intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 23 insertions, 0 deletions

diff --git a/library/cpp/lfalloc/alloc_profiler/align_ut.cpp b/library/cpp/lfalloc/alloc_profiler/align_ut.cpp
new file mode 100644
index 0000000000..db9b17b95b
--- /dev/null
+++ b/library/cpp/lfalloc/alloc_profiler/align_ut.cpp
@@ -0,0 +1,23 @@
+#include <library/cpp/testing/unittest/registar.h>
+
+#include <util/generic/scope.h>
+
+Y_UNIT_TEST_SUITE(MemAlign) {
+    Y_UNIT_TEST(ShouldAlign)
+    {
+        for (ui64 size = 8; size <= 32 * 1024; size *= 8) {
+            for (ui64 align = 8; align <= 4096; align *=2) {
+                void* ptr = nullptr;
+
+                int res = posix_memalign(&ptr, align, size);
+                UNIT_ASSERT_C(res == 0 && ptr != nullptr, "memalign failed");
+
+                Y_DEFER {
+                    free(ptr);
+                };
+
+                UNIT_ASSERT_C((uintptr_t)ptr % align == 0, "non aligned memory");
+            }
+        }
+    }
+}