Add initial project files (excluding ignored content)

external/safetyhook/test/allocator.cpp

@@ -0,0 +1,31 @@
+#include <boost/ut.hpp>
+#include <safetyhook.hpp>
+
+using namespace boost::ut;
+
+static suite<"allocator"> allocator_tests = [] {
+    "Allocator reuses freed memory"_test = [] {
+        const auto allocator = safetyhook::Allocator::create();
+        auto first_allocation = allocator->allocate(128);
+
+        expect(first_allocation.has_value());
+
+        const auto first_allocation_address = first_allocation->address();
+        const auto second_allocation = allocator->allocate(256);
+
+        expect(second_allocation.has_value());
+        expect(neq(second_allocation->address(), first_allocation_address));
+
+        first_allocation->free();
+
+        const auto third_allocation = allocator->allocate(64);
+
+        expect(third_allocation.has_value());
+        expect(eq(third_allocation->address(), first_allocation_address));
+
+        const auto fourth_allocation = allocator->allocate(64);
+
+        expect(fourth_allocation.has_value());
+        expect(eq(fourth_allocation->address(), third_allocation->address() + 64));
+    };
+};