--- libmalloc/libmalloc-715.100.22/tests/xzone_testing.h
+++ /dev/null
@@ -1,162 +0,0 @@
-#ifndef __XZONE_TESTING_H__
-#define __XZONE_TESTING_H__
-
-#include <darwintest.h>
-
-#include <../src/internal.h>
-
-#include "tmo_test_defs.h"
-
-#if CONFIG_XZONE_MALLOC
-
-#if defined(_MALLOC_TYPE_ENABLED) && _MALLOC_TYPE_ENABLED
-#define HAVE_MALLOC_TYPE 1
-#else
-#define HAVE_MALLOC_TYPE 0
-#endif
-
-extern malloc_zone_t **malloc_zones;
-extern int32_t malloc_num_zones;
-
-static inline xzm_malloc_zone_t
-get_default_xzone_zone(void)
-{
-	bool found_pgm = false;
-	bool found_nano = false;
-
-	unsigned i = 0;
-
-	malloc_zone_t *zone = malloc_zones[i];
-	if (!strcmp(malloc_get_zone_name(zone), "ProbGuardMallocZone")) {
-		found_pgm = true;
-
-		i++;
-		if (i == malloc_num_zones) {
-			T_ASSERT_FAIL("didn't find xzone zone");
-		}
-		zone = malloc_zones[i];
-	}
-
-	T_ASSERT_GE(zone->version, 14, "zone version");
-	if (zone->introspect->zone_type != MALLOC_ZONE_TYPE_XZONE) {
-		// Maybe it's nano?
-		i++;
-		if (i == malloc_num_zones) {
-			T_ASSERT_FAIL("didn't find xzone xzone");
-		}
-		malloc_zone_t *helper_zone = malloc_zones[i];
-		const char *name = malloc_get_zone_name(helper_zone);
-		if (strcmp(name, "MallocHelperZone") != 0) {
-			T_ASSERT_FAIL("unexpected zone %s", name);
-		}
-
-		found_nano = true;
-
-		zone = helper_zone;
-		T_ASSERT_GE(zone->version, 14, "helper zone version");
-		T_ASSERT_EQ(zone->introspect->zone_type, MALLOC_ZONE_TYPE_XZONE,
-				"helper zone is xzone malloc");
-	}
-
-	bool nano_on_xzone = false;
-	enum {
-		PGM_NO_EXPECTATION,
-		PGM_EXPECTED_ENABLED,
-		PGM_EXPECTED_DISABLED,
-	} pgm_expectation = PGM_NO_EXPECTATION;
-
-#if !MALLOC_TARGET_EXCLAVES
-	nano_on_xzone = getenv("MallocNanoOnXzone");
-
-	const char *pgm_env = getenv("MallocProbGuard");
-	if (pgm_env) {
-		pgm_expectation = (*pgm_env == '1' ? PGM_EXPECTED_ENABLED :
-				PGM_EXPECTED_DISABLED);
-	}
-#endif
-
-	T_ASSERT_EQ(nano_on_xzone, found_nano,
-			"Nano state matched expectation (%d)", (int)nano_on_xzone);
-
-	switch (pgm_expectation) {
-	case PGM_NO_EXPECTATION:
-		T_LOG("PGM enablement: %d (no expectation)", (int)found_pgm);
-		break;
-	case PGM_EXPECTED_ENABLED:
-		T_ASSERT_TRUE(found_pgm, "PGM enabled");
-		break;
-	case PGM_EXPECTED_DISABLED:
-		T_ASSERT_FALSE(found_pgm, "PGM disabled");
-		break;
-	default:
-		T_ASSERT_FAIL("pgm_expectation");
-		break;
-	}
-
-	return (xzm_malloc_zone_t)zone;
-}
-
-#define _TEST_STRINGIFY(x) #x
-#define TEST_STRINGIFY(x) _TEST_STRINGIFY(x)
-
-#define PTR_BUCKET_ENVVAR "MallocXzonePtrBucketCount=" \
-		TEST_STRINGIFY(XZM_XZONE_DEFAULT_POINTER_BUCKET_COUNT)
-
-static inline void
-validate_bucket_distribution(xzm_malloc_zone_t zone, const char *expr,
-		void **ptrs, size_t n, bool do_free)
-{
-	size_t counts[XZM_XZONE_DEFAULT_POINTER_BUCKET_COUNT] = { 0 };
-
-	size_t early_count = 0;
-	for (int i = 0; i < n; i++) {
-		void *p = ptrs[i];
-
-		T_QUIET; T_ASSERT_NOTNULL(p, "(%s) allocation not NULL", expr);
-
-		xzm_slice_kind_t kind;
-		xzm_segment_group_id_t sgid;
-		xzm_xzone_bucket_t bucket;
-		bool lookup = xzm_ptr_lookup_4test(zone, p, &kind, &sgid, &bucket);
-
-		if (i == 0) {
-			size_t size = malloc_size(p);
-			T_LOG("(%s) malloc_size %zu", expr, size);
-		}
-
-		if (do_free) {
-			free(p);
-		}
-
-		if (!lookup) {
-			early_count++;
-			continue;
-		}
-
-		T_QUIET; T_ASSERT_EQ((int)kind, XZM_SLICE_KIND_TINY_CHUNK,
-				"tiny chunk");
-		T_QUIET; T_ASSERT_EQ((int)sgid, XZM_SEGMENT_GROUP_POINTER_XZONES,
-				"xzone pointer segment group");
-		T_QUIET; T_ASSERT_GE(bucket, XZM_XZONE_BUCKET_POINTER_BASE,
-				"pointer bucket lower bound");
-		T_QUIET; T_ASSERT_LT(bucket,
-				XZM_XZONE_BUCKET_POINTER_BASE +
-						XZM_XZONE_DEFAULT_POINTER_BUCKET_COUNT,
-				"pointer bucket upper bound");
-
-		counts[bucket - XZM_XZONE_BUCKET_POINTER_BASE]++;
-
-	}
-
-	T_LOG("(%s) %zu early allocations", expr, early_count);
-
-	for (int i = 0; i < XZM_XZONE_DEFAULT_POINTER_BUCKET_COUNT; i++) {
-		T_EXPECT_GT(counts[i], (size_t)0,
-				"(%s) expected nonzero allocations for bucket %d, found %zu",
-				expr, i, counts[i]);
-	}
-}
-
-#endif // CONFIG_XZONE_MALLOC
-
-#endif // __XZONE_TESTING_H__