739351d476
Change log:95336cb92b..191d55580eFull diff:95336cb92b..191d55580eRoll chromium third_party 4e16929f46..3a8f2a9e1e Change log:4e16929f46..3a8f2a9e1eChanged dependencies: * src/tools:c44a3f5eca..f524a53b81DEPS diff:95336cb92b..191d55580e/DEPS No update to Clang. TBR=titovartem@google.com, BUG=None CQ_INCLUDE_TRYBOTS=master.internal.tryserver.corp.webrtc:linux_internal Change-Id: Ic9c4a62b050383646e9fcf5cc07a5653c14ac06e Reviewed-on: https://webrtc-review.googlesource.com/76120 Reviewed-by: Patrik Höglund <phoglund@webrtc.org> Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Reviewed-by: Artem Titov <titovartem@webrtc.org> Commit-Queue: Artem Titov <titovartem@webrtc.org> Cr-Commit-Position: refs/heads/master@{#23205}
92 lines
3.0 KiB
C++
92 lines
3.0 KiB
C++
// Copyright 2014 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "third_party/zlib/google/compression_utils.h"
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#include <stddef.h>
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#include <stdint.h>
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#include <string>
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#include "base/logging.h"
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#include "base/macros.h"
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#include "testing/gtest/include/gtest/gtest.h"
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namespace compression {
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namespace {
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// The data to be compressed by gzip. This is the hex representation of "hello
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// world".
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const uint8_t kData[] = {0x68, 0x65, 0x6c, 0x6c, 0x6f, 0x20,
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0x77, 0x6f, 0x72, 0x6c, 0x64};
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// This is the string representation of gzip compressed string above. It was
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// obtained by running echo -n "hello world" | gzip -c | hexdump -e '8 1 ",
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// 0x%x"' followed by 0'ing out the OS byte (10th byte) in the header. This is
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// so that the test passes on all platforms (that run various OS'es).
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const uint8_t kCompressedData[] = {
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0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xcb,
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0x48, 0xcd, 0xc9, 0xc9, 0x57, 0x28, 0xcf, 0x2f, 0xca, 0x49, 0x01,
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0x00, 0x85, 0x11, 0x4a, 0x0d, 0x0b, 0x00, 0x00, 0x00};
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} // namespace
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TEST(CompressionUtilsTest, GzipCompression) {
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std::string data(reinterpret_cast<const char*>(kData), arraysize(kData));
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std::string compressed_data;
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EXPECT_TRUE(GzipCompress(data, &compressed_data));
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std::string golden_compressed_data(
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reinterpret_cast<const char*>(kCompressedData),
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arraysize(kCompressedData));
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EXPECT_EQ(golden_compressed_data, compressed_data);
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}
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TEST(CompressionUtilsTest, GzipUncompression) {
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std::string compressed_data(reinterpret_cast<const char*>(kCompressedData),
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arraysize(kCompressedData));
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std::string uncompressed_data;
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EXPECT_TRUE(GzipUncompress(compressed_data, &uncompressed_data));
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std::string golden_data(reinterpret_cast<const char*>(kData),
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arraysize(kData));
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EXPECT_EQ(golden_data, uncompressed_data);
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}
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// Checks that compressing/decompressing input > 256 bytes works as expected.
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TEST(CompressionUtilsTest, LargeInput) {
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const size_t kSize = 32 * 1024;
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// Generate a data string of |kSize| for testing.
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std::string data;
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data.resize(kSize);
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for (size_t i = 0; i < kSize; ++i)
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data[i] = static_cast<char>(i & 0xFF);
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std::string compressed_data;
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EXPECT_TRUE(GzipCompress(data, &compressed_data));
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std::string uncompressed_data;
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EXPECT_TRUE(GzipUncompress(compressed_data, &uncompressed_data));
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EXPECT_EQ(data, uncompressed_data);
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}
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TEST(CompressionUtilsTest, InPlace) {
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const std::string original_data(reinterpret_cast<const char*>(kData),
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arraysize(kData));
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const std::string golden_compressed_data(
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reinterpret_cast<const char*>(kCompressedData),
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arraysize(kCompressedData));
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std::string data(original_data);
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EXPECT_TRUE(GzipCompress(data, &data));
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EXPECT_EQ(golden_compressed_data, data);
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EXPECT_TRUE(GzipUncompress(data, &data));
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EXPECT_EQ(original_data, data);
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}
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} // namespace compression
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