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TESTS: Add unit tests for our Nintendo DS SMALL (de)compressors
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| Original file line number | Diff line number | Diff line change |
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| /* xoreos - A reimplementation of BioWare's Aurora engine | ||
| * | ||
| * xoreos is the legal property of its developers, whose names | ||
| * can be found in the AUTHORS file distributed with this source | ||
| * distribution. | ||
| * | ||
| * xoreos is free software; you can redistribute it and/or | ||
| * modify it under the terms of the GNU General Public License | ||
| * as published by the Free Software Foundation; either version 3 | ||
| * of the License, or (at your option) any later version. | ||
| * | ||
| * xoreos is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with xoreos. If not, see <http://www.gnu.org/licenses/>. | ||
| */ | ||
|
|
||
| /** @file | ||
| * Unit tests for our Nintendo DS compression. | ||
| */ | ||
|
|
||
| #include "gtest/gtest.h" | ||
|
|
||
| #include "src/common/memreadstream.h" | ||
| #include "src/common/memwritestream.h" | ||
|
|
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| #include "src/aurora/smallfile.h" | ||
|
|
||
| // Percy Bysshe Shelley's "Ozymandias" | ||
| static const byte kDataUncompressed[] = | ||
| "I met a traveller from an antique land\n" | ||
| "Who said: Two vast and trunkless legs of stone\n" | ||
| "Stand in the desert. Near them, on the sand,\n" | ||
| "Half sunk, a shattered visage lies, whose frown,\n" | ||
| "And wrinkled lip, and sneer of cold command,\n" | ||
| "Tell that its sculptor well those passions read\n" | ||
| "Which yet survive, stamped on these lifeless things,\n" | ||
| "The hand that mocked them and the heart that fed:\n" | ||
| "And on the pedestal these words appear:\n" | ||
| "\'My name is Ozymandias, king of kings:\n" | ||
| "Look on my works, ye Mighty, and despair!\'\n" | ||
| "Nothing beside remains. Round the decay\n" | ||
| "Of that colossal wreck, boundless and bare\n" | ||
| "The lone and level sands stretch far away."; | ||
|
|
||
| // Percy Bysshe Shelley's "Ozymandias", "compressed" using the 0x00 mode | ||
| static const byte kDataCompressed00[] = | ||
| "\x00""\x6F""\x02""\00" | ||
| "I met a traveller from an antique land\n" | ||
| "Who said: Two vast and trunkless legs of stone\n" | ||
| "Stand in the desert. Near them, on the sand,\n" | ||
| "Half sunk, a shattered visage lies, whose frown,\n" | ||
| "And wrinkled lip, and sneer of cold command,\n" | ||
| "Tell that its sculptor well those passions read\n" | ||
| "Which yet survive, stamped on these lifeless things,\n" | ||
| "The hand that mocked them and the heart that fed:\n" | ||
| "And on the pedestal these words appear:\n" | ||
| "\'My name is Ozymandias, king of kings:\n" | ||
| "Look on my works, ye Mighty, and despair!\'\n" | ||
| "Nothing beside remains. Round the decay\n" | ||
| "Of that colossal wreck, boundless and bare\n" | ||
| "The lone and level sands stretch far away."; | ||
|
|
||
| // Percy Bysshe Shelley's "Ozymandias", compressed using the LZSS 0x10 mode | ||
| static const byte kDataCompressed10[] = { | ||
| 0x10,0x6F,0x02,0x00,0x00,0x49,0x20,0x6D,0x65,0x74,0x20,0x61,0x20,0x00,0x74,0x72, | ||
| 0x61,0x76,0x65,0x6C,0x6C,0x65,0x00,0x72,0x20,0x66,0x72,0x6F,0x6D,0x20,0x61,0x40, | ||
| 0x6E,0x00,0x02,0x74,0x69,0x71,0x75,0x65,0x20,0x00,0x6C,0x61,0x6E,0x64,0x0A,0x57, | ||
| 0x68,0x6F,0x00,0x20,0x73,0x61,0x69,0x64,0x3A,0x20,0x54,0x02,0x77,0x6F,0x20,0x76, | ||
| 0x61,0x73,0x00,0x33,0x6E,0x40,0x64,0x00,0x35,0x75,0x6E,0x6B,0x6C,0x65,0x73,0x00, | ||
| 0x73,0x20,0x6C,0x65,0x67,0x73,0x20,0x6F,0x00,0x66,0x20,0x73,0x74,0x6F,0x6E,0x65, | ||
| 0x0A,0x20,0x53,0x74,0x10,0x1D,0x69,0x6E,0x20,0x74,0x68,0x00,0x65,0x20,0x64,0x65, | ||
| 0x73,0x65,0x72,0x74,0x02,0x2E,0x20,0x4E,0x65,0x61,0x72,0x10,0x10,0x6D,0x14,0x2C, | ||
| 0x20,0x6F,0x30,0x19,0x73,0x00,0x5A,0x2C,0x0A,0x1A,0x48,0x61,0x6C,0x00,0x37,0x00, | ||
| 0x48,0x2C,0x00,0x87,0x73,0x00,0x68,0x61,0x74,0x74,0x65,0x72,0x65,0x64,0x02,0x20, | ||
| 0x76,0x69,0x73,0x61,0x67,0x00,0x7E,0x69,0x00,0x65,0x73,0x2C,0x20,0x77,0x68,0x6F, | ||
| 0x73,0x41,0x65,0x10,0x9A,0x77,0x6E,0x2C,0x0A,0x41,0x00,0x79,0x15,0x77,0x72,0x69, | ||
| 0x10,0x79,0x64,0x00,0x1F,0x70,0x00,0x37,0x8C,0x00,0x8B,0x73,0x6E,0x65,0x00,0xBD, | ||
| 0x00,0x82,0x63,0x6F,0x25,0x6C,0x64,0x00,0x04,0x6D,0x6D,0x20,0x5D,0x54,0x00,0xD5, | ||
| 0x80,0x00,0x86,0x61,0x74,0x20,0x69,0x74,0x73,0x20,0x00,0x73,0x63,0x75,0x6C,0x70, | ||
| 0x74,0x6F,0x72,0x30,0x20,0x77,0x30,0x16,0x10,0x55,0x70,0x61,0x73,0x73,0x00,0x69, | ||
| 0x6F,0x6E,0x73,0x20,0x72,0x65,0x61,0x82,0x10,0xE9,0x69,0x63,0x68,0x20,0x79,0x01, | ||
| 0x14,0x73,0x01,0x75,0x72,0x76,0x69,0x76,0x65,0x2C,0x00,0xD3,0x1C,0x61,0x6D,0x70, | ||
| 0x00,0x91,0x30,0xB5,0x00,0x87,0x6C,0x69,0x20,0x66,0x65,0x20,0xF5,0x74,0x68,0x69, | ||
| 0x6E,0x67,0x6C,0x73,0x00,0x64,0x00,0xE6,0x68,0x21,0x10,0x10,0x68,0x6D,0x6F,0x3E, | ||
| 0x63,0x6B,0x00,0xC0,0x10,0xEA,0x31,0x25,0x10,0x1D,0x00,0xFC,0x74,0x87,0x30,0x87, | ||
| 0x66,0x65,0x64,0x3A,0x20,0xC3,0x41,0x05,0x00,0x5A,0x70,0x65,0x00,0x62,0x10,0xA5, | ||
| 0x10,0x5C,0x77,0x6F,0x72,0x64,0x04,0x73,0x20,0x61,0x70,0x70,0x01,0x2E,0x3A,0x0A, | ||
| 0x00,0x27,0x4D,0x79,0x20,0x6E,0x61,0x6D,0x65,0x01,0x20,0x69,0x73,0x20,0x4F,0x7A, | ||
| 0x79,0x10,0xD3,0x2E,0x69,0x61,0x01,0x10,0x6B,0x00,0x78,0x11,0x6F,0x10,0x07,0x73, | ||
| 0x02,0x3A,0x0A,0x4C,0x6F,0x6F,0x6B,0x11,0x55,0x6D,0x50,0x79,0x10,0x3F,0x6B,0x01, | ||
| 0x31,0x79,0x65,0x20,0x4D,0x06,0x69,0x67,0x68,0x74,0x79,0x31,0x1D,0x01,0x84,0x70, | ||
| 0x00,0x61,0x69,0x72,0x21,0x27,0x0A,0x4E,0x6F,0x80,0x20,0xB5,0x20,0x62,0x65,0x73, | ||
| 0x69,0x64,0x65,0x80,0x00,0xF4,0x6D,0x61,0x69,0x6E,0x73,0x2E,0x20,0x10,0x52,0x6F, | ||
| 0x75,0x40,0xAB,0x64,0x65,0x63,0x61,0x0C,0x79,0x0A,0x4F,0x66,0x31,0x36,0x01,0x4E, | ||
| 0x6F,0x73,0x42,0x73,0x00,0x9E,0x77,0x72,0x65,0x63,0x01,0xA3,0x62,0xE1,0x10,0x27, | ||
| 0x21,0xF3,0x12,0x01,0x62,0x61,0x72,0x65,0x20,0xFE,0x67,0x6C,0x01,0xF7,0x22,0x13, | ||
| 0x6C,0x65,0x02,0x48,0x21,0xDA,0x01,0x6E,0x0A,0x74,0x72,0x65,0x74,0x01,0x4E,0x66, | ||
| 0x01,0xF9,0x61,0x00,0x77,0x61,0x79,0x2E | ||
| }; | ||
|
|
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| static void compareData(Common::SeekableReadStream &data1, const byte *data2, size_t n) { | ||
| for (size_t i = 0; i < n; i++) | ||
| EXPECT_EQ(data1.readByte(), data2[i]) << "At index " << i; | ||
| } | ||
|
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| static void compareData(const byte *data1, const byte *data2, size_t n) { | ||
| for (size_t i = 0; i < n; i++) | ||
| EXPECT_EQ(data1[i], data2[i]) << "At index " << i; | ||
| } | ||
|
|
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| // --- Decompress 0x00 --- | ||
|
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| GTEST_TEST(Small0x00, decompress) { | ||
| Common::MemoryWriteStreamDynamic uncompressed(true); | ||
| Common::MemoryReadStream compressed(kDataCompressed00, sizeof(kDataCompressed00) - 1); | ||
|
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| Aurora::Small::decompress(compressed, uncompressed); | ||
| ASSERT_EQ(uncompressed.size(), sizeof(kDataUncompressed) - 1); | ||
|
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| compareData(uncompressed.getData(), kDataUncompressed, sizeof(kDataUncompressed) - 1); | ||
| } | ||
|
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| GTEST_TEST(Small0x00, decompressIntoReadStream) { | ||
| Common::MemoryReadStream compressed(kDataCompressed00, sizeof(kDataCompressed00) - 1); | ||
|
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| Common::SeekableReadStream *uncompressed = Aurora::Small::decompress(compressed); | ||
| ASSERT_EQ(uncompressed->size(), sizeof(kDataUncompressed) - 1); | ||
|
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| compareData(*uncompressed, kDataUncompressed, sizeof(kDataUncompressed) - 1); | ||
| delete uncompressed; | ||
| } | ||
|
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| GTEST_TEST(Small0x00, decompressIntoReadStreamTakeOverNoSeek) { | ||
| Common::MemoryReadStream *compressed = | ||
| new Common::MemoryReadStream(kDataCompressed00, sizeof(kDataCompressed00) - 1); | ||
|
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| Common::SeekableReadStream *uncompressed = | ||
| Aurora::Small::decompress(static_cast<Common::ReadStream *>(compressed)); | ||
| ASSERT_EQ(uncompressed->size(), sizeof(kDataUncompressed) - 1); | ||
|
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| compareData(*uncompressed, kDataUncompressed, sizeof(kDataUncompressed) - 1); | ||
| delete uncompressed; | ||
| } | ||
|
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| GTEST_TEST(Small0x00, decompressIntoReadStreamTakeOverSeek) { | ||
| Common::MemoryReadStream *compressed = | ||
| new Common::MemoryReadStream(kDataCompressed00, sizeof(kDataCompressed00) - 1); | ||
|
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| Common::SeekableReadStream *uncompressed = | ||
| Aurora::Small::decompress(static_cast<Common::SeekableReadStream *>(compressed)); | ||
| ASSERT_EQ(uncompressed->size(), sizeof(kDataUncompressed) - 1); | ||
|
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| compareData(*uncompressed, kDataUncompressed, sizeof(kDataUncompressed) - 1); | ||
| delete uncompressed; | ||
| } | ||
|
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| // --- Compress 0x00 --- | ||
|
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| GTEST_TEST(Small0x00, compress) { | ||
| Common::MemoryWriteStreamDynamic compressed(true); | ||
| Common::MemoryReadStream uncompressed(kDataUncompressed, sizeof(kDataUncompressed) - 1); | ||
|
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| Aurora::Small::compress00(uncompressed, compressed); | ||
| ASSERT_EQ(compressed.size(), sizeof(kDataCompressed00) - 1); | ||
|
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| compareData(compressed.getData(), kDataCompressed00, sizeof(kDataCompressed00) - 1); | ||
| } | ||
|
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| GTEST_TEST(Small0x00, compressRoundTrip) { | ||
| Common::MemoryWriteStreamDynamic compressedWrite(true); | ||
| Common::MemoryReadStream uncompressedRead(kDataUncompressed, sizeof(kDataUncompressed) - 1); | ||
|
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| Aurora::Small::compress00(uncompressedRead, compressedWrite); | ||
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| Common::MemoryWriteStreamDynamic uncompressedWrite(true); | ||
| Common::MemoryReadStream compressedRead(compressedWrite.getData(), compressedWrite.size()); | ||
|
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| Aurora::Small::decompress(compressedRead, uncompressedWrite); | ||
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| ASSERT_EQ(uncompressedWrite.size(), sizeof(kDataUncompressed) - 1); | ||
| compareData(uncompressedWrite.getData(), kDataUncompressed, sizeof(kDataUncompressed) - 1); | ||
| } | ||
|
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| // --- Decompress 0x10 --- | ||
|
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| GTEST_TEST(Small0x10, decompress) { | ||
| Common::MemoryWriteStreamDynamic uncompressed(true); | ||
| Common::MemoryReadStream compressed(kDataCompressed10, sizeof(kDataCompressed10)); | ||
|
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| Aurora::Small::decompress(compressed, uncompressed); | ||
| ASSERT_EQ(uncompressed.size(), sizeof(kDataUncompressed) - 1); | ||
|
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| compareData(uncompressed.getData(), kDataUncompressed, sizeof(kDataUncompressed) - 1); | ||
| } | ||
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| GTEST_TEST(Small0x10, decompressIntoReadStream) { | ||
| Common::MemoryReadStream compressed(kDataCompressed10, sizeof(kDataCompressed10)); | ||
|
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| Common::SeekableReadStream *uncompressed = Aurora::Small::decompress(compressed); | ||
| ASSERT_EQ(uncompressed->size(), sizeof(kDataUncompressed) - 1); | ||
|
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| compareData(*uncompressed, kDataUncompressed, sizeof(kDataUncompressed) - 1); | ||
| delete uncompressed; | ||
| } | ||
|
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| GTEST_TEST(Small0x10, decompressIntoReadStreamTakeOverNoSeek) { | ||
| Common::MemoryReadStream *compressed = | ||
| new Common::MemoryReadStream(kDataCompressed10, sizeof(kDataCompressed10)); | ||
|
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| Common::SeekableReadStream *uncompressed = | ||
| Aurora::Small::decompress(static_cast<Common::ReadStream *>(compressed)); | ||
| ASSERT_EQ(uncompressed->size(), sizeof(kDataUncompressed) - 1); | ||
|
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| compareData(*uncompressed, kDataUncompressed, sizeof(kDataUncompressed) - 1); | ||
| delete uncompressed; | ||
| } | ||
|
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| GTEST_TEST(Small0x10, decompressIntoReadStreamTakeOverSeek) { | ||
| Common::MemoryReadStream *compressed = | ||
| new Common::MemoryReadStream(kDataCompressed10, sizeof(kDataCompressed10)); | ||
|
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| Common::SeekableReadStream *uncompressed = | ||
| Aurora::Small::decompress(static_cast<Common::SeekableReadStream *>(compressed)); | ||
| ASSERT_EQ(uncompressed->size(), sizeof(kDataUncompressed) - 1); | ||
|
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| compareData(*uncompressed, kDataUncompressed, sizeof(kDataUncompressed) - 1); | ||
| delete uncompressed; | ||
| } | ||
|
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| // --- Compress 0x10 --- | ||
|
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| GTEST_TEST(Small0x10, compress) { | ||
| Common::MemoryWriteStreamDynamic compressed(true); | ||
| Common::MemoryReadStream uncompressed(kDataUncompressed, sizeof(kDataUncompressed) - 1); | ||
|
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| Aurora::Small::compress10(uncompressed, compressed); | ||
| ASSERT_EQ(compressed.size(), sizeof(kDataCompressed10)); | ||
|
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| compareData(compressed.getData(), kDataCompressed10, sizeof(kDataCompressed10)); | ||
| } | ||
|
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| GTEST_TEST(Small0x10, compressRoundTrip) { | ||
| Common::MemoryWriteStreamDynamic compressedWrite(true); | ||
| Common::MemoryReadStream uncompressedRead(kDataUncompressed, sizeof(kDataUncompressed) - 1); | ||
|
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| Aurora::Small::compress10(uncompressedRead, compressedWrite); | ||
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| Common::MemoryWriteStreamDynamic uncompressedWrite(true); | ||
| Common::MemoryReadStream compressedRead(compressedWrite.getData(), compressedWrite.size()); | ||
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| Aurora::Small::decompress(compressedRead, uncompressedWrite); | ||
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| ASSERT_EQ(uncompressedWrite.size(), sizeof(kDataUncompressed) - 1); | ||
| compareData(uncompressedWrite.getData(), kDataUncompressed, sizeof(kDataUncompressed) - 1); | ||
| } |