xnu-7195.50.7.100.1.tar.gz

[apple/xnu.git] / tests / intrusive_shared_ptr_src / deref.cpp

diff --git a/tests/intrusive_shared_ptr_src/deref.cpp b/tests/intrusive_shared_ptr_src/deref.cpp
new file mode 100644 (file)
index 0000000..19e0923
--- /dev/null
+++ b/tests/intrusive_shared_ptr_src/deref.cpp
@@ -0,0 +1,38 @@
+//
+// Tests for
+//  T& operator*() const noexcept;
+//  T* operator->() const noexcept;
+//
+
+#include <libkern/c++/intrusive_shared_ptr.h>
+#include <darwintest.h>
+#include "test_policy.h"
+
+struct T {
+       int i;
+};
+
+template <typename T>
+static void
+tests()
+{
+       T obj{3};
+       tracked_shared_ptr<T> ptr(&obj, libkern::no_retain);
+
+       {
+               T& ref = *ptr;
+               CHECK(&ref == &obj);
+               CHECK(ref.i == 3);
+       }
+
+       {
+               int const& ref = ptr->i;
+               CHECK(&ref == &obj.i);
+               CHECK(ref == 3);
+       }
+}
+
+T_DECL(deref, "intrusive_shared_ptr.deref") {
+       tests<T>();
+       tests<T const>();
+}