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7470585f23
Many times unit tests for different libraries would like to use the same helper functions for checking common types of errors. This patch adds a common library with helpers for testing things in Support, and introduces helpers in here for integrating the llvm::Error and llvm::Expected<T> classes with gtest and gmock. Normally, we would just be able to write: EXPECT_THAT(someFunction(), succeeded()); but due to some quirks in llvm::Error's move semantics, gmock doesn't make this easy, so two macros EXPECT_THAT_ERROR() and EXPECT_THAT_EXPECTED() are introduced to gloss over the difficulties. Consider this an exception, and possibly only temporary as we look for ways to improve this. Differential Revision: https://reviews.llvm.org/D33059 llvm-svn: 305395
756 lines
25 KiB
C++
756 lines
25 KiB
C++
//===- llvm/unittest/Support/BinaryStreamTest.cpp -------------------------===//
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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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#include "llvm/Support/BinaryByteStream.h"
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#include "llvm/Support/BinaryItemStream.h"
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#include "llvm/Support/BinaryStreamArray.h"
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#include "llvm/Support/BinaryStreamReader.h"
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#include "llvm/Support/BinaryStreamRef.h"
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#include "llvm/Support/BinaryStreamWriter.h"
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#include "llvm/Testing/Support/Error.h"
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#include "gtest/gtest.h"
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#include <unordered_map>
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#include <utility>
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using namespace llvm;
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using namespace llvm::support;
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namespace {
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class BrokenStream : public WritableBinaryStream {
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public:
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BrokenStream(MutableArrayRef<uint8_t> Data, endianness Endian,
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uint32_t Align)
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: Data(Data), PartitionIndex(alignDown(Data.size() / 2, Align)),
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Endian(Endian) {}
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endianness getEndian() const override { return Endian; }
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Error readBytes(uint32_t Offset, uint32_t Size,
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ArrayRef<uint8_t> &Buffer) override {
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if (auto EC = checkOffset(Offset, Size))
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return EC;
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uint32_t S = startIndex(Offset);
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auto Ref = Data.drop_front(S);
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if (Ref.size() >= Size) {
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Buffer = Ref.take_front(Size);
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return Error::success();
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}
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uint32_t BytesLeft = Size - Ref.size();
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uint8_t *Ptr = Allocator.Allocate<uint8_t>(Size);
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::memcpy(Ptr, Ref.data(), Ref.size());
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::memcpy(Ptr + Ref.size(), Data.data(), BytesLeft);
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Buffer = makeArrayRef<uint8_t>(Ptr, Size);
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return Error::success();
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}
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Error readLongestContiguousChunk(uint32_t Offset,
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ArrayRef<uint8_t> &Buffer) override {
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if (auto EC = checkOffset(Offset, 1))
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return EC;
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uint32_t S = startIndex(Offset);
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Buffer = Data.drop_front(S);
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return Error::success();
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}
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uint32_t getLength() override { return Data.size(); }
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Error writeBytes(uint32_t Offset, ArrayRef<uint8_t> SrcData) override {
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if (auto EC = checkOffset(Offset, SrcData.size()))
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return EC;
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if (SrcData.empty())
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return Error::success();
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uint32_t S = startIndex(Offset);
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MutableArrayRef<uint8_t> Ref(Data);
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Ref = Ref.drop_front(S);
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if (Ref.size() >= SrcData.size()) {
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::memcpy(Ref.data(), SrcData.data(), SrcData.size());
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return Error::success();
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}
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uint32_t BytesLeft = SrcData.size() - Ref.size();
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::memcpy(Ref.data(), SrcData.data(), Ref.size());
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::memcpy(&Data[0], SrcData.data() + Ref.size(), BytesLeft);
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return Error::success();
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}
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Error commit() override { return Error::success(); }
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private:
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uint32_t startIndex(uint32_t Offset) const {
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return (Offset + PartitionIndex) % Data.size();
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}
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uint32_t endIndex(uint32_t Offset, uint32_t Size) const {
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return (startIndex(Offset) + Size - 1) % Data.size();
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}
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// Buffer is organized like this:
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// -------------------------------------------------
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// | N/2 | N/2+1 | ... | N-1 | 0 | 1 | ... | N/2-1 |
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// -------------------------------------------------
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// So reads from the beginning actually come from the middle.
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MutableArrayRef<uint8_t> Data;
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uint32_t PartitionIndex = 0;
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endianness Endian;
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BumpPtrAllocator Allocator;
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};
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constexpr endianness Endians[] = {big, little, native};
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constexpr uint32_t NumEndians = llvm::array_lengthof(Endians);
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constexpr uint32_t NumStreams = 2 * NumEndians;
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class BinaryStreamTest : public testing::Test {
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public:
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BinaryStreamTest() {}
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void SetUp() override {
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Streams.clear();
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Streams.resize(NumStreams);
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for (uint32_t I = 0; I < NumStreams; ++I)
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Streams[I].IsContiguous = (I % 2 == 0);
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InputData.clear();
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OutputData.clear();
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}
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protected:
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struct StreamPair {
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bool IsContiguous;
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std::unique_ptr<BinaryStream> Input;
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std::unique_ptr<WritableBinaryStream> Output;
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};
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void initializeInput(ArrayRef<uint8_t> Input, uint32_t Align) {
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InputData = Input;
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BrokenInputData.resize(InputData.size());
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if (!Input.empty()) {
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uint32_t PartitionIndex = alignDown(InputData.size() / 2, Align);
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uint32_t RightBytes = InputData.size() - PartitionIndex;
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uint32_t LeftBytes = PartitionIndex;
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if (RightBytes > 0)
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::memcpy(&BrokenInputData[PartitionIndex], Input.data(), RightBytes);
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if (LeftBytes > 0)
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::memcpy(&BrokenInputData[0], Input.data() + RightBytes, LeftBytes);
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}
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for (uint32_t I = 0; I < NumEndians; ++I) {
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auto InByteStream =
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llvm::make_unique<BinaryByteStream>(InputData, Endians[I]);
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auto InBrokenStream = llvm::make_unique<BrokenStream>(
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BrokenInputData, Endians[I], Align);
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Streams[I * 2].Input = std::move(InByteStream);
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Streams[I * 2 + 1].Input = std::move(InBrokenStream);
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}
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}
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void initializeOutput(uint32_t Size, uint32_t Align) {
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OutputData.resize(Size);
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BrokenOutputData.resize(Size);
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for (uint32_t I = 0; I < NumEndians; ++I) {
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Streams[I * 2].Output =
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llvm::make_unique<MutableBinaryByteStream>(OutputData, Endians[I]);
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Streams[I * 2 + 1].Output = llvm::make_unique<BrokenStream>(
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BrokenOutputData, Endians[I], Align);
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}
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}
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void initializeOutputFromInput(uint32_t Align) {
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for (uint32_t I = 0; I < NumEndians; ++I) {
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Streams[I * 2].Output =
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llvm::make_unique<MutableBinaryByteStream>(InputData, Endians[I]);
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Streams[I * 2 + 1].Output = llvm::make_unique<BrokenStream>(
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BrokenInputData, Endians[I], Align);
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}
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}
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void initializeInputFromOutput(uint32_t Align) {
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for (uint32_t I = 0; I < NumEndians; ++I) {
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Streams[I * 2].Input =
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llvm::make_unique<BinaryByteStream>(OutputData, Endians[I]);
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Streams[I * 2 + 1].Input = llvm::make_unique<BrokenStream>(
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BrokenOutputData, Endians[I], Align);
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}
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}
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std::vector<uint8_t> InputData;
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std::vector<uint8_t> BrokenInputData;
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std::vector<uint8_t> OutputData;
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std::vector<uint8_t> BrokenOutputData;
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std::vector<StreamPair> Streams;
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};
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// Tests that a we can read from a BinaryByteStream without a StreamReader.
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TEST_F(BinaryStreamTest, BinaryByteStreamBounds) {
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std::vector<uint8_t> InputData = {1, 2, 3, 4, 5};
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initializeInput(InputData, 1);
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for (auto &Stream : Streams) {
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ArrayRef<uint8_t> Buffer;
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// 1. If the read fits it should work.
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ASSERT_EQ(InputData.size(), Stream.Input->getLength());
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ASSERT_THAT_ERROR(Stream.Input->readBytes(2, 1, Buffer), Succeeded());
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EXPECT_EQ(makeArrayRef(InputData).slice(2, 1), Buffer);
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ASSERT_THAT_ERROR(Stream.Input->readBytes(0, 4, Buffer), Succeeded());
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EXPECT_EQ(makeArrayRef(InputData).slice(0, 4), Buffer);
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// 2. Reading past the bounds of the input should fail.
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EXPECT_THAT_ERROR(Stream.Input->readBytes(4, 2, Buffer), Failed());
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}
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}
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TEST_F(BinaryStreamTest, StreamRefBounds) {
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std::vector<uint8_t> InputData = {1, 2, 3, 4, 5};
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initializeInput(InputData, 1);
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for (const auto &Stream : Streams) {
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ArrayRef<uint8_t> Buffer;
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BinaryStreamRef Ref(*Stream.Input);
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// Read 1 byte from offset 2 should work
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ASSERT_EQ(InputData.size(), Ref.getLength());
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ASSERT_THAT_ERROR(Ref.readBytes(2, 1, Buffer), Succeeded());
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EXPECT_EQ(makeArrayRef(InputData).slice(2, 1), Buffer);
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// Reading everything from offset 2 on.
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ASSERT_THAT_ERROR(Ref.readLongestContiguousChunk(2, Buffer), Succeeded());
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if (Stream.IsContiguous)
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EXPECT_EQ(makeArrayRef(InputData).slice(2), Buffer);
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else
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EXPECT_FALSE(Buffer.empty());
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// Reading 6 bytes from offset 0 is too big.
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EXPECT_THAT_ERROR(Ref.readBytes(0, 6, Buffer), Failed());
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EXPECT_THAT_ERROR(Ref.readLongestContiguousChunk(6, Buffer), Failed());
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// Reading 1 byte from offset 2 after dropping 1 byte is the same as reading
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// 1 byte from offset 3.
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Ref = Ref.drop_front(1);
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ASSERT_THAT_ERROR(Ref.readBytes(2, 1, Buffer), Succeeded());
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if (Stream.IsContiguous)
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EXPECT_EQ(makeArrayRef(InputData).slice(3, 1), Buffer);
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else
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EXPECT_FALSE(Buffer.empty());
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// Reading everything from offset 2 on after dropping 1 byte.
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ASSERT_THAT_ERROR(Ref.readLongestContiguousChunk(2, Buffer), Succeeded());
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if (Stream.IsContiguous)
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EXPECT_EQ(makeArrayRef(InputData).slice(3), Buffer);
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else
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EXPECT_FALSE(Buffer.empty());
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// Reading 2 bytes from offset 2 after dropping 2 bytes is the same as
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// reading 2 bytes from offset 4, and should fail.
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Ref = Ref.drop_front(1);
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EXPECT_THAT_ERROR(Ref.readBytes(2, 2, Buffer), Failed());
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// But if we read the longest contiguous chunk instead, we should still
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// get the 1 byte at the end.
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ASSERT_THAT_ERROR(Ref.readLongestContiguousChunk(2, Buffer), Succeeded());
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EXPECT_EQ(makeArrayRef(InputData).take_back(), Buffer);
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}
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}
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TEST_F(BinaryStreamTest, DropOperations) {
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std::vector<uint8_t> InputData = {1, 2, 3, 4, 5, 4, 3, 2, 1};
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auto RefData = makeArrayRef(InputData);
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initializeInput(InputData, 1);
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ArrayRef<uint8_t> Result;
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BinaryStreamRef Original(InputData, support::little);
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ASSERT_EQ(InputData.size(), Original.getLength());
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EXPECT_THAT_ERROR(Original.readBytes(0, InputData.size(), Result),
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Succeeded());
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EXPECT_EQ(RefData, Result);
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auto Dropped = Original.drop_front(2);
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EXPECT_THAT_ERROR(Dropped.readBytes(0, Dropped.getLength(), Result),
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Succeeded());
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EXPECT_EQ(RefData.drop_front(2), Result);
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Dropped = Original.drop_back(2);
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EXPECT_THAT_ERROR(Dropped.readBytes(0, Dropped.getLength(), Result),
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Succeeded());
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EXPECT_EQ(RefData.drop_back(2), Result);
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Dropped = Original.keep_front(2);
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EXPECT_THAT_ERROR(Dropped.readBytes(0, Dropped.getLength(), Result),
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Succeeded());
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EXPECT_EQ(RefData.take_front(2), Result);
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Dropped = Original.keep_back(2);
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EXPECT_THAT_ERROR(Dropped.readBytes(0, Dropped.getLength(), Result),
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Succeeded());
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EXPECT_EQ(RefData.take_back(2), Result);
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Dropped = Original.drop_symmetric(2);
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EXPECT_THAT_ERROR(Dropped.readBytes(0, Dropped.getLength(), Result),
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Succeeded());
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EXPECT_EQ(RefData.drop_front(2).drop_back(2), Result);
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}
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// Test that we can write to a BinaryStream without a StreamWriter.
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TEST_F(BinaryStreamTest, MutableBinaryByteStreamBounds) {
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std::vector<uint8_t> InputData = {'T', 'e', 's', 't', '\0'};
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initializeInput(InputData, 1);
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initializeOutput(InputData.size(), 1);
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// For every combination of input stream and output stream.
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for (auto &Stream : Streams) {
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MutableArrayRef<uint8_t> Buffer;
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ASSERT_EQ(InputData.size(), Stream.Input->getLength());
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// 1. Try two reads that are supposed to work. One from offset 0, and one
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// from the middle.
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uint32_t Offsets[] = {0, 3};
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for (auto Offset : Offsets) {
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uint32_t ExpectedSize = Stream.Input->getLength() - Offset;
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// Read everything from Offset until the end of the input data.
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ArrayRef<uint8_t> Data;
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ASSERT_THAT_ERROR(Stream.Input->readBytes(Offset, ExpectedSize, Data),
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Succeeded());
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ASSERT_EQ(ExpectedSize, Data.size());
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// Then write it to the destination.
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ASSERT_THAT_ERROR(Stream.Output->writeBytes(0, Data), Succeeded());
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// Then we read back what we wrote, it should match the corresponding
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// slice of the original input data.
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ArrayRef<uint8_t> Data2;
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ASSERT_THAT_ERROR(Stream.Output->readBytes(Offset, ExpectedSize, Data2),
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Succeeded());
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EXPECT_EQ(makeArrayRef(InputData).drop_front(Offset), Data2);
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}
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std::vector<uint8_t> BigData = {0, 1, 2, 3, 4};
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// 2. If the write is too big, it should fail.
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EXPECT_THAT_ERROR(Stream.Output->writeBytes(3, BigData), Failed());
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}
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}
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// Test that FixedStreamArray works correctly.
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TEST_F(BinaryStreamTest, FixedStreamArray) {
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std::vector<uint32_t> Ints = {90823, 12908, 109823, 209823};
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ArrayRef<uint8_t> IntBytes(reinterpret_cast<uint8_t *>(Ints.data()),
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Ints.size() * sizeof(uint32_t));
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initializeInput(IntBytes, alignof(uint32_t));
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for (auto &Stream : Streams) {
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MutableArrayRef<uint8_t> Buffer;
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ASSERT_EQ(InputData.size(), Stream.Input->getLength());
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FixedStreamArray<uint32_t> Array(*Stream.Input);
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auto Iter = Array.begin();
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ASSERT_EQ(Ints[0], *Iter++);
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ASSERT_EQ(Ints[1], *Iter++);
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ASSERT_EQ(Ints[2], *Iter++);
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ASSERT_EQ(Ints[3], *Iter++);
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ASSERT_EQ(Array.end(), Iter);
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}
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}
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// Ensure FixedStreamArrayIterator::operator-> works.
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// Added for coverage of r302257.
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TEST_F(BinaryStreamTest, FixedStreamArrayIteratorArrow) {
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std::vector<std::pair<uint32_t, uint32_t>> Pairs = {{867, 5309}, {555, 1212}};
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ArrayRef<uint8_t> PairBytes(reinterpret_cast<uint8_t *>(Pairs.data()),
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Pairs.size() * sizeof(Pairs[0]));
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initializeInput(PairBytes, alignof(uint32_t));
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for (auto &Stream : Streams) {
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ASSERT_EQ(InputData.size(), Stream.Input->getLength());
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const FixedStreamArray<std::pair<uint32_t, uint32_t>> Array(*Stream.Input);
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auto Iter = Array.begin();
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ASSERT_EQ(Pairs[0].first, Iter->first);
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ASSERT_EQ(Pairs[0].second, Iter->second);
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++Iter;
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ASSERT_EQ(Pairs[1].first, Iter->first);
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ASSERT_EQ(Pairs[1].second, Iter->second);
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++Iter;
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ASSERT_EQ(Array.end(), Iter);
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}
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}
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// Test that VarStreamArray works correctly.
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TEST_F(BinaryStreamTest, VarStreamArray) {
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StringLiteral Strings("1. Test2. Longer Test3. Really Long Test4. Super "
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"Extra Longest Test Of All");
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ArrayRef<uint8_t> StringBytes(
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reinterpret_cast<const uint8_t *>(Strings.data()), Strings.size());
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initializeInput(StringBytes, 1);
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struct StringExtractor {
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public:
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Error operator()(BinaryStreamRef Stream, uint32_t &Len, StringRef &Item) {
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if (Index == 0)
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Len = strlen("1. Test");
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else if (Index == 1)
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Len = strlen("2. Longer Test");
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else if (Index == 2)
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Len = strlen("3. Really Long Test");
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else
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Len = strlen("4. Super Extra Longest Test Of All");
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ArrayRef<uint8_t> Bytes;
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if (auto EC = Stream.readBytes(0, Len, Bytes))
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return EC;
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Item =
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StringRef(reinterpret_cast<const char *>(Bytes.data()), Bytes.size());
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++Index;
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return Error::success();
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}
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uint32_t Index = 0;
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};
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for (auto &Stream : Streams) {
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VarStreamArray<StringRef, StringExtractor> Array(*Stream.Input);
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auto Iter = Array.begin();
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ASSERT_EQ("1. Test", *Iter++);
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ASSERT_EQ("2. Longer Test", *Iter++);
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ASSERT_EQ("3. Really Long Test", *Iter++);
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ASSERT_EQ("4. Super Extra Longest Test Of All", *Iter++);
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ASSERT_EQ(Array.end(), Iter);
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}
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}
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TEST_F(BinaryStreamTest, StreamReaderBounds) {
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std::vector<uint8_t> Bytes;
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initializeInput(Bytes, 1);
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for (auto &Stream : Streams) {
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StringRef S;
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BinaryStreamReader Reader(*Stream.Input);
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EXPECT_EQ(0U, Reader.bytesRemaining());
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EXPECT_THAT_ERROR(Reader.readFixedString(S, 1), Failed());
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}
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Bytes.resize(5);
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initializeInput(Bytes, 1);
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for (auto &Stream : Streams) {
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StringRef S;
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BinaryStreamReader Reader(*Stream.Input);
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EXPECT_EQ(Bytes.size(), Reader.bytesRemaining());
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EXPECT_THAT_ERROR(Reader.readFixedString(S, 5), Succeeded());
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EXPECT_THAT_ERROR(Reader.readFixedString(S, 6), Failed());
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}
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}
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TEST_F(BinaryStreamTest, StreamReaderIntegers) {
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support::ulittle64_t Little{908234};
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support::ubig32_t Big{28907823};
|
|
short NS = 2897;
|
|
int NI = -89723;
|
|
unsigned long NUL = 902309023UL;
|
|
constexpr uint32_t Size =
|
|
sizeof(Little) + sizeof(Big) + sizeof(NS) + sizeof(NI) + sizeof(NUL);
|
|
|
|
initializeOutput(Size, alignof(support::ulittle64_t));
|
|
initializeInputFromOutput(alignof(support::ulittle64_t));
|
|
|
|
for (auto &Stream : Streams) {
|
|
BinaryStreamWriter Writer(*Stream.Output);
|
|
ASSERT_THAT_ERROR(Writer.writeObject(Little), Succeeded());
|
|
ASSERT_THAT_ERROR(Writer.writeObject(Big), Succeeded());
|
|
ASSERT_THAT_ERROR(Writer.writeInteger(NS), Succeeded());
|
|
ASSERT_THAT_ERROR(Writer.writeInteger(NI), Succeeded());
|
|
ASSERT_THAT_ERROR(Writer.writeInteger(NUL), Succeeded());
|
|
|
|
const support::ulittle64_t *Little2;
|
|
const support::ubig32_t *Big2;
|
|
short NS2;
|
|
int NI2;
|
|
unsigned long NUL2;
|
|
|
|
// 1. Reading fields individually.
|
|
BinaryStreamReader Reader(*Stream.Input);
|
|
ASSERT_THAT_ERROR(Reader.readObject(Little2), Succeeded());
|
|
ASSERT_THAT_ERROR(Reader.readObject(Big2), Succeeded());
|
|
ASSERT_THAT_ERROR(Reader.readInteger(NS2), Succeeded());
|
|
ASSERT_THAT_ERROR(Reader.readInteger(NI2), Succeeded());
|
|
ASSERT_THAT_ERROR(Reader.readInteger(NUL2), Succeeded());
|
|
ASSERT_EQ(0U, Reader.bytesRemaining());
|
|
|
|
EXPECT_EQ(Little, *Little2);
|
|
EXPECT_EQ(Big, *Big2);
|
|
EXPECT_EQ(NS, NS2);
|
|
EXPECT_EQ(NI, NI2);
|
|
EXPECT_EQ(NUL, NUL2);
|
|
}
|
|
}
|
|
|
|
TEST_F(BinaryStreamTest, StreamReaderIntegerArray) {
|
|
// 1. Arrays of integers
|
|
std::vector<int> Ints = {1, 2, 3, 4, 5};
|
|
ArrayRef<uint8_t> IntBytes(reinterpret_cast<uint8_t *>(&Ints[0]),
|
|
Ints.size() * sizeof(int));
|
|
|
|
initializeInput(IntBytes, alignof(int));
|
|
for (auto &Stream : Streams) {
|
|
BinaryStreamReader Reader(*Stream.Input);
|
|
ArrayRef<int> IntsRef;
|
|
ASSERT_THAT_ERROR(Reader.readArray(IntsRef, Ints.size()), Succeeded());
|
|
ASSERT_EQ(0U, Reader.bytesRemaining());
|
|
EXPECT_EQ(makeArrayRef(Ints), IntsRef);
|
|
|
|
Reader.setOffset(0);
|
|
FixedStreamArray<int> FixedIntsRef;
|
|
ASSERT_THAT_ERROR(Reader.readArray(FixedIntsRef, Ints.size()), Succeeded());
|
|
ASSERT_EQ(0U, Reader.bytesRemaining());
|
|
ASSERT_EQ(Ints, std::vector<int>(FixedIntsRef.begin(), FixedIntsRef.end()));
|
|
}
|
|
}
|
|
|
|
TEST_F(BinaryStreamTest, StreamReaderEnum) {
|
|
enum class MyEnum : int64_t { Foo = -10, Bar = 0, Baz = 10 };
|
|
|
|
std::vector<MyEnum> Enums = {MyEnum::Bar, MyEnum::Baz, MyEnum::Foo};
|
|
|
|
initializeOutput(Enums.size() * sizeof(MyEnum), alignof(MyEnum));
|
|
initializeInputFromOutput(alignof(MyEnum));
|
|
for (auto &Stream : Streams) {
|
|
BinaryStreamWriter Writer(*Stream.Output);
|
|
for (auto Value : Enums)
|
|
ASSERT_THAT_ERROR(Writer.writeEnum(Value), Succeeded());
|
|
|
|
BinaryStreamReader Reader(*Stream.Input);
|
|
|
|
ArrayRef<MyEnum> Array;
|
|
FixedStreamArray<MyEnum> FSA;
|
|
|
|
for (size_t I = 0; I < Enums.size(); ++I) {
|
|
MyEnum Value;
|
|
ASSERT_THAT_ERROR(Reader.readEnum(Value), Succeeded());
|
|
EXPECT_EQ(Enums[I], Value);
|
|
}
|
|
ASSERT_EQ(0U, Reader.bytesRemaining());
|
|
}
|
|
}
|
|
|
|
TEST_F(BinaryStreamTest, StreamReaderObject) {
|
|
struct Foo {
|
|
int X;
|
|
double Y;
|
|
char Z;
|
|
|
|
bool operator==(const Foo &Other) const {
|
|
return X == Other.X && Y == Other.Y && Z == Other.Z;
|
|
}
|
|
};
|
|
|
|
std::vector<Foo> Foos;
|
|
Foos.push_back({-42, 42.42, 42});
|
|
Foos.push_back({100, 3.1415, static_cast<char>(-89)});
|
|
Foos.push_back({200, 2.718, static_cast<char>(-12) });
|
|
|
|
const uint8_t *Bytes = reinterpret_cast<const uint8_t *>(&Foos[0]);
|
|
|
|
initializeInput(makeArrayRef(Bytes, 3 * sizeof(Foo)), alignof(Foo));
|
|
|
|
for (auto &Stream : Streams) {
|
|
// 1. Reading object pointers.
|
|
BinaryStreamReader Reader(*Stream.Input);
|
|
const Foo *FPtrOut = nullptr;
|
|
const Foo *GPtrOut = nullptr;
|
|
const Foo *HPtrOut = nullptr;
|
|
ASSERT_THAT_ERROR(Reader.readObject(FPtrOut), Succeeded());
|
|
ASSERT_THAT_ERROR(Reader.readObject(GPtrOut), Succeeded());
|
|
ASSERT_THAT_ERROR(Reader.readObject(HPtrOut), Succeeded());
|
|
EXPECT_EQ(0U, Reader.bytesRemaining());
|
|
EXPECT_EQ(Foos[0], *FPtrOut);
|
|
EXPECT_EQ(Foos[1], *GPtrOut);
|
|
EXPECT_EQ(Foos[2], *HPtrOut);
|
|
}
|
|
}
|
|
|
|
TEST_F(BinaryStreamTest, StreamReaderStrings) {
|
|
std::vector<uint8_t> Bytes = {'O', 'n', 'e', '\0', 'T', 'w', 'o',
|
|
'\0', 'T', 'h', 'r', 'e', 'e', '\0',
|
|
'F', 'o', 'u', 'r', '\0'};
|
|
initializeInput(Bytes, 1);
|
|
|
|
for (auto &Stream : Streams) {
|
|
BinaryStreamReader Reader(*Stream.Input);
|
|
|
|
StringRef S1;
|
|
StringRef S2;
|
|
StringRef S3;
|
|
StringRef S4;
|
|
ASSERT_THAT_ERROR(Reader.readCString(S1), Succeeded());
|
|
ASSERT_THAT_ERROR(Reader.readCString(S2), Succeeded());
|
|
ASSERT_THAT_ERROR(Reader.readCString(S3), Succeeded());
|
|
ASSERT_THAT_ERROR(Reader.readCString(S4), Succeeded());
|
|
ASSERT_EQ(0U, Reader.bytesRemaining());
|
|
|
|
EXPECT_EQ("One", S1);
|
|
EXPECT_EQ("Two", S2);
|
|
EXPECT_EQ("Three", S3);
|
|
EXPECT_EQ("Four", S4);
|
|
|
|
S1 = S2 = S3 = S4 = "";
|
|
Reader.setOffset(0);
|
|
ASSERT_THAT_ERROR(Reader.readFixedString(S1, 3), Succeeded());
|
|
ASSERT_THAT_ERROR(Reader.skip(1), Succeeded());
|
|
ASSERT_THAT_ERROR(Reader.readFixedString(S2, 3), Succeeded());
|
|
ASSERT_THAT_ERROR(Reader.skip(1), Succeeded());
|
|
ASSERT_THAT_ERROR(Reader.readFixedString(S3, 5), Succeeded());
|
|
ASSERT_THAT_ERROR(Reader.skip(1), Succeeded());
|
|
ASSERT_THAT_ERROR(Reader.readFixedString(S4, 4), Succeeded());
|
|
ASSERT_THAT_ERROR(Reader.skip(1), Succeeded());
|
|
ASSERT_EQ(0U, Reader.bytesRemaining());
|
|
|
|
EXPECT_EQ("One", S1);
|
|
EXPECT_EQ("Two", S2);
|
|
EXPECT_EQ("Three", S3);
|
|
EXPECT_EQ("Four", S4);
|
|
}
|
|
}
|
|
|
|
TEST_F(BinaryStreamTest, StreamWriterBounds) {
|
|
initializeOutput(5, 1);
|
|
|
|
for (auto &Stream : Streams) {
|
|
BinaryStreamWriter Writer(*Stream.Output);
|
|
|
|
// 1. Can write a string that exactly fills the buffer.
|
|
EXPECT_EQ(5U, Writer.bytesRemaining());
|
|
EXPECT_THAT_ERROR(Writer.writeFixedString("abcde"), Succeeded());
|
|
EXPECT_EQ(0U, Writer.bytesRemaining());
|
|
|
|
// 2. Can write an empty string even when you're full
|
|
EXPECT_THAT_ERROR(Writer.writeFixedString(""), Succeeded());
|
|
EXPECT_THAT_ERROR(Writer.writeFixedString("a"), Failed());
|
|
|
|
// 3. Can't write a string that is one character too long.
|
|
Writer.setOffset(0);
|
|
EXPECT_THAT_ERROR(Writer.writeFixedString("abcdef"), Failed());
|
|
}
|
|
}
|
|
|
|
TEST_F(BinaryStreamTest, StreamWriterIntegerArrays) {
|
|
// 3. Arrays of integers
|
|
std::vector<int> SourceInts = {1, 2, 3, 4, 5};
|
|
ArrayRef<uint8_t> SourceBytes(reinterpret_cast<uint8_t *>(&SourceInts[0]),
|
|
SourceInts.size() * sizeof(int));
|
|
|
|
initializeInput(SourceBytes, alignof(int));
|
|
initializeOutputFromInput(alignof(int));
|
|
|
|
for (auto &Stream : Streams) {
|
|
BinaryStreamReader Reader(*Stream.Input);
|
|
BinaryStreamWriter Writer(*Stream.Output);
|
|
ArrayRef<int> Ints;
|
|
ArrayRef<int> Ints2;
|
|
// First read them, then write them, then read them back.
|
|
ASSERT_THAT_ERROR(Reader.readArray(Ints, SourceInts.size()), Succeeded());
|
|
ASSERT_THAT_ERROR(Writer.writeArray(Ints), Succeeded());
|
|
|
|
BinaryStreamReader ReaderBacker(*Stream.Output);
|
|
ASSERT_THAT_ERROR(ReaderBacker.readArray(Ints2, SourceInts.size()),
|
|
Succeeded());
|
|
|
|
EXPECT_EQ(makeArrayRef(SourceInts), Ints2);
|
|
}
|
|
}
|
|
|
|
TEST_F(BinaryStreamTest, StringWriterStrings) {
|
|
StringRef Strings[] = {"First", "Second", "Third", "Fourth"};
|
|
|
|
size_t Length = 0;
|
|
for (auto S : Strings)
|
|
Length += S.size() + 1;
|
|
initializeOutput(Length, 1);
|
|
initializeInputFromOutput(1);
|
|
|
|
for (auto &Stream : Streams) {
|
|
BinaryStreamWriter Writer(*Stream.Output);
|
|
for (auto S : Strings)
|
|
ASSERT_THAT_ERROR(Writer.writeCString(S), Succeeded());
|
|
std::vector<StringRef> InStrings;
|
|
BinaryStreamReader Reader(*Stream.Input);
|
|
while (!Reader.empty()) {
|
|
StringRef S;
|
|
ASSERT_THAT_ERROR(Reader.readCString(S), Succeeded());
|
|
InStrings.push_back(S);
|
|
}
|
|
EXPECT_EQ(makeArrayRef(Strings), makeArrayRef(InStrings));
|
|
}
|
|
}
|
|
}
|
|
|
|
namespace {
|
|
struct BinaryItemStreamObject {
|
|
explicit BinaryItemStreamObject(ArrayRef<uint8_t> Bytes) : Bytes(Bytes) {}
|
|
|
|
ArrayRef<uint8_t> Bytes;
|
|
};
|
|
}
|
|
|
|
namespace llvm {
|
|
template <> struct BinaryItemTraits<BinaryItemStreamObject> {
|
|
static size_t length(const BinaryItemStreamObject &Item) {
|
|
return Item.Bytes.size();
|
|
}
|
|
|
|
static ArrayRef<uint8_t> bytes(const BinaryItemStreamObject &Item) {
|
|
return Item.Bytes;
|
|
}
|
|
};
|
|
}
|
|
|
|
namespace {
|
|
|
|
TEST_F(BinaryStreamTest, BinaryItemStream) {
|
|
std::vector<BinaryItemStreamObject> Objects;
|
|
|
|
struct Foo {
|
|
int X;
|
|
double Y;
|
|
};
|
|
std::vector<Foo> Foos = {{1, 1.0}, {2, 2.0}, {3, 3.0}};
|
|
BumpPtrAllocator Allocator;
|
|
for (const auto &F : Foos) {
|
|
uint8_t *Ptr = static_cast<uint8_t *>(Allocator.Allocate(sizeof(Foo),
|
|
alignof(Foo)));
|
|
MutableArrayRef<uint8_t> Buffer(Ptr, sizeof(Foo));
|
|
MutableBinaryByteStream Stream(Buffer, llvm::support::big);
|
|
BinaryStreamWriter Writer(Stream);
|
|
ASSERT_THAT_ERROR(Writer.writeObject(F), Succeeded());
|
|
Objects.push_back(BinaryItemStreamObject(Buffer));
|
|
}
|
|
|
|
BinaryItemStream<BinaryItemStreamObject> ItemStream(big);
|
|
ItemStream.setItems(Objects);
|
|
BinaryStreamReader Reader(ItemStream);
|
|
|
|
for (const auto &F : Foos) {
|
|
const Foo *F2;
|
|
ASSERT_THAT_ERROR(Reader.readObject(F2), Succeeded());
|
|
|
|
EXPECT_EQ(F.X, F2->X);
|
|
EXPECT_DOUBLE_EQ(F.Y, F2->Y);
|
|
}
|
|
}
|
|
|
|
} // end anonymous namespace
|