ladybird/Tests/LibCompress/TestZlib.cpp
Tim Schumacher 23a9d62f39 LibCompress: Rename Compress::Zlib to Compress::ZlibDecompressor
Because that's what it is, even if it mainly relies on
`DeflateDecompressor` to do the heavy lifting.
2023-01-03 10:01:09 +00:00

44 lines
1.6 KiB
C++

/*
* Copyright (c) 2020-2021, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibTest/TestCase.h>
#include <AK/Array.h>
#include <LibCompress/Zlib.h>
TEST_CASE(zlib_decompress_simple)
{
Array<u8, 40> const compressed {
0x78, 0x01, 0x01, 0x1D, 0x00, 0xE2, 0xFF, 0x54, 0x68, 0x69, 0x73, 0x20,
0x69, 0x73, 0x20, 0x61, 0x20, 0x73, 0x69, 0x6D, 0x70, 0x6C, 0x65, 0x20,
0x74, 0x65, 0x78, 0x74, 0x20, 0x66, 0x69, 0x6C, 0x65, 0x20, 0x3A, 0x29,
0x99, 0x5E, 0x09, 0xE8
};
const u8 uncompressed[] = "This is a simple text file :)";
auto const decompressed = Compress::ZlibDecompressor::decompress_all(compressed);
EXPECT(decompressed.value().bytes() == (ReadonlyBytes { uncompressed, sizeof(uncompressed) - 1 }));
}
TEST_CASE(zlib_compress_simple)
{
// Note: This is just the output of our compression function from an arbitrary point in time.
// This test is intended to ensure that the decompression doesn't change unintentionally,
// it does not make any guarantees for correctness.
Array<u8, 37> const compressed {
0x78, 0x9C, 0x0B, 0xC9, 0xC8, 0x2C, 0x56, 0xC8, 0x2C, 0x56, 0x48, 0x54,
0x28, 0xCE, 0xCC, 0x2D, 0xC8, 0x49, 0x55, 0x28, 0x49, 0xAD, 0x28, 0x51,
0x48, 0xCB, 0xCC, 0x49, 0x55, 0xB0, 0xD2, 0x04, 0x00, 0x99, 0x5E, 0x09,
0xE8
};
const u8 uncompressed[] = "This is a simple text file :)";
auto const freshly_pressed = Compress::ZlibCompressor::compress_all({ uncompressed, sizeof(uncompressed) - 1 });
EXPECT(freshly_pressed.value().bytes() == compressed.span());
}