portapack-mayhem/firmware/test/application/test_optional.cpp

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/*
* Copyright (C) 2023
*
* This file is part of PortaPack.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#include "doctest.h"
#include "optional.hpp"
TEST_SUITE_BEGIN("optional");
TEST_CASE("Default instance should not be valid.") {
Optional<int> o;
REQUIRE_FALSE(o.is_valid());
}
TEST_CASE("Instance with value should be valid.") {
Optional<int> o{1};
REQUIRE(o.is_valid());
}
TEST_CASE("Instance with value should be return true.") {
Optional<int> o{1};
REQUIRE((bool)o);
}
TEST_CASE("value() should return value.") {
Optional<int> o{1};
REQUIRE(o.value() == 1);
}
TEST_CASE("operator* should return value.") {
Optional<int> o{1};
REQUIRE(*o == 1);
}
TEST_CASE("operator-> should return value members.") {
struct S {
int i;
};
Optional<S> o{S{1}};
REQUIRE(o->i == 1);
}
TEST_SUITE_END();