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#include "llvm/Object/OffloadBinary.h"
#include "llvm/Testing/Support/Error.h"
#include "gtest/gtest.h"
#include <random>
using namespace llvm;
using namespace llvm::object;
TEST(OffloadingTest, checkOffloadingBinary) {
// Create random data to fill the image.
std::mt19937 Rng(std::random_device{}());
std::uniform_int_distribution<uint64_t> SizeDist(0, 256);
std::uniform_int_distribution<uint16_t> KindDist(0);
std::uniform_int_distribution<uint16_t> BinaryDist(
std::numeric_limits<uint8_t>::min(), std::numeric_limits<uint8_t>::max());
std::uniform_int_distribution<int16_t> StringDist('!', '~');
std::vector<uint8_t> Image(SizeDist(Rng));
std::generate(Image.begin(), Image.end(), [&]() { return BinaryDist(Rng); });
std::vector<std::pair<std::string, std::string>> Strings(SizeDist(Rng));
for (auto &KeyAndValue : Strings) {
std::string Key(SizeDist(Rng), '\0');
std::string Value(SizeDist(Rng), '\0');
std::generate(Key.begin(), Key.end(), [&]() { return StringDist(Rng); });
std::generate(Value.begin(), Value.end(),
[&]() { return StringDist(Rng); });
KeyAndValue = std::make_pair(Key, Value);
}
// Create the image.
StringMap<StringRef> StringData;
for (auto &KeyAndValue : Strings)
StringData[KeyAndValue.first] = KeyAndValue.second;
std::unique_ptr<MemoryBuffer> ImageData = MemoryBuffer::getMemBuffer(
{reinterpret_cast<char *>(Image.data()), Image.size()}, "", false);
OffloadBinary::OffloadingImage Data;
Data.TheImageKind = static_cast<ImageKind>(KindDist(Rng));
Data.TheOffloadKind = static_cast<OffloadKind>(KindDist(Rng));
Data.Flags = KindDist(Rng);
Data.StringData = StringData;
Data.Image = std::move(ImageData);
auto BinaryBuffer = OffloadBinary::write(Data);
auto BinaryOrErr = OffloadBinary::create(*BinaryBuffer);
if (!BinaryOrErr)
FAIL();
// Make sure we get the same data out.
auto &Binary = **BinaryOrErr;
ASSERT_EQ(Data.TheImageKind, Binary.getImageKind());
ASSERT_EQ(Data.TheOffloadKind, Binary.getOffloadKind());
ASSERT_EQ(Data.Flags, Binary.getFlags());
for (auto &KeyAndValue : Strings)
ASSERT_TRUE(StringData[KeyAndValue.first] ==
Binary.getString(KeyAndValue.first));
EXPECT_TRUE(Data.Image->getBuffer() == Binary.getImage());
// Ensure the size and alignment of the data is correct.
EXPECT_TRUE(Binary.getSize() % OffloadBinary::getAlignment() == 0);
EXPECT_TRUE(Binary.getSize() == BinaryBuffer->getBuffer().size());
}
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