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// Copyright (C) 2015-2020 Jonathan Müller <jonathanmueller.dev@gmail.com>
// This file is subject to the license terms in the LICENSE file
// found in the top-level directory of this distribution.
#include <foonathan/memory/iteration_allocator.hpp>
#include <catch.hpp>
#include <foonathan/memory/allocator_storage.hpp>
#include "test_allocator.hpp"
using namespace foonathan::memory;
TEST_CASE("iteration_allocator", "[stack]")
{
SECTION("basic")
{
test_allocator alloc;
iteration_allocator<2, allocator_reference<test_allocator>> iter_alloc(100, alloc);
REQUIRE(alloc.no_allocated() == 1u);
REQUIRE(iter_alloc.max_iterations() == 2u);
REQUIRE(iter_alloc.cur_iteration() == 0u);
REQUIRE(iter_alloc.capacity_left(0u) == 50);
REQUIRE(iter_alloc.capacity_left(1u) == 50);
iter_alloc.allocate(10, 1);
REQUIRE(iter_alloc.capacity_left() < 50);
iter_alloc.allocate(4, 4);
REQUIRE(iter_alloc.capacity_left() < 50);
REQUIRE(iter_alloc.capacity_left(1u) == 50);
iter_alloc.next_iteration();
REQUIRE(iter_alloc.cur_iteration() == 1u);
REQUIRE(iter_alloc.capacity_left() == 50);
REQUIRE(iter_alloc.capacity_left(0u) < 50);
iter_alloc.allocate(10, 1);
REQUIRE(iter_alloc.capacity_left() < 50);
iter_alloc.next_iteration();
REQUIRE(iter_alloc.cur_iteration() == 0u);
REQUIRE(iter_alloc.capacity_left() == 50);
REQUIRE(iter_alloc.capacity_left(1u) < 50);
iter_alloc.next_iteration();
REQUIRE(iter_alloc.cur_iteration() == 1u);
REQUIRE(iter_alloc.capacity_left() == 50);
}
SECTION("overaligned")
{
test_allocator alloc;
iteration_allocator<1, allocator_reference<test_allocator>> iter_alloc(100, alloc);
auto align = 2 * detail::max_alignment;
auto mem = iter_alloc.allocate(align, align);
REQUIRE(detail::is_aligned(mem, align));
}
}
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