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// Copyright (C) 2015-2025 Jonathan Müller and foonathan/memory contributors
// SPDX-License-Identifier: Zlib
#include <foonathan/memory/detail/debug_helpers.hpp>
#include <doctest/doctest.h>
#include <foonathan/memory/debugging.hpp>
using namespace foonathan::memory;
using namespace detail;
TEST_CASE("detail::debug_fill")
{
debug_magic array[10];
for (auto& el : array)
el = debug_magic::freed_memory;
debug_fill(array, sizeof(array), debug_magic::new_memory);
#if FOONATHAN_MEMORY_DEBUG_FILL
for (auto el : array)
REQUIRE(el == debug_magic::new_memory);
#else
for (auto el : array)
REQUIRE(el == debug_magic::freed_memory);
#endif
}
TEST_CASE("detail::debug_is_filled")
{
debug_magic array[10];
for (auto& el : array)
el = debug_magic::freed_memory;
REQUIRE(debug_is_filled(array, sizeof(array), debug_magic::freed_memory) == nullptr);
array[5] = debug_magic::new_memory;
auto ptr =
static_cast<debug_magic*>(debug_is_filled(array, sizeof(array), debug_magic::freed_memory));
#if FOONATHAN_MEMORY_DEBUG_FILL
REQUIRE(ptr == array + 5);
#else
REQUIRE(ptr == nullptr);
#endif
}
TEST_CASE("detail::debug_fill_new/free")
{
debug_magic array[10];
auto result = debug_fill_new(array, 8 * sizeof(debug_magic), sizeof(debug_magic));
auto offset = static_cast<debug_magic*>(result) - array;
auto expected_offset = debug_fence_size ? sizeof(debug_magic) : 0u;
REQUIRE(offset == expected_offset);
#if FOONATHAN_MEMORY_DEBUG_FILL
#if FOONATHAN_MEMORY_DEBUG_FENCE
REQUIRE(array[0] == debug_magic::fence_memory);
REQUIRE(array[9] == debug_magic::fence_memory);
const auto start = 1;
#else
const auto start = 0;
#endif
for (auto i = start; i < start + 8; ++i)
REQUIRE(array[i] == debug_magic::new_memory);
#endif
result = debug_fill_free(result, 8 * sizeof(debug_magic), sizeof(debug_magic));
REQUIRE(static_cast<debug_magic*>(result) == array);
#if FOONATHAN_MEMORY_DEBUG_FILL
#if FOONATHAN_MEMORY_DEBUG_FENCE
REQUIRE(array[0] == debug_magic::fence_memory);
REQUIRE(array[9] == debug_magic::fence_memory);
#endif
for (auto i = start; i < start + 8; ++i)
REQUIRE(array[i] == debug_magic::freed_memory);
#endif
}
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