diff options
Diffstat (limited to 'gtest-1.6.0/include/gtest/internal/gtest-death-test-internal.h')
-rw-r--r-- | gtest-1.6.0/include/gtest/internal/gtest-death-test-internal.h | 616 |
1 files changed, 308 insertions, 308 deletions
diff --git a/gtest-1.6.0/include/gtest/internal/gtest-death-test-internal.h b/gtest-1.6.0/include/gtest/internal/gtest-death-test-internal.h index 4ed66f7..1d9f83b 100644 --- a/gtest-1.6.0/include/gtest/internal/gtest-death-test-internal.h +++ b/gtest-1.6.0/include/gtest/internal/gtest-death-test-internal.h @@ -1,308 +1,308 @@ -// Copyright 2005, Google Inc.
-// All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-//
-// Authors: wan@google.com (Zhanyong Wan), eefacm@gmail.com (Sean Mcafee)
-//
-// The Google C++ Testing Framework (Google Test)
-//
-// This header file defines internal utilities needed for implementing
-// death tests. They are subject to change without notice.
-
-#ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_DEATH_TEST_INTERNAL_H_
-#define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_DEATH_TEST_INTERNAL_H_
-
-#include "gtest/internal/gtest-internal.h"
-
-#include <stdio.h>
-
-namespace testing {
-namespace internal {
-
-GTEST_DECLARE_string_(internal_run_death_test);
-
-// Names of the flags (needed for parsing Google Test flags).
-const char kDeathTestStyleFlag[] = "death_test_style";
-const char kDeathTestUseFork[] = "death_test_use_fork";
-const char kInternalRunDeathTestFlag[] = "internal_run_death_test";
-
-#if GTEST_HAS_DEATH_TEST
-
-// DeathTest is a class that hides much of the complexity of the
-// GTEST_DEATH_TEST_ macro. It is abstract; its static Create method
-// returns a concrete class that depends on the prevailing death test
-// style, as defined by the --gtest_death_test_style and/or
-// --gtest_internal_run_death_test flags.
-
-// In describing the results of death tests, these terms are used with
-// the corresponding definitions:
-//
-// exit status: The integer exit information in the format specified
-// by wait(2)
-// exit code: The integer code passed to exit(3), _exit(2), or
-// returned from main()
-class GTEST_API_ DeathTest {
- public:
- // Create returns false if there was an error determining the
- // appropriate action to take for the current death test; for example,
- // if the gtest_death_test_style flag is set to an invalid value.
- // The LastMessage method will return a more detailed message in that
- // case. Otherwise, the DeathTest pointer pointed to by the "test"
- // argument is set. If the death test should be skipped, the pointer
- // is set to NULL; otherwise, it is set to the address of a new concrete
- // DeathTest object that controls the execution of the current test.
- static bool Create(const char* statement, const RE* regex,
- const char* file, int line, DeathTest** test);
- DeathTest();
- virtual ~DeathTest() { }
-
- // A helper class that aborts a death test when it's deleted.
- class ReturnSentinel {
- public:
- explicit ReturnSentinel(DeathTest* test) : test_(test) { }
- ~ReturnSentinel() { test_->Abort(TEST_ENCOUNTERED_RETURN_STATEMENT); }
- private:
- DeathTest* const test_;
- GTEST_DISALLOW_COPY_AND_ASSIGN_(ReturnSentinel);
- } GTEST_ATTRIBUTE_UNUSED_;
-
- // An enumeration of possible roles that may be taken when a death
- // test is encountered. EXECUTE means that the death test logic should
- // be executed immediately. OVERSEE means that the program should prepare
- // the appropriate environment for a child process to execute the death
- // test, then wait for it to complete.
- enum TestRole { OVERSEE_TEST, EXECUTE_TEST };
-
- // An enumeration of the three reasons that a test might be aborted.
- enum AbortReason {
- TEST_ENCOUNTERED_RETURN_STATEMENT,
- TEST_THREW_EXCEPTION,
- TEST_DID_NOT_DIE
- };
-
- // Assumes one of the above roles.
- virtual TestRole AssumeRole() = 0;
-
- // Waits for the death test to finish and returns its status.
- virtual int Wait() = 0;
-
- // Returns true if the death test passed; that is, the test process
- // exited during the test, its exit status matches a user-supplied
- // predicate, and its stderr output matches a user-supplied regular
- // expression.
- // The user-supplied predicate may be a macro expression rather
- // than a function pointer or functor, or else Wait and Passed could
- // be combined.
- virtual bool Passed(bool exit_status_ok) = 0;
-
- // Signals that the death test did not die as expected.
- virtual void Abort(AbortReason reason) = 0;
-
- // Returns a human-readable outcome message regarding the outcome of
- // the last death test.
- static const char* LastMessage();
-
- static void set_last_death_test_message(const String& message);
-
- private:
- // A string containing a description of the outcome of the last death test.
- static String last_death_test_message_;
-
- GTEST_DISALLOW_COPY_AND_ASSIGN_(DeathTest);
-};
-
-// Factory interface for death tests. May be mocked out for testing.
-class DeathTestFactory {
- public:
- virtual ~DeathTestFactory() { }
- virtual bool Create(const char* statement, const RE* regex,
- const char* file, int line, DeathTest** test) = 0;
-};
-
-// A concrete DeathTestFactory implementation for normal use.
-class DefaultDeathTestFactory : public DeathTestFactory {
- public:
- virtual bool Create(const char* statement, const RE* regex,
- const char* file, int line, DeathTest** test);
-};
-
-// Returns true if exit_status describes a process that was terminated
-// by a signal, or exited normally with a nonzero exit code.
-GTEST_API_ bool ExitedUnsuccessfully(int exit_status);
-
-// Traps C++ exceptions escaping statement and reports them as test
-// failures. Note that trapping SEH exceptions is not implemented here.
-# if GTEST_HAS_EXCEPTIONS
-# define GTEST_EXECUTE_DEATH_TEST_STATEMENT_(statement, death_test) \
- try { \
- GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement); \
- } catch (const ::std::exception& gtest_exception) { \
- fprintf(\
- stderr, \
- "\n%s: Caught std::exception-derived exception escaping the " \
- "death test statement. Exception message: %s\n", \
- ::testing::internal::FormatFileLocation(__FILE__, __LINE__).c_str(), \
- gtest_exception.what()); \
- fflush(stderr); \
- death_test->Abort(::testing::internal::DeathTest::TEST_THREW_EXCEPTION); \
- } catch (...) { \
- death_test->Abort(::testing::internal::DeathTest::TEST_THREW_EXCEPTION); \
- }
-
-# else
-# define GTEST_EXECUTE_DEATH_TEST_STATEMENT_(statement, death_test) \
- GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement)
-
-# endif
-
-// This macro is for implementing ASSERT_DEATH*, EXPECT_DEATH*,
-// ASSERT_EXIT*, and EXPECT_EXIT*.
-# define GTEST_DEATH_TEST_(statement, predicate, regex, fail) \
- GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
- if (::testing::internal::AlwaysTrue()) { \
- const ::testing::internal::RE& gtest_regex = (regex); \
- ::testing::internal::DeathTest* gtest_dt; \
- if (!::testing::internal::DeathTest::Create(#statement, >est_regex, \
- __FILE__, __LINE__, >est_dt)) { \
- goto GTEST_CONCAT_TOKEN_(gtest_label_, __LINE__); \
- } \
- if (gtest_dt != NULL) { \
- ::testing::internal::scoped_ptr< ::testing::internal::DeathTest> \
- gtest_dt_ptr(gtest_dt); \
- switch (gtest_dt->AssumeRole()) { \
- case ::testing::internal::DeathTest::OVERSEE_TEST: \
- if (!gtest_dt->Passed(predicate(gtest_dt->Wait()))) { \
- goto GTEST_CONCAT_TOKEN_(gtest_label_, __LINE__); \
- } \
- break; \
- case ::testing::internal::DeathTest::EXECUTE_TEST: { \
- ::testing::internal::DeathTest::ReturnSentinel \
- gtest_sentinel(gtest_dt); \
- GTEST_EXECUTE_DEATH_TEST_STATEMENT_(statement, gtest_dt); \
- gtest_dt->Abort(::testing::internal::DeathTest::TEST_DID_NOT_DIE); \
- break; \
- } \
- default: \
- break; \
- } \
- } \
- } else \
- GTEST_CONCAT_TOKEN_(gtest_label_, __LINE__): \
- fail(::testing::internal::DeathTest::LastMessage())
-// The symbol "fail" here expands to something into which a message
-// can be streamed.
-
-// A class representing the parsed contents of the
-// --gtest_internal_run_death_test flag, as it existed when
-// RUN_ALL_TESTS was called.
-class InternalRunDeathTestFlag {
- public:
- InternalRunDeathTestFlag(const String& a_file,
- int a_line,
- int an_index,
- int a_write_fd)
- : file_(a_file), line_(a_line), index_(an_index),
- write_fd_(a_write_fd) {}
-
- ~InternalRunDeathTestFlag() {
- if (write_fd_ >= 0)
- posix::Close(write_fd_);
- }
-
- String file() const { return file_; }
- int line() const { return line_; }
- int index() const { return index_; }
- int write_fd() const { return write_fd_; }
-
- private:
- String file_;
- int line_;
- int index_;
- int write_fd_;
-
- GTEST_DISALLOW_COPY_AND_ASSIGN_(InternalRunDeathTestFlag);
-};
-
-// Returns a newly created InternalRunDeathTestFlag object with fields
-// initialized from the GTEST_FLAG(internal_run_death_test) flag if
-// the flag is specified; otherwise returns NULL.
-InternalRunDeathTestFlag* ParseInternalRunDeathTestFlag();
-
-#else // GTEST_HAS_DEATH_TEST
-
-// This macro is used for implementing macros such as
-// EXPECT_DEATH_IF_SUPPORTED and ASSERT_DEATH_IF_SUPPORTED on systems where
-// death tests are not supported. Those macros must compile on such systems
-// iff EXPECT_DEATH and ASSERT_DEATH compile with the same parameters on
-// systems that support death tests. This allows one to write such a macro
-// on a system that does not support death tests and be sure that it will
-// compile on a death-test supporting system.
-//
-// Parameters:
-// statement - A statement that a macro such as EXPECT_DEATH would test
-// for program termination. This macro has to make sure this
-// statement is compiled but not executed, to ensure that
-// EXPECT_DEATH_IF_SUPPORTED compiles with a certain
-// parameter iff EXPECT_DEATH compiles with it.
-// regex - A regex that a macro such as EXPECT_DEATH would use to test
-// the output of statement. This parameter has to be
-// compiled but not evaluated by this macro, to ensure that
-// this macro only accepts expressions that a macro such as
-// EXPECT_DEATH would accept.
-// terminator - Must be an empty statement for EXPECT_DEATH_IF_SUPPORTED
-// and a return statement for ASSERT_DEATH_IF_SUPPORTED.
-// This ensures that ASSERT_DEATH_IF_SUPPORTED will not
-// compile inside functions where ASSERT_DEATH doesn't
-// compile.
-//
-// The branch that has an always false condition is used to ensure that
-// statement and regex are compiled (and thus syntactically correct) but
-// never executed. The unreachable code macro protects the terminator
-// statement from generating an 'unreachable code' warning in case
-// statement unconditionally returns or throws. The Message constructor at
-// the end allows the syntax of streaming additional messages into the
-// macro, for compilational compatibility with EXPECT_DEATH/ASSERT_DEATH.
-# define GTEST_UNSUPPORTED_DEATH_TEST_(statement, regex, terminator) \
- GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
- if (::testing::internal::AlwaysTrue()) { \
- GTEST_LOG_(WARNING) \
- << "Death tests are not supported on this platform.\n" \
- << "Statement '" #statement "' cannot be verified."; \
- } else if (::testing::internal::AlwaysFalse()) { \
- ::testing::internal::RE::PartialMatch(".*", (regex)); \
- GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement); \
- terminator; \
- } else \
- ::testing::Message()
-
-#endif // GTEST_HAS_DEATH_TEST
-
-} // namespace internal
-} // namespace testing
-
-#endif // GTEST_INCLUDE_GTEST_INTERNAL_GTEST_DEATH_TEST_INTERNAL_H_
+// Copyright 2005, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +// +// Authors: wan@google.com (Zhanyong Wan), eefacm@gmail.com (Sean Mcafee) +// +// The Google C++ Testing Framework (Google Test) +// +// This header file defines internal utilities needed for implementing +// death tests. They are subject to change without notice. + +#ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_DEATH_TEST_INTERNAL_H_ +#define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_DEATH_TEST_INTERNAL_H_ + +#include "gtest/internal/gtest-internal.h" + +#include <stdio.h> + +namespace testing { +namespace internal { + +GTEST_DECLARE_string_(internal_run_death_test); + +// Names of the flags (needed for parsing Google Test flags). +const char kDeathTestStyleFlag[] = "death_test_style"; +const char kDeathTestUseFork[] = "death_test_use_fork"; +const char kInternalRunDeathTestFlag[] = "internal_run_death_test"; + +#if GTEST_HAS_DEATH_TEST + +// DeathTest is a class that hides much of the complexity of the +// GTEST_DEATH_TEST_ macro. It is abstract; its static Create method +// returns a concrete class that depends on the prevailing death test +// style, as defined by the --gtest_death_test_style and/or +// --gtest_internal_run_death_test flags. + +// In describing the results of death tests, these terms are used with +// the corresponding definitions: +// +// exit status: The integer exit information in the format specified +// by wait(2) +// exit code: The integer code passed to exit(3), _exit(2), or +// returned from main() +class GTEST_API_ DeathTest { + public: + // Create returns false if there was an error determining the + // appropriate action to take for the current death test; for example, + // if the gtest_death_test_style flag is set to an invalid value. + // The LastMessage method will return a more detailed message in that + // case. Otherwise, the DeathTest pointer pointed to by the "test" + // argument is set. If the death test should be skipped, the pointer + // is set to NULL; otherwise, it is set to the address of a new concrete + // DeathTest object that controls the execution of the current test. + static bool Create(const char* statement, const RE* regex, + const char* file, int line, DeathTest** test); + DeathTest(); + virtual ~DeathTest() { } + + // A helper class that aborts a death test when it's deleted. + class ReturnSentinel { + public: + explicit ReturnSentinel(DeathTest* test) : test_(test) { } + ~ReturnSentinel() { test_->Abort(TEST_ENCOUNTERED_RETURN_STATEMENT); } + private: + DeathTest* const test_; + GTEST_DISALLOW_COPY_AND_ASSIGN_(ReturnSentinel); + } GTEST_ATTRIBUTE_UNUSED_; + + // An enumeration of possible roles that may be taken when a death + // test is encountered. EXECUTE means that the death test logic should + // be executed immediately. OVERSEE means that the program should prepare + // the appropriate environment for a child process to execute the death + // test, then wait for it to complete. + enum TestRole { OVERSEE_TEST, EXECUTE_TEST }; + + // An enumeration of the three reasons that a test might be aborted. + enum AbortReason { + TEST_ENCOUNTERED_RETURN_STATEMENT, + TEST_THREW_EXCEPTION, + TEST_DID_NOT_DIE + }; + + // Assumes one of the above roles. + virtual TestRole AssumeRole() = 0; + + // Waits for the death test to finish and returns its status. + virtual int Wait() = 0; + + // Returns true if the death test passed; that is, the test process + // exited during the test, its exit status matches a user-supplied + // predicate, and its stderr output matches a user-supplied regular + // expression. + // The user-supplied predicate may be a macro expression rather + // than a function pointer or functor, or else Wait and Passed could + // be combined. + virtual bool Passed(bool exit_status_ok) = 0; + + // Signals that the death test did not die as expected. + virtual void Abort(AbortReason reason) = 0; + + // Returns a human-readable outcome message regarding the outcome of + // the last death test. + static const char* LastMessage(); + + static void set_last_death_test_message(const String& message); + + private: + // A string containing a description of the outcome of the last death test. + static String last_death_test_message_; + + GTEST_DISALLOW_COPY_AND_ASSIGN_(DeathTest); +}; + +// Factory interface for death tests. May be mocked out for testing. +class DeathTestFactory { + public: + virtual ~DeathTestFactory() { } + virtual bool Create(const char* statement, const RE* regex, + const char* file, int line, DeathTest** test) = 0; +}; + +// A concrete DeathTestFactory implementation for normal use. +class DefaultDeathTestFactory : public DeathTestFactory { + public: + virtual bool Create(const char* statement, const RE* regex, + const char* file, int line, DeathTest** test); +}; + +// Returns true if exit_status describes a process that was terminated +// by a signal, or exited normally with a nonzero exit code. +GTEST_API_ bool ExitedUnsuccessfully(int exit_status); + +// Traps C++ exceptions escaping statement and reports them as test +// failures. Note that trapping SEH exceptions is not implemented here. +# if GTEST_HAS_EXCEPTIONS +# define GTEST_EXECUTE_DEATH_TEST_STATEMENT_(statement, death_test) \ + try { \ + GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement); \ + } catch (const ::std::exception& gtest_exception) { \ + fprintf(\ + stderr, \ + "\n%s: Caught std::exception-derived exception escaping the " \ + "death test statement. Exception message: %s\n", \ + ::testing::internal::FormatFileLocation(__FILE__, __LINE__).c_str(), \ + gtest_exception.what()); \ + fflush(stderr); \ + death_test->Abort(::testing::internal::DeathTest::TEST_THREW_EXCEPTION); \ + } catch (...) { \ + death_test->Abort(::testing::internal::DeathTest::TEST_THREW_EXCEPTION); \ + } + +# else +# define GTEST_EXECUTE_DEATH_TEST_STATEMENT_(statement, death_test) \ + GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement) + +# endif + +// This macro is for implementing ASSERT_DEATH*, EXPECT_DEATH*, +// ASSERT_EXIT*, and EXPECT_EXIT*. +# define GTEST_DEATH_TEST_(statement, predicate, regex, fail) \ + GTEST_AMBIGUOUS_ELSE_BLOCKER_ \ + if (::testing::internal::AlwaysTrue()) { \ + const ::testing::internal::RE& gtest_regex = (regex); \ + ::testing::internal::DeathTest* gtest_dt; \ + if (!::testing::internal::DeathTest::Create(#statement, >est_regex, \ + __FILE__, __LINE__, >est_dt)) { \ + goto GTEST_CONCAT_TOKEN_(gtest_label_, __LINE__); \ + } \ + if (gtest_dt != NULL) { \ + ::testing::internal::scoped_ptr< ::testing::internal::DeathTest> \ + gtest_dt_ptr(gtest_dt); \ + switch (gtest_dt->AssumeRole()) { \ + case ::testing::internal::DeathTest::OVERSEE_TEST: \ + if (!gtest_dt->Passed(predicate(gtest_dt->Wait()))) { \ + goto GTEST_CONCAT_TOKEN_(gtest_label_, __LINE__); \ + } \ + break; \ + case ::testing::internal::DeathTest::EXECUTE_TEST: { \ + ::testing::internal::DeathTest::ReturnSentinel \ + gtest_sentinel(gtest_dt); \ + GTEST_EXECUTE_DEATH_TEST_STATEMENT_(statement, gtest_dt); \ + gtest_dt->Abort(::testing::internal::DeathTest::TEST_DID_NOT_DIE); \ + break; \ + } \ + default: \ + break; \ + } \ + } \ + } else \ + GTEST_CONCAT_TOKEN_(gtest_label_, __LINE__): \ + fail(::testing::internal::DeathTest::LastMessage()) +// The symbol "fail" here expands to something into which a message +// can be streamed. + +// A class representing the parsed contents of the +// --gtest_internal_run_death_test flag, as it existed when +// RUN_ALL_TESTS was called. +class InternalRunDeathTestFlag { + public: + InternalRunDeathTestFlag(const String& a_file, + int a_line, + int an_index, + int a_write_fd) + : file_(a_file), line_(a_line), index_(an_index), + write_fd_(a_write_fd) {} + + ~InternalRunDeathTestFlag() { + if (write_fd_ >= 0) + posix::Close(write_fd_); + } + + String file() const { return file_; } + int line() const { return line_; } + int index() const { return index_; } + int write_fd() const { return write_fd_; } + + private: + String file_; + int line_; + int index_; + int write_fd_; + + GTEST_DISALLOW_COPY_AND_ASSIGN_(InternalRunDeathTestFlag); +}; + +// Returns a newly created InternalRunDeathTestFlag object with fields +// initialized from the GTEST_FLAG(internal_run_death_test) flag if +// the flag is specified; otherwise returns NULL. +InternalRunDeathTestFlag* ParseInternalRunDeathTestFlag(); + +#else // GTEST_HAS_DEATH_TEST + +// This macro is used for implementing macros such as +// EXPECT_DEATH_IF_SUPPORTED and ASSERT_DEATH_IF_SUPPORTED on systems where +// death tests are not supported. Those macros must compile on such systems +// iff EXPECT_DEATH and ASSERT_DEATH compile with the same parameters on +// systems that support death tests. This allows one to write such a macro +// on a system that does not support death tests and be sure that it will +// compile on a death-test supporting system. +// +// Parameters: +// statement - A statement that a macro such as EXPECT_DEATH would test +// for program termination. This macro has to make sure this +// statement is compiled but not executed, to ensure that +// EXPECT_DEATH_IF_SUPPORTED compiles with a certain +// parameter iff EXPECT_DEATH compiles with it. +// regex - A regex that a macro such as EXPECT_DEATH would use to test +// the output of statement. This parameter has to be +// compiled but not evaluated by this macro, to ensure that +// this macro only accepts expressions that a macro such as +// EXPECT_DEATH would accept. +// terminator - Must be an empty statement for EXPECT_DEATH_IF_SUPPORTED +// and a return statement for ASSERT_DEATH_IF_SUPPORTED. +// This ensures that ASSERT_DEATH_IF_SUPPORTED will not +// compile inside functions where ASSERT_DEATH doesn't +// compile. +// +// The branch that has an always false condition is used to ensure that +// statement and regex are compiled (and thus syntactically correct) but +// never executed. The unreachable code macro protects the terminator +// statement from generating an 'unreachable code' warning in case +// statement unconditionally returns or throws. The Message constructor at +// the end allows the syntax of streaming additional messages into the +// macro, for compilational compatibility with EXPECT_DEATH/ASSERT_DEATH. +# define GTEST_UNSUPPORTED_DEATH_TEST_(statement, regex, terminator) \ + GTEST_AMBIGUOUS_ELSE_BLOCKER_ \ + if (::testing::internal::AlwaysTrue()) { \ + GTEST_LOG_(WARNING) \ + << "Death tests are not supported on this platform.\n" \ + << "Statement '" #statement "' cannot be verified."; \ + } else if (::testing::internal::AlwaysFalse()) { \ + ::testing::internal::RE::PartialMatch(".*", (regex)); \ + GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement); \ + terminator; \ + } else \ + ::testing::Message() + +#endif // GTEST_HAS_DEATH_TEST + +} // namespace internal +} // namespace testing + +#endif // GTEST_INCLUDE_GTEST_INTERNAL_GTEST_DEATH_TEST_INTERNAL_H_ |