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author | zhanyong.wan <zhanyong.wan@861a406c-534a-0410-8894-cb66d6ee9925> | 2009-07-14 22:56:46 +0000 |
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committer | zhanyong.wan <zhanyong.wan@861a406c-534a-0410-8894-cb66d6ee9925> | 2009-07-14 22:56:46 +0000 |
commit | 8bdb31e0540c46de485b362178f60e8bb947ff43 (patch) | |
tree | 439e910bb34bbb3856fc471122220c1fff16ed5f /src/gtest-internal-inl.h | |
parent | 89080477aee9bd91536c9fb47bc31c62ea7d75bb (diff) | |
download | googletest-8bdb31e0540c46de485b362178f60e8bb947ff43.tar.gz googletest-8bdb31e0540c46de485b362178f60e8bb947ff43.tar.bz2 googletest-8bdb31e0540c46de485b362178f60e8bb947ff43.zip |
Adds the command line flags needed for test shuffling. Most code by Josh Kelley.
Diffstat (limited to 'src/gtest-internal-inl.h')
-rw-r--r-- | src/gtest-internal-inl.h | 47 |
1 files changed, 46 insertions, 1 deletions
diff --git a/src/gtest-internal-inl.h b/src/gtest-internal-inl.h index 245dda1c..92975dd0 100644 --- a/src/gtest-internal-inl.h +++ b/src/gtest-internal-inl.h @@ -87,9 +87,42 @@ const char kFilterFlag[] = "filter"; const char kListTestsFlag[] = "list_tests"; const char kOutputFlag[] = "output"; const char kPrintTimeFlag[] = "print_time"; +const char kRandomSeedFlag[] = "random_seed"; const char kRepeatFlag[] = "repeat"; +const char kShuffleFlag[] = "shuffle"; const char kThrowOnFailureFlag[] = "throw_on_failure"; +// A valid random seed must be in [1, kMaxRandomSeed]. +const unsigned int kMaxRandomSeed = 99999; + +// Returns the current time in milliseconds. +TimeInMillis GetTimeInMillis(); + +// Returns a random seed in range [1, kMaxRandomSeed] based on the +// given --gtest_random_seed flag value. +inline int GetRandomSeedFromFlag(Int32 random_seed_flag) { + const unsigned int raw_seed = (random_seed_flag == 0) ? + static_cast<unsigned int>(GetTimeInMillis()) : + static_cast<unsigned int>(random_seed_flag); + + // Normalizes the actual seed to range [1, kMaxRandomSeed] such that + // it's easy to type. + const int normalized_seed = + static_cast<int>((raw_seed - 1U) % kMaxRandomSeed) + 1; + return normalized_seed; +} + +// Returns the first valid random seed after 'seed'. The behavior is +// undefined if 'seed' is invalid. The seed after kMaxRandomSeed is +// considered to be 1. +inline int GetNextRandomSeed(int seed) { + GTEST_CHECK_(1 <= seed && seed <= kMaxRandomSeed) + << "Invalid random seed " << seed << " - must be in [1, " + << kMaxRandomSeed << "]."; + const int next_seed = seed + 1; + return (next_seed > kMaxRandomSeed) ? 1 : next_seed; +} + // This class saves the values of all Google Test flags in its c'tor, and // restores them in its d'tor. class GTestFlagSaver { @@ -107,7 +140,9 @@ class GTestFlagSaver { list_tests_ = GTEST_FLAG(list_tests); output_ = GTEST_FLAG(output); print_time_ = GTEST_FLAG(print_time); + random_seed_ = GTEST_FLAG(random_seed); repeat_ = GTEST_FLAG(repeat); + shuffle_ = GTEST_FLAG(shuffle); throw_on_failure_ = GTEST_FLAG(throw_on_failure); } @@ -124,7 +159,9 @@ class GTestFlagSaver { GTEST_FLAG(list_tests) = list_tests_; GTEST_FLAG(output) = output_; GTEST_FLAG(print_time) = print_time_; + GTEST_FLAG(random_seed) = random_seed_; GTEST_FLAG(repeat) = repeat_; + GTEST_FLAG(shuffle) = shuffle_; GTEST_FLAG(throw_on_failure) = throw_on_failure_; } private: @@ -141,7 +178,9 @@ class GTestFlagSaver { String output_; bool print_time_; bool pretty_; + internal::Int32 random_seed_; internal::Int32 repeat_; + bool shuffle_; bool throw_on_failure_; } GTEST_ATTRIBUTE_UNUSED_; @@ -884,6 +923,9 @@ class UnitTestImpl { friend class ReplaceDeathTestFactory; #endif // GTEST_HAS_DEATH_TEST + // Gets the random seed used at the start of the current test run. + int random_seed() const { return random_seed_; } + private: friend class ::testing::UnitTest; @@ -932,7 +974,7 @@ class UnitTestImpl { // This points to the TestCase for the currently running test. It // changes as Google Test goes through one test case after another. // When no test is running, this is set to NULL and Google Test - // stores assertion results in ad_hoc_test_result_. Initally NULL. + // stores assertion results in ad_hoc_test_result_. Initially NULL. TestCase* current_test_case_; // This points to the TestInfo for the currently running test. It @@ -963,6 +1005,9 @@ class UnitTestImpl { // desired. OsStackTraceGetterInterface* os_stack_trace_getter_; + // The random number seed used at the beginning of the test run. + int random_seed_; + // How long the test took to run, in milliseconds. TimeInMillis elapsed_time_; |