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//===- MemoryBufferRefTest.cpp - MemoryBufferRef tests --------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// This file implements unit tests for the MemoryBufferRef support class.
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/MemoryBufferRef.h"
#include "llvm/Support/MemoryBuffer.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
TEST(MemoryBufferRefTest, construct) {
std::unique_ptr<MemoryBuffer> MB(MemoryBuffer::getMemBuffer("data", "id"));
MemoryBufferRef MBR(*MB);
EXPECT_EQ(MB->getBufferStart(), MBR.getBufferStart());
EXPECT_EQ(MB->getBufferIdentifier(), MBR.getBufferIdentifier());
}
TEST(MemoryBufferRefTest, compareEquals) {
std::string Data = "data";
std::unique_ptr<MemoryBuffer> MB(MemoryBuffer::getMemBuffer(Data, "id"));
MemoryBufferRef Ref(*MB);
MemoryBufferRef Empty;
MemoryBufferRef NoIdentifier(MB->getBuffer(), "");
MemoryBufferRef NoData("", MB->getBufferIdentifier());
MemoryBufferRef Same(MB->getBuffer(), MB->getBufferIdentifier());
EXPECT_NE(Empty, Ref);
EXPECT_NE(NoIdentifier, Ref);
EXPECT_NE(NoData, Ref);
EXPECT_EQ(Same, Ref);
// Confirm NE when content matches but pointer identity does not.
std::unique_ptr<MemoryBuffer> Copy(
MemoryBuffer::getMemBufferCopy(Data, "id"));
MemoryBufferRef CopyRef(*Copy);
EXPECT_EQ(Ref.getBuffer(), CopyRef.getBuffer());
EXPECT_NE(Ref, CopyRef);
}
} // end namespace
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