
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// macro, for compilational compatibility with EXPECT_DEATH/ASSERT_DEATH.
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# define GTEST_UNSUPPORTED_DEATH_TEST(statement, regex, terminator) \
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GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
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if (::testing::internal::AlwaysTrue()) { \
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GTEST_LOG_(WARNING) \
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<< "Death tests are not supported on this platform.\n" \
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<< "Statement '" #statement "' cannot be verified."; \
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} else if (::testing::internal::AlwaysFalse()) { \
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::testing::internal::RE::PartialMatch(".*", (regex)); \
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GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement); \
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terminator; \
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} else \
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::testing::Message()
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// EXPECT_DEATH_IF_SUPPORTED(statement, regex) and
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// ASSERT_DEATH_IF_SUPPORTED(statement, regex) expand to real death tests if
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// death tests are supported; otherwise they just issue a warning. This is
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@ -284,9 +332,9 @@ class GTEST_API_ KilledBySignal {
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ASSERT_DEATH(statement, regex)
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#else
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# define EXPECT_DEATH_IF_SUPPORTED(statement, regex) \
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GTEST_UNSUPPORTED_DEATH_TEST_(statement, regex, )
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GTEST_UNSUPPORTED_DEATH_TEST(statement, regex, )
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# define ASSERT_DEATH_IF_SUPPORTED(statement, regex) \
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GTEST_UNSUPPORTED_DEATH_TEST_(statement, regex, return)
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GTEST_UNSUPPORTED_DEATH_TEST(statement, regex, return)
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#endif
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} // namespace testing
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@ -263,53 +263,6 @@ class InternalRunDeathTestFlag {
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// the flag is specified; otherwise returns NULL.
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InternalRunDeathTestFlag* ParseInternalRunDeathTestFlag();
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#else // GTEST_HAS_DEATH_TEST
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// This macro is used for implementing macros such as
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// EXPECT_DEATH_IF_SUPPORTED and ASSERT_DEATH_IF_SUPPORTED on systems where
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// death tests are not supported. Those macros must compile on such systems
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// iff EXPECT_DEATH and ASSERT_DEATH compile with the same parameters on
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// systems that support death tests. This allows one to write such a macro
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// on a system that does not support death tests and be sure that it will
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// compile on a death-test supporting system.
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//
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// Parameters:
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// statement - A statement that a macro such as EXPECT_DEATH would test
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// for program termination. This macro has to make sure this
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// statement is compiled but not executed, to ensure that
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// EXPECT_DEATH_IF_SUPPORTED compiles with a certain
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// parameter iff EXPECT_DEATH compiles with it.
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// regex - A regex that a macro such as EXPECT_DEATH would use to test
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// the output of statement. This parameter has to be
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// compiled but not evaluated by this macro, to ensure that
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// this macro only accepts expressions that a macro such as
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// EXPECT_DEATH would accept.
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// terminator - Must be an empty statement for EXPECT_DEATH_IF_SUPPORTED
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// and a return statement for ASSERT_DEATH_IF_SUPPORTED.
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// This ensures that ASSERT_DEATH_IF_SUPPORTED will not
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// compile inside functions where ASSERT_DEATH doesn't
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// compile.
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//
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// The branch that has an always false condition is used to ensure that
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// statement and regex are compiled (and thus syntactically correct) but
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// never executed. The unreachable code macro protects the terminator
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// statement from generating an 'unreachable code' warning in case
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// statement unconditionally returns or throws. The Message constructor at
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// the end allows the syntax of streaming additional messages into the
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// macro, for compilational compatibility with EXPECT_DEATH/ASSERT_DEATH.
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# define GTEST_UNSUPPORTED_DEATH_TEST_(statement, regex, terminator) \
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GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
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if (::testing::internal::AlwaysTrue()) { \
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GTEST_LOG_(WARNING) \
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<< "Death tests are not supported on this platform.\n" \
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<< "Statement '" #statement "' cannot be verified."; \
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} else if (::testing::internal::AlwaysFalse()) { \
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::testing::internal::RE::PartialMatch(".*", (regex)); \
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GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement); \
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terminator; \
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} else \
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::testing::Message()
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#endif // GTEST_HAS_DEATH_TEST
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} // namespace internal
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