2020-08-01 23:01:39 +03:00
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/*
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* Copyright (c) 2020, the SerenityOS developers.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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2020-08-20 19:17:19 +03:00
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#include <AK/TestSuite.h>
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2020-08-01 23:01:39 +03:00
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#include <LibCompress/Deflate.h>
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#include <LibCompress/Zlib.h>
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2020-08-20 19:17:19 +03:00
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bool compare(ReadonlyBytes lhs, ReadonlyBytes rhs)
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2020-08-01 23:01:39 +03:00
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{
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2020-08-20 19:17:19 +03:00
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if (lhs.size() != rhs.size())
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return false;
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2020-08-01 23:01:39 +03:00
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2020-08-20 19:17:19 +03:00
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for (size_t idx = 0; idx < lhs.size(); ++idx) {
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if (lhs[idx] != rhs[idx])
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return false;
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2020-08-01 23:01:39 +03:00
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}
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2020-08-20 19:17:19 +03:00
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return true;
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}
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2020-08-01 23:01:39 +03:00
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2020-08-20 19:17:19 +03:00
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TEST_CASE(deflate_decompress_compressed_block)
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{
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const u8 compressed[] = {
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0x0B, 0xC9, 0xC8, 0x2C, 0x56, 0x00, 0xA2, 0x44, 0x85, 0xE2, 0xCC, 0xDC,
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0x82, 0x9C, 0x54, 0x85, 0x92, 0xD4, 0x8A, 0x12, 0x85, 0xB4, 0x4C, 0x20,
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0xCB, 0x4A, 0x13, 0x00
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};
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2020-08-01 23:01:39 +03:00
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2020-08-20 19:17:19 +03:00
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const u8 uncompressed[] = "This is a simple text file :)";
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2020-08-01 23:01:39 +03:00
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2020-08-20 19:17:19 +03:00
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const auto decompressed = Compress::DeflateStream::decompress_all({ compressed, sizeof(compressed) });
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EXPECT(compare({ uncompressed, sizeof(uncompressed) - 1 }, decompressed.span()));
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}
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2020-08-01 23:01:39 +03:00
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2020-08-20 19:17:19 +03:00
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TEST_CASE(zlib_simple_decompress)
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{
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const u8 compressed[] = {
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0x78, 0x01, 0x01, 0x1D, 0x00, 0xE2, 0xFF, 0x54, 0x68, 0x69, 0x73, 0x20,
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0x69, 0x73, 0x20, 0x61, 0x20, 0x73, 0x69, 0x6D, 0x70, 0x6C, 0x65, 0x20,
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0x74, 0x65, 0x78, 0x74, 0x20, 0x66, 0x69, 0x6C, 0x65, 0x20, 0x3A, 0x29,
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0x99, 0x5E, 0x09, 0xE8
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};
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2020-08-01 23:01:39 +03:00
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2020-08-20 19:17:19 +03:00
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const u8 uncompressed[] = "This is a simple text file :)";
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2020-08-01 23:01:39 +03:00
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2020-08-20 19:17:19 +03:00
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const auto decompressed = Compress::Zlib { { compressed, sizeof(compressed) } }.decompress();
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EXPECT(compare({ uncompressed, sizeof(uncompressed) - 1 }, decompressed.span()));
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2020-08-01 23:01:39 +03:00
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}
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2020-08-20 19:17:19 +03:00
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TEST_MAIN(Compress)
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