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//===- unittests/Rewrite/RewriteBufferTest.cpp - RewriteBuffer 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
//
//===----------------------------------------------------------------------===//
#include "clang/Rewrite/Core/RewriteBuffer.h"
#include "gtest/gtest.h"
using namespace llvm;
using namespace clang;
namespace {
static void tagRange(unsigned Offset, unsigned Len, StringRef tagName,
RewriteBuffer &Buf) {
std::string BeginTag;
raw_string_ostream(BeginTag) << '<' << tagName << '>';
std::string EndTag;
raw_string_ostream(EndTag) << "</" << tagName << '>';
Buf.InsertTextAfter(Offset, BeginTag);
Buf.InsertTextBefore(Offset+Len, EndTag);
}
TEST(RewriteBuffer, TagRanges) {
StringRef Input = "hello world";
const char *Output = "<outer><inner>hello</inner></outer> ";
RewriteBuffer Buf;
Buf.Initialize(Input);
StringRef RemoveStr = "world";
size_t Pos = Input.find(RemoveStr);
Buf.RemoveText(Pos, RemoveStr.size());
StringRef TagStr = "hello";
Pos = Input.find(TagStr);
tagRange(Pos, TagStr.size(), "outer", Buf);
tagRange(Pos, TagStr.size(), "inner", Buf);
std::string Result;
raw_string_ostream OS(Result);
Buf.write(OS);
OS.flush();
EXPECT_EQ(Output, Result);
}
} // anonymous namespace
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