Alex Deymo | 64d5cd8 | 2018-03-12 20:00:04 +0100 | [diff] [blame] | 1 | // Copyright 2018 The Chromium OS 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 "bsdiff/bz2_decompressor.h" |
| 6 | |
| 7 | #include <memory> |
| 8 | |
| 9 | #include <gtest/gtest.h> |
| 10 | |
| 11 | namespace { |
| 12 | |
| 13 | // echo -n "Hello!" | bzip2 -9 | hexdump -v -e '" " 11/1 "0x%02x, " "\n"' |
| 14 | constexpr uint8_t kBZ2Hello[] = { |
| 15 | 0x42, 0x5a, 0x68, 0x39, 0x31, 0x41, 0x59, 0x26, 0x53, 0x59, 0x1a, |
| 16 | 0xea, 0x74, 0xba, 0x00, 0x00, 0x00, 0x95, 0x00, 0x20, 0x00, 0x00, |
| 17 | 0x40, 0x02, 0x04, 0xa0, 0x00, 0x21, 0x83, 0x41, 0x9a, 0x02, 0x5c, |
| 18 | 0x2e, 0x2e, 0xe4, 0x8a, 0x70, 0xa1, 0x20, 0x35, 0xd4, 0xe9, 0x74, |
| 19 | }; |
| 20 | |
| 21 | } // namespace |
| 22 | |
| 23 | namespace bsdiff { |
| 24 | |
| 25 | class BZ2DecompressorTest : public testing::Test { |
| 26 | protected: |
| 27 | void SetUp() { |
| 28 | decompressor_.reset(new BZ2Decompressor()); |
| 29 | EXPECT_NE(nullptr, decompressor_.get()); |
| 30 | } |
| 31 | |
| 32 | std::unique_ptr<BZ2Decompressor> decompressor_; |
| 33 | }; |
| 34 | |
| 35 | TEST_F(BZ2DecompressorTest, ReadingFromEmptyFileTest) { |
| 36 | uint8_t data = 0; |
| 37 | EXPECT_TRUE(decompressor_->SetInputData(&data, 0)); |
| 38 | |
| 39 | uint8_t output_data[10]; |
| 40 | EXPECT_FALSE(decompressor_->Read(output_data, sizeof(output_data))); |
| 41 | } |
| 42 | |
| 43 | // Check that we fail to read from a truncated file. |
| 44 | TEST_F(BZ2DecompressorTest, ReadingFromTruncatedFileTest) { |
| 45 | // We feed only half of the compressed file. |
| 46 | EXPECT_TRUE(decompressor_->SetInputData(kBZ2Hello, sizeof(kBZ2Hello) / 2)); |
| 47 | uint8_t output_data[6]; |
| 48 | EXPECT_FALSE(decompressor_->Read(output_data, sizeof(output_data))); |
| 49 | } |
| 50 | |
| 51 | // Check that we fail to read more than it is available in the file. |
| 52 | TEST_F(BZ2DecompressorTest, ReadingMoreThanAvailableTest) { |
| 53 | EXPECT_TRUE(decompressor_->SetInputData(kBZ2Hello, sizeof(kBZ2Hello))); |
| 54 | uint8_t output_data[1000]; |
| 55 | EXPECT_FALSE(decompressor_->Read(output_data, sizeof(output_data))); |
| 56 | } |
| 57 | |
| 58 | } // namespace bsdiff |