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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
// -*- Mode: C++ -*-
//
// Copyright (C) 2020-2022 Google, Inc.
//
// Author: Matthias Maennich
/// @file
///
/// This program tests libabigail's CXX compatibility layer.
#include "lib/catch.hpp"
#include "abg-cxx-compat.h"
using abg_compat::optional;
TEST_CASE("OptionalConstruction", "[abg_compat::optional]")
{
optional<bool> opt1;
REQUIRE_FALSE(opt1.has_value());
optional<bool> opt2(true);
REQUIRE(opt2.has_value());
CHECK(opt2.value() == true);
optional<bool> opt3(false);
REQUIRE(opt3.has_value());
CHECK(opt3.value() == false);
}
TEST_CASE("OptionalValue", "[abg_compat::optional]")
{
optional<bool> opt;
REQUIRE_FALSE(opt.has_value());
REQUIRE_THROWS(opt.value());
opt = true;
REQUIRE_NOTHROW(opt.value());
CHECK(opt.value() == true);
}
TEST_CASE("OptionalValueOr", "[abg_compat::optional]")
{
optional<std::string> opt;
REQUIRE_FALSE(opt.has_value());
const std::string& mine = "mine";
// Ensure we get a copy of our own value.
CHECK(opt.value_or(mine) == mine);
// Now set the value
const std::string& other = "other";
opt = other;
CHECK(opt.value_or(mine) != mine);
CHECK(opt.value_or(mine) == other);
}
TEST_CASE("OptionalDeref", "[abg_compat::optional]")
{
optional<std::string> opt("asdf");
REQUIRE(opt.has_value());
CHECK(*opt == "asdf");
CHECK(opt->size() == 4);
}
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