xref: /llvm-project-15.0.7/libc/utils/UnitTest/MemoryMatcher.cpp (revision 83f9b13d)

//===-- MemoryMatcher.cpp ---------------------------------------*- C++ -*-===//
//
// 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 "MemoryMatcher.h"

namespace __llvm_libc {
namespace memory {
namespace testing {

bool MemoryMatcher::match(MemoryView actualValue) {
  actual = actualValue;
  return expected.equals(actual);
}

void display(testutils::StreamWrapper &Stream, char C) {
  const auto print = [&Stream](unsigned char I) {
    Stream << static_cast<char>(I < 10 ? '0' + I : 'A' + I - 10);
  };
  print(static_cast<unsigned char>(C) / 16);
  print(static_cast<unsigned char>(C) & 15);
}

void display(testutils::StreamWrapper &Stream, MemoryView View) {
  for (auto C : View) {
    Stream << ' ';
    display(Stream, C);
  }
}

void MemoryMatcher::explainError(testutils::StreamWrapper &Stream) {
  Stream << "expected :";
  display(Stream, expected);
  Stream << '\n';
  Stream << "actual   :";
  display(Stream, actual);
  Stream << '\n';
}

} // namespace testing
} // namespace memory
} // namespace __llvm_libc