--- libmalloc/libmalloc-715.100.22/tests/region_cookie_test.c
+++ /dev/null
@@ -1,90 +0,0 @@
-//
-//  region_cookie_test.c
-//  libsystem_malloc
-//
-//  Created by Kim Topley on 10/24/18.
-//
-
-#include <darwintest.h>
-#include <../src/internal.h>
-
-T_GLOBAL_META(T_META_RUN_CONCURRENTLY(true));
-
-T_DECL(tiny_region_cookie_test, "Crash on corruption of tiny region cookie",
-		T_META_TAG_VM_NOT_PREFERRED,
-		T_META_ENVVAR("MallocNanoZone=0"),
-		T_META_ENVVAR("MallocMaxMagazines=1"),
-		T_META_IGNORECRASHES("region_cookie_test"))
-{
-	pid_t child_pid = fork();
-	T_ASSERT_NE(child_pid, -1, "Fork failed");
-
-	if (!child_pid) {
-		// MallocMaxMagazines=1 ensures these allocations come from the
-		// same magazine.
-		void *ptr1 = malloc(1);
-		void *ptr2 = malloc(1);
-		T_ASSERT_NOTNULL(ptr1, "Allocation #1 succeeded");
-		T_ASSERT_NOTNULL(ptr2, "Allocation #2 succeeded");
-
-		// Corrupt the region cookie for both pointers (just in case they
-		// are in different regions).
-		void *region = TINY_REGION_FOR_PTR(ptr1);
-		REGION_COOKIE_FOR_TINY_REGION(region)++;
-
-		region = TINY_REGION_FOR_PTR(ptr2);
-		REGION_COOKIE_FOR_TINY_REGION(region)++;
-
-		free(ptr1);
-		free(ptr2);
-
-		// Should not get here
-		T_FAIL("Tiny region cookie corruption test failed");
-	} else {
-		int status;
-		pid_t wait_pid = waitpid(child_pid, &status, 0);
-		T_ASSERT_EQ(wait_pid, child_pid, "Got child status");
-		T_ASSERT_TRUE(WIFSIGNALED(status), "Child terminated by signal");
-		T_ASSERT_EQ(WTERMSIG(status), SIGABRT, "Child aborted");
-	}
-}
-
-T_DECL(small_region_cookie_test, "Crash on corruption of small region cookie",
-		T_META_TAG_VM_NOT_PREFERRED,
-		T_META_ENVVAR("MallocNanoZone=0"),
-		T_META_ENVVAR("MallocMaxMagazines=1"),
-		T_META_IGNORECRASHES("region_cookie_test"))
-{
-	pid_t child_pid = fork();
-	T_ASSERT_NE(child_pid, -1, "Fork failed");
-
-	if (!child_pid) {
-		// MallocMaxMagazines=1 ensures these allocations come from the
-		// same magazine.
-		void *ptr1 = malloc(TINY_LIMIT_THRESHOLD + 1);
-		void *ptr2 = malloc(TINY_LIMIT_THRESHOLD + 1);
-		T_ASSERT_NOTNULL(ptr1, "Allocation #1 succeeded");
-		T_ASSERT_NOTNULL(ptr2, "Allocation #2 succeeded");
-
-		// Corrupt the region cookie for both pointers (just in case they
-		// are in different regions).
-		void *region = SMALL_REGION_FOR_PTR(ptr1);
-		REGION_COOKIE_FOR_SMALL_REGION(region)++;
-
-		region = TINY_REGION_FOR_PTR(ptr2);
-		REGION_COOKIE_FOR_SMALL_REGION(region)++;
-
-		free(ptr1);
-		free(ptr2);
-
-		// Should not get here
-		T_FAIL("Small region cookie corruption test failed");
-	} else {
-		int status;
-		pid_t wait_pid = waitpid(child_pid, &status, 0);
-		T_ASSERT_EQ(wait_pid, child_pid, "Got child status");
-		T_ASSERT_TRUE(WIFSIGNALED(status), "Child terminated by signal");
-		T_ASSERT_EQ(WTERMSIG(status), SIGABRT, "Child aborted");
-	}
-}
-