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No any changes, will follow up with D28807 commit containing APLi change for clang to fix build issues happened. Original commit message: [Support/Compression] - Change zlib API to return Error instead of custom status. Previously API returned custom enum values. Patch changes it to return Error with string description. That should help users to report errors in universal way. Differential revision: https://reviews.llvm.org/D28684 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292226 91177308-0d34-0410-b5e6-96231b3b80d8
78 lines
2.3 KiB
C++
78 lines
2.3 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/Support/Error.h"
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#include "llvm/ADT/SmallString.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Config/config.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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SmallString<32> Compressed;
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SmallString<32> Uncompressed;
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Error E = zlib::compress(Input, Compressed, Level);
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EXPECT_FALSE(E);
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consumeError(std::move(E));
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// Check that uncompressed buffer is the same as original.
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E = zlib::uncompress(Compressed, Uncompressed, Input.size());
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EXPECT_FALSE(E);
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consumeError(std::move(E));
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EXPECT_EQ(Input, Uncompressed);
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if (Input.size() > 0) {
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// Uncompression fails if expected length is too short.
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E = zlib::uncompress(Compressed, Uncompressed, Input.size() - 1);
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EXPECT_EQ("zlib error: Z_BUF_ERROR", llvm::toString(std::move(E)));
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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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