mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-23 17:29:19 +00:00
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180084 91177308-0d34-0410-b5e6-96231b3b80d8
69 lines
2.3 KiB
C++
69 lines
2.3 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/OwningPtr.h"
|
|
#include "llvm/ADT/StringRef.h"
|
|
#include "llvm/Config/config.h"
|
|
#include "llvm/Support/MemoryBuffer.h"
|
|
#include "gtest/gtest.h"
|
|
|
|
using namespace llvm;
|
|
|
|
namespace {
|
|
|
|
#if LLVM_ENABLE_ZLIB == 1 && HAVE_LIBZ
|
|
|
|
void TestZlibCompression(StringRef Input, zlib::CompressionLevel Level) {
|
|
OwningPtr<MemoryBuffer> Compressed;
|
|
OwningPtr<MemoryBuffer> 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->getBuffer(),
|
|
Uncompressed, Input.size()));
|
|
EXPECT_EQ(Input.size(), Uncompressed->getBufferSize());
|
|
EXPECT_EQ(0,
|
|
memcmp(Input.data(), Uncompressed->getBufferStart(), Input.size()));
|
|
if (Input.size() > 0) {
|
|
// Uncompression fails if expected length is too short.
|
|
EXPECT_EQ(zlib::StatusBufferTooShort,
|
|
zlib::uncompress(Compressed->getBuffer(), 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);
|
|
}
|
|
|
|
#endif
|
|
|
|
}
|