+++ /dev/null
-// 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>
-
-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 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 two reasons that a test might be aborted.
- enum AbortReason { TEST_ENCOUNTERED_RETURN_STATEMENT, 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.
-bool ExitedUnsuccessfully(int exit_status);
-
-// 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 (true) { \
- 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_HIDE_UNREACHABLE_CODE_(statement); \
- gtest_dt->Abort(::testing::internal::DeathTest::TEST_DID_NOT_DIE); \
- 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& file,
- int line,
- int index,
- int write_fd)
- : file_(file), line_(line), index_(index), write_fd_(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();
-
-#endif // GTEST_HAS_DEATH_TEST
-
-} // namespace internal
-} // namespace testing
-
-#endif // GTEST_INCLUDE_GTEST_INTERNAL_GTEST_DEATH_TEST_INTERNAL_H_
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