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f4ccd11075
This compiles with no changes to clang/lld/lldb with MSVC and includes overloads to various functions which are used by those projects and llvm which have OwningPtr's as parameters. This should allow out of tree projects some time to move. There are also no changes to libs/Target, which should help out of tree targets have time to move, if necessary. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203083 91177308-0d34-0410-b5e6-96231b3b80d8
74 lines
2.5 KiB
C++
74 lines
2.5 KiB
C++
//===- llvm/unittest/Support/CompressionTest.cpp - Compression tests ------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements unit tests for the Compression functions.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/Compression.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Config/config.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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namespace {
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#if LLVM_ENABLE_ZLIB == 1 && HAVE_LIBZ
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void TestZlibCompression(StringRef Input, zlib::CompressionLevel Level) {
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std::unique_ptr<MemoryBuffer> Compressed;
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std::unique_ptr<MemoryBuffer> Uncompressed;
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EXPECT_EQ(zlib::StatusOK, zlib::compress(Input, Compressed, Level));
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// Check that uncompressed buffer is the same as original.
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EXPECT_EQ(zlib::StatusOK, zlib::uncompress(Compressed->getBuffer(),
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Uncompressed, Input.size()));
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EXPECT_EQ(Input.size(), Uncompressed->getBufferSize());
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EXPECT_EQ(0,
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memcmp(Input.data(), Uncompressed->getBufferStart(), Input.size()));
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if (Input.size() > 0) {
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// Uncompression fails if expected length is too short.
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EXPECT_EQ(zlib::StatusBufferTooShort,
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zlib::uncompress(Compressed->getBuffer(), Uncompressed,
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Input.size() - 1));
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}
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}
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TEST(CompressionTest, Zlib) {
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TestZlibCompression("", zlib::DefaultCompression);
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TestZlibCompression("hello, world!", zlib::NoCompression);
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TestZlibCompression("hello, world!", zlib::BestSizeCompression);
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TestZlibCompression("hello, world!", zlib::BestSpeedCompression);
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TestZlibCompression("hello, world!", zlib::DefaultCompression);
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const size_t kSize = 1024;
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char BinaryData[kSize];
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for (size_t i = 0; i < kSize; ++i) {
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BinaryData[i] = i & 255;
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}
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StringRef BinaryDataStr(BinaryData, kSize);
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TestZlibCompression(BinaryDataStr, zlib::NoCompression);
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TestZlibCompression(BinaryDataStr, zlib::BestSizeCompression);
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TestZlibCompression(BinaryDataStr, zlib::BestSpeedCompression);
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TestZlibCompression(BinaryDataStr, zlib::DefaultCompression);
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}
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TEST(CompressionTest, ZlibCRC32) {
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EXPECT_EQ(
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0x414FA339U,
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zlib::crc32(StringRef("The quick brown fox jumps over the lazy dog")));
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}
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#endif
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}
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