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