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//===- llvm/unittest/Support/ConvertUTFTest.cpp - ConvertUTF tests --------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/ConvertUTF.h"
#include "gtest/gtest.h"
#include <string>
using namespace llvm;
TEST(ConvertUTFTest, ConvertUTF16LittleEndianToUTF8String) {
// Src is the look of disapproval.
static const char Src[] = "\xff\xfe\xa0\x0c_\x00\xa0\x0c";
ArrayRef<char> Ref(Src, sizeof(Src) - 1);
std::string Result;
bool Success = convertUTF16ToUTF8String(Ref, Result);
EXPECT_TRUE(Success);
std::string Expected("\xe0\xb2\xa0_\xe0\xb2\xa0");
EXPECT_EQ(Expected, Result);
}
TEST(ConvertUTFTest, ConvertUTF16BigEndianToUTF8String) {
// Src is the look of disapproval.
static const char Src[] = "\xfe\xff\x0c\xa0\x00_\x0c\xa0";
ArrayRef<char> Ref(Src, sizeof(Src) - 1);
std::string Result;
bool Success = convertUTF16ToUTF8String(Ref, Result);
EXPECT_TRUE(Success);
std::string Expected("\xe0\xb2\xa0_\xe0\xb2\xa0");
EXPECT_EQ(Expected, Result);
}
TEST(ConvertUTFTest, OddLengthInput) {
std::string Result;
bool Success = convertUTF16ToUTF8String(ArrayRef<char>("xxxxx", 5), Result);
EXPECT_FALSE(Success);
}
TEST(ConvertUTFTest, Empty) {
std::string Result;
bool Success = convertUTF16ToUTF8String(ArrayRef<char>(), Result);
EXPECT_TRUE(Success);
EXPECT_TRUE(Result.empty());
}
TEST(ConvertUTFTest, HasUTF16BOM) {
bool HasBOM = hasUTF16ByteOrderMark(ArrayRef<char>("\xff\xfe", 2));
EXPECT_TRUE(HasBOM);
HasBOM = hasUTF16ByteOrderMark(ArrayRef<char>("\xfe\xff", 2));
EXPECT_TRUE(HasBOM);
HasBOM = hasUTF16ByteOrderMark(ArrayRef<char>("\xfe\xff ", 3));
EXPECT_TRUE(HasBOM); // Don't care about odd lengths.
HasBOM = hasUTF16ByteOrderMark(ArrayRef<char>("\xfe\xff\x00asdf", 6));
EXPECT_TRUE(HasBOM);
HasBOM = hasUTF16ByteOrderMark(ArrayRef<char>());
EXPECT_FALSE(HasBOM);
HasBOM = hasUTF16ByteOrderMark(ArrayRef<char>("\xfe", 1));
EXPECT_FALSE(HasBOM);
}
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