--- libmalloc/libmalloc-792.41.1/tests/introspect_tests.c
+++ /dev/null
@@ -1,119 +0,0 @@
-//
-//  introspect_tests.c
-//  libmalloc
-//
-//  Tests malloc introspection features
-//
-
-#include <TargetConditionals.h>
-#include <darwintest.h>
-#include <darwintest_utils.h>
-#include <spawn.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/wait.h>
-#include <malloc/malloc.h>
-#include <../private/malloc_private.h>
-#include <../src/internal.h>
-
-T_GLOBAL_META(T_META_RUN_CONCURRENTLY(true), T_META_TAG_VM_PREFERRED);
-
-extern int32_t malloc_num_zones;
-extern malloc_zone_t **malloc_zones;
-
-void check_stats(malloc_zone_t *zone, malloc_statistics_t *stats)
-{
-	malloc_statistics_t stats2 = {};
-	zone->introspect->statistics(zone, &stats2);
-	T_QUIET; T_EXPECT_EQ(stats->blocks_in_use, stats2.blocks_in_use, "blocks_in_use matches");
-	T_QUIET; T_EXPECT_EQ(stats->size_in_use, stats2.size_in_use, "size_in_use matches");
-	T_QUIET; T_EXPECT_EQ(stats->blocks_in_use, stats2.blocks_in_use, "blocks_in_use matches");
-	T_QUIET; T_EXPECT_EQ(stats->size_allocated, stats2.size_allocated, "size_allocated matches");
-}
-
-
-void test_stats(int limit)
-{
-	malloc_statistics_t stats = {};
-	malloc_statistics_t old_stats = {};
-
-	malloc_zone_t *zone = malloc_zones[0];
-
-	T_ASSERT_GE(zone->version, 12, "zone version is at least 12");
-
-	zone->introspect->task_statistics(mach_task_self(), (vm_address_t)zone, NULL, &old_stats);
-	check_stats(zone, &old_stats);
-
-	T_LOG("testing statistics for allocations from 1 to %d", limit);
-
-	for (int i = 0; i < limit; i++) {
-		void *ptr = malloc(i);
-		T_QUIET; T_ASSERT_NOTNULL(ptr, "ptr isn't null");
-		size_t size = malloc_size(ptr);
-		zone->introspect->task_statistics(mach_task_self(), (vm_address_t)zone, NULL, &stats);
-		check_stats(zone, &stats);
-		if (stats.blocks_in_use == old_stats.blocks_in_use) {
-			T_LOG("last-free cache hit at size %d", i);
-			/* It's possible we hit the last-free cache.   Try one more allocation. */
-			ptr = malloc(i);
-			T_QUIET; T_ASSERT_NOTNULL(ptr, "ptr isn't null");
-			size = malloc_size(ptr);
-			zone->introspect->task_statistics(mach_task_self(), (vm_address_t)zone, NULL, &stats);
-			check_stats(zone, &stats);
-		}
-		T_QUIET; T_EXPECT_EQ(stats.size_in_use, old_stats.size_in_use+size, "%ld more bytes in use", (long)size);
-		T_QUIET; T_EXPECT_EQ(stats.blocks_in_use, old_stats.blocks_in_use+1, "one more block in use");
-		old_stats = stats;
-	}
-
-	T_LOG("done");
-}
-
-T_DECL(nano_statistics_test, "Test that we can introspect nano zone statistics",
-		T_META_ENVVAR("MallocNanoZone=V2"), T_META_ENVVAR("MallocProbGuard=0"),
-		T_META_CHECK_LEAKS(false), T_META_TAG_ALL_ALLOCATORS)
-{
-#if CONFIG_NANOZONE
-	(void)malloc(16);
-	T_ASSERT_EQ(malloc_engaged_nano(), 2, "Nanozone v2 engaged");
-	test_stats(256);
-#else // CONFIG_NANOZONE
-	T_SKIP("Nano allocator not configured");
-#endif // CONFIG_NANOZONE
-}
-
-
-T_DECL(szone_statistics_test, "Test that we can introspect szone zone statistics",
-		T_META_TAG_ALL_ALLOCATORS, T_META_ENVVAR("MallocNanoZone=0"),
-		T_META_ENVVAR("MallocProbGuard=0"), T_META_CHECK_LEAKS(false))
-{
-	(void)malloc(16);
-	T_ASSERT_EQ(malloc_engaged_nano(), 0, "Nanozone not engaged");
-	test_stats(5000);
-}
-
-
-void check_zones(vm_address_t *zones, unsigned zone_count)
-{
-	T_EXPECT_EQ(zone_count, malloc_num_zones, "zone count");
-	for (unsigned i = 0; i < zone_count; i++) {
-		T_EXPECT_EQ(zones[i], (vm_address_t)malloc_zones[i], "malloc_num_zones[%d]", i);
-	}
-}
-
-T_DECL(malloc_get_all_zones,
-		"Test that we can retrieve the zones of our own process with a NULL reader",
-		T_META_TAG_ALL_ALLOCATORS)
-{
-	vm_address_t *zones;
-	unsigned zone_count;
-	kern_return_t kr;
-
-	kr = malloc_get_all_zones(mach_task_self(), /*reader=*/NULL, &zones, &zone_count);
-	T_QUIET; T_ASSERT_EQ(kr, KERN_SUCCESS, "malloc_get_all_zones(mach_task_self(), ...)");
-	check_zones(zones, zone_count);
-
-	kr = malloc_get_all_zones(TASK_NULL, /*reader=*/NULL, &zones, &zone_count);
-	T_QUIET; T_ASSERT_EQ(kr, KERN_SUCCESS, "malloc_get_all_zones(TASK_NULL, ...)");
-	check_zones(zones, zone_count);
-}