mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-12-07 03:26:53 +00:00
bbd3350377
This is the other half of r205676. llvm-svn: 205677
71 lines
2.2 KiB
C++
71 lines
2.2 KiB
C++
//===- llvm/unittest/Support/CompressionTest.cpp - Compression tests ------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file implements unit tests for the Compression functions.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/Support/Compression.h"
|
|
#include "llvm/ADT/StringRef.h"
|
|
#include "llvm/ADT/SmallString.h"
|
|
#include "llvm/Config/config.h"
|
|
#include "gtest/gtest.h"
|
|
|
|
using namespace llvm;
|
|
|
|
namespace {
|
|
|
|
#if LLVM_ENABLE_ZLIB == 1 && HAVE_LIBZ
|
|
|
|
void TestZlibCompression(StringRef Input, zlib::CompressionLevel Level) {
|
|
SmallString<32> Compressed;
|
|
SmallString<32> Uncompressed;
|
|
EXPECT_EQ(zlib::StatusOK, zlib::compress(Input, Compressed, Level));
|
|
// Check that uncompressed buffer is the same as original.
|
|
EXPECT_EQ(zlib::StatusOK,
|
|
zlib::uncompress(Compressed, Uncompressed, Input.size()));
|
|
EXPECT_EQ(Input, Uncompressed);
|
|
if (Input.size() > 0) {
|
|
// Uncompression fails if expected length is too short.
|
|
EXPECT_EQ(zlib::StatusBufferTooShort,
|
|
zlib::uncompress(Compressed, Uncompressed, Input.size() - 1));
|
|
}
|
|
}
|
|
|
|
TEST(CompressionTest, Zlib) {
|
|
TestZlibCompression("", zlib::DefaultCompression);
|
|
|
|
TestZlibCompression("hello, world!", zlib::NoCompression);
|
|
TestZlibCompression("hello, world!", zlib::BestSizeCompression);
|
|
TestZlibCompression("hello, world!", zlib::BestSpeedCompression);
|
|
TestZlibCompression("hello, world!", zlib::DefaultCompression);
|
|
|
|
const size_t kSize = 1024;
|
|
char BinaryData[kSize];
|
|
for (size_t i = 0; i < kSize; ++i) {
|
|
BinaryData[i] = i & 255;
|
|
}
|
|
StringRef BinaryDataStr(BinaryData, kSize);
|
|
|
|
TestZlibCompression(BinaryDataStr, zlib::NoCompression);
|
|
TestZlibCompression(BinaryDataStr, zlib::BestSizeCompression);
|
|
TestZlibCompression(BinaryDataStr, zlib::BestSpeedCompression);
|
|
TestZlibCompression(BinaryDataStr, zlib::DefaultCompression);
|
|
}
|
|
|
|
TEST(CompressionTest, ZlibCRC32) {
|
|
EXPECT_EQ(
|
|
0x414FA339U,
|
|
zlib::crc32(StringRef("The quick brown fox jumps over the lazy dog")));
|
|
}
|
|
|
|
#endif
|
|
|
|
}
|