--- xnu/xnu-12377.101.15/tests/intrusive_shared_ptr_src/assign.copy.cpp
+++ /dev/null
@@ -1,121 +0,0 @@
-//
-// Tests for
-//  template <typename U>
-//  intrusive_shared_ptr& operator=(intrusive_shared_ptr<U, RefcountPolicy> const& other);
-//
-//  intrusive_shared_ptr& operator=(intrusive_shared_ptr const& other);
-//
-
-#include <libkern/c++/intrusive_shared_ptr.h>
-#include <darwintest.h>
-#include <type_traits>
-#include "test_policy.h"
-
-struct Base { int i; };
-struct Derived : Base { };
-
-struct Base1 { int i; };
-struct Base2 { long l; };
-struct DerivedMultiple : Base1, Base2 {
-	DerivedMultiple(int i) : Base1{i}, Base2{i + 10}
-	{
-	}
-};
-
-struct Unrelated { };
-
-template <typename Stored, typename From, typename To>
-static void
-tests()
-{
-	Stored obj1{1};
-	Stored obj2{2};
-
-	// Copy-assign non-null to non-null
-	{
-		tracked_shared_ptr<From> const from(&obj1, libkern::retain);
-		tracked_shared_ptr<To> to(&obj2, libkern::retain);
-		tracking_policy::reset();
-		tracked_shared_ptr<To>& ref = (to = from);
-		CHECK(tracking_policy::releases == 1);
-		CHECK(tracking_policy::retains == 1);
-		CHECK(&ref == &to);
-		CHECK(from.get() == &obj1);
-		CHECK(to.get() == &obj1);
-	}
-
-	// Copy-assign non-null to null
-	{
-		tracked_shared_ptr<From> const from(&obj1, libkern::retain);
-		tracked_shared_ptr<To> to = nullptr;
-		tracking_policy::reset();
-		tracked_shared_ptr<To>& ref = (to = from);
-		CHECK(tracking_policy::releases == 0);
-		CHECK(tracking_policy::retains == 1);
-		CHECK(&ref == &to);
-		CHECK(from.get() == &obj1);
-		CHECK(to.get() == &obj1);
-	}
-
-	// Copy-assign null to non-null
-	{
-		tracked_shared_ptr<From> const from = nullptr;
-		tracked_shared_ptr<To> to(&obj2, libkern::retain);
-		tracking_policy::reset();
-		tracked_shared_ptr<To>& ref = (to = from);
-		CHECK(tracking_policy::releases == 1);
-		CHECK(tracking_policy::retains == 0);
-		CHECK(&ref == &to);
-		CHECK(from.get() == nullptr);
-		CHECK(to.get() == nullptr);
-	}
-
-	// Copy-assign null to null
-	{
-		tracked_shared_ptr<From> const from = nullptr;
-		tracked_shared_ptr<To> to = nullptr;
-		tracking_policy::reset();
-		tracked_shared_ptr<To>& ref = (to = from);
-		CHECK(tracking_policy::releases == 0);
-		CHECK(tracking_policy::retains == 0);
-		CHECK(&ref == &to);
-		CHECK(from.get() == nullptr);
-		CHECK(to.get() == nullptr);
-	}
-}
-
-T_DECL(assign_copy, "intrusive_shared_ptr.assign.copy", T_META_TAG_VM_PREFERRED) {
-	tests</*stored*/ Derived, /*from*/ Derived, /*to*/ Derived>();
-	tests</*stored*/ Derived, /*from*/ Derived, /*to*/ Derived const>();
-	tests</*stored*/ Derived, /*from*/ Derived const, /*to*/ Derived const>();
-
-	tests</*stored*/ Derived, /*from*/ Derived, /*to*/ Base>();
-	tests</*stored*/ Derived, /*from*/ Derived, /*to*/ Base const>();
-	tests</*stored*/ Derived, /*from*/ Derived const, /*to*/ Base const>();
-
-	tests</*stored*/ DerivedMultiple, /*from*/ DerivedMultiple, /*to*/ Base1>();
-	tests</*stored*/ DerivedMultiple, /*from*/ DerivedMultiple const, /*to*/ Base1 const>();
-
-	tests</*stored*/ DerivedMultiple, /*from*/ DerivedMultiple, /*to*/ Base2>();
-	tests</*stored*/ DerivedMultiple, /*from*/ DerivedMultiple const, /*to*/ Base2 const>();
-
-	// Make sure basic trait querying works
-	static_assert(std::is_copy_assignable_v<test_shared_ptr<Derived> >);
-
-	// Make sure downcasts are disabled
-	static_assert(!std::is_assignable_v</*to*/ test_shared_ptr<Derived>, /*from*/ test_shared_ptr<Base> const&>);
-	static_assert(!std::is_assignable_v</*to*/ test_shared_ptr<DerivedMultiple>, /*from*/ test_shared_ptr<Base1> const&>);
-	static_assert(!std::is_assignable_v</*to*/ test_shared_ptr<DerivedMultiple>, /*from*/ test_shared_ptr<Base2> const&>);
-	static_assert(!std::is_assignable_v</*to*/ test_shared_ptr<Base2>, /*from*/ test_shared_ptr<Base1> const&>);
-
-	// Make sure const-casting away doesn't work
-	static_assert(!std::is_assignable_v</*to*/ test_shared_ptr<Derived>, /*from*/ test_shared_ptr<Derived const> const&>);
-
-	// Make sure casting to unrelated types doesn't work
-	static_assert(!std::is_assignable_v</*to*/ test_shared_ptr<char>, /*from*/ test_shared_ptr<Derived> const&>);
-	static_assert(!std::is_assignable_v</*to*/ test_shared_ptr<Unrelated>, /*from*/ test_shared_ptr<Derived> const&>);
-	static_assert(!std::is_assignable_v</*to*/ test_shared_ptr<Base2>, /*from*/ test_shared_ptr<Base1> const&>);
-
-	// Make sure constructing with different policies doesn't work
-	static_assert(!std::is_assignable_v</*to*/ libkern::intrusive_shared_ptr<Derived, dummy_policy<2> >, /*from*/ libkern::intrusive_shared_ptr<Derived, dummy_policy<1> > const &>);
-}