63 lines
1.3 KiB
C++
63 lines
1.3 KiB
C++
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//
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// immer: immutable data structures for C++
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// Copyright (C) 2016, 2017, 2018 Juan Pedro Bolivar Puente
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//
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// This software is distributed under the Boost Software License, Version 1.0.
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// See accompanying file LICENSE or copy at http://boost.org/LICENSE_1_0.txt
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//
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#include <immer/refcount/no_refcount_policy.hpp>
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#include <immer/refcount/refcount_policy.hpp>
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#include <immer/refcount/unsafe_refcount_policy.hpp>
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#include <catch.hpp>
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TEST_CASE("no refcount has no data")
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{
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static_assert(std::is_empty<immer::no_refcount_policy>{}, "");
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}
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template <typename RefcountPolicy>
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void test_refcount()
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{
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using refcount = RefcountPolicy;
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SECTION("starts at one")
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{
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refcount elem{};
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CHECK(elem.dec());
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}
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SECTION("disowned starts at zero")
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{
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refcount elem{immer::disowned{}};
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elem.inc();
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CHECK(elem.dec());
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}
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SECTION("inc dec")
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{
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refcount elem{};
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elem.inc();
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CHECK(!elem.dec());
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CHECK(elem.dec());
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}
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SECTION("inc dec unsafe")
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{
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refcount elem{};
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elem.inc();
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CHECK(!elem.dec());
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elem.inc();
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elem.dec_unsafe();
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CHECK(elem.dec());
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}
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}
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TEST_CASE("basic refcount") { test_refcount<immer::refcount_policy>(); }
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TEST_CASE("thread unsafe refcount")
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{
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test_refcount<immer::unsafe_refcount_policy>();
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}
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