1 // Copyright (c) 2006-2008 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 #if defined(USE_SYSTEM_LIBBZ2) 6 #include <bzlib.h> 7 #else 8 #include "third_party/bzip2/bzlib.h" 9 #endif 10 11 #include "base/basictypes.h" 12 #include "testing/gtest/include/gtest/gtest.h" 13 14 namespace { 15 class Bzip2Test : public testing::Test { 16 }; 17 }; 18 19 // This test does a simple round trip to test that the bzip2 library is 20 // present and working. 21 TEST(Bzip2Test, Roundtrip) { 22 char input[] = "Test Data, More Test Data, Even More Data of Test"; 23 char output[256]; 24 25 memset(output, 0, arraysize(output)); 26 27 bz_stream stream; 28 stream.bzalloc = NULL; 29 stream.bzfree = NULL; 30 stream.opaque = NULL; 31 int result = BZ2_bzCompressInit(&stream, 32 9, // 900k block size 33 0, // quiet 34 0); // default work factor 35 ASSERT_EQ(BZ_OK, result); 36 37 stream.next_in = input; 38 stream.avail_in = arraysize(input) - 1; 39 stream.next_out = output; 40 stream.avail_out = arraysize(output); 41 do { 42 result = BZ2_bzCompress(&stream, BZ_FINISH); 43 } while (result == BZ_FINISH_OK); 44 ASSERT_EQ(BZ_STREAM_END, result); 45 result = BZ2_bzCompressEnd(&stream); 46 ASSERT_EQ(BZ_OK, result); 47 int written = stream.total_out_lo32; 48 49 // Make sure we wrote something; otherwise not sure what to expect 50 ASSERT_GT(written, 0); 51 52 // Now decompress and check that we got the same thing. 53 result = BZ2_bzDecompressInit(&stream, 0, 0); 54 ASSERT_EQ(BZ_OK, result); 55 char output2[256]; 56 memset(output2, 0, arraysize(output2)); 57 58 stream.next_in = output; 59 stream.avail_in = written; 60 stream.next_out = output2; 61 stream.avail_out = arraysize(output2); 62 63 do { 64 result = BZ2_bzDecompress(&stream); 65 } while (result == BZ_OK); 66 ASSERT_EQ(result, BZ_STREAM_END); 67 result = BZ2_bzDecompressEnd(&stream); 68 ASSERT_EQ(result, BZ_OK); 69 70 EXPECT_EQ(arraysize(input) - 1, stream.total_out_lo32); 71 EXPECT_STREQ(input, output2); 72 } 73
