| 41 | using namespace pdal; |
| 42 | |
| 43 | TEST(Compression, deflate) |
| 44 | { |
| 45 | std::default_random_engine generator; |
| 46 | std::uniform_int_distribution<int> dist((std::numeric_limits<int>::min)()); |
| 47 | |
| 48 | // Choosing a size that isn't a multiple of the internal buffer. |
| 49 | std::vector<int> orig(1000357); |
| 50 | // Trying to make something that compresses reasonably well. |
| 51 | int val = dist(generator); |
| 52 | for (size_t i = 0; i < orig.size(); ++i) |
| 53 | { |
| 54 | orig[i] = val++; |
| 55 | if (i % 100 == 0) |
| 56 | val = dist(generator); |
| 57 | } |
| 58 | |
| 59 | std::vector<char> compressed; |
| 60 | auto cb = [&compressed](char *buf, size_t bufsize) |
| 61 | { |
| 62 | compressed.insert(compressed.end(), buf, buf + bufsize); |
| 63 | }; |
| 64 | |
| 65 | DeflateCompressor compressor(cb); |
| 66 | |
| 67 | size_t s = orig.size() * sizeof(int); |
| 68 | char *sp = reinterpret_cast<char *>(orig.data()); |
| 69 | compressor.compress(sp, s); |
| 70 | compressor.done(); |
| 71 | |
| 72 | auto verifier = [&sp](char *buf, size_t bufsize) |
| 73 | { |
| 74 | EXPECT_EQ(memcmp(buf, sp, bufsize), 0); |
| 75 | sp += bufsize; |
| 76 | }; |
| 77 | |
| 78 | DeflateDecompressor decompressor(verifier); |
| 79 | decompressor.decompress(compressed.data(), compressed.size()); |
| 80 | decompressor.done(); |
| 81 | } |
| 82 | |