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#include "mem.h"
#include <gtest/gtest.h>
#include "attributes.h"
#include "os_memory.h"
namespace {
TEST(Mem, AllocLarge)
{
// Mebi prefix: https://en.wikipedia.org/wiki/Binary_prefix.
constexpr std::uint32_t MI = 1024 * 1024;
const Memory *_Nonnull mem = os_memory();
void *ptr = mem_valloc(mem, 4, MI);
EXPECT_NE(ptr, nullptr);
mem_delete(mem, ptr);
}
TEST(Mem, AllocOverflow)
{
// Gibi prefix.
constexpr std::uint32_t GI = 1024 * 1024 * 1024;
const Memory *_Nonnull mem = os_memory();
// 1 gibi-elements of 100 bytes each.
void *ptr = mem_valloc(mem, GI, 100);
EXPECT_EQ(ptr, nullptr);
// 100 elements of 1 gibibyte each.
ptr = mem_valloc(mem, 100, GI);
EXPECT_EQ(ptr, nullptr);
// 128 (a multiple of 2) elements of 1 gibibyte each.
ptr = mem_valloc(mem, 128, GI);
EXPECT_EQ(ptr, nullptr);
}
} // namespace
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