crashpad/util/stream/file_encoder_test.cc
Mark Mentovai 6278690abe Update copyright boilerplate, 2022 edition (Crashpad)
sed -i '' -E -e 's/Copyright (.+) The Crashpad Authors\. All rights reserved\.$/Copyright \1 The Crashpad Authors/' $(git grep -El 'Copyright (.+) The Crashpad Authors\. All rights reserved\.$')

Bug: chromium:1098010
Change-Id: I8d6138469ddbe3d281a5d83f64cf918ec2491611
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3878262
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
2022-09-06 23:54:07 +00:00

112 lines
3.4 KiB
C++

// Copyright 2019 The Crashpad Authors
//
// 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 "util/stream/file_encoder.h"
#include <algorithm>
#include <memory>
#include <string>
#include "base/files/file_path.h"
#include "gtest/gtest.h"
#include "test/scoped_temp_dir.h"
#include "util/file/file_io.h"
#include "util/stream/file_output_stream.h"
namespace crashpad {
namespace test {
namespace {
constexpr size_t kBufferSize = 4096;
class FileEncoderTest : public testing::Test {
public:
FileEncoderTest() {}
void Verify(size_t size) {
std::string contents;
ASSERT_TRUE(LoggingReadEntireFile(decoded_, &contents));
ASSERT_EQ(contents.size(), size);
EXPECT_EQ(memcmp(deterministic_input_.get(), contents.data(), size), 0);
}
const uint8_t* BuildDeterministicInput(size_t size) {
deterministic_input_ = std::make_unique<uint8_t[]>(size);
uint8_t* deterministic_input_base = deterministic_input_.get();
while (size-- > 0)
deterministic_input_base[size] = static_cast<uint8_t>(size);
return deterministic_input_base;
}
void GenerateOrigFile(size_t size) {
ScopedFileHandle write_handle(OpenFileForWrite(
orig_, FileWriteMode::kCreateOrFail, FilePermissions::kOwnerOnly));
ASSERT_TRUE(write_handle.is_valid());
FileOutputStream out(write_handle.get());
const uint8_t* buf = BuildDeterministicInput(size);
while (size > 0) {
size_t m = std::min(kBufferSize, size);
ASSERT_TRUE(out.Write(buf, m));
size -= m;
buf += m;
}
ASSERT_TRUE(out.Flush());
}
FileEncoder* encoder() const { return encoder_.get(); }
FileEncoder* decoder() const { return decoder_.get(); }
protected:
void SetUp() override {
temp_dir_ = std::make_unique<ScopedTempDir>();
orig_ = base::FilePath(temp_dir_->path().Append(FILE_PATH_LITERAL("orig")));
encoded_ =
base::FilePath(temp_dir_->path().Append(FILE_PATH_LITERAL("encoded")));
decoded_ =
base::FilePath(temp_dir_->path().Append(FILE_PATH_LITERAL("decoded")));
encoder_ = std::make_unique<FileEncoder>(
FileEncoder::Mode::kEncode, orig_, encoded_);
decoder_ = std::make_unique<FileEncoder>(
FileEncoder::Mode::kDecode, encoded_, decoded_);
}
private:
std::unique_ptr<ScopedTempDir> temp_dir_;
base::FilePath orig_;
base::FilePath encoded_;
base::FilePath decoded_;
std::unique_ptr<FileEncoder> encoder_;
std::unique_ptr<FileEncoder> decoder_;
std::unique_ptr<uint8_t[]> deterministic_input_;
};
TEST_F(FileEncoderTest, ProcessShortFile) {
GenerateOrigFile(kBufferSize - 512);
EXPECT_TRUE(encoder()->Process());
EXPECT_TRUE(decoder()->Process());
Verify(kBufferSize - 512);
}
TEST_F(FileEncoderTest, ProcessLongFile) {
GenerateOrigFile(kBufferSize + 512);
EXPECT_TRUE(encoder()->Process());
EXPECT_TRUE(decoder()->Process());
Verify(kBufferSize + 512);
}
} // namespace
} // namespace test
} // namespace crashpad