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#include "result.hpp"
// result_test.cpp - Testsuite for possibly failing return values
//
// Copyright © 2014 Ben Longbons <b.r.longbons@gmail.com>
//
// This file is part of The Mana World (Athena server)
//
// 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 3 of the License, 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. If not, see <http://www.gnu.org/licenses/>.
#include <gtest/gtest.h>
#include "../strings/literal.hpp"
//#include "../poison.hpp"
namespace tmwa
{
TEST(Result, inspect)
{
struct Foo
{
int val;
Foo(int v) : val(v) {}
Foo(Foo&&) = default;
Foo(const Foo&) = delete;
Foo& operator = (Foo&&) = default;
Foo& operator = (const Foo&) = delete;
bool operator == (const Foo& other) const
{
return this->val == other.val;
}
};
Result<Foo> foo = Ok(Foo(1));
EXPECT_TRUE(foo.is_ok());
EXPECT_FALSE(foo.is_err());
EXPECT_EQ(foo.get_success(), Some(Foo(1)));
EXPECT_EQ(foo.get_failure(), ""_s);
foo = Err("oops"_s);
EXPECT_FALSE(foo.is_ok());
EXPECT_TRUE(foo.is_err());
EXPECT_EQ(foo.get_success(), None<Foo>());
EXPECT_EQ(foo.get_failure(), "oops"_s);
}
static
Result<int> try_you(bool b)
{
return b ? Ok(0) : Err("die"_s);
}
static
Result<int> try_me(bool b)
{
return Ok(TRY(try_you(b)) + 1);
}
TEST(Result, try)
{
Result<int> t = try_me(true);
EXPECT_EQ(t.get_success(), Some(1));
Result<int> f = try_me(false);
EXPECT_EQ(f.get_failure(), "die"_s);
}
} // namespace tmwa
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