//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef TEST_STD_UTILITIES_FORMAT_FORMAT_RANGE_FORMAT_RANGE_FMTSET_FORMAT_FUNCTIONS_TESTS_H
#define TEST_STD_UTILITIES_FORMAT_FORMAT_RANGE_FORMAT_RANGE_FMTSET_FORMAT_FUNCTIONS_TESTS_H
#include <algorithm>
#include <format>
#include <set>
#include <tuple>
#include <unordered_set>
#include <utility>
#include "format.functions.common.h"
#include "make_string.h"
#include "platform_support.h" // locale name macros
#include "test_macros.h"
//
// Char
//
template <class CharT, class TestFunction, class ExceptionTest>
void test_char_default(TestFunction check, ExceptionTest check_exception) {
std::set input{CharT('a'), CharT('c'), CharT('b')}; // input not sorted.
// Note when no range-underlying-spec is present the char is escaped,
check(SV("{'a', 'b', 'c'}"), SV("{}"), input);
check(SV("{'a', 'b', 'c'}^42"), SV("{}^42"), input);
check(SV("{'a', 'b', 'c'}^42"), SV("{:}^42"), input);
// when one is present there is no escaping,
check(SV("{a, b, c}"), SV("{::}"), input);
check(SV("{a, b, c}"), SV("{::<}"), input);
// unless forced by the type specifier.
check(SV("{'a', 'b', 'c'}"), SV("{::?}"), input);
check(SV("{'a', 'b', 'c'}"), SV("{::<?}"), input);
// ***** underlying has no format-spec
// *** align-fill & width ***
check(SV("{'a', 'b', 'c'} "), SV("{:20}"), input);
check(SV("{'a', 'b', 'c'}*****"), SV("{:*<20}"), input);
check(SV("__{'a', 'b', 'c'}___"), SV("{:_^20}"), input);
check(SV("#####{'a', 'b', 'c'}"), SV("{:#>20}"), input);
check(SV("{'a', 'b', 'c'} "), SV("{:{}}"), input, 20);
check(SV("{'a', 'b', 'c'}*****"), SV("{:*<{}}"), input, 20);
check(SV("__{'a', 'b', 'c'}___"), SV("{:_^{}}"), input, 20);
check(SV("#####{'a', 'b', 'c'}"), SV("{:#>{}}"), input, 20);
check_exception("The format string contains an invalid escape sequence", SV("{:}<}"), input);
check_exception("The fill option contains an invalid value", SV("{:{<}"), input);
// *** sign ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:-}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{:+}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{: }"), input);
// *** alternate form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:#}"), input);
// *** zero-padding ***
check_exception("The width option should not have a leading zero", SV("{:0}"), input);
// *** precision ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:.}"), input);
// *** locale-specific form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:L}"), input);
// *** n
check(SV("__'a', 'b', 'c'___"), SV("{:_^18n}"), input);
// *** type ***
check_exception("Type m requires a pair or a tuple with two elements", SV("{:m}"), input);
// ***** Only underlying has a format-spec
check(SV("{a , b , c }"), SV("{::4}"), input);
check(SV("{a***, b***, c***}"), SV("{::*<4}"), input);
check(SV("{_a__, _b__, _c__}"), SV("{::_^4}"), input);
check(SV("{:::a, :::b, :::c}"), SV("{:::>4}"), input);
check(SV("{a , b , c }"), SV("{::{}}"), input, 4);
check(SV("{a***, b***, c***}"), SV("{::*<{}}"), input, 4);
check(SV("{_a__, _b__, _c__}"), SV("{::_^{}}"), input, 4);
check(SV("{:::a, :::b, :::c}"), SV("{:::>{}}"), input, 4);
check_exception("The format string contains an invalid escape sequence", SV("{::}<}"), input);
check_exception("The fill option contains an invalid value", SV("{::{<}"), input);
// *** sign ***
check_exception("The format specifier for a character does not allow the sign option", SV("{::-}"), input);
check_exception("The format specifier for a character does not allow the sign option", SV("{::+}"), input);
check_exception("The format specifier for a character does not allow the sign option", SV("{:: }"), input);
check(SV("{97, 98, 99}"), SV("{::-d}"), input);
check(SV("{+97, +98, +99}"), SV("{::+d}"), input);
check(SV("{ 97, 98, 99}"), SV("{:: d}"), input);
// *** alternate form ***
check_exception("The format specifier for a character does not allow the alternate form option", SV("{::#}"), input);
check(SV("{0x61, 0x62, 0x63}"), SV("{::#x}"), input);
// *** zero-padding ***
check_exception("The format specifier for a character does not allow the zero-padding option", SV("{::05}"), input);
check(SV("{00141, 00142, 00143}"), SV("{::05o}"), input);
// *** precision ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{::.}"), input);
// *** locale-specific form ***
check(SV("{a, b, c}"), SV("{::L}"), input);
// *** type ***
for (std::basic_string_view<CharT> fmt : fmt_invalid_nested_types<CharT>("bBcdoxX?"))
check_exception("The type option contains an invalid value for a character formatting argument", fmt, input);
// ***** Both have a format-spec
check(SV("^^{:a, :b, :c}^^^"), SV("{:^^17::>2}"), input);
check(SV("^^{:a, :b, :c}^^^"), SV("{:^^{}::>2}"), input, 17);
check(SV("^^{:a, :b, :c}^^^"), SV("{:^^{}::>{}}"), input, 17, 2);
check_exception(
"The argument index value is too large for the number of arguments supplied", SV("{:^^{}::>2}"), input);
check_exception(
"The argument index value is too large for the number of arguments supplied", SV("{:^^{}::>{}}"), input, 17);
}
// A set can be written as a string, based on
// [tab:formatter.range.type]
// s T shall be charT. ...
// This does not seem very useful, but it is allowed.
template <class CharT, class TestFunction, class ExceptionTest>
void test_char_string(TestFunction check, [[maybe_unused]] ExceptionTest check_exception) {
std::set input{CharT('a'), CharT('c'), CharT('b')}; // input not sorted.
check(SV("abc"), SV("{:s}"), input);
// ***** underlying has no format-spec
// *** align-fill & width ***
check(SV("abc "), SV("{:6s}"), input);
check(SV("abc***"), SV("{:*<6s}"), input);
check(SV("_abc__"), SV("{:_^6s}"), input);
check(SV("###abc"), SV("{:#>6s}"), input);
check(SV("abc "), SV("{:{}s}"), input, 6);
check(SV("abc***"), SV("{:*<{}s}"), input, 6);
check(SV("_abc__"), SV("{:_^{}s}"), input, 6);
check(SV("###abc"), SV("{:#>{}s}"), input, 6);
check_exception("The format string contains an invalid escape sequence", SV("{:}<s}"), input);
check_exception("The fill option contains an invalid value", SV("{:{<s}"), input);
// *** sign ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:-s}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{:+s}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{: s}"), input);
// *** alternate form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:#s}"), input);
// *** zero-padding ***
check_exception("The width option should not have a leading zero", SV("{:0s}"), input);
// *** precision ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:.s}"), input);
// *** locale-specific form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:Ls}"), input);
// *** n
check_exception("The n option and type s can't be used together", SV("{:ns}"), input);
// *** type ***
check_exception("Type m requires a pair or a tuple with two elements", SV("{:m}"), input);
check_exception("The type option contains an invalid value for a character formatting argument", SV("{::<s}"), input);
// ***** Only underlying has a format-spec
check_exception("Type s and an underlying format specification can't be used together", SV("{:s:}"), input);
for (std::basic_string_view<CharT> fmt : fmt_invalid_nested_types<CharT>("bBcdoxX?"))
check_exception("The type option contains an invalid value for a character formatting argument", fmt, input);
// ***** Both have a format-spec
check_exception("Type s and an underlying format specification can't be used together", SV("{:5s:5}"), input);
}
// A set can be written as a debug_string, based on
// [tab:formatter.range.type]
// ?s T shall be charT. ...
// This does not seem very useful, but it is allowed.
template <class CharT, class TestFunction, class ExceptionTest>
void test_char_escaped_string(TestFunction check, [[maybe_unused]] ExceptionTest check_exception) {
std::set input{CharT('a'), CharT('c'), CharT('b')}; // input not sorted.
check(SV("\"abc\""), SV("{:?s}"), input);
// ***** underlying has no format-spec
// *** align-fill & width ***
check(SV(R"("abc" )"), SV("{:8?s}"), input);
check(SV(R"("abc"***)"), SV("{:*<8?s}"), input);
check(SV(R"(_"abc"__)"), SV("{:_^8?s}"), input);
check(SV(R"(###"abc")"), SV("{:#>8?s}"), input);
check(SV(R"("abc" )"), SV("{:{}?s}"), input, 8);
check(SV(R"("abc"***)"), SV("{:*<{}?s}"), input, 8);
check(SV(R"(_"abc"__)"), SV("{:_^{}?s}"), input, 8);
check(SV(R"(###"abc")"), SV("{:#>{}?s}"), input, 8);
check_exception("The format string contains an invalid escape sequence", SV("{:}<?s}"), input);
check_exception("The fill option contains an invalid value", SV("{:{<?s}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{::<?s}"), input);
// *** sign ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:-?s}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{:+?s}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{: ?s}"), input);
// *** alternate form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:#?s}"), input);
// *** zero-padding ***
check_exception("The width option should not have a leading zero", SV("{:0?s}"), input);
// *** precision ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:.?s}"), input);
// *** locale-specific form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:L?s}"), input);
// *** n
check_exception("The n option and type ?s can't be used together", SV("{:n?s}"), input);
// *** type ***
check_exception("Type m requires a pair or a tuple with two elements", SV("{:m}"), input);
// ***** Only underlying has a format-spec
check_exception("Type ?s and an underlying format specification can't be used together", SV("{:?s:}"), input);
// ***** Both have a format-spec
check_exception("Type ?s and an underlying format specification can't be used together", SV("{:5?s:5}"), input);
}
template <class CharT, class TestFunction, class ExceptionTest>
void test_char(TestFunction check, ExceptionTest check_exception) {
test_char_default<CharT>(check, check_exception);
test_char_string<CharT>(check, check_exception);
test_char_escaped_string<CharT>(check, check_exception);
}
//
// char -> wchar_t
//
#ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
template <class TestFunction, class ExceptionTest>
void test_char_to_wchar(TestFunction check, ExceptionTest check_exception) {
std::set input{'a', 'c', 'b'}; // input not sorted.
using CharT = wchar_t;
// Note when no range-underlying-spec is present the char is escaped,
check(SV("{'a', 'b', 'c'}"), SV("{}"), input);
check(SV("{'a', 'b', 'c'}^42"), SV("{}^42"), input);
check(SV("{'a', 'b', 'c'}^42"), SV("{:}^42"), input);
// when one is present there is no escaping,
check(SV("{a, b, c}"), SV("{::}"), input);
check(SV("{a, b, c}"), SV("{::<}"), input);
// unless forced by the type specifier.
check(SV("{'a', 'b', 'c'}"), SV("{::?}"), input);
check(SV("{'a', 'b', 'c'}"), SV("{::<?}"), input);
// ***** underlying has no format-spec
// *** align-fill & width ***
check(SV("{'a', 'b', 'c'} "), SV("{:20}"), input);
check(SV("{'a', 'b', 'c'}*****"), SV("{:*<20}"), input);
check(SV("__{'a', 'b', 'c'}___"), SV("{:_^20}"), input);
check(SV("#####{'a', 'b', 'c'}"), SV("{:#>20}"), input);
check(SV("{'a', 'b', 'c'} "), SV("{:{}}"), input, 20);
check(SV("{'a', 'b', 'c'}*****"), SV("{:*<{}}"), input, 20);
check(SV("__{'a', 'b', 'c'}___"), SV("{:_^{}}"), input, 20);
check(SV("#####{'a', 'b', 'c'}"), SV("{:#>{}}"), input, 20);
check_exception("The format string contains an invalid escape sequence", SV("{:}<}"), input);
check_exception("The fill option contains an invalid value", SV("{:{<}"), input);
// *** sign ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:-}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{:+}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{: }"), input);
// *** alternate form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:#}"), input);
// *** zero-padding ***
check_exception("The width option should not have a leading zero", SV("{:0}"), input);
// *** precision ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:.}"), input);
// *** locale-specific form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:L}"), input);
// *** n
check(SV("__'a', 'b', 'c'___"), SV("{:_^18n}"), input);
// *** type ***
check_exception("Type m requires a pair or a tuple with two elements", SV("{:m}"), input);
// ***** Only underlying has a format-spec
check(SV("{a , b , c }"), SV("{::4}"), input);
check(SV("{a***, b***, c***}"), SV("{::*<4}"), input);
check(SV("{_a__, _b__, _c__}"), SV("{::_^4}"), input);
check(SV("{:::a, :::b, :::c}"), SV("{:::>4}"), input);
check(SV("{a , b , c }"), SV("{::{}}"), input, 4);
check(SV("{a***, b***, c***}"), SV("{::*<{}}"), input, 4);
check(SV("{_a__, _b__, _c__}"), SV("{::_^{}}"), input, 4);
check(SV("{:::a, :::b, :::c}"), SV("{:::>{}}"), input, 4);
check_exception("The format string contains an invalid escape sequence", SV("{::}<}"), input);
check_exception("The fill option contains an invalid value", SV("{::{<}"), input);
// *** sign ***
check_exception("The format specifier for a character does not allow the sign option", SV("{::-}"), input);
check_exception("The format specifier for a character does not allow the sign option", SV("{::+}"), input);
check_exception("The format specifier for a character does not allow the sign option", SV("{:: }"), input);
check(SV("{97, 98, 99}"), SV("{::-d}"), input);
check(SV("{+97, +98, +99}"), SV("{::+d}"), input);
check(SV("{ 97, 98, 99}"), SV("{:: d}"), input);
// *** alternate form ***
check_exception("The format specifier for a character does not allow the alternate form option", SV("{::#}"), input);
check(SV("{0x61, 0x62, 0x63}"), SV("{::#x}"), input);
// *** zero-padding ***
check_exception("The format specifier for a character does not allow the zero-padding option", SV("{::05}"), input);
check(SV("{00141, 00142, 00143}"), SV("{::05o}"), input);
// *** precision ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{::.}"), input);
// *** locale-specific form ***
check(SV("{a, b, c}"), SV("{::L}"), input);
// *** type ***
for (std::basic_string_view<CharT> fmt : fmt_invalid_nested_types<CharT>("bBcdoxX?"))
check_exception("The type option contains an invalid value for a character formatting argument", fmt, input);
// ***** Both have a format-spec
check(SV("^^{:a, :b, :c}^^^"), SV("{:^^17::>2}"), input);
check(SV("^^{:a, :b, :c}^^^"), SV("{:^^{}::>2}"), input, 17);
check(SV("^^{:a, :b, :c}^^^"), SV("{:^^{}::>{}}"), input, 17, 2);
check_exception(
"The argument index value is too large for the number of arguments supplied", SV("{:^^{}::>2}"), input);
check_exception(
"The argument index value is too large for the number of arguments supplied", SV("{:^^{}::>{}}"), input, 17);
// The types s and ?s may only be used when using range_formatter<T, charT>
// where the types T and charT are the same. This means this can't be used for
// range_formatter<wchar_t, char> even when formatter<wchar_t, char> has a
// debug-enabled specialization.
using CharT = wchar_t;
check_exception("Type s requires character type as formatting argument", SV("{:s}"), input);
check_exception("Type ?s requires character type as formatting argument", SV("{:?s}"), input);
}
#endif // _LIBCPP_HAS_NO_WIDE_CHARACTERS
//
// Bool
//
template <class CharT, class TestFunction, class ExceptionTest>
void test_bool(TestFunction check, ExceptionTest check_exception) {
std::set input{true, false};
check(SV("{false, true}"), SV("{}"), input);
check(SV("{false, true}^42"), SV("{}^42"), input);
check(SV("{false, true}^42"), SV("{:}^42"), input);
// ***** underlying has no format-spec
// *** align-fill & width ***
check(SV("{false, true} "), SV("{:18}"), input);
check(SV("{false, true}*****"), SV("{:*<18}"), input);
check(SV("__{false, true}___"), SV("{:_^18}"), input);
check(SV("#####{false, true}"), SV("{:#>18}"), input);
check(SV("{false, true} "), SV("{:{}}"), input, 18);
check(SV("{false, true}*****"), SV("{:*<{}}"), input, 18);
check(SV("__{false, true}___"), SV("{:_^{}}"), input, 18);
check(SV("#####{false, true}"), SV("{:#>{}}"), input, 18);
check_exception("The format string contains an invalid escape sequence", SV("{:}<}"), input);
check_exception("The fill option contains an invalid value", SV("{:{<}"), input);
// *** sign ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:-}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{:+}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{: }"), input);
// *** alternate form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:#}"), input);
// *** zero-padding ***
check_exception("The width option should not have a leading zero", SV("{:0}"), input);
// *** precision ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:.}"), input);
// *** locale-specific form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:L}"), input);
// *** n
check(SV("__false, true___"), SV("{:_^16n}"), input);
// *** type ***
check_exception("Type m requires a pair or a tuple with two elements", SV("{:m}"), input);
check_exception("Type s requires character type as formatting argument", SV("{:s}"), input);
check_exception("Type ?s requires character type as formatting argument", SV("{:?s}"), input);
for (std::basic_string_view<CharT> fmt : fmt_invalid_types<CharT>("s"))
check_exception("The format specifier should consume the input or end with a '}'", fmt, input);
// ***** Only underlying has a format-spec
check(SV("{false , true }"), SV("{::7}"), input);
check(SV("{false**, true***}"), SV("{::*<7}"), input);
check(SV("{_false_, _true__}"), SV("{::_^7}"), input);
check(SV("{::false, :::true}"), SV("{:::>7}"), input);
check(SV("{false , true }"), SV("{::{}}"), input, 7);
check(SV("{false**, true***}"), SV("{::*<{}}"), input, 7);
check(SV("{_false_, _true__}"), SV("{::_^{}}"), input, 7);
check(SV("{::false, :::true}"), SV("{:::>{}}"), input, 7);
check_exception("The format string contains an invalid escape sequence", SV("{::}<}"), input);
check_exception("The fill option contains an invalid value", SV("{::{<}"), input);
// *** sign ***
check_exception("The format specifier for a bool does not allow the sign option", SV("{::-}"), input);
check_exception("The format specifier for a bool does not allow the sign option", SV("{::+}"), input);
check_exception("The format specifier for a bool does not allow the sign option", SV("{:: }"), input);
check(SV("{0, 1}"), SV("{::-d}"), input);
check(SV("{+0, +1}"), SV("{::+d}"), input);
check(SV("{ 0, 1}"), SV("{:: d}"), input);
// *** alternate form ***
check_exception("The format specifier for a bool does not allow the alternate form option", SV("{::#}"), input);
check(SV("{0x0, 0x1}"), SV("{::#x}"), input);
// *** zero-padding ***
check_exception("The format specifier for a bool does not allow the zero-padding option", SV("{::05}"), input);
check(SV("{00000, 00001}"), SV("{::05o}"), input);
// *** precision ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{::.}"), input);
// *** locale-specific form ***
check(SV("{false, true}"), SV("{::L}"), input);
// *** type ***
for (std::basic_string_view<CharT> fmt : fmt_invalid_nested_types<CharT>("bBdosxX"))
check_exception("The type option contains an invalid value for a bool formatting argument", fmt, input);
// ***** Both have a format-spec
check(SV("^^{::false, :::true}^^^"), SV("{:^^23::>7}"), input);
check(SV("^^{::false, :::true}^^^"), SV("{:^^{}::>7}"), input, 23);
check(SV("^^{::false, :::true}^^^"), SV("{:^^{}::>{}}"), input, 23, 7);
check_exception(
"The argument index value is too large for the number of arguments supplied", SV("{:^^{}::>5}"), input);
check_exception(
"The argument index value is too large for the number of arguments supplied", SV("{:^^{}::>{}}"), input, 23);
}
template <class CharT, class TestFunction, class ExceptionTest>
void test_bool_multiset(TestFunction check, ExceptionTest check_exception) {
std::multiset<bool, std::greater<bool>> input{true, false, true}; // unordered
check(SV("{true, true, false}"), SV("{}"), input);
check(SV("{true, true, false}^42"), SV("{}^42"), input);
check(SV("{true, true, false}^42"), SV("{:}^42"), input);
// ***** underlying has no format-spec
// *** align-fill & width ***
check(SV("{true, true, false} "), SV("{:24}"), input);
check(SV("{true, true, false}*****"), SV("{:*<24}"), input);
check(SV("__{true, true, false}___"), SV("{:_^24}"), input);
check(SV("#####{true, true, false}"), SV("{:#>24}"), input);
check(SV("{true, true, false} "), SV("{:{}}"), input, 24);
check(SV("{true, true, false}*****"), SV("{:*<{}}"), input, 24);
check(SV("__{true, true, false}___"), SV("{:_^{}}"), input, 24);
check(SV("#####{true, true, false}"), SV("{:#>{}}"), input, 24);
check_exception("The format string contains an invalid escape sequence", SV("{:}<}"), input);
check_exception("The fill option contains an invalid value", SV("{:{<}"), input);
// *** sign ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:-}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{:+}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{: }"), input);
// *** alternate form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:#}"), input);
// *** zero-padding ***
check_exception("The width option should not have a leading zero", SV("{:0}"), input);
// *** precision ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:.}"), input);
// *** locale-specific form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:L}"), input);
// *** n
check(SV("__true, true, false___"), SV("{:_^22n}"), input);
// *** type ***
check_exception("Type m requires a pair or a tuple with two elements", SV("{:m}"), input);
check_exception("Type s requires character type as formatting argument", SV("{:s}"), input);
check_exception("Type ?s requires character type as formatting argument", SV("{:?s}"), input);
for (std::basic_string_view<CharT> fmt : fmt_invalid_types<CharT>("s"))
check_exception("The format specifier should consume the input or end with a '}'", fmt, input);
// ***** Only underlying has a format-spec
check(SV("{true , true , false }"), SV("{::7}"), input);
check(SV("{true***, true***, false**}"), SV("{::*<7}"), input);
check(SV("{_true__, _true__, _false_}"), SV("{::_^7}"), input);
check(SV("{:::true, :::true, ::false}"), SV("{:::>7}"), input);
check(SV("{true , true , false }"), SV("{::{}}"), input, 7);
check(SV("{true***, true***, false**}"), SV("{::*<{}}"), input, 7);
check(SV("{_true__, _true__, _false_}"), SV("{::_^{}}"), input, 7);
check(SV("{:::true, :::true, ::false}"), SV("{:::>{}}"), input, 7);
check_exception("The format string contains an invalid escape sequence", SV("{::}<}"), input);
check_exception("The fill option contains an invalid value", SV("{::{<}"), input);
// *** sign ***
check_exception("The format specifier for a bool does not allow the sign option", SV("{::-}"), input);
check_exception("The format specifier for a bool does not allow the sign option", SV("{::+}"), input);
check_exception("The format specifier for a bool does not allow the sign option", SV("{:: }"), input);
check(SV("{1, 1, 0}"), SV("{::-d}"), input);
check(SV("{+1, +1, +0}"), SV("{::+d}"), input);
check(SV("{ 1, 1, 0}"), SV("{:: d}"), input);
// *** alternate form ***
check_exception("The format specifier for a bool does not allow the alternate form option", SV("{::#}"), input);
check(SV("{0x1, 0x1, 0x0}"), SV("{::#x}"), input);
// *** zero-padding ***
check_exception("The format specifier for a bool does not allow the zero-padding option", SV("{::05}"), input);
check(SV("{00001, 00001, 00000}"), SV("{::05o}"), input);
// *** precision ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{::.}"), input);
// *** locale-specific form ***
check(SV("{true, true, false}"), SV("{::L}"), input);
// *** type ***
for (std::basic_string_view<CharT> fmt : fmt_invalid_nested_types<CharT>("bBdosxX"))
check_exception("The type option contains an invalid value for a bool formatting argument", fmt, input);
// ***** Both have a format-spec
check(SV("^^{:::true, :::true, ::false}^^^"), SV("{:^^32::>7}"), input);
check(SV("^^{:::true, :::true, ::false}^^^"), SV("{:^^{}::>7}"), input, 32);
check(SV("^^{:::true, :::true, ::false}^^^"), SV("{:^^{}::>{}}"), input, 32, 7);
check_exception(
"The argument index value is too large for the number of arguments supplied", SV("{:^^{}::>5}"), input);
check_exception(
"The argument index value is too large for the number of arguments supplied", SV("{:^^{}::>{}}"), input, 32);
}
//
// Integral
//
template <class CharT, class TestFunction, class ExceptionTest>
void test_int(TestFunction check, ExceptionTest check_exception, auto&& input) {
check(SV("{-42, 1, 2, 42}"), SV("{}"), input);
check(SV("{-42, 1, 2, 42}^42"), SV("{}^42"), input);
check(SV("{-42, 1, 2, 42}^42"), SV("{:}^42"), input);
// ***** underlying has no format-spec
// *** align-fill & width ***
check(SV("{-42, 1, 2, 42} "), SV("{:20}"), input);
check(SV("{-42, 1, 2, 42}*****"), SV("{:*<20}"), input);
check(SV("__{-42, 1, 2, 42}___"), SV("{:_^20}"), input);
check(SV("#####{-42, 1, 2, 42}"), SV("{:#>20}"), input);
check(SV("{-42, 1, 2, 42} "), SV("{:{}}"), input, 20);
check(SV("{-42, 1, 2, 42}*****"), SV("{:*<{}}"), input, 20);
check(SV("__{-42, 1, 2, 42}___"), SV("{:_^{}}"), input, 20);
check(SV("#####{-42, 1, 2, 42}"), SV("{:#>{}}"), input, 20);
check_exception("The format string contains an invalid escape sequence", SV("{:}<}"), input);
check_exception("The fill option contains an invalid value", SV("{:{<}"), input);
// *** sign ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:-}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{:+}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{: }"), input);
// *** alternate form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:#}"), input);
// *** zero-padding ***
check_exception("The width option should not have a leading zero", SV("{:0}"), input);
// *** precision ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:.}"), input);
// *** locale-specific form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:L}"), input);
// *** n
check(SV("__-42, 1, 2, 42___"), SV("{:_^18n}"), input);
// *** type ***
check_exception("Type m requires a pair or a tuple with two elements", SV("{:m}"), input);
check_exception("Type s requires character type as formatting argument", SV("{:s}"), input);
check_exception("Type ?s requires character type as formatting argument", SV("{:?s}"), input);
for (std::basic_string_view<CharT> fmt : fmt_invalid_types<CharT>("s"))
check_exception("The format specifier should consume the input or end with a '}'", fmt, input);
// ***** Only underlying has a format-spec
check(SV("{ -42, 1, 2, 42}"), SV("{::5}"), input);
check(SV("{-42**, 1****, 2****, 42***}"), SV("{::*<5}"), input);
check(SV("{_-42_, __1__, __2__, _42__}"), SV("{::_^5}"), input);
check(SV("{::-42, ::::1, ::::2, :::42}"), SV("{:::>5}"), input);
check(SV("{ -42, 1, 2, 42}"), SV("{::{}}"), input, 5);
check(SV("{-42**, 1****, 2****, 42***}"), SV("{::*<{}}"), input, 5);
check(SV("{_-42_, __1__, __2__, _42__}"), SV("{::_^{}}"), input, 5);
check(SV("{::-42, ::::1, ::::2, :::42}"), SV("{:::>{}}"), input, 5);
check_exception("The format string contains an invalid escape sequence", SV("{::}<}"), input);
check_exception("The fill option contains an invalid value", SV("{::{<}"), input);
// *** sign ***
check(SV("{-42, 1, 2, 42}"), SV("{::-}"), input);
check(SV("{-42, +1, +2, +42}"), SV("{::+}"), input);
check(SV("{-42, 1, 2, 42}"), SV("{:: }"), input);
// *** alternate form ***
check(SV("{-0x2a, 0x1, 0x2, 0x2a}"), SV("{::#x}"), input);
// *** zero-padding ***
check(SV("{-0042, 00001, 00002, 00042}"), SV("{::05}"), input);
check(SV("{-002a, 00001, 00002, 0002a}"), SV("{::05x}"), input);
check(SV("{-0x2a, 0x001, 0x002, 0x02a}"), SV("{::#05x}"), input);
// *** precision ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{::.}"), input);
// *** locale-specific form ***
check(SV("{-42, 1, 2, 42}"), SV("{::L}"), input); // does nothing in this test, but is accepted.
// *** type ***
for (std::basic_string_view<CharT> fmt : fmt_invalid_nested_types<CharT>("bBcdoxX"))
check_exception("The type option contains an invalid value for an integer formatting argument", fmt, input);
// ***** Both have a format-spec
check(SV("^^{::-42, ::::1, ::::2, :::42}^^^"), SV("{:^^33::>5}"), input);
check(SV("^^{::-42, ::::1, ::::2, :::42}^^^"), SV("{:^^{}::>5}"), input, 33);
check(SV("^^{::-42, ::::1, ::::2, :::42}^^^"), SV("{:^^{}::>{}}"), input, 33, 5);
check_exception(
"The argument index value is too large for the number of arguments supplied", SV("{:^^{}::>5}"), input);
check_exception(
"The argument index value is too large for the number of arguments supplied", SV("{:^^{}::>{}}"), input, 33);
}
template <class CharT, class TestFunction, class ExceptionTest>
void test_int(TestFunction check, ExceptionTest check_exception) {
test_int<CharT>(check, check_exception, std::set{1, 42, 2, -42}); // unsorted
test_int<CharT>(check, check_exception, std::multiset{1, 42, 2, -42}); // unsorted
}
//
// Floating point
//
template <class CharT, class TestFunction, class ExceptionTest>
void test_floating_point(TestFunction check, ExceptionTest check_exception, auto&& input) {
check(SV("{-42.5, 0, 1.25, 42.5}"), SV("{}"), input);
check(SV("{-42.5, 0, 1.25, 42.5}^42"), SV("{}^42"), input);
check(SV("{-42.5, 0, 1.25, 42.5}^42"), SV("{:}^42"), input);
// ***** underlying has no format-spec
// *** align-fill & width ***
check(SV("{-42.5, 0, 1.25, 42.5} "), SV("{:27}"), input);
check(SV("{-42.5, 0, 1.25, 42.5}*****"), SV("{:*<27}"), input);
check(SV("__{-42.5, 0, 1.25, 42.5}___"), SV("{:_^27}"), input);
check(SV("#####{-42.5, 0, 1.25, 42.5}"), SV("{:#>27}"), input);
check(SV("{-42.5, 0, 1.25, 42.5} "), SV("{:{}}"), input, 27);
check(SV("{-42.5, 0, 1.25, 42.5}*****"), SV("{:*<{}}"), input, 27);
check(SV("__{-42.5, 0, 1.25, 42.5}___"), SV("{:_^{}}"), input, 27);
check(SV("#####{-42.5, 0, 1.25, 42.5}"), SV("{:#>{}}"), input, 27);
check_exception("The format string contains an invalid escape sequence", SV("{:}<}"), input);
check_exception("The fill option contains an invalid value", SV("{:{<}"), input);
// *** sign ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:-}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{:+}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{: }"), input);
// *** alternate form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:#}"), input);
// *** zero-padding ***
check_exception("The width option should not have a leading zero", SV("{:0}"), input);
// *** precision ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:.}"), input);
// *** locale-specific form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:L}"), input);
// *** n
check(SV("__-42.5, 0, 1.25, 42.5___"), SV("{:_^25n}"), input);
// *** type ***
check_exception("Type m requires a pair or a tuple with two elements", SV("{:m}"), input);
check_exception("Type s requires character type as formatting argument", SV("{:s}"), input);
check_exception("Type ?s requires character type as formatting argument", SV("{:?s}"), input);
for (std::basic_string_view<CharT> fmt : fmt_invalid_types<CharT>("s"))
check_exception("The format specifier should consume the input or end with a '}'", fmt, input);
// ***** Only underlying has a format-spec
check(SV("{-42.5, 0, 1.25, 42.5}"), SV("{::5}"), input);
check(SV("{-42.5, 0****, 1.25*, 42.5*}"), SV("{::*<5}"), input);
check(SV("{-42.5, __0__, 1.25_, 42.5_}"), SV("{::_^5}"), input);
check(SV("{-42.5, ::::0, :1.25, :42.5}"), SV("{:::>5}"), input);
check(SV("{-42.5, 0, 1.25, 42.5}"), SV("{::{}}"), input, 5);
check(SV("{-42.5, 0****, 1.25*, 42.5*}"), SV("{::*<{}}"), input, 5);
check(SV("{-42.5, __0__, 1.25_, 42.5_}"), SV("{::_^{}}"), input, 5);
check(SV("{-42.5, ::::0, :1.25, :42.5}"), SV("{:::>{}}"), input, 5);
check_exception("The format string contains an invalid escape sequence", SV("{::}<}"), input);
check_exception("The fill option contains an invalid value", SV("{::{<}"), input);
// *** sign ***
check(SV("{-42.5, 0, 1.25, 42.5}"), SV("{::-}"), input);
check(SV("{-42.5, +0, +1.25, +42.5}"), SV("{::+}"), input);
check(SV("{-42.5, 0, 1.25, 42.5}"), SV("{:: }"), input);
// *** alternate form ***
check(SV("{-42.5, 0., 1.25, 42.5}"), SV("{::#}"), input);
// *** zero-padding ***
check(SV("{-42.5, 00000, 01.25, 042.5}"), SV("{::05}"), input);
check(SV("{-42.5, 0000., 01.25, 042.5}"), SV("{::#05}"), input);
// *** precision ***
check(SV("{-42, 0, 1.2, 42}"), SV("{::.2}"), input);
check(SV("{-42.500, 0.000, 1.250, 42.500}"), SV("{::.3f}"), input);
check(SV("{-42, 0, 1.2, 42}"), SV("{::.{}}"), input, 2);
check(SV("{-42.500, 0.000, 1.250, 42.500}"), SV("{::.{}f}"), input, 3);
check_exception("The precision option does not contain a value or an argument index", SV("{::.}"), input);
// *** locale-specific form ***
check(SV("{-42.5, 0, 1.25, 42.5}"), SV("{::L}"), input); // does not require locales present
#ifndef TEST_HAS_NO_LOCALIZATION
// TODO FMT Enable with locale testing active
# if 0
std::locale::global(std::locale(LOCALE_fr_FR_UTF_8));
check(SV("{-42,5, 0, 1,25, 42,5}"), SV("{::L}"), input);
std::locale::global(std::locale(LOCALE_en_US_UTF_8));
check(SV("{-42.5, 0, 1.25, 42.5}"), SV("{::L}"), input);
std::locale::global(std::locale::classic());
# endif
#endif // TEST_HAS_NO_LOCALIZATION
// *** type ***
for (std::basic_string_view<CharT> fmt : fmt_invalid_nested_types<CharT>("aAeEfFgG"))
check_exception("The type option contains an invalid value for a floating-point formatting argument", fmt, input);
// ***** Both have a format-spec
check(SV("^^{-42.5, ::::0, :1.25, :42.5}^^^"), SV("{:^^33::>5}"), input);
check(SV("^^{-42.5, ::::0, :1.25, :42.5}^^^"), SV("{:^^{}::>5}"), input, 33);
check(SV("^^{-42.5, ::::0, :1.25, :42.5}^^^"), SV("{:^^{}::>{}}"), input, 33, 5);
check(SV("^^{::-42, ::::0, ::1.2, :::42}^^^"), SV("{:^^33::>5.2}"), input);
check(SV("^^{::-42, ::::0, ::1.2, :::42}^^^"), SV("{:^^{}::>5.2}"), input, 33);
check(SV("^^{::-42, ::::0, ::1.2, :::42}^^^"), SV("{:^^{}::>{}.2}"), input, 33, 5);
check(SV("^^{::-42, ::::0, ::1.2, :::42}^^^"), SV("{:^^{}::>{}.{}}"), input, 33, 5, 2);
check_exception(
"The argument index value is too large for the number of arguments supplied", SV("{:^^{}::>5.2}"), input);
check_exception(
"The argument index value is too large for the number of arguments supplied", SV("{:^^{}::>{}.2}"), input, 33);
check_exception(
"The argument index value is too large for the number of arguments supplied",
SV("{:^^{}::>{}.{}}"),
input,
33,
5);
}
template <class CharT, class TestFunction, class ExceptionTest>
void test_floating_point(TestFunction check, ExceptionTest check_exception) {
test_floating_point<CharT>(check, check_exception, std::set{-42.5f, 0.0f, 1.25f, 42.5f});
test_floating_point<CharT>(check, check_exception, std::multiset{-42.5, 0.0, 1.25, 42.5});
test_floating_point<CharT>(check, check_exception, std::set{-42.5l, 0.0l, 1.25l, 42.5l});
}
//
// Pointer
//
template <class CharT, class TestFunction, class ExceptionTest>
void test_pointer(TestFunction check, ExceptionTest check_exception, auto&& input) {
check(SV("{0x0}"), SV("{}"), input);
check(SV("{0x0}^42"), SV("{}^42"), input);
check(SV("{0x0}^42"), SV("{:}^42"), input);
// ***** underlying has no format-spec
// *** align-fill & width ***
check(SV("{0x0} "), SV("{:10}"), input);
check(SV("{0x0}*****"), SV("{:*<10}"), input);
check(SV("__{0x0}___"), SV("{:_^10}"), input);
check(SV("#####{0x0}"), SV("{:#>10}"), input);
check(SV("{0x0} "), SV("{:{}}"), input, 10);
check(SV("{0x0}*****"), SV("{:*<{}}"), input, 10);
check(SV("__{0x0}___"), SV("{:_^{}}"), input, 10);
check(SV("#####{0x0}"), SV("{:#>{}}"), input, 10);
check_exception("The format string contains an invalid escape sequence", SV("{:}<}"), input);
check_exception("The fill option contains an invalid value", SV("{:{<}"), input);
// *** sign ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:#}"), input);
// *** alternate form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:#}"), input);
// *** zero-padding ***
check_exception("The width option should not have a leading zero", SV("{:0}"), input);
// *** precision ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:.}"), input);
// *** locale-specific form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:L}"), input);
// *** n
check(SV("_0x0_"), SV("{:_^5n}"), input);
// *** type ***
check_exception("Type m requires a pair or a tuple with two elements", SV("{:m}"), input);
check_exception("Type s requires character type as formatting argument", SV("{:s}"), input);
check_exception("Type ?s requires character type as formatting argument", SV("{:?s}"), input);
for (std::basic_string_view<CharT> fmt : fmt_invalid_types<CharT>("s"))
check_exception("The format specifier should consume the input or end with a '}'", fmt, input);
// ***** Only underlying has a format-spec
check(SV("{ 0x0}"), SV("{::5}"), input);
check(SV("{0x0**}"), SV("{::*<5}"), input);
check(SV("{_0x0_}"), SV("{::_^5}"), input);
check(SV("{::0x0}"), SV("{:::>5}"), input);
check(SV("{ 0x0}"), SV("{::{}}"), input, 5);
check(SV("{0x0**}"), SV("{::*<{}}"), input, 5);
check(SV("{_0x0_}"), SV("{::_^{}}"), input, 5);
check(SV("{::0x0}"), SV("{:::>{}}"), input, 5);
check_exception("The format string contains an invalid escape sequence", SV("{::}<}"), input);
check_exception("The fill option contains an invalid value", SV("{::{<}"), input);
// *** sign ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{::-}"), input);
// *** alternate form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{::#}"), input);
// *** zero-padding ***
check(SV("{0x0000}"), SV("{::06}"), input);
check(SV("{0x0000}"), SV("{::06p}"), input);
check(SV("{0X0000}"), SV("{::06P}"), input);
// *** precision ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{::.}"), input);
// *** locale-specific form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{::L}"), input);
// *** type ***
for (std::basic_string_view<CharT> fmt : fmt_invalid_nested_types<CharT>("pP"))
check_exception("The type option contains an invalid value for a pointer formatting argument", fmt, input);
// ***** Both have a format-spec
check(SV("^^{::0x0}^^^"), SV("{:^^12::>5}"), input);
check(SV("^^{::0x0}^^^"), SV("{:^^{}::>5}"), input, 12);
check(SV("^^{::0x0}^^^"), SV("{:^^{}::>{}}"), input, 12, 5);
check(SV("^^{::0x0}^^^"), SV("{:^^12::>5}"), input);
check(SV("^^{::0x0}^^^"), SV("{:^^{}::>5}"), input, 12);
check(SV("^^{::0x0}^^^"), SV("{:^^{}::>{}}"), input, 12, 5);
check_exception(
"The argument index value is too large for the number of arguments supplied", SV("{:^^{}::>5}"), input);
check_exception(
"The argument index value is too large for the number of arguments supplied", SV("{:^^{}::>{}}"), input, 12);
}
template <class CharT, class TestFunction, class ExceptionTest>
void test_pointer(TestFunction check, ExceptionTest check_exception) {
// Note nullptr_t can only be equality compared so not used in a set.
test_pointer<CharT>(check, check_exception, std::unordered_set{static_cast<const void*>(0)});
test_pointer<CharT>(check, check_exception, std::unordered_multiset{static_cast<void*>(0)});
}
//
// String
//
template <class CharT, class TestFunction, class ExceptionTest>
void test_string(TestFunction check, ExceptionTest check_exception, auto&& input) {
check(SV(R"({"Hello", "world"})"), SV("{}"), input);
check(SV(R"({"Hello", "world"}^42)"), SV("{}^42"), input);
check(SV(R"({"Hello", "world"}^42)"), SV("{:}^42"), input);
// ***** underlying has no format-spec
// *** align-fill & width ***
check(SV(R"({"Hello", "world"} )"), SV("{:23}"), input);
check(SV(R"({"Hello", "world"}*****)"), SV("{:*<23}"), input);
check(SV(R"(__{"Hello", "world"}___)"), SV("{:_^23}"), input);
check(SV(R"(#####{"Hello", "world"})"), SV("{:#>23}"), input);
check(SV(R"({"Hello", "world"} )"), SV("{:{}}"), input, 23);
check(SV(R"({"Hello", "world"}*****)"), SV("{:*<{}}"), input, 23);
check(SV(R"(__{"Hello", "world"}___)"), SV("{:_^{}}"), input, 23);
check(SV(R"(#####{"Hello", "world"})"), SV("{:#>{}}"), input, 23);
check_exception("The format string contains an invalid escape sequence", SV("{:}<}"), input);
check_exception("The fill option contains an invalid value", SV("{:{<}"), input);
// *** sign ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:#}"), input);
// *** alternate form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:#}"), input);
// *** zero-padding ***
check_exception("The width option should not have a leading zero", SV("{:0}"), input);
// *** precision ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:.}"), input);
// *** locale-specific form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:L}"), input);
// *** n
check(SV(R"(_"Hello", "world"_)"), SV("{:_^18n}"), input);
// *** type ***
check_exception("Type m requires a pair or a tuple with two elements", SV("{:m}"), input);
check_exception("Type s requires character type as formatting argument", SV("{:s}"), input);
check_exception("Type ?s requires character type as formatting argument", SV("{:?s}"), input);
for (std::basic_string_view<CharT> fmt : fmt_invalid_types<CharT>("s"))
check_exception("The format specifier should consume the input or end with a '}'", fmt, input);
// ***** Only underlying has a format-spec
check(SV(R"({Hello , world })"), SV("{::8}"), input);
check(SV(R"({Hello***, world***})"), SV("{::*<8}"), input);
check(SV(R"({_Hello__, _world__})"), SV("{::_^8}"), input);
check(SV(R"({:::Hello, :::world})"), SV("{:::>8}"), input);
check(SV(R"({Hello , world })"), SV("{::{}}"), input, 8);
check(SV(R"({Hello***, world***})"), SV("{::*<{}}"), input, 8);
check(SV(R"({_Hello__, _world__})"), SV("{::_^{}}"), input, 8);
check(SV(R"({:::Hello, :::world})"), SV("{:::>{}}"), input, 8);
check_exception("The format string contains an invalid escape sequence", SV("{::}<}"), input);
check_exception("The fill option contains an invalid value", SV("{::{<}"), input);
// *** sign ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{::-}"), input);
// *** alternate form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{::#}"), input);
// *** zero-padding ***
check_exception("The width option should not have a leading zero", SV("{::05}"), input);
// *** precision ***
check(SV(R"({Hel, wor})"), SV("{::.3}"), input);
check(SV(R"({Hel, wor})"), SV("{::.{}}"), input, 3);
check_exception("The precision option does not contain a value or an argument index", SV("{::.}"), input);
// *** locale-specific form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{::L}"), input);
// *** type ***
for (std::basic_string_view<CharT> fmt : fmt_invalid_nested_types<CharT>("s?"))
check_exception("The type option contains an invalid value for a string formatting argument", fmt, input);
// ***** Both have a format-spec
check(SV(R"(^^{:::Hello, :::world}^^^)"), SV("{:^^25::>8}"), input);
check(SV(R"(^^{:::Hello, :::world}^^^)"), SV("{:^^{}::>8}"), input, 25);
check(SV(R"(^^{:::Hello, :::world}^^^)"), SV("{:^^{}::>{}}"), input, 25, 8);
check(SV(R"(^^{:::Hello, :::world}^^^)"), SV("{:^^25::>8}"), input);
check(SV(R"(^^{:::Hello, :::world}^^^)"), SV("{:^^{}::>8}"), input, 25);
check(SV(R"(^^{:::Hello, :::world}^^^)"), SV("{:^^{}::>{}}"), input, 25, 8);
check_exception(
"The argument index value is too large for the number of arguments supplied", SV("{:^^{}::>8}"), input);
check_exception(
"The argument index value is too large for the number of arguments supplied", SV("{:^^{}::>{}}"), input, 25);
}
template <class CharT, class TestFunction, class ExceptionTest>
void test_string(TestFunction check, ExceptionTest check_exception) {
test_string<CharT>(check, check_exception, std::set{STR("Hello"), STR("world")});
test_string<CharT>(check, check_exception, std::set{SV("Hello"), SV("world")});
}
//
// Handle
//
template <class CharT, class TestFunction, class ExceptionTest>
void test_status(TestFunction check, ExceptionTest check_exception) {
std::set input{status::foo, status::bar, status::foobar}; // unordered input
check(SV("{0x5555, 0xaa55, 0xaaaa}"), SV("{}"), input);
check(SV("{0x5555, 0xaa55, 0xaaaa}^42"), SV("{}^42"), input);
check(SV("{0x5555, 0xaa55, 0xaaaa}^42"), SV("{:}^42"), input);
// ***** underlying has no format-spec
// *** align-fill & width ***
check(SV("{0x5555, 0xaa55, 0xaaaa} "), SV("{:29}"), input);
check(SV("{0x5555, 0xaa55, 0xaaaa}*****"), SV("{:*<29}"), input);
check(SV("__{0x5555, 0xaa55, 0xaaaa}___"), SV("{:_^29}"), input);
check(SV("#####{0x5555, 0xaa55, 0xaaaa}"), SV("{:#>29}"), input);
check(SV("{0x5555, 0xaa55, 0xaaaa} "), SV("{:{}}"), input, 29);
check(SV("{0x5555, 0xaa55, 0xaaaa}*****"), SV("{:*<{}}"), input, 29);
check(SV("__{0x5555, 0xaa55, 0xaaaa}___"), SV("{:_^{}}"), input, 29);
check(SV("#####{0x5555, 0xaa55, 0xaaaa}"), SV("{:#>{}}"), input, 29);
check_exception("The format string contains an invalid escape sequence", SV("{:}<}"), input);
check_exception("The fill option contains an invalid value", SV("{:{<}"), input);
// *** sign ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:-}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{:+}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{: }"), input);
// *** alternate form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:#}"), input);
// *** zero-padding ***
check_exception("The width option should not have a leading zero", SV("{:0}"), input);
// *** precision ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:.}"), input);
// *** locale-specific form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:L}"), input);
// *** n
check(SV("__0x5555, 0xaa55, 0xaaaa___"), SV("{:_^27n}"), input);
// *** type ***
check_exception("Type m requires a pair or a tuple with two elements", SV("{:m}"), input);
check_exception("Type s requires character type as formatting argument", SV("{:s}"), input);
check_exception("Type ?s requires character type as formatting argument", SV("{:?s}"), input);
for (std::basic_string_view<CharT> fmt : fmt_invalid_types<CharT>("s"))
check_exception("The format specifier should consume the input or end with a '}'", fmt, input);
// ***** Only underlying has a format-spec
check_exception("The type option contains an invalid value for a status formatting argument", SV("{::*<7}"), input);
check(SV("{0x5555, 0xaa55, 0xaaaa}"), SV("{::x}"), input);
check(SV("{0X5555, 0XAA55, 0XAAAA}"), SV("{::X}"), input);
check(SV("{bar, foobar, foo}"), SV("{::s}"), input);
// ***** Both have a format-spec
check(SV("^^{0X5555, 0XAA55, 0XAAAA}^^^"), SV("{:^^29:X}"), input);
check(SV("^^{0X5555, 0XAA55, 0XAAAA}^^^"), SV("{:^^{}:X}"), input, 29);
check_exception("The argument index value is too large for the number of arguments supplied", SV("{:^^{}:X}"), input);
}
//
// Pair
//
template <class CharT, class TestFunction, class ExceptionTest>
void test_pair_tuple(TestFunction check, ExceptionTest check_exception, auto&& input) {
check(SV("{(1, 'a'), (42, '*')}"), SV("{}"), input);
check(SV("{(1, 'a'), (42, '*')}^42"), SV("{}^42"), input);
check(SV("{(1, 'a'), (42, '*')}^42"), SV("{:}^42"), input);
// ***** underlying has no format-spec
// *** align-fill & width ***
check(SV("{(1, 'a'), (42, '*')} "), SV("{:26}"), input);
check(SV("{(1, 'a'), (42, '*')}*****"), SV("{:*<26}"), input);
check(SV("__{(1, 'a'), (42, '*')}___"), SV("{:_^26}"), input);
check(SV("#####{(1, 'a'), (42, '*')}"), SV("{:#>26}"), input);
check(SV("{(1, 'a'), (42, '*')} "), SV("{:{}}"), input, 26);
check(SV("{(1, 'a'), (42, '*')}*****"), SV("{:*<{}}"), input, 26);
check(SV("__{(1, 'a'), (42, '*')}___"), SV("{:_^{}}"), input, 26);
check(SV("#####{(1, 'a'), (42, '*')}"), SV("{:#>{}}"), input, 26);
check_exception("The format string contains an invalid escape sequence", SV("{:}<}"), input);
check_exception("The fill option contains an invalid value", SV("{:{<}"), input);
// *** sign ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:-}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{:+}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{: }"), input);
// *** alternate form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:#}"), input);
// *** zero-padding ***
check_exception("The width option should not have a leading zero", SV("{:0}"), input);
// *** precision ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:.}"), input);
// *** locale-specific form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:L}"), input);
// *** n
check(SV("__(1, 'a'), (42, '*')___"), SV("{:_^24n}"), input);
check(SV("__(1, 'a'), (42, '*')___"), SV("{:_^24nm}"), input); // m should have no effect
// *** type ***
check(SV("__{(1, 'a'), (42, '*')}___"), SV("{:_^26m}"), input);
check_exception("Type s requires character type as formatting argument", SV("{:s}"), input);
check_exception("Type ?s requires character type as formatting argument", SV("{:?s}"), input);
for (std::basic_string_view<CharT> fmt : fmt_invalid_types<CharT>("s"))
check_exception("The format specifier should consume the input or end with a '}'", fmt, input);
// ***** Only underlying has a format-spec
check(SV("{(1, 'a') , (42, '*') }"), SV("{::11}"), input);
check(SV("{(1, 'a')***, (42, '*')**}"), SV("{::*<11}"), input);
check(SV("{_(1, 'a')__, _(42, '*')_}"), SV("{::_^11}"), input);
check(SV("{###(1, 'a'), ##(42, '*')}"), SV("{::#>11}"), input);
check(SV("{(1, 'a') , (42, '*') }"), SV("{::{}}"), input, 11);
check(SV("{(1, 'a')***, (42, '*')**}"), SV("{::*<{}}"), input, 11);
check(SV("{_(1, 'a')__, _(42, '*')_}"), SV("{::_^{}}"), input, 11);
check(SV("{###(1, 'a'), ##(42, '*')}"), SV("{::#>{}}"), input, 11);
check_exception("The format string contains an invalid escape sequence", SV("{::}<}"), input);
check_exception("The fill option contains an invalid value", SV("{::{<}"), input);
// *** sign ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{::-}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{::+}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{:: }"), input);
// *** alternate form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{::#}"), input);
// *** zero-padding ***
check_exception("The width option should not have a leading zero", SV("{::05}"), input);
// *** precision ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{::.}"), input);
// *** locale-specific form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{::L}"), input);
// *** type ***
check(SV("{1: 'a', 42: '*'}"), SV("{::m}"), input);
check(SV("{1, 'a', 42, '*'}"), SV("{::n}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{::s}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{::?s}"), input);
for (std::basic_string_view<CharT> fmt : fmt_invalid_nested_types<CharT>("s"))
check_exception("The format specifier should consume the input or end with a '}'", fmt, input);
// ***** Both have a format-spec
check(SV("^^{###(1, 'a'), ##(42, '*')}^^^"), SV("{:^^31:#>11}"), input);
check(SV("^^{###(1, 'a'), ##(42, '*')}^^^"), SV("{:^^31:#>11}"), input);
check(SV("^^{###(1, 'a'), ##(42, '*')}^^^"), SV("{:^^{}:#>11}"), input, 31);
check(SV("^^{###(1, 'a'), ##(42, '*')}^^^"), SV("{:^^{}:#>{}}"), input, 31, 11);
check_exception(
"The argument index value is too large for the number of arguments supplied", SV("{:^^{}:#>5}"), input);
check_exception(
"The argument index value is too large for the number of arguments supplied", SV("{:^^{}:#>{}}"), input, 31);
check(SV("1: 'a', 42: '*'"), SV("{:n:m}"), input);
check(SV("1, 'a', 42, '*'"), SV("{:n:n}"), input);
check(SV("{1: 'a', 42: '*'}"), SV("{:m:m}"), input);
check(SV("{1, 'a', 42, '*'}"), SV("{:m:n}"), input);
}
template <class CharT, class TestFunction, class ExceptionTest>
void test_pair_tuple(TestFunction check, ExceptionTest check_exception) {
test_pair_tuple<CharT>(
check, check_exception, std::set{std::make_pair(1, CharT('a')), std::make_pair(42, CharT('*'))});
test_pair_tuple<CharT>(
check, check_exception, std::set{std::make_tuple(1, CharT('a')), std::make_tuple(42, CharT('*'))});
}
//
// Tuple 1
//
template <class CharT, class TestFunction, class ExceptionTest>
void test_tuple_int(TestFunction check, ExceptionTest check_exception) {
std::set input{std::make_tuple(42), std::make_tuple(99)};
check(SV("{(42), (99)}"), SV("{}"), input);
check(SV("{(42), (99)}^42"), SV("{}^42"), input);
check(SV("{(42), (99)}^42"), SV("{:}^42"), input);
// ***** underlying has no format-spec
// *** align-fill & width ***
check(SV("{(42), (99)} "), SV("{:17}"), input);
check(SV("{(42), (99)}*****"), SV("{:*<17}"), input);
check(SV("__{(42), (99)}___"), SV("{:_^17}"), input);
check(SV("#####{(42), (99)}"), SV("{:#>17}"), input);
check(SV("{(42), (99)} "), SV("{:{}}"), input, 17);
check(SV("{(42), (99)}*****"), SV("{:*<{}}"), input, 17);
check(SV("__{(42), (99)}___"), SV("{:_^{}}"), input, 17);
check(SV("#####{(42), (99)}"), SV("{:#>{}}"), input, 17);
check_exception("The format string contains an invalid escape sequence", SV("{:}<}"), input);
check_exception("The fill option contains an invalid value", SV("{:{<}"), input);
// *** sign ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:-}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{:+}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{: }"), input);
// *** alternate form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:#}"), input);
// *** zero-padding ***
check_exception("The width option should not have a leading zero", SV("{:0}"), input);
// *** precision ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:.}"), input);
// *** locale-specific form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:L}"), input);
// *** n
check(SV("__(42), (99)___"), SV("{:_^15n}"), input);
// *** type ***
check_exception("Type m requires a pair or a tuple with two elements", SV("{:m}"), input);
check_exception("Type s requires character type as formatting argument", SV("{:s}"), input);
check_exception("Type ?s requires character type as formatting argument", SV("{:?s}"), input);
for (std::basic_string_view<CharT> fmt : fmt_invalid_types<CharT>("s"))
check_exception("The format specifier should consume the input or end with a '}'", fmt, input);
// ***** Only underlying has a format-spec
check(SV("{(42) , (99) }"), SV("{::7}"), input);
check(SV("{(42)***, (99)***}"), SV("{::*<7}"), input);
check(SV("{_(42)__, _(99)__}"), SV("{::_^7}"), input);
check(SV("{###(42), ###(99)}"), SV("{::#>7}"), input);
check(SV("{(42) , (99) }"), SV("{::{}}"), input, 7);
check(SV("{(42)***, (99)***}"), SV("{::*<{}}"), input, 7);
check(SV("{_(42)__, _(99)__}"), SV("{::_^{}}"), input, 7);
check(SV("{###(42), ###(99)}"), SV("{::#>{}}"), input, 7);
check_exception("The format string contains an invalid escape sequence", SV("{::}<}"), input);
check_exception("The fill option contains an invalid value", SV("{::{<}"), input);
// *** sign ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{::-}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{::+}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{:: }"), input);
// *** alternate form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{::#}"), input);
// *** zero-padding ***
check_exception("The width option should not have a leading zero", SV("{::05}"), input);
// *** precision ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{::.}"), input);
// *** locale-specific form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{::L}"), input);
// *** type ***
check(SV("{42, 99}"), SV("{::n}"), input);
check_exception("Type m requires a pair or a tuple with two elements", SV("{::m}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{::s}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{::?s}"), input);
for (std::basic_string_view<CharT> fmt : fmt_invalid_nested_types<CharT>("s"))
check_exception("The format specifier should consume the input or end with a '}'", fmt, input);
// ***** Both have a format-spec
check(SV("^^{###(42), ###(99)}^^^"), SV("{:^^23:#>7}"), input);
check(SV("^^{###(42), ###(99)}^^^"), SV("{:^^23:#>7}"), input);
check(SV("^^{###(42), ###(99)}^^^"), SV("{:^^{}:#>7}"), input, 23);
check(SV("^^{###(42), ###(99)}^^^"), SV("{:^^{}:#>{}}"), input, 23, 7);
check_exception(
"The argument index value is too large for the number of arguments supplied", SV("{:^^{}:#>5}"), input);
check_exception(
"The argument index value is too large for the number of arguments supplied", SV("{:^^{}:#>{}}"), input, 23);
}
//
// Tuple 3
//
template <class CharT, class TestFunction, class ExceptionTest>
void test_tuple_int_int_int(TestFunction check, ExceptionTest check_exception) {
std::set input{std::make_tuple(42, 99, 0), std::make_tuple(1, 10, 100)}; // unordered
check(SV("{(1, 10, 100), (42, 99, 0)}"), SV("{}"), input);
check(SV("{(1, 10, 100), (42, 99, 0)}^42"), SV("{}^42"), input);
check(SV("{(1, 10, 100), (42, 99, 0)}^42"), SV("{:}^42"), input);
// ***** underlying has no format-spec
// *** align-fill & width ***
check(SV("{(1, 10, 100), (42, 99, 0)} "), SV("{:32}"), input);
check(SV("{(1, 10, 100), (42, 99, 0)}*****"), SV("{:*<32}"), input);
check(SV("__{(1, 10, 100), (42, 99, 0)}___"), SV("{:_^32}"), input);
check(SV("#####{(1, 10, 100), (42, 99, 0)}"), SV("{:#>32}"), input);
check(SV("{(1, 10, 100), (42, 99, 0)} "), SV("{:{}}"), input, 32);
check(SV("{(1, 10, 100), (42, 99, 0)}*****"), SV("{:*<{}}"), input, 32);
check(SV("__{(1, 10, 100), (42, 99, 0)}___"), SV("{:_^{}}"), input, 32);
check(SV("#####{(1, 10, 100), (42, 99, 0)}"), SV("{:#>{}}"), input, 32);
check_exception("The format string contains an invalid escape sequence", SV("{:}<}"), input);
check_exception("The fill option contains an invalid value", SV("{:{<}"), input);
// *** sign ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:-}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{:+}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{: }"), input);
// *** alternate form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:#}"), input);
// *** zero-padding ***
check_exception("The width option should not have a leading zero", SV("{:0}"), input);
// *** precision ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:.}"), input);
// *** locale-specific form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{:L}"), input);
// *** n
check(SV("__(1, 10, 100), (42, 99, 0)___"), SV("{:_^30n}"), input);
// *** type ***
check_exception("Type m requires a pair or a tuple with two elements", SV("{:m}"), input);
check_exception("Type s requires character type as formatting argument", SV("{:s}"), input);
check_exception("Type ?s requires character type as formatting argument", SV("{:?s}"), input);
for (std::basic_string_view<CharT> fmt : fmt_invalid_types<CharT>("s"))
check_exception("The format specifier should consume the input or end with a '}'", fmt, input);
// ***** Only underlying has a format-spec
check(SV("{(1, 10, 100) , (42, 99, 0) }"), SV("{::14}"), input);
check(SV("{(1, 10, 100)**, (42, 99, 0)***}"), SV("{::*<14}"), input);
check(SV("{_(1, 10, 100)_, _(42, 99, 0)__}"), SV("{::_^14}"), input);
check(SV("{##(1, 10, 100), ###(42, 99, 0)}"), SV("{::#>14}"), input);
check(SV("{(1, 10, 100) , (42, 99, 0) }"), SV("{::{}}"), input, 14);
check(SV("{(1, 10, 100)**, (42, 99, 0)***}"), SV("{::*<{}}"), input, 14);
check(SV("{_(1, 10, 100)_, _(42, 99, 0)__}"), SV("{::_^{}}"), input, 14);
check(SV("{##(1, 10, 100), ###(42, 99, 0)}"), SV("{::#>{}}"), input, 14);
check_exception("The format string contains an invalid escape sequence", SV("{::}<}"), input);
check_exception("The fill option contains an invalid value", SV("{::{<}"), input);
// *** sign ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{::-}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{::+}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{:: }"), input);
// *** alternate form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{::#}"), input);
// *** zero-padding ***
check_exception("The width option should not have a leading zero", SV("{::05}"), input);
// *** precision ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{::.}"), input);
// *** locale-specific form ***
check_exception("The format specifier should consume the input or end with a '}'", SV("{::L}"), input);
// *** type ***
check(SV("{1, 10, 100, 42, 99, 0}"), SV("{::n}"), input);
check_exception("Type m requires a pair or a tuple with two elements", SV("{::m}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{::s}"), input);
check_exception("The format specifier should consume the input or end with a '}'", SV("{::?s}"), input);
for (std::basic_string_view<CharT> fmt : fmt_invalid_nested_types<CharT>("s"))
check_exception("The format specifier should consume the input or end with a '}'", fmt, input);
// ***** Both have a format-spec
check(SV("^^{##(1, 10, 100), ###(42, 99, 0)}^^^"), SV("{:^^37:#>14}"), input);
check(SV("^^{##(1, 10, 100), ###(42, 99, 0)}^^^"), SV("{:^^37:#>14}"), input);
check(SV("^^{##(1, 10, 100), ###(42, 99, 0)}^^^"), SV("{:^^{}:#>14}"), input, 37);
check(SV("^^{##(1, 10, 100), ###(42, 99, 0)}^^^"), SV("{:^^{}:#>{}}"), input, 37, 14);
check_exception(
"The argument index value is too large for the number of arguments supplied", SV("{:^^{}:#>5}"), input);
check_exception(
"The argument index value is too large for the number of arguments supplied", SV("{:^^{}:#>{}}"), input, 37);
}
//
// Adaptor
//
class adaptor {
using adaptee = std::set<int>;
public:
using key_type = typename adaptee::key_type;
using iterator = typename adaptee::iterator;
iterator begin() { return data_.begin(); }
iterator end() { return data_.end(); }
explicit adaptor(std::set<int>&& data) : data_(std::move(data)) {}
private:
adaptee data_;
};
static_assert(std::format_kind<adaptor> == std::range_format::set);
template <class CharT, class TestFunction, class ExceptionTest>
void test_adaptor(TestFunction check, ExceptionTest check_exception) {
test_int<CharT>(check, check_exception, adaptor{std::set{1, 42, 2, -42}});
}
//
// Driver
//
template <class CharT, class TestFunction, class ExceptionTest>
void format_tests(TestFunction check, ExceptionTest check_exception) {
test_char<CharT>(check, check_exception);
#ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
if (std::same_as<CharT, wchar_t>) // avoid testing twice
test_char_to_wchar(check, check_exception);
#endif
test_bool<CharT>(check, check_exception);
test_bool_multiset<CharT>(check, check_exception);
test_int<CharT>(check, check_exception);
test_floating_point<CharT>(check, check_exception);
test_pointer<CharT>(check, check_exception);
test_string<CharT>(check, check_exception);
test_status<CharT>(check, check_exception); // Has its own handler with its own parser
test_pair_tuple<CharT>(check, check_exception);
test_tuple_int<CharT>(check, check_exception);
test_tuple_int_int_int<CharT>(check, check_exception);
test_adaptor<CharT>(check, check_exception);
}
#endif // TEST_STD_UTILITIES_FORMAT_FORMAT_RANGE_FORMAT_RANGE_FMTSET_FORMAT_FUNCTIONS_TESTS_H
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