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xo-alloc2: header reorg + DX1Collector utest

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Roland Conybeare 2025-12-14 16:58:25 -05:00
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/** @file Collector.test.cpp
*
* @author Roland Conybeare, Dec 2025
*
* NOTE: properly unit testing gc behavior requires
* xo-object2 dependency;
* see xo-object2/utest
**/
#include "gc/Collector.hpp"
#include "gc/DX1Collector.hpp"
#include <xo/indentlog/print/tag.hpp>
#include <catch2/catch.hpp>
namespace xo {
using xo::mm::ACollector;
using xo::mm::CollectorConfig;
using xo::mm::DX1Collector;
using xo::mm::ArenaConfig;
using xo::mm::generation;
using xo::mm::c_max_generation;
namespace ut {
// checklist
// - obj<ACollector> constructible [ ]
// - obj<ACollector> truthy [ ]
TEST_CASE("collector-any-null", "[alloc2][ACollector]")
{
/* empty variant collector */
obj<ACollector> gc1;
REQUIRE(!gc1);
REQUIRE(gc1.iface() != nullptr);
REQUIRE(gc1.data() == nullptr);
}
TEST_CASE("DX1Collector-1", "[alloc2][DX1Collector]")
{
ArenaConfig arena_cfg = { .name_ = "_test_unused",
.size_ = 4*1024*1024,
.store_header_flag_ = true,
.header_size_mask_ = 0x0000ffff, };
CollectorConfig cfg = { .arena_config_ = arena_cfg,
.n_generation_ = 2,
.gc_trigger_v_ = {{64*1024, 1024*1024, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0}} };
DX1Collector gc = DX1Collector{cfg};
generation g0 = generation{0};
REQUIRE(gc.to_space(g0));
REQUIRE(gc.from_space(g0));
REQUIRE(gc.to_space(g0)->is_mapped());
REQUIRE(gc.from_space(g0)->is_mapped());
generation g1 = generation{1};
REQUIRE(gc.to_space(g1));
REQUIRE(gc.from_space(g1));
REQUIRE(gc.to_space(g1)->is_mapped());
REQUIRE(gc.from_space(g1)->is_mapped());
/* verify from/to x N/T are unique */
REQUIRE(gc.to_space(g0) != gc.from_space(g0));
REQUIRE(gc.to_space(g1) != gc.to_space(g0));
REQUIRE(gc.from_space(g1) != gc.from_space(g0));
REQUIRE(gc.to_space(g0) != gc.from_space(g1));
for (generation gi = generation(2); gi < c_max_generation; ++gi) {
INFO(xtag("gi", gi));
REQUIRE(!gc.to_space(gi));
REQUIRE(!gc.from_space(gi));
REQUIRE(!gc.space_storage_[0][gi].is_mapped());
REQUIRE(!gc.space_storage_[1][gi].is_mapped());
}
}
}
}
/* end Collector.test.cpp */