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	This is to support parsing UTF16 response files in LLVM/lib/Option for lld and clang. Reviewers: hans Differential Revision: http://llvm-reviews.chandlerc.com/D1138 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186426 91177308-0d34-0410-b5e6-96231b3b80d8
		
			
				
	
	
		
			66 lines
		
	
	
		
			2.1 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			66 lines
		
	
	
		
			2.1 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
//===- llvm/unittest/Support/ConvertUTFTest.cpp - ConvertUTF tests --------===//
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//
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//                     The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/ConvertUTF.h"
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#include "gtest/gtest.h"
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#include <string>
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using namespace llvm;
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TEST(ConvertUTFTest, ConvertUTF16LittleEndianToUTF8String) {
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  // Src is the look of disapproval.
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  static const char Src[] = "\xff\xfe\xa0\x0c_\x00\xa0\x0c";
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  ArrayRef<char> Ref(Src, sizeof(Src) - 1);
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  std::string Result;
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  bool Success = convertUTF16ToUTF8String(Ref, Result);
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  EXPECT_TRUE(Success);
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  std::string Expected("\xe0\xb2\xa0_\xe0\xb2\xa0");
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  EXPECT_EQ(Expected, Result);
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}
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TEST(ConvertUTFTest, ConvertUTF16BigEndianToUTF8String) {
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  // Src is the look of disapproval.
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  static const char Src[] = "\xfe\xff\x0c\xa0\x00_\x0c\xa0";
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  ArrayRef<char> Ref(Src, sizeof(Src) - 1);
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  std::string Result;
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  bool Success = convertUTF16ToUTF8String(Ref, Result);
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  EXPECT_TRUE(Success);
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  std::string Expected("\xe0\xb2\xa0_\xe0\xb2\xa0");
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  EXPECT_EQ(Expected, Result);
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}
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TEST(ConvertUTFTest, OddLengthInput) {
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  std::string Result;
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  bool Success = convertUTF16ToUTF8String(ArrayRef<char>("xxxxx", 5), Result);
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  EXPECT_FALSE(Success);
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}
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TEST(ConvertUTFTest, Empty) {
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  std::string Result;
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  bool Success = convertUTF16ToUTF8String(ArrayRef<char>(), Result);
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  EXPECT_TRUE(Success);
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  EXPECT_TRUE(Result.empty());
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}
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TEST(ConvertUTFTest, HasUTF16BOM) {
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  bool HasBOM = hasUTF16ByteOrderMark(ArrayRef<char>("\xff\xfe", 2));
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  EXPECT_TRUE(HasBOM);
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  HasBOM = hasUTF16ByteOrderMark(ArrayRef<char>("\xfe\xff", 2));
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  EXPECT_TRUE(HasBOM);
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  HasBOM = hasUTF16ByteOrderMark(ArrayRef<char>("\xfe\xff ", 3));
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  EXPECT_TRUE(HasBOM); // Don't care about odd lengths.
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  HasBOM = hasUTF16ByteOrderMark(ArrayRef<char>("\xfe\xff\x00asdf", 6));
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  EXPECT_TRUE(HasBOM);
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  HasBOM = hasUTF16ByteOrderMark(ArrayRef<char>());
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  EXPECT_FALSE(HasBOM);
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  HasBOM = hasUTF16ByteOrderMark(ArrayRef<char>("\xfe", 1));
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  EXPECT_FALSE(HasBOM);
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}
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