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 | 380 |
1 files changed, 380 insertions, 0 deletions
diff --git a/libc/malloc_debug/tests/malloc_debug_config_tests.cpp b/libc/malloc_debug/tests/malloc_debug_config_tests.cpp new file mode 100644 index 000000000..ad25948b1 --- /dev/null +++ b/libc/malloc_debug/tests/malloc_debug_config_tests.cpp @@ -0,0 +1,380 @@ +/* + * Copyright (C) 2015 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <limits.h> + +#include <memory> +#include <string> + +#include <gtest/gtest.h> + +#include "Config.h" + +#include "log_fake.h" + +extern "C" int property_set(const char*, const char*); + +class MallocDebugConfigTest : public ::testing::Test { + protected: + void SetUp() override { + resetLogs(); + } + + void TearDown() override { + } + + std::unique_ptr<Config> config; + + bool InitConfig(const char* property_value) { + config.reset(new Config); + property_set("libc.debug.malloc.options", property_value); + return config->SetFromProperties(); + } +}; + +std::string usage_string( + "6 malloc_debug malloc debug options usage:\n" + "6 malloc_debug \n" + "6 malloc_debug front_guard[=XX]\n" + "6 malloc_debug Enables a front guard on all allocations. If XX is set\n" + "6 malloc_debug it sets the number of bytes in the guard. The default is\n" + "6 malloc_debug 32 bytes.\n" + "6 malloc_debug \n" + "6 malloc_debug rear_guard[=XX]\n" + "6 malloc_debug Enables a rear guard on all allocations. If XX is set\n" + "6 malloc_debug it sets the number of bytes in the guard. The default is\n" + "6 malloc_debug 32 bytes.\n" + "6 malloc_debug \n" + "6 malloc_debug guard[=XX]\n" + "6 malloc_debug Enables both a front guard and a rear guard on all allocations.\n" + "6 malloc_debug If XX is set it sets the number of bytes in both guards.\n" + "6 malloc_debug The default is 32 bytes.\n" + "6 malloc_debug \n" + "6 malloc_debug backtrace[=XX]\n" + "6 malloc_debug Enable capturing the backtrace at the point of allocation.\n" + "6 malloc_debug If XX is set it sets the number of backtrace frames.\n" + "6 malloc_debug The default is 16 frames.\n" + "6 malloc_debug \n" + "6 malloc_debug backtrace_enable_on_signal[=XX]\n" + "6 malloc_debug Enable capturing the backtrace at the point of allocation.\n" + "6 malloc_debug The backtrace capture is not enabled until the process\n" + "6 malloc_debug receives a signal. If XX is set it sets the number of backtrace\n" + "6 malloc_debug frames. The default is 16 frames.\n" + "6 malloc_debug \n" + "6 malloc_debug fill_on_alloc[=XX]\n" + "6 malloc_debug On first allocation, fill with the value 0xeb.\n" + "6 malloc_debug If XX is set it will only fill up to XX bytes of the\n" + "6 malloc_debug allocation. The default is to fill the entire allocation.\n" + "6 malloc_debug \n" + "6 malloc_debug fill_on_free[=XX]\n" + "6 malloc_debug On free, fill with the value 0xef. If XX is set it will\n" + "6 malloc_debug only fill up to XX bytes of the allocation. The default is to\n" + "6 malloc_debug fill the entire allocation.\n" + "6 malloc_debug \n" + "6 malloc_debug fill[=XX]\n" + "6 malloc_debug On both first allocation free, fill with the value 0xeb on\n" + "6 malloc_debug first allocation and the value 0xef. If XX is set, only fill\n" + "6 malloc_debug up to XX bytes. The default is to fill the entire allocation.\n" + "6 malloc_debug \n" + "6 malloc_debug expand_alloc[=XX]\n" + "6 malloc_debug Allocate an extra number of bytes for every allocation call.\n" + "6 malloc_debug If XX is set, that is the number of bytes to expand the\n" + "6 malloc_debug allocation by. The default is 16 bytes.\n" + "6 malloc_debug \n" + "6 malloc_debug free_track[=XX]\n" + "6 malloc_debug When a pointer is freed, do not free the memory right away.\n" + "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 default is to record 100 allocations.\n" + "6 malloc_debug \n" + "6 malloc_debug leak_track\n" + "6 malloc_debug Enable the leak tracking of memory allocations.\n" +); + +TEST_F(MallocDebugConfigTest, unknown_option) { + + ASSERT_FALSE(InitConfig("unknown_option")); + + ASSERT_STREQ("", getFakeLogBuf().c_str()); + std::string log_msg("6 malloc_debug malloc_testing: unknown option unknown_option\n"); + ASSERT_STREQ((log_msg + usage_string).c_str(), getFakeLogPrint().c_str()); +} + +TEST_F(MallocDebugConfigTest, unparseable_number) { + ASSERT_FALSE(InitConfig("backtrace=XXX")); + + ASSERT_STREQ("", getFakeLogBuf().c_str()); + std::string log_msg("6 malloc_debug malloc_testing: bad value for option 'backtrace'\n"); + ASSERT_STREQ((log_msg + usage_string).c_str(), getFakeLogPrint().c_str()); +} + +TEST_F(MallocDebugConfigTest, illegal_value_zero) { + ASSERT_FALSE(InitConfig("backtrace=0")); + + ASSERT_STREQ("", getFakeLogBuf().c_str()); + std::string log_msg("6 malloc_debug malloc_testing: bad value for option 'backtrace', value must be > 0: 0\n"); + ASSERT_STREQ((log_msg + usage_string).c_str(), getFakeLogPrint().c_str()); +} + +TEST_F(MallocDebugConfigTest, no_space) { + ASSERT_FALSE(InitConfig("backtrace=10front_guard")); + + ASSERT_STREQ("", getFakeLogBuf().c_str()); + std::string log_msg( + "6 malloc_debug malloc_testing: bad value for option 'backtrace', " + "non space found after option: front_guard\n"); + ASSERT_STREQ((log_msg + usage_string).c_str(), getFakeLogPrint().c_str()); +} + +TEST_F(MallocDebugConfigTest, illegal_value_negative) { + ASSERT_FALSE(InitConfig("backtrace=-1")); + + ASSERT_STREQ("", getFakeLogBuf().c_str()); + std::string log_msg("6 malloc_debug malloc_testing: bad value for option 'backtrace', value must be > 0: -1\n"); + ASSERT_STREQ((log_msg + usage_string).c_str(), getFakeLogPrint().c_str()); +} + +TEST_F(MallocDebugConfigTest, overflow) { + ASSERT_FALSE(InitConfig("backtrace=99999999999999999999")); + + ASSERT_STREQ("", getFakeLogBuf().c_str()); + std::string log_msg( + "6 malloc_debug malloc_testing: bad value for option 'backtrace': " + "Math result not representable\n"); + ASSERT_STREQ((log_msg + usage_string).c_str(), getFakeLogPrint().c_str()); +} + +TEST_F(MallocDebugConfigTest, set_value_error) { + ASSERT_FALSE(InitConfig("leak_track=12")); + + ASSERT_STREQ("", getFakeLogBuf().c_str()); + std::string log_msg( + "6 malloc_debug malloc_testing: value set for option 'leak_track' " + "which does not take a value\n"); + ASSERT_STREQ((log_msg + usage_string).c_str(), getFakeLogPrint().c_str()); +} + +TEST_F(MallocDebugConfigTest, space_before_equal) { + ASSERT_TRUE(InitConfig("backtrace =10")); + ASSERT_EQ(BACKTRACE | TRACK_ALLOCS, config->options); + ASSERT_EQ(10U, config->backtrace_frames); + + ASSERT_STREQ("", getFakeLogBuf().c_str()); + ASSERT_STREQ("", getFakeLogPrint().c_str()); +} + +TEST_F(MallocDebugConfigTest, space_after_equal) { + ASSERT_TRUE(InitConfig("backtrace= 10")); + ASSERT_EQ(BACKTRACE | TRACK_ALLOCS, config->options); + ASSERT_EQ(10U, config->backtrace_frames); + + ASSERT_STREQ("", getFakeLogBuf().c_str()); + ASSERT_STREQ("", getFakeLogPrint().c_str()); +} + +TEST_F(MallocDebugConfigTest, extra_space) { + ASSERT_TRUE(InitConfig(" backtrace=64 ")); + ASSERT_EQ(BACKTRACE | TRACK_ALLOCS, config->options); + ASSERT_EQ(64U, config->backtrace_frames); + + ASSERT_STREQ("", getFakeLogBuf().c_str()); + ASSERT_STREQ("", getFakeLogPrint().c_str()); +} + +TEST_F(MallocDebugConfigTest, multiple_options) { + ASSERT_TRUE(InitConfig(" backtrace=64 front_guard=24")); + ASSERT_EQ(BACKTRACE | TRACK_ALLOCS | FRONT_GUARD, config->options); + ASSERT_EQ(64U, config->backtrace_frames); + ASSERT_EQ(24U, config->front_guard_bytes); + + ASSERT_STREQ("", getFakeLogBuf().c_str()); + ASSERT_STREQ("", getFakeLogPrint().c_str()); +} + +TEST_F(MallocDebugConfigTest, front_guard) { + ASSERT_TRUE(InitConfig("front_guard=24")); + ASSERT_EQ(FRONT_GUARD, config->options); + ASSERT_EQ(24U, config->front_guard_bytes); + + ASSERT_TRUE(InitConfig("front_guard")); + ASSERT_EQ(FRONT_GUARD, config->options); + ASSERT_EQ(32U, config->front_guard_bytes); + + ASSERT_TRUE(InitConfig("front_guard=39")); + ASSERT_EQ(FRONT_GUARD, config->options); + ASSERT_EQ(40U, config->front_guard_bytes); + + ASSERT_STREQ("", getFakeLogBuf().c_str()); + ASSERT_STREQ("", getFakeLogPrint().c_str()); +} + +TEST_F(MallocDebugConfigTest, rear_guard) { + ASSERT_TRUE(InitConfig("rear_guard=50")); + ASSERT_EQ(REAR_GUARD, config->options); + ASSERT_EQ(50U, config->rear_guard_bytes); + + ASSERT_TRUE(InitConfig("rear_guard")); + ASSERT_EQ(REAR_GUARD, config->options); + ASSERT_EQ(32U, config->rear_guard_bytes); + + ASSERT_STREQ("", getFakeLogBuf().c_str()); + ASSERT_STREQ("", getFakeLogPrint().c_str()); +} + +TEST_F(MallocDebugConfigTest, guard) { + ASSERT_TRUE(InitConfig("guard=32")); + ASSERT_EQ(FRONT_GUARD | REAR_GUARD, config->options); + ASSERT_EQ(32U, config->front_guard_bytes); + ASSERT_EQ(32U, config->rear_guard_bytes); + + ASSERT_TRUE(InitConfig("guard")); + ASSERT_EQ(FRONT_GUARD | REAR_GUARD, config->options); + ASSERT_EQ(32U, config->front_guard_bytes); + ASSERT_EQ(32U, config->rear_guard_bytes); + + ASSERT_STREQ("", getFakeLogBuf().c_str()); + ASSERT_STREQ("", getFakeLogPrint().c_str()); +} + +TEST_F(MallocDebugConfigTest, backtrace) { + ASSERT_TRUE(InitConfig("backtrace=64")); + ASSERT_EQ(BACKTRACE | TRACK_ALLOCS, config->options); + ASSERT_EQ(64U, config->backtrace_frames); + + ASSERT_TRUE(InitConfig("backtrace")); + ASSERT_EQ(BACKTRACE | TRACK_ALLOCS, config->options); + ASSERT_EQ(16U, config->backtrace_frames); + + ASSERT_STREQ("", getFakeLogBuf().c_str()); + ASSERT_STREQ("", getFakeLogPrint().c_str()); +} + +TEST_F(MallocDebugConfigTest, backtrace_enable_on_signal) { + ASSERT_TRUE(InitConfig("backtrace_enable_on_signal=64")); + ASSERT_EQ(BACKTRACE | TRACK_ALLOCS, config->options); + ASSERT_EQ(64U, config->backtrace_frames); + + ASSERT_TRUE(InitConfig("backtrace_enable_on_signal")); + ASSERT_EQ(BACKTRACE | TRACK_ALLOCS, config->options); + ASSERT_EQ(16U, config->backtrace_frames); + + ASSERT_STREQ("", getFakeLogBuf().c_str()); + ASSERT_STREQ("", getFakeLogPrint().c_str()); +} + +TEST_F(MallocDebugConfigTest, fill_on_alloc) { + ASSERT_TRUE(InitConfig("fill_on_alloc=64")); + ASSERT_EQ(FILL_ON_ALLOC, config->options); + ASSERT_EQ(64U, config->fill_on_alloc_bytes); + + ASSERT_TRUE(InitConfig("fill_on_alloc")); + ASSERT_EQ(FILL_ON_ALLOC, config->options); + ASSERT_EQ(SIZE_MAX, config->fill_on_alloc_bytes); + + ASSERT_STREQ("", getFakeLogBuf().c_str()); + ASSERT_STREQ("", getFakeLogPrint().c_str()); +} + +TEST_F(MallocDebugConfigTest, fill_on_free) { + ASSERT_TRUE(InitConfig("fill_on_free=64")); + ASSERT_EQ(FILL_ON_FREE, config->options); + ASSERT_EQ(64U, config->fill_on_free_bytes); + + ASSERT_TRUE(InitConfig("fill_on_free")); + ASSERT_EQ(FILL_ON_FREE, config->options); + ASSERT_EQ(SIZE_MAX, config->fill_on_free_bytes); + + ASSERT_STREQ("", getFakeLogBuf().c_str()); + ASSERT_STREQ("", getFakeLogPrint().c_str()); +} + +TEST_F(MallocDebugConfigTest, fill) { + ASSERT_TRUE(InitConfig("fill=64")); + ASSERT_EQ(FILL_ON_ALLOC | FILL_ON_FREE, config->options); + ASSERT_EQ(64U, config->fill_on_alloc_bytes); + ASSERT_EQ(64U, config->fill_on_free_bytes); + + ASSERT_TRUE(InitConfig("fill")); + ASSERT_EQ(FILL_ON_ALLOC | FILL_ON_FREE, config->options); + ASSERT_EQ(SIZE_MAX, config->fill_on_alloc_bytes); + ASSERT_EQ(SIZE_MAX, config->fill_on_free_bytes); + + ASSERT_STREQ("", getFakeLogBuf().c_str()); + ASSERT_STREQ("", getFakeLogPrint().c_str()); +} + +TEST_F(MallocDebugConfigTest, expand_alloc) { + ASSERT_TRUE(InitConfig("expand_alloc=1234")); + ASSERT_EQ(EXPAND_ALLOC, config->options); + ASSERT_EQ(1234U, config->expand_alloc_bytes); + + ASSERT_TRUE(InitConfig("expand_alloc")); + ASSERT_EQ(EXPAND_ALLOC, config->options); + ASSERT_EQ(16U, config->expand_alloc_bytes); + + ASSERT_STREQ("", getFakeLogBuf().c_str()); + ASSERT_STREQ("", getFakeLogPrint().c_str()); +} + +TEST_F(MallocDebugConfigTest, free_track) { + ASSERT_TRUE(InitConfig("free_track=1234")); + 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_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_STREQ("", getFakeLogBuf().c_str()); + ASSERT_STREQ("", getFakeLogPrint().c_str()); +} + +TEST_F(MallocDebugConfigTest, free_track_and_fill_on_free) { + ASSERT_TRUE(InitConfig("free_track=1234 fill_on_free=32")); + 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_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_STREQ("", getFakeLogBuf().c_str()); + ASSERT_STREQ("", getFakeLogPrint().c_str()); +} + +TEST_F(MallocDebugConfigTest, leak_track) { + ASSERT_TRUE(InitConfig("leak_track")); + ASSERT_EQ(LEAK_TRACK | TRACK_ALLOCS, config->options); + + ASSERT_STREQ("", getFakeLogBuf().c_str()); + ASSERT_STREQ("", getFakeLogPrint().c_str()); +} + +TEST_F(MallocDebugConfigTest, leak_track_fail) { + ASSERT_FALSE(InitConfig("leak_track=100")); + + ASSERT_STREQ("", getFakeLogBuf().c_str()); + std::string log_msg( + "6 malloc_debug malloc_testing: value set for option 'leak_track' " + "which does not take a value\n"); + ASSERT_STREQ((log_msg + usage_string).c_str(), getFakeLogPrint().c_str()); +} |