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LibCompress: Implement gzip.

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asynts 2020-08-28 17:53:57 +02:00 • committed by Andreas Kling
parent 9664453739
commit 3f1dfc2e97
4 changed files with 314 additions and 1 deletions
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34
Userland/test-compress.cpp
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@ -27,6 +27,7 @@
#include <AK/TestSuite.h>
#include <LibCompress/Deflate.h>
#include <LibCompress/Gzip.h>
#include <LibCompress/Zlib.h>
static bool compare(ReadonlyBytes lhs, ReadonlyBytes rhs)
@ -119,4 +120,37 @@ TEST_CASE(zlib_decompress_simple)
EXPECT(compare({ uncompressed, sizeof(uncompressed) - 1 }, decompressed.bytes()));
}
TEST_CASE(gzip_decompress_simple)
{
const u8 compressed[] = {
0x1f, 0x8b, 0x08, 0x00, 0x77, 0xff, 0x47, 0x5f, 0x02, 0xff, 0x2b, 0xcf,
0x2f, 0x4a, 0x31, 0x54, 0x48, 0x4c, 0x4a, 0x56, 0x28, 0x07, 0xb2, 0x8c,
0x00, 0xc2, 0x1d, 0x22, 0x15, 0x0f, 0x00, 0x00, 0x00
};
const u8 uncompressed[] = "word1 abc word2";
const auto decompressed = Compress::GzipDecompressor::decompress_all({ compressed, sizeof(compressed) });
EXPECT(compare({ uncompressed, sizeof(uncompressed) - 1 }, decompressed.bytes()));
}
TEST_CASE(gzip_multiple_members)
{
const u8 compressed[] = {
0x1f, 0x8b, 0x08, 0x00, 0xe0, 0x03, 0x48, 0x5f, 0x02, 0xff, 0x4b, 0x4c,
0x4a, 0x4e, 0x4c, 0x4a, 0x06, 0x00, 0x4c, 0x99, 0x6e, 0x72, 0x06, 0x00,
0x00, 0x00, 0x1f, 0x8b, 0x08, 0x00, 0xe0, 0x03, 0x48, 0x5f, 0x02, 0xff,
0x4b, 0x4c, 0x4a, 0x4e, 0x4c, 0x4a, 0x06, 0x00, 0x4c, 0x99, 0x6e, 0x72,
0x06, 0x00, 0x00, 0x00
};
const u8 uncompressed[] = "abcabcabcabc";
const auto decompressed = Compress::GzipDecompressor::decompress_all({ compressed, sizeof(compressed) });
EXPECT(compare({ uncompressed, sizeof(uncompressed) - 1 }, decompressed.bytes()));
}
TEST_MAIN(Compress)