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#define BOOST_LEXICAL_CAST_ASSUME_C_LOCALE |
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#include "integer_to_string.hh" |
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#include "string_piece.hh" |
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#define BOOST_TEST_MODULE IntegerToStringTest |
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#include <boost/test/unit_test.hpp> |
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#include <boost/lexical_cast.hpp> |
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#include <limits> |
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namespace util { |
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namespace { |
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template <class T> void TestValue(const T value) { |
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char buf[ToStringBuf<T>::kBytes]; |
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StringPiece result(buf, ToString(value, buf) - buf); |
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BOOST_REQUIRE_GE(static_cast<std::size_t>(ToStringBuf<T>::kBytes), result.size()); |
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if (value) { |
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BOOST_CHECK_EQUAL(boost::lexical_cast<std::string>(value), result); |
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} else { |
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BOOST_CHECK(result == "0x0" || result == "0"); |
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} |
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} |
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template <class T> void TestCorners() { |
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TestValue(std::numeric_limits<T>::min()); |
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TestValue(std::numeric_limits<T>::max()); |
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TestValue((T)0); |
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TestValue((T)-1); |
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TestValue((T)1); |
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} |
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BOOST_AUTO_TEST_CASE(Corners) { |
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TestCorners<uint16_t>(); |
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TestCorners<uint32_t>(); |
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TestCorners<uint64_t>(); |
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TestCorners<int16_t>(); |
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TestCorners<int32_t>(); |
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TestCorners<int64_t>(); |
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TestCorners<const void*>(); |
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} |
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template <class T> void TestAll() { |
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for (T i = std::numeric_limits<T>::min(); i < std::numeric_limits<T>::max(); ++i) { |
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TestValue(i); |
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} |
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TestValue(std::numeric_limits<T>::max()); |
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} |
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BOOST_AUTO_TEST_CASE(Short) { |
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TestAll<uint16_t>(); |
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TestAll<int16_t>(); |
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} |
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template <class T> void Test10s() { |
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for (T i = 1; i < std::numeric_limits<T>::max() / 10; i *= 10) { |
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TestValue(i); |
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TestValue(i - 1); |
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TestValue(i + 1); |
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} |
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} |
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BOOST_AUTO_TEST_CASE(Tens) { |
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Test10s<uint64_t>(); |
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Test10s<int64_t>(); |
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Test10s<uint32_t>(); |
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Test10s<int32_t>(); |
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} |
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BOOST_AUTO_TEST_CASE(Pointers) { |
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for (uintptr_t i = 1; i < std::numeric_limits<uintptr_t>::max() / 10; i *= 10) { |
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TestValue((const void*)i); |
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} |
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for (uintptr_t i = 0; i < 256; ++i) { |
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TestValue((const void*)i); |
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TestValue((const void*)(i + 0xf00)); |
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} |
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} |
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}} |
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