61 lines
1.9 KiB
C++
61 lines
1.9 KiB
C++
/** @file DArena.test.cpp
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*
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* @author Roland Conybeare, Jan 2026
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**/
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#include "xo/arena/DArena.hpp"
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#include <catch2/catch.hpp>
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namespace xo {
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using xo::mm::DArena;
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using xo::mm::ArenaConfig;
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using std::byte;
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namespace ut {
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TEST_CASE("DArena-tiny", "[arena][DArena]")
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{
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ArenaConfig cfg { .name_ = "testarena",
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.size_ = 1 };
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DArena arena = DArena::map(cfg);
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REQUIRE(arena.config_.name_ == cfg.name_);
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REQUIRE(arena.lo_ != nullptr);
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REQUIRE(arena.free_ == arena.lo_);
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REQUIRE(arena.limit_ == arena.lo_);
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REQUIRE(arena.hi_ != nullptr);
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REQUIRE(arena.hi_ > arena.lo_);
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REQUIRE(((size_t)arena.hi_ - (size_t)arena.lo_) % arena.page_z_ == 0);
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REQUIRE(arena.lo_ + cfg.size_ <= arena.hi_);
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/* verify arena.lo_ is aligned on a page boundary */
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REQUIRE(((size_t)(arena.lo_) & (arena.page_z_ - 1)) == 0);
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/* verify arena.hi_ is aligned on a hugepage boundary */
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REQUIRE(((size_t)(arena.hi_) & (arena.page_z_ - 1)) == 0);
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byte * lo = arena.lo_;
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byte * free = arena.free_;
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byte * limit = arena.limit_;
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byte * hi = arena.hi_;
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size_t committed_z = arena.committed_z_;
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DArena arena2 = std::move(arena);
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REQUIRE(arena.lo_ == nullptr);
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REQUIRE(arena.free_ == nullptr);
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REQUIRE(arena.limit_ == nullptr);
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REQUIRE(arena.hi_ == nullptr);
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REQUIRE(arena.committed_z_ == 0);
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REQUIRE(arena.lo_ == nullptr);
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REQUIRE(arena2.lo_ == lo);
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REQUIRE(arena2.free_ == free);
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REQUIRE(arena2.limit_ == limit);
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REQUIRE(arena2.hi_ == hi);
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REQUIRE(arena2.committed_z_ == committed_z);
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}
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}
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}
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/* end DArena.test.cpp */
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