mp-units/test/unit_test/static/fixed_string_test.cpp

// The MIT License (MIT)
//
// Copyright (c) 2018 Mateusz Pusz
//
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// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
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// 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
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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#include <units/bits/external/fixed_string.h>

using namespace units;

namespace {

constexpr basic_fixed_string txt1('a');
static_assert(txt1.size() == 1);
static_assert(txt1[0] == 'a');
static_assert(txt1 == basic_fixed_string("a"));
static_assert(txt1 < basic_fixed_string("b"));
static_assert(txt1 < basic_fixed_string("aa"));
static_assert(txt1 + basic_fixed_string('b') == basic_fixed_string("ab"));
static_assert(basic_fixed_string('b') + txt1 == basic_fixed_string("ba"));
static_assert(txt1 + basic_fixed_string("bc") == basic_fixed_string("abc"));
static_assert(basic_fixed_string("bc") + txt1 == basic_fixed_string("bca"));

constexpr basic_fixed_string txt2("abc");
static_assert(txt2.size() == 3);
static_assert(txt2[0] == 'a');
static_assert(txt2[1] == 'b');
static_assert(txt2[2] == 'c');
static_assert(txt2 == basic_fixed_string("abc"));
static_assert(txt2 < basic_fixed_string("b"));
static_assert(txt2 > basic_fixed_string("aa"));
static_assert(txt2 + basic_fixed_string('d') == basic_fixed_string("abcd"));
static_assert(basic_fixed_string('d') + txt2 == basic_fixed_string("dabc"));
static_assert(txt2 + basic_fixed_string("def") == basic_fixed_string("abcdef"));
static_assert(basic_fixed_string("def") + txt2 == basic_fixed_string("defabc"));

}  // namespace