diff options
Diffstat (limited to 'libc/malloc_debug/tests/malloc_debug_config_tests.cpp')
| -rw-r--r-- | libc/malloc_debug/tests/malloc_debug_config_tests.cpp | 61 |
1 files changed, 60 insertions, 1 deletions
diff --git a/libc/malloc_debug/tests/malloc_debug_config_tests.cpp b/libc/malloc_debug/tests/malloc_debug_config_tests.cpp index 247e31979..551e49860 100644 --- a/libc/malloc_debug/tests/malloc_debug_config_tests.cpp +++ b/libc/malloc_debug/tests/malloc_debug_config_tests.cpp @@ -99,9 +99,17 @@ std::string usage_string( "6 malloc_debug Instead, keep XX of these allocations around and then verify\n" "6 malloc_debug that they have not been modified when the total number of freed\n" "6 malloc_debug allocations exceeds the XX amount. When the program terminates,\n" - "6 malloc_debug the rest of these allocations are verified.\n" + "6 malloc_debug the rest of these allocations are verified. When this option is\n" + "6 malloc_debug enabled, it automatically records the backtrace at the time of the free.\n" "6 malloc_debug The default is to record 100 allocations.\n" "6 malloc_debug \n" + "6 malloc_debug free_track_backtrace_num_frames[=XX]\n" + "6 malloc_debug This option only has meaning if free_track is set. This indicates\n" + "6 malloc_debug how many backtrace frames to capture when an allocation is freed.\n" + "6 malloc_debug If XX is set, that is the number of frames to capture. If XX\n" + "6 malloc_debug is set to zero, then no backtrace will be captured.\n" + "6 malloc_debug The default is to record 16 frames.\n" + "6 malloc_debug \n" "6 malloc_debug leak_track\n" "6 malloc_debug Enable the leak tracking of memory allocations.\n" ); @@ -339,11 +347,13 @@ TEST_F(MallocDebugConfigTest, free_track) { ASSERT_EQ(FREE_TRACK | FILL_ON_FREE, config->options); ASSERT_EQ(1234U, config->free_track_allocations); ASSERT_EQ(SIZE_MAX, config->fill_on_free_bytes); + ASSERT_EQ(16U, config->free_track_backtrace_num_frames); ASSERT_TRUE(InitConfig("free_track")); ASSERT_EQ(FREE_TRACK | FILL_ON_FREE, config->options); ASSERT_EQ(100U, config->free_track_allocations); ASSERT_EQ(SIZE_MAX, config->fill_on_free_bytes); + ASSERT_EQ(16U, config->free_track_backtrace_num_frames); ASSERT_STREQ("", getFakeLogBuf().c_str()); ASSERT_STREQ("", getFakeLogPrint().c_str()); @@ -354,11 +364,50 @@ TEST_F(MallocDebugConfigTest, free_track_and_fill_on_free) { ASSERT_EQ(FREE_TRACK | FILL_ON_FREE, config->options); ASSERT_EQ(1234U, config->free_track_allocations); ASSERT_EQ(32U, config->fill_on_free_bytes); + ASSERT_EQ(16U, config->free_track_backtrace_num_frames); ASSERT_TRUE(InitConfig("free_track fill_on_free=60")); ASSERT_EQ(FREE_TRACK | FILL_ON_FREE, config->options); ASSERT_EQ(100U, config->free_track_allocations); ASSERT_EQ(60U, config->fill_on_free_bytes); + ASSERT_EQ(16U, config->free_track_backtrace_num_frames); + + ASSERT_STREQ("", getFakeLogBuf().c_str()); + ASSERT_STREQ("", getFakeLogPrint().c_str()); +} + +TEST_F(MallocDebugConfigTest, free_track_backtrace_num_frames) { + ASSERT_TRUE(InitConfig("free_track_backtrace_num_frames=123")); + + ASSERT_EQ(0U, config->options); + ASSERT_EQ(123U, config->free_track_backtrace_num_frames); + + ASSERT_TRUE(InitConfig("free_track_backtrace_num_frames")); + ASSERT_EQ(0U, config->options); + ASSERT_EQ(16U, config->free_track_backtrace_num_frames); + + ASSERT_STREQ("", getFakeLogBuf().c_str()); + ASSERT_STREQ("", getFakeLogPrint().c_str()); +} + +TEST_F(MallocDebugConfigTest, free_track_backtrace_num_frames_zero) { + ASSERT_TRUE(InitConfig("free_track_backtrace_num_frames=0")); + + ASSERT_EQ(0U, config->options); + ASSERT_EQ(0U, config->free_track_backtrace_num_frames); + + ASSERT_STREQ("", getFakeLogBuf().c_str()); + ASSERT_STREQ("", getFakeLogPrint().c_str()); +} + +TEST_F(MallocDebugConfigTest, free_track_backtrace_num_frames_and_free_track) { + ASSERT_TRUE(InitConfig("free_track free_track_backtrace_num_frames=123")); + ASSERT_EQ(FREE_TRACK | FILL_ON_FREE, config->options); + ASSERT_EQ(123U, config->free_track_backtrace_num_frames); + + ASSERT_TRUE(InitConfig("free_track free_track_backtrace_num_frames")); + ASSERT_EQ(FREE_TRACK | FILL_ON_FREE, config->options); + ASSERT_EQ(16U, config->free_track_backtrace_num_frames); ASSERT_STREQ("", getFakeLogBuf().c_str()); ASSERT_STREQ("", getFakeLogPrint().c_str()); @@ -550,3 +599,13 @@ TEST_F(MallocDebugConfigTest, free_track_max_error) { "value must be <= 16384: 21000\n"); ASSERT_STREQ((log_msg + usage_string).c_str(), getFakeLogPrint().c_str()); } + +TEST_F(MallocDebugConfigTest, free_track_backtrace_num_frames_max_error) { + ASSERT_FALSE(InitConfig("free_track_backtrace_num_frames=400")); + + ASSERT_STREQ("", getFakeLogBuf().c_str()); + std::string log_msg( + "6 malloc_debug malloc_testing: bad value for option 'free_track_backtrace_num_frames', " + "value must be <= 256: 400\n"); + ASSERT_STREQ((log_msg + usage_string).c_str(), getFakeLogPrint().c_str()); +} |