68 lines · cpp
1#include "llvm/Object/OffloadBinary.h"2 3#include "llvm/Testing/Support/Error.h"4#include "gtest/gtest.h"5#include <random>6 7using namespace llvm;8using namespace llvm::object;9 10TEST(OffloadingTest, checkOffloadingBinary) {11 // Create random data to fill the image.12 std::mt19937 Rng(std::random_device{}());13 std::uniform_int_distribution<uint64_t> SizeDist(0, 256);14 std::uniform_int_distribution<uint16_t> KindDist(0);15 std::uniform_int_distribution<uint16_t> BinaryDist(16 std::numeric_limits<uint8_t>::min(), std::numeric_limits<uint8_t>::max());17 std::uniform_int_distribution<int16_t> StringDist('!', '~');18 std::vector<uint8_t> Image(SizeDist(Rng));19 std::generate(Image.begin(), Image.end(), [&]() { return BinaryDist(Rng); });20 std::vector<std::pair<std::string, std::string>> Strings(SizeDist(Rng));21 for (auto &KeyAndValue : Strings) {22 std::string Key(SizeDist(Rng), '\0');23 std::string Value(SizeDist(Rng), '\0');24 25 std::generate(Key.begin(), Key.end(), [&]() { return StringDist(Rng); });26 std::generate(Value.begin(), Value.end(),27 [&]() { return StringDist(Rng); });28 29 KeyAndValue = std::make_pair(Key, Value);30 }31 32 // Create the image.33 MapVector<StringRef, StringRef> StringData;34 for (auto &KeyAndValue : Strings)35 StringData[KeyAndValue.first] = KeyAndValue.second;36 std::unique_ptr<MemoryBuffer> ImageData = MemoryBuffer::getMemBuffer(37 {reinterpret_cast<char *>(Image.data()), Image.size()}, "", false);38 39 OffloadBinary::OffloadingImage Data;40 Data.TheImageKind = static_cast<ImageKind>(KindDist(Rng));41 Data.TheOffloadKind = static_cast<OffloadKind>(KindDist(Rng));42 Data.Flags = KindDist(Rng);43 Data.StringData = StringData;44 Data.Image = std::move(ImageData);45 46 auto BinaryBuffer =47 MemoryBuffer::getMemBufferCopy(OffloadBinary::write(Data));48 auto BinaryOrErr = OffloadBinary::create(*BinaryBuffer);49 if (!BinaryOrErr)50 FAIL();51 52 // Make sure we get the same data out.53 auto &Binary = **BinaryOrErr;54 ASSERT_EQ(Data.TheImageKind, Binary.getImageKind());55 ASSERT_EQ(Data.TheOffloadKind, Binary.getOffloadKind());56 ASSERT_EQ(Data.Flags, Binary.getFlags());57 58 for (auto &KeyAndValue : Strings)59 ASSERT_TRUE(StringData[KeyAndValue.first] ==60 Binary.getString(KeyAndValue.first));61 62 EXPECT_TRUE(Data.Image->getBuffer() == Binary.getImage());63 64 // Ensure the size and alignment of the data is correct.65 EXPECT_TRUE(Binary.getSize() % OffloadBinary::getAlignment() == 0);66 EXPECT_TRUE(Binary.getSize() == BinaryBuffer->getBuffer().size());67}68