llvm/unittests/Object/SymbolicFileTest.cpp

//===- SymbolicFileTest.cpp - Tests for SymbolicFile.cpp ------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#include "llvm/Object/SymbolicFile.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/TargetParser/Host.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include <sstream>

TEST(Object, DataRefImplOstream) {
  std::string s;
  llvm::raw_string_ostream OS(s);
  llvm::object::DataRefImpl Data;
  Data.d.a = 0xeeee0000;
  Data.d.b = 0x0000ffff;

  static_assert(sizeof Data.p == sizeof(uint64_t) ||
                    sizeof Data.p == sizeof(uint32_t),
                "Test expected pointer type to be 32 or 64-bit.");

  char const *Expected;

  if (sizeof Data.p == sizeof(uint64_t)) {
    Expected = llvm::sys::IsLittleEndianHost
                             ? "(0xffffeeee0000 (0xeeee0000, 0x0000ffff))"
                             : "(0xeeee00000000ffff (0xeeee0000, 0x0000ffff))";
  }
  else {
    Expected = "(0xeeee0000 (0xeeee0000, 0x0000ffff))";
  }

  OS << Data;

  EXPECT_EQ(Expected, s);
}

struct ProxyContent {
  unsigned Index = 0;
  ProxyContent(unsigned Index) : Index(Index) {};
  void moveNext() { ++Index; }

  bool operator==(const ProxyContent &Another) const {
    return Index == Another.Index;
  }
};

TEST(Object, ContentIterator) {
  using Iter = llvm::object::content_iterator<ProxyContent>;
  auto Sequence = llvm::make_range(Iter(0u), Iter(10u));
  auto EvenSequence = llvm::make_filter_range(
      Sequence, [](auto &&PC) { return PC.Index % 2 == 0; });

  EXPECT_THAT(EvenSequence, testing::ElementsAre(0u, 2u, 4u, 6u, 8u));
}