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/*
* Copyright (C) 2012 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "wtf/StringExtras.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "wtf/text/CString.h"
#include "wtf/text/WTFString.h"
#include <limits>
namespace WTF {
template<typename IntegerType> struct PrintfFormatTrait { static const char format[]; };
template<> struct PrintfFormatTrait<short> { static const char format[]; };
const char PrintfFormatTrait<short>::format[] = "%hd";
template<> struct PrintfFormatTrait<int> { static const char format[]; };
const char PrintfFormatTrait<int>::format[] = "%d";
template<> struct PrintfFormatTrait<long> { static const char format[]; };
const char PrintfFormatTrait<long>::format[] = "%ld";
template<> struct PrintfFormatTrait<long long> { static const char format[]; };
#if OS(WIN)
const char PrintfFormatTrait<long long>::format[] = "%I64i";
#else
const char PrintfFormatTrait<long long>::format[] = "%lli";
#endif // OS(WIN)
template<> struct PrintfFormatTrait<unsigned short> { static const char format[]; };
const char PrintfFormatTrait<unsigned short>::format[] = "%hu";
template<> struct PrintfFormatTrait<unsigned> { static const char format[]; };
const char PrintfFormatTrait<unsigned>::format[] = "%u";
template<> struct PrintfFormatTrait<unsigned long> { static const char format[]; };
const char PrintfFormatTrait<unsigned long>::format[] = "%lu";
template<> struct PrintfFormatTrait<unsigned long long> { static const char format[]; };
#if OS(WIN)
const char PrintfFormatTrait<unsigned long long>::format[] = "%I64u";
#else
const char PrintfFormatTrait<unsigned long long>::format[] = "%llu";
#endif // OS(WIN)
// FIXME: use snprintf from StringExtras.h
template<typename IntegerType>
void testBoundaries()
{
const unsigned bufferSize = 256;
Vector<char, bufferSize> buffer;
buffer.resize(bufferSize);
const IntegerType min = std::numeric_limits<IntegerType>::min();
CString minStringData = String::number(min).latin1();
snprintf(buffer.data(), bufferSize, PrintfFormatTrait<IntegerType>::format, min);
EXPECT_STREQ(buffer.data(), minStringData.data());
const IntegerType max = std::numeric_limits<IntegerType>::max();
CString maxStringData = String::number(max).latin1();
snprintf(buffer.data(), bufferSize, PrintfFormatTrait<IntegerType>::format, max);
EXPECT_STREQ(buffer.data(), maxStringData.data());
}
template<typename IntegerType>
void testNumbers()
{
const unsigned bufferSize = 256;
Vector<char, bufferSize> buffer;
buffer.resize(bufferSize);
for (int i = -100; i < 100; ++i) {
const IntegerType number = static_cast<IntegerType>(i);
CString numberStringData = String::number(number).latin1();
snprintf(buffer.data(), bufferSize, PrintfFormatTrait<IntegerType>::format, number);
EXPECT_STREQ(buffer.data(), numberStringData.data());
}
}
TEST(StringExtraTest, IntegerToStringConversionSignedIntegerBoundaries)
{
testBoundaries<short>();
testBoundaries<int>();
testBoundaries<long>();
testBoundaries<long long>();
}
TEST(StringExtraTest, IntegerToStringConversionSignedIntegerRegularNumbers)
{
testNumbers<short>();
testNumbers<int>();
testNumbers<long>();
testNumbers<long long>();
}
TEST(StringExtraTest, IntegerToStringConversionUnsignedIntegerBoundaries)
{
testBoundaries<unsigned short>();
testBoundaries<unsigned>();
testBoundaries<unsigned long>();
testBoundaries<unsigned long long>();
}
TEST(StringExtraTest, IntegerToStringConversionUnsignedIntegerRegularNumbers)
{
testNumbers<unsigned short>();
testNumbers<unsigned>();
testNumbers<unsigned long>();
testNumbers<unsigned long long>();
}
} // namespace WTF