From 84ec2e0365d791e4ebc7ec249f09078fb5ab6caa Mon Sep 17 00:00:00 2001 From: Victor Costan Date: Fri, 23 Feb 2018 14:55:25 -0800 Subject: Switch default death test style back to "fast". Google Test has recently (02/09/2018) switched the default death test style from "fast" to "threadsafe" in https://github.com/google/googletest/commit/ec7faa943d7817c81ce7bdf71a21ebc9244dc8de Threadsafe death tests have been used internally for a while, and are proven to be a better default. However, adopting this better default can be challenging for large projects with a significant investment in custom infrastructure built on top of Google Test. The same custom infrastructure can make it difficult for large projects to switch back to the old default by passing in --gtest_death_test_style=fast. For the reasons above, the default switch is considered too disruptive, and this CL reverts it. This CL also introduces the GTEST_DEFAULT_DEATH_TEST_STYLE preprocesor macro, which replaces the hard-coded default. The macro can be defined in gtest/internal/custom/gtest-port.h by projects that are ready to migrate to thread-safe death tests. --- googletest/include/gtest/internal/gtest-port.h | 10 ++++++++++ googletest/src/gtest-death-test.cc | 6 +++++- googletest/test/gtest_env_var_test.py | 2 +- 3 files changed, 16 insertions(+), 2 deletions(-) diff --git a/googletest/include/gtest/internal/gtest-port.h b/googletest/include/gtest/internal/gtest-port.h index 81f047b..2c819c9 100644 --- a/googletest/include/gtest/internal/gtest-port.h +++ b/googletest/include/gtest/internal/gtest-port.h @@ -107,6 +107,12 @@ // GTEST_CREATE_SHARED_LIBRARY // - Define to 1 when compiling Google Test itself // as a shared library. +// GTEST_DEFAULT_DEATH_TEST_STYLE +// - The default value of --gtest_death_test_style. +// The legacy default has been "fast" in the open +// source version since 2008. The recommended value +// is "threadsafe", and can be set in +// custom/gtest-port.h. // Platform-indicating macros // -------------------------- @@ -974,6 +980,10 @@ using ::std::tuple_size; # define GTEST_API_ #endif // GTEST_API_ +#ifndef GTEST_DEFAULT_DEATH_TEST_STYLE +# define GTEST_DEFAULT_DEATH_TEST_STYLE "fast" +#endif // GTEST_DEFAULT_DEATH_TEST_STYLE + #ifdef __GNUC__ // Ask the compiler to never inline a given function. # define GTEST_NO_INLINE_ __attribute__((noinline)) diff --git a/googletest/src/gtest-death-test.cc b/googletest/src/gtest-death-test.cc index 852912b..9ecab8f 100644 --- a/googletest/src/gtest-death-test.cc +++ b/googletest/src/gtest-death-test.cc @@ -73,7 +73,11 @@ namespace testing { // Constants. // The default death test style. -static const char kDefaultDeathTestStyle[] = "threadsafe"; +// +// This is defined in internal/gtest-port.h as "fast", but can be overridden by +// a definition in internal/custom/gtest-port.h. The recommended value, which is +// used internally at Google, is "threadsafe". +static const char kDefaultDeathTestStyle[] = GTEST_DEFAULT_DEATH_TEST_STYLE; GTEST_DEFINE_string_( death_test_style, diff --git a/googletest/test/gtest_env_var_test.py b/googletest/test/gtest_env_var_test.py index 2fe9cd5..7af00ce 100755 --- a/googletest/test/gtest_env_var_test.py +++ b/googletest/test/gtest_env_var_test.py @@ -92,7 +92,7 @@ class GTestEnvVarTest(gtest_test_utils.TestCase): TestFlag('print_time', '0', '1') TestFlag('repeat', '999', '1') TestFlag('throw_on_failure', '1', '0') - TestFlag('death_test_style', 'fast', 'threadsafe') + TestFlag('death_test_style', 'threadsafe', 'fast') TestFlag('catch_exceptions', '0', '1') if IS_LINUX: -- cgit v0.12