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52 lines
1.7 KiB
52 lines
1.7 KiB
//===- MemoryBufferRefTest.cpp - MemoryBufferRef tests --------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements unit tests for the MemoryBufferRef support class.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/MemoryBufferRef.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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namespace {
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TEST(MemoryBufferRefTest, construct) {
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std::unique_ptr<MemoryBuffer> MB(MemoryBuffer::getMemBuffer("data", "id"));
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MemoryBufferRef MBR(*MB);
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EXPECT_EQ(MB->getBufferStart(), MBR.getBufferStart());
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EXPECT_EQ(MB->getBufferIdentifier(), MBR.getBufferIdentifier());
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}
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TEST(MemoryBufferRefTest, compareEquals) {
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std::string Data = "data";
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std::unique_ptr<MemoryBuffer> MB(MemoryBuffer::getMemBuffer(Data, "id"));
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MemoryBufferRef Ref(*MB);
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MemoryBufferRef Empty;
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MemoryBufferRef NoIdentifier(MB->getBuffer(), "");
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MemoryBufferRef NoData("", MB->getBufferIdentifier());
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MemoryBufferRef Same(MB->getBuffer(), MB->getBufferIdentifier());
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EXPECT_NE(Empty, Ref);
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EXPECT_NE(NoIdentifier, Ref);
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EXPECT_NE(NoData, Ref);
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EXPECT_EQ(Same, Ref);
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// Confirm NE when content matches but pointer identity does not.
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std::unique_ptr<MemoryBuffer> Copy(
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MemoryBuffer::getMemBufferCopy(Data, "id"));
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MemoryBufferRef CopyRef(*Copy);
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EXPECT_EQ(Ref.getBuffer(), CopyRef.getBuffer());
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EXPECT_NE(Ref, CopyRef);
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}
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} // end namespace
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