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etl/test/test_format.cpp
John Wellbelove ee688e21e6 Fixed issues with unsigned to signed conversion. 
Added format.h to VS2022 project.
Added format.h to syntax check CMakeLists.txt
2025-12-18 08:59:42 +00:00

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/******************************************************************************
The MIT License(MIT)
Embedded Template Library.
https://github.com/ETLCPP/etl
https://www.etlcpp.com
Copyright(c) 2025 BMW AG
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files(the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions :
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
******************************************************************************/
#include "unit_test_framework.h"
#include "etl/format.h"
#include "etl/iterator.h"
#if ETL_USING_CPP11
namespace
{
using iterator = etl::back_insert_iterator<etl::istring>;
template<class... Args>
etl::istring& test_format(etl::istring& s, etl::format_string<Args...> fmt, Args&&... args)
{
(void) etl::format_to(s, fmt, etl::forward<Args>(args)...);
return s;
}
SUITE(test_format)
{
//*************************************************************************
TEST(test_empty)
{
etl::string<100> s;
const char* result = etl::format_to(s, "");
CHECK_EQUAL(s.cbegin(), result);
CHECK_EQUAL("", s);
}
//*************************************************************************
TEST(test_format)
{
etl::string<100> s;
const char* result = etl::format_to(s, "abc");
CHECK_EQUAL(s.cbegin() + 3, result);
CHECK_EQUAL("abc", s);
}
//*************************************************************************
TEST(test_format_int)
{
etl::string<100> s;
CHECK_EQUAL("1", test_format(s, "{}", 1));
CHECK_EQUAL("123", test_format(s, "{}", 123));
CHECK_EQUAL("4123", test_format(s, "{}", 4123));
CHECK_EQUAL("1048962123", test_format(s, "{}", 1048962123));
CHECK_EQUAL("1 2", test_format(s, "{} {}", 1, 2));
CHECK_EQUAL("-123", test_format(s, "{}", -123));
CHECK_EQUAL("-314748364", test_format(s, "{}", (int)-314748364));
CHECK_EQUAL("2147483647", test_format(s, "{}", INT32_MAX));
CHECK_EQUAL("-2147483648", test_format(s, "{}", INT32_MIN));
CHECK_EQUAL("0", test_format(s, "{}", 0));
CHECK_EQUAL("-1", test_format(s, "{}", -1));
}
//*************************************************************************
TEST(test_format_unsigned_int)
{
etl::string<100> s;
CHECK_EQUAL("0", test_format(s, "{}", static_cast<unsigned int>(0U)));
CHECK_EQUAL("1", test_format(s, "{}", static_cast<unsigned int>(1U)));
CHECK_EQUAL("12345678", test_format(s, "{}", static_cast<unsigned int>(12345678U)));
CHECK_EQUAL("4123456780", test_format(s, "{}", static_cast<unsigned int>(4123456780U)));
}
//*************************************************************************
TEST(test_format_long_long_int)
{
etl::string<100> s;
CHECK_EQUAL("-1", test_format(s, "{}", static_cast<long long int>(-1LL)));
CHECK_EQUAL("0", test_format(s, "{}", static_cast<long long int>(0LL)));
CHECK_EQUAL("1", test_format(s, "{}", static_cast<long long int>(1LL)));
CHECK_EQUAL("-12345678", test_format(s, "{}", static_cast<long long int>(-12345678LL)));
CHECK_EQUAL("-4123456780", test_format(s, "{}", static_cast<long long int>(-4123456780LL)));
CHECK_EQUAL("-123456781234", test_format(s, "{}", static_cast<long long int>(-123456781234LL)));
CHECK_EQUAL("-412345678012", test_format(s, "{}", static_cast<long long int>(-412345678012LL)));
CHECK_EQUAL("12345678", test_format(s, "{}", static_cast<long long int>(12345678LL)));
CHECK_EQUAL("4123456780", test_format(s, "{}", static_cast<long long int>(4123456780LL)));
}
//*************************************************************************
TEST(test_format_unsigned_long_long_int)
{
etl::string<100> s;
CHECK_EQUAL("0", test_format(s, "{}", static_cast<unsigned long long int>(0LL)));
CHECK_EQUAL("1", test_format(s, "{}", static_cast<unsigned long long int>(1LL)));
CHECK_EQUAL("12345678", test_format(s, "{}", static_cast<unsigned long long int>(12345678LL)));
CHECK_EQUAL("4123456780", test_format(s, "{}", static_cast<unsigned long long int>(4123456780LL)));
CHECK_EQUAL("18446744073709551615", test_format(s, "{}", static_cast<unsigned long long int>(18446744073709551615ULL)));
CHECK_EQUAL("1311768467463790320", test_format(s, "{}", static_cast<unsigned long long int>(0x123456789ABCDEF0ULL)));
}
//*************************************************************************
TEST(test_format_other_int)
{
etl::string<100> s;
CHECK_EQUAL("34", test_format(s, "{}", static_cast<uint8_t>(34)));
CHECK_EQUAL("-14", test_format(s, "{}", static_cast<int8_t>(-14)));
CHECK_EQUAL("6534", test_format(s, "{}", static_cast<uint16_t>(6534)));
CHECK_EQUAL("-9414", test_format(s, "{}", static_cast<int16_t>(-9414)));
CHECK_EQUAL("236534", test_format(s, "{}", static_cast<uint32_t>(236534)));
CHECK_EQUAL("-6759414", test_format(s, "{}", static_cast<int32_t>(-6759414)));
}
//*************************************************************************
TEST(test_format_float)
{
etl::string<100> s;
CHECK_EQUAL("1.0", test_format(s, "{}", 1.0f));
CHECK_EQUAL("1.234567", test_format(s, "{}", 1.234567f));
CHECK_EQUAL("1.234567", test_format(s, "{}", 1.2345678f));
CHECK_EQUAL("1.125", test_format(s, "{}", 1.125f));
}
//*************************************************************************
TEST(test_format_double)
{
etl::string<100> s;
CHECK_EQUAL("1.0", test_format(s, "{}", 1.0));
CHECK_EQUAL("1.234564", test_format(s, "{}", 1.234564));
CHECK_EQUAL("1.234567", test_format(s, "{}", 1.2345678));
CHECK_EQUAL("1.5", test_format(s, "{}", 1.5));
}
//*************************************************************************
TEST(test_format_long_double)
{
etl::string<100> s;
CHECK_EQUAL("1.0", test_format(s, "{}", 1.0l));
auto& result = test_format(s, "{}", 1.234567l);
CHECK("1.234567" == result || "1.234566" == result);
CHECK_EQUAL("1.234567", test_format(s, "{}", 1.2345678l));
CHECK_EQUAL("1.25", test_format(s, "{}", 1.25l));
}
//*************************************************************************
TEST(test_format_float_presentation)
{
etl::string<100> s;
CHECK_EQUAL("1.000000e+00", test_format(s, "{:e}", 1.0f));
CHECK_EQUAL("1.125000E+00", test_format(s, "{:E}", 1.125f));
CHECK_EQUAL("-2.533324e-05", test_format(s, "{:e}", -0.00002533324f));
CHECK_EQUAL("-2.500000e+11", test_format(s, "{:e}", -250000000000.0f));
CHECK_EQUAL("1.000000", test_format(s, "{:f}", 1.0f));
CHECK_EQUAL("1.125000", test_format(s, "{:F}", 1.125f));
CHECK_EQUAL("1.000000", test_format(s, "{:g}", 1.0f));
CHECK_EQUAL("1.125000", test_format(s, "{:G}", 1.125f));
CHECK_EQUAL("1.000000e+10", test_format(s, "{:g}", 10000000000.0f));
CHECK_EQUAL("1.000000E+10", test_format(s, "{:G}", 10000000000.0f));
CHECK_EQUAL("nan", test_format(s, "{}", NAN));
CHECK_EQUAL("nan", test_format(s, "{:e}", NAN));
CHECK_EQUAL("NAN", test_format(s, "{:E}", NAN));
CHECK_EQUAL("nan", test_format(s, "{:f}", NAN));
CHECK_EQUAL("NAN", test_format(s, "{:F}", NAN));
CHECK_EQUAL("nan", test_format(s, "{:g}", NAN));
CHECK_EQUAL("NAN", test_format(s, "{:0.3G}", NAN));
CHECK_EQUAL("inf", test_format(s, "{}", INFINITY));
CHECK_EQUAL("inf", test_format(s, "{:e}", INFINITY));
CHECK_EQUAL("INF", test_format(s, "{:E}", INFINITY));
CHECK_EQUAL("inf", test_format(s, "{:f}", INFINITY));
CHECK_EQUAL("INF", test_format(s, "{:F}", INFINITY));
CHECK_EQUAL("inf", test_format(s, "{:g}", INFINITY));
CHECK_EQUAL("INF", test_format(s, "{:0.3G}", INFINITY));
CHECK_EQUAL("0x1.8p+0", test_format(s, "{:a}", 1.5f));
CHECK_EQUAL("0X1.4CCCCCCCCCP+0", test_format(s, "{:A}", 1.3l));
CHECK_EQUAL("0x2.49fp+4", test_format(s, "{:a}", 150000.0));
CHECK_EQUAL("0x1.92a738p-5", test_format(s, "{:a}", 0.0000015f));
CHECK_EQUAL("0x1.6345785d8ap+e", test_format(s, "{:a}", 100000000000000000.l));
}
//*************************************************************************
TEST(test_format_char_array)
{
etl::string<100> s;
CHECK_EQUAL("s", test_format(s, "{}", "s"));
CHECK_EQUAL("abcd", test_format(s, "{}", "abcd"));
}
//*************************************************************************
TEST(test_format_char)
{
etl::string<100> s;
CHECK_EQUAL("a s b", test_format(s, "a {} b", 's'));
CHECK_EQUAL("a s b", test_format(s, "a {:c} b", 's'));
CHECK_EQUAL("a 's' b", test_format(s, "a {:?} b", 's'));
CHECK_EQUAL("a \t b", test_format(s, "a {} b", '\t'));
CHECK_EQUAL("a '\\t' b", test_format(s, "a {:?} b", '\t'));
CHECK_EQUAL("a '\\n' b", test_format(s, "a {:?} b", '\n'));
CHECK_EQUAL("a '\\r' b", test_format(s, "a {:?} b", '\r'));
CHECK_EQUAL("a '\\\"' b", test_format(s, "a {:?} b", '"'));
CHECK_EQUAL("a '\\'' b", test_format(s, "a {:?} b", '\''));
CHECK_EQUAL("a '\\\\' b", test_format(s, "a {:?} b", '\\'));
CHECK_EQUAL("a '\\\\' b", test_format(s, "a {:?} b", '\\'));
CHECK_EQUAL("a 97 b", test_format(s, "a {:d} b", 'a'));
CHECK_EQUAL("a 61 b", test_format(s, "a {:X} b", 'a'));
CHECK_EQUAL("a 61 b", test_format(s, "a {:x} b", 'a'));
CHECK_EQUAL("a 0x61 b", test_format(s, "a {:#x} b", 'a'));
}
//*************************************************************************
TEST(test_format_bool)
{
etl::string<100> s;
CHECK_EQUAL("1false2true3", test_format(s, "1{}2{}3", false, true));
CHECK_EQUAL("true", test_format(s, "{:s}", true));
CHECK_EQUAL("1", test_format(s, "{:d}", true));
CHECK_EQUAL("1", test_format(s, "{:X}", true));
CHECK_EQUAL("01", test_format(s, "{:#o}", true));
CHECK_EQUAL(" true", test_format(s, "{:10}", true));
}
//*************************************************************************
TEST(test_format_string_view)
{
etl::string<100> s;
etl::string_view sv("data1");
CHECK_EQUAL("data1", test_format(s, "{}", sv));
CHECK_EQUAL("data1", test_format(s, "{:s}", sv));
CHECK_THROW(test_format(s, "{:d}", sv), etl::bad_format_string_exception);
CHECK_EQUAL("data1 ", test_format(s, "{:10s}", sv));
CHECK_EQUAL("data1 ", test_format(s, "{:<10s}", sv));
CHECK_EQUAL(" data1", test_format(s, "{:>10s}", sv));
CHECK_EQUAL(" data1 ", test_format(s, "{:^10s}", sv));
CHECK_EQUAL("data1", test_format(s, "{:3}", sv));
CHECK_EQUAL("dat", test_format(s, "{:.3s}", sv));
CHECK_EQUAL("dat", test_format(s, "{:^.3s}", sv));
CHECK_EQUAL(". dat !", test_format(s, ".{:^8.3s}!", sv));
CHECK_EQUAL("^dat $", test_format(s, "^{:8.3s}$", sv));
}
//*************************************************************************
TEST(test_format_string_view_escaped)
{
etl::string<100> s;
etl::string_view sv("data1\n");
CHECK_EQUAL("\"data1\\n\"", test_format(s, "{:?}", sv));
}
//*************************************************************************
TEST(test_format_chars)
{
etl::string<100> s;
const char* chars = "data1";
CHECK_EQUAL("data1", test_format(s, "{}", chars));
CHECK_EQUAL("data1", test_format(s, "{:s}", chars));
CHECK_THROW(test_format(s, "{:d}", chars), etl::bad_format_string_exception);
CHECK_EQUAL("data1 ", test_format(s, "{:10s}", chars));
CHECK_EQUAL("data1 ", test_format(s, "{:<10s}", chars));
CHECK_EQUAL(" data1", test_format(s, "{:>10s}", chars));
CHECK_EQUAL(" data1 ", test_format(s, "{:^10s}", chars));
CHECK_EQUAL("data1", test_format(s, "{:3}", chars));
CHECK_EQUAL("dat", test_format(s, "{:.3s}", chars));
CHECK_EQUAL("dat", test_format(s, "{:^.3s}", chars));
CHECK_EQUAL(". dat !", test_format(s, ".{:^8.3s}!", chars));
CHECK_EQUAL("^dat $", test_format(s, "^{:8.3s}$", chars));
}
//*************************************************************************
TEST(test_format_chars_escaped)
{
etl::string<100> s;
const char* chars = "data2\n";
CHECK_EQUAL("\"data2\\n\"", test_format(s, "{:?}", chars));
}
//*************************************************************************
TEST(test_format_pointer)
{
etl::string<100> s;
void* p = nullptr;
CHECK_EQUAL("0x0", test_format(s, "{}", p));
CHECK_EQUAL("0x0", test_format(s, "{:p}", p));
CHECK_EQUAL("0X0", test_format(s, "{:P}", p));
if (sizeof(uintptr_t) == 8)
{
p = reinterpret_cast<void*>(0x123456789abcdef0ULL);
CHECK_EQUAL("0x123456789abcdef0", test_format(s, "{:p}", p));
CHECK_EQUAL("0X123456789ABCDEF0", test_format(s, "{:P}", p));
}
else if (sizeof(uintptr_t) == 4)
{
p = reinterpret_cast<void*>(0x1abcdef0ULL);
CHECK_EQUAL("0x1abcdef0", test_format(s, "{:p}", p));
CHECK_EQUAL("0X1ABCDEF0", test_format(s, "{:P}", p));
}
}
//*************************************************************************
TEST(test_format_limit)
{
etl::string<10> s;
CHECK_EQUAL("abcdefghij", test_format(s, "abcdefghijkl"));
CHECK_EQUAL("abcdefgh12", test_format(s, "abcdefgh{}", 123));
}
//*************************************************************************
TEST(test_format_escape)
{
etl::string<100> s;
CHECK_EQUAL("abc{def", test_format(s, "abc{{def"));
CHECK_EQUAL("}abc", test_format(s, "}}abc"));
}
//*************************************************************************
TEST(test_format_invalid)
{
etl::string<100> s;
CHECK_THROW(test_format(s, "a{b}", 1), etl::bad_format_string_exception); // bad format index spec
// goal: rejected at compile time on C++20, error on <= C++17
CHECK_THROW(test_format(s, "a{b"), etl::bad_format_string_exception); // closing brace missing
// goal: rejected at compile time on C++20, error on <= C++17
CHECK_THROW(test_format(s, "a{b}"), etl::bad_format_string_exception); // arg missing
// goal: rejected at compile time on C++20, error on <= C++17
CHECK_THROW(test_format(s, "a}b"), etl::bad_format_string_exception); // bad format: only escaped }} allowed
// goal: rejected at compile time on C++20, error on <= C++17
CHECK_EQUAL("123", test_format(s, "{:}", 123)); // valid
CHECK_THROW(test_format(s, "{::}", 123), etl::bad_format_string_exception); // bad format spec
CHECK_THROW(test_format(s, "{1}", 123), etl::bad_format_string_exception); // bad index
}
//*************************************************************************
TEST(test_format_indexed)
{
etl::string<100> s;
CHECK_EQUAL("34 56", test_format(s, "{0} {1}", 34, 56));
CHECK_EQUAL("56 34", test_format(s, "{1} {0}", 34, 56));
CHECK_EQUAL("134 134", test_format(s, "{0} {0}", 134));
CHECK_EQUAL("a b c d e f g h i j k l m n", test_format(s, "{0} {1} {2} {3} {4} {5} {6} {7} {8} {9} {10} {11} {12} {13}", 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n'));
}
//*************************************************************************
TEST(test_formatted_size)
{
CHECK_EQUAL(0, etl::formatted_size(""));
CHECK_EQUAL(0, etl::formatted_size("{}", ""));
CHECK_EQUAL(5, etl::formatted_size("xyz{}", 12));
CHECK_EQUAL(3, etl::formatted_size("{}", "abc"));
}
//*************************************************************************
TEST(test_iterator)
{
etl::string<100> s;
etl::istring::iterator result = etl::format_to(s.begin(), "{0} {1}", 34, 56);
s.uninitialized_resize(result - s.begin());
CHECK_EQUAL("34 56", s);
s.clear();
etl::format_to(iterator(s), "");
CHECK_EQUAL("", s);
s.clear();
etl::format_to(iterator(s), "{0} {1}", 65, 34);
CHECK_EQUAL("65 34", s);
s = "abcdefghij";
etl::format_to_n(s.begin(), 3, "xy{}", 123);
CHECK_EQUAL("xy1defghij", s);
}
//*************************************************************************
TEST(test_format_spec_fill_and_align)
{
etl::string<100> s;
CHECK_EQUAL("a 34", test_format(s, "a{:5}", 34));
CHECK_EQUAL("a34", test_format(s, "a{:1}", 34));
CHECK_EQUAL("a34", test_format(s, "a{:2}", 34));
CHECK_EQUAL(" 34", test_format(s, "{:>4}", 34));
CHECK_EQUAL(" 34 ", test_format(s, "{:^4}", 34));
CHECK_EQUAL(" 34 ", test_format(s, "{:^5}", 34));
CHECK_EQUAL(" -65 ", test_format(s, "{:^5}", -65));
CHECK_EQUAL("34 ", test_format(s, "{:<4}", 34));
CHECK_THROW(test_format(s, "a{:*5}", 34), etl::bad_format_string_exception);
CHECK_EQUAL("a*34**", test_format(s, "a{:*^5}", 34));
CHECK_EQUAL("a*34**", test_format(s, "a{:*^5}", static_cast<unsigned int>(34)));
CHECK_EQUAL("a***-341234567890****", test_format(s, "a{:*^20}", static_cast<long long int>(-341234567890)));
CHECK_EQUAL("a****341234567890****", test_format(s, "a{:*^20}", static_cast<unsigned long long int>(341234567890)));
CHECK_EQUAL(" x ", test_format(s, "{: ^20}", 'x'));
CHECK_EQUAL("x ", test_format(s, "{:20}", 'x'));
CHECK_EQUAL(" x", test_format(s, "{:>20}", 'x'));
CHECK_EQUAL("x ", test_format(s, "{:<20}", 'x'));
}
//*************************************************************************
TEST(test_format_spec_sign)
{
etl::string<100> s;
CHECK_EQUAL("34", test_format(s, "{:-}", 34));
CHECK_EQUAL("-34", test_format(s, "{:-}", -34));
CHECK_EQUAL("-34", test_format(s, "{:+}", -34));
CHECK_EQUAL("+34", test_format(s, "{:+}", 34));
CHECK_EQUAL("+0", test_format(s, "{:+}", 0));
CHECK_EQUAL("0", test_format(s, "{:-}", 0));
CHECK_EQUAL("210", test_format(s, "{:-}", 210));
CHECK_EQUAL("-210", test_format(s, "{:-}", -210));
CHECK_EQUAL(" 0", test_format(s, "{: }", 0));
CHECK_EQUAL(" 546", test_format(s, "{: }", 546));
CHECK_EQUAL("-546", test_format(s, "{: }", -546));
}
//*************************************************************************
TEST(test_format_int_presentation)
{
etl::string<100> s;
CHECK_EQUAL("134", test_format(s, "{:d}", 134));
CHECK_EQUAL("3f4", test_format(s, "{:x}", 0x3f4));
CHECK_EQUAL("123456789abcdef0", test_format(s, "{:x}", 0x123456789abcdef0ULL));
CHECK_EQUAL("0x3f4", test_format(s, "{:#x}", 0x3f4));
CHECK_EQUAL("3F4", test_format(s, "{:X}", 0x3f4));
CHECK_EQUAL("0X3F4", test_format(s, "{:#X}", 0x3f4));
CHECK_EQUAL("34", test_format(s, "{:o}", 034));
CHECK_EQUAL("034", test_format(s, "{:#o}", 034));
CHECK_EQUAL("1010", test_format(s, "{:b}", 0b1010));
CHECK_EQUAL("0b1010", test_format(s, "{:#b}", 0b1010));
CHECK_EQUAL("1010", test_format(s, "{:B}", 0b1010));
CHECK_EQUAL("0B1010", test_format(s, "{:#B}", 0b1010));
CHECK_EQUAL("-0B1010", test_format(s, "{:#B}", -0b1010));
CHECK_EQUAL("C", test_format(s, "{:c}", 67));
CHECK_EQUAL("00067", test_format(s, "{:05d}", 67));
CHECK_EQUAL("+00067", test_format(s, "{:+05d}", 67));
CHECK_EQUAL("+0X00EF1", test_format(s, "{:+#05X}", 0xEF1));
CHECK_THROW(test_format(s, "{:+#05.5X}", 0xEF1), etl::bad_format_string_exception);
}
}
}
#endif
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