| // Copyright (C) 2021 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 "instruction_test.cpp" |
| |
| #include <set> |
| |
| #include <ditto/instruction_set.h> |
| #include <ditto/read_write_file.h> |
| |
| using ::dittosuite::SharedVariables; |
| using ::testing::_; |
| using ::testing::InSequence; |
| using ::testing::Invoke; |
| using ::testing::Return; |
| |
| class WriteFileTest : public InstructionTest { |
| protected: |
| int fd_ = MockSyscall::kDefaultFileDescriptor; |
| int input_key_; |
| |
| // Set input fd |
| void SetUp() override { |
| InstructionTest::SetUp(); |
| input_key_ = SharedVariables::GetKey(thread_ids, "test_input"); |
| SharedVariables::Set(input_key_, fd_); |
| } |
| }; |
| |
| using WriteFileDeathTest = WriteFileTest; |
| |
| TEST_F(WriteFileTest, CalledFSync) { |
| EXPECT_CALL(syscall_, FSync(fd_)); |
| |
| auto write_file = |
| dittosuite::WriteFile(syscall_, 1, -1, MockSyscall::kDefaultFileSize, 0, |
| dittosuite::kSequential, 0, dittosuite::kOnce, true, input_key_); |
| write_file.Run(); |
| } |
| |
| TEST_F(WriteFileTest, WroteSingleBlockSequential) { |
| EXPECT_CALL(syscall_, Write(fd_, _, MockSyscall::kDefaultFileSize, 0)); |
| |
| auto write_file = |
| dittosuite::WriteFile(syscall_, 1, -1, MockSyscall::kDefaultFileSize, 0, |
| dittosuite::kSequential, 0, dittosuite::kOnce, false, input_key_); |
| write_file.Run(); |
| } |
| |
| TEST_F(WriteFileTest, WroteSingleBlockSequentialRepeated) { |
| int repeat = 2; |
| EXPECT_CALL(syscall_, Write(fd_, _, MockSyscall::kDefaultFileSize, 0)).Times(repeat); |
| |
| auto write_file = |
| dittosuite::WriteFile(syscall_, repeat, -1, MockSyscall::kDefaultFileSize, 0, |
| dittosuite::kSequential, 0, dittosuite::kOnce, false, input_key_); |
| write_file.Run(); |
| } |
| |
| TEST_F(WriteFileTest, WroteSingleBlockRandom) { |
| EXPECT_CALL(syscall_, Write(fd_, _, MockSyscall::kDefaultFileSize, 0)); |
| |
| auto write_file = |
| dittosuite::WriteFile(syscall_, 1, -1, MockSyscall::kDefaultFileSize, 0, dittosuite::kRandom, |
| 0, dittosuite::kOnce, false, input_key_); |
| write_file.Run(); |
| } |
| |
| TEST_F(WriteFileTest, WroteSingleBlockRandomRepeated) { |
| int repeat = 2; |
| EXPECT_CALL(syscall_, Write(fd_, _, MockSyscall::kDefaultFileSize, 0)).Times(repeat); |
| |
| auto write_file = |
| dittosuite::WriteFile(syscall_, repeat, -1, MockSyscall::kDefaultFileSize, 0, |
| dittosuite::kRandom, 0, dittosuite::kOnce, false, input_key_); |
| write_file.Run(); |
| } |
| |
| TEST_F(WriteFileTest, WroteMultipleBlocksSequential) { |
| int64_t block_size = 4096; |
| int64_t size = block_size * 4; |
| |
| // Check that file size is requested once in each SetUpSingle() and |
| // pass needed file size for this test |
| EXPECT_CALL(syscall_, FStat(fd_, _)).WillOnce(Invoke([&](int, struct stat64* buf) { |
| buf->st_size = size; |
| return 0; |
| })); |
| |
| { |
| InSequence sq; |
| EXPECT_CALL(syscall_, Write(fd_, _, block_size, 0)); |
| EXPECT_CALL(syscall_, Write(fd_, _, block_size, block_size)); |
| EXPECT_CALL(syscall_, Write(fd_, _, block_size, block_size * 2)); |
| EXPECT_CALL(syscall_, Write(fd_, _, block_size, block_size * 3)); |
| } |
| |
| auto write_file = dittosuite::WriteFile(syscall_, 1, size, block_size, 0, dittosuite::kSequential, |
| 0, dittosuite::kOnce, false, input_key_); |
| write_file.Run(); |
| } |
| |
| TEST_F(WriteFileTest, WroteMultipleBlocksSequentialRepeated) { |
| int repeat = 2; |
| int64_t block_size = 4096; |
| int64_t size = block_size * 4; |
| |
| // Check that file size is requested once in each SetUpSingle() and |
| // pass needed file size for this test |
| EXPECT_CALL(syscall_, FStat(fd_, _)) |
| .Times(repeat) |
| .WillRepeatedly(Invoke([&](int, struct stat64* buf) { |
| buf->st_size = size; |
| return 0; |
| })); |
| |
| { |
| InSequence sq; |
| for (int i = 0; i < repeat; ++i) { |
| EXPECT_CALL(syscall_, Write(fd_, _, block_size, 0)); |
| EXPECT_CALL(syscall_, Write(fd_, _, block_size, block_size)); |
| EXPECT_CALL(syscall_, Write(fd_, _, block_size, block_size * 2)); |
| EXPECT_CALL(syscall_, Write(fd_, _, block_size, block_size * 3)); |
| } |
| } |
| |
| auto write_file = |
| dittosuite::WriteFile(syscall_, repeat, size, block_size, 0, dittosuite::kSequential, 0, |
| dittosuite::kOnce, false, input_key_); |
| write_file.Run(); |
| } |
| |
| TEST_F(WriteFileTest, WroteMultipleBlocksRandomRepeatedReseededOnce) { |
| int repeat = 2; |
| int64_t block_size = 4096; |
| int64_t size = block_size * repeat; |
| int64_t file_size = 1024 * 1024 * 1024; // 1GB |
| std::set<int64_t> blocks; |
| int number_of_blocks = repeat * repeat * repeat; |
| int number_of_unique_blocks = number_of_blocks; |
| |
| // Check that file size is requested once in each SetUpSingle() and |
| // pass needed file size for this test |
| EXPECT_CALL(syscall_, FStat(fd_, _)) |
| .Times(repeat * repeat) |
| .WillRepeatedly(Invoke([&](int, struct stat64* buf) { |
| buf->st_size = file_size; |
| return 0; |
| })); |
| |
| // Collect the blocks |
| EXPECT_CALL(syscall_, Write(fd_, _, block_size, _)) |
| .Times(number_of_blocks) |
| .WillRepeatedly(Invoke([&](int, char*, int64_t size, int64_t offset) { |
| blocks.insert(offset); |
| return size; |
| })); |
| |
| auto write_file = std::make_unique<dittosuite::WriteFile>(syscall_, repeat, size, block_size, 0, |
| dittosuite::kRandom, 0, |
| dittosuite::kOnce, false, input_key_); |
| std::vector<std::unique_ptr<dittosuite::Instruction>> instructions; |
| instructions.push_back(std::move(write_file)); |
| auto instruction_set = dittosuite::InstructionSet(syscall_, repeat, std::move(instructions)); |
| instruction_set.Run(); |
| |
| // Check that the number of unique blocks, that were collected, matches the expected number |
| ASSERT_EQ(static_cast<int>(blocks.size()), number_of_unique_blocks); |
| } |
| |
| TEST_F(WriteFileTest, WroteMultipleBlocksRandomRepeatedReseededEachRoundOfCycles) { |
| int repeat = 2; |
| int64_t block_size = 4096; |
| int64_t size = block_size * repeat; |
| int64_t file_size = 1024 * 1024 * 1024; // 1GB |
| std::set<int64_t> blocks; |
| int number_of_blocks = repeat * repeat * repeat; |
| int number_of_unique_blocks = repeat * repeat; |
| |
| // Check that file size is requested once in each SetUpSingle() and |
| // pass needed file size for this test |
| EXPECT_CALL(syscall_, FStat(fd_, _)) |
| .Times(repeat * repeat) |
| .WillRepeatedly(Invoke([&](int, struct stat64* buf) { |
| buf->st_size = file_size; |
| return 0; |
| })); |
| |
| // Collect the blocks |
| EXPECT_CALL(syscall_, Write(fd_, _, block_size, _)) |
| .Times(number_of_blocks) |
| .WillRepeatedly(Invoke([&](int, char*, int64_t size, int64_t offset) { |
| blocks.insert(offset); |
| return size; |
| })); |
| |
| auto write_file = std::make_unique<dittosuite::WriteFile>( |
| syscall_, repeat, size, block_size, 0, dittosuite::kRandom, 0, dittosuite::kEachRoundOfCycles, |
| false, input_key_); |
| std::vector<std::unique_ptr<dittosuite::Instruction>> instructions; |
| instructions.push_back(std::move(write_file)); |
| auto instruction_set = dittosuite::InstructionSet(syscall_, repeat, std::move(instructions)); |
| instruction_set.Run(); |
| |
| // Check that the number of unique blocks, that were collected, matches the expected number |
| ASSERT_EQ(static_cast<int>(blocks.size()), number_of_unique_blocks); |
| } |
| |
| TEST_F(WriteFileTest, WroteMultipleBlocksRandomRepeatedReseededEachCycle) { |
| int repeat = 2; |
| int64_t block_size = 4096; |
| int64_t size = block_size * repeat; |
| int64_t file_size = 1024 * 1024 * 1024; // 1GB |
| std::set<int64_t> blocks; |
| int number_of_blocks = repeat * repeat * repeat; |
| int number_of_unique_blocks = repeat; |
| |
| // Check that file size is requested once in each SetUpSingle() and |
| // pass needed file size for this test |
| EXPECT_CALL(syscall_, FStat(fd_, _)) |
| .Times(repeat * repeat) |
| .WillRepeatedly(Invoke([&](int, struct stat64* buf) { |
| buf->st_size = file_size; |
| return 0; |
| })); |
| |
| // Collect the blocks |
| EXPECT_CALL(syscall_, Write(fd_, _, block_size, _)) |
| .Times(number_of_blocks) |
| .WillRepeatedly(Invoke([&](int, char*, int64_t size, int64_t offset) { |
| blocks.insert(offset); |
| return size; |
| })); |
| |
| auto write_file = std::make_unique<dittosuite::WriteFile>( |
| syscall_, repeat, size, block_size, 0, dittosuite::kRandom, 0, dittosuite::kEachCycle, false, |
| input_key_); |
| std::vector<std::unique_ptr<dittosuite::Instruction>> instructions; |
| instructions.push_back(std::move(write_file)); |
| auto instruction_set = dittosuite::InstructionSet(syscall_, repeat, std::move(instructions)); |
| instruction_set.Run(); |
| |
| // Check that the number of unique blocks, that were collected, matches the expected number |
| ASSERT_EQ(static_cast<int>(blocks.size()), number_of_unique_blocks); |
| } |
| |
| TEST_F(WriteFileDeathTest, DiedDueToInvalidFd) { |
| SharedVariables::Set(input_key_, -1); |
| auto instruction = |
| dittosuite::WriteFile(syscall_, 1, -1, MockSyscall::kDefaultFileSize, 0, dittosuite::kRandom, |
| 0, dittosuite::kOnce, false, input_key_); |
| |
| // Will fail when GetFileSize() is called for an invalid fd during setup |
| EXPECT_CALL(syscall_, FStat(-1, _)).WillRepeatedly(Return(-1)); |
| EXPECT_DEATH(instruction.Run(), _); |
| } |