1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include <string>
6
7 #include "base/base_paths.h"
8 #include "base/basictypes.h"
9 #include "base/file_util.h"
10 #include "base/path_service.h"
11 #include "chrome/browser/metrics/compression_utils.h"
12 #include "chrome/common/chrome_paths.h"
13 #include "testing/gtest/include/gtest/gtest.h"
14
15 namespace {
16
17 // The data to be compressed by gzip. This is the hex representation of "hello
18 // world".
19 const uint8 kData[] =
20 {0x68, 0x65, 0x6c, 0x6c, 0x6f, 0x20, 0x77, 0x6f,
21 0x72, 0x6c, 0x64};
22
23 // This is the string representation of gzip compressed string above. It was
24 // obtained by running echo -n "hello world" | gzip -c | hexdump -e '8 1 ",
25 // 0x%x"' followed by 0'ing out the OS byte (10th byte) in the header. This is
26 // so that the test passes on all platforms (that run various OS'es).
27 const uint8 kCompressedData[] =
28 {0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
29 0x00, 0xcb, 0x48, 0xcd, 0xc9, 0xc9, 0x57, 0x28, 0xcf,
30 0x2f, 0xca, 0x49, 0x01, 0x00, 0x85, 0x11, 0x4a, 0x0d,
31 0x0b, 0x00, 0x00, 0x00};
32
33 // Re-enable C4309.
34 #if defined(OS_WIN)
35 #pragma warning( default: 4309 )
36 #endif
37
TEST(CompressionUtilsTest,GzipCompression)38 TEST(CompressionUtilsTest, GzipCompression) {
39 std::string data(reinterpret_cast<const char*>(kData), arraysize(kData));
40 std::string compressed_data;
41 EXPECT_TRUE(chrome::GzipCompress(data, &compressed_data));
42 std::string golden_compressed_data(
43 reinterpret_cast<const char*>(kCompressedData),
44 arraysize(kCompressedData));
45 EXPECT_EQ(golden_compressed_data, compressed_data);
46 }
47
48 } // namespace
49