diff --git a/test/core/event_engine/event_engine_test_utils.cc b/test/core/event_engine/event_engine_test_utils.cc
index cc036ad5d3b..1de11122b19 100644
--- a/test/core/event_engine/event_engine_test_utils.cc
+++ b/test/core/event_engine/event_engine_test_utils.cc
@@ -41,6 +41,7 @@
 #include "src/core/lib/gprpp/notification.h"
 #include "src/core/lib/gprpp/time.h"
 #include "src/core/lib/resource_quota/memory_quota.h"
+#include "test/core/test_util/build.h"
 
 // IWYU pragma: no_include <sys/socket.h>
 
@@ -77,7 +78,10 @@ std::string GetNextSendMessage() {
 }
 
 void WaitForSingleOwner(std::shared_ptr<EventEngine> engine) {
+  int n = 0;
   while (engine.use_count() > 1) {
+    ++n;
+    if (n == 100) AsanAssertNoLeaks();
     GRPC_LOG_EVERY_N_SEC(2, GPR_INFO, "engine.use_count() = %ld",
                          engine.use_count());
     absl::SleepFor(absl::Milliseconds(100));
diff --git a/test/core/test_util/build.cc b/test/core/test_util/build.cc
index 04d39e9574d..2ae07567d5b 100644
--- a/test/core/test_util/build.cc
+++ b/test/core/test_util/build.cc
@@ -12,62 +12,80 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-bool BuiltUnderValgrind() {
-#ifdef RUNNING_ON_VALGRIND
-  return true;
-#else
-  return false;
-#endif
-}
+#include "test/core/test_util/build.h"
 
-bool BuiltUnderTsan() {
+// Define GRPC_BUILD_HAS_ASAN as 1 or 0 depending on if we're building under
+// ASAN.
 #if defined(__has_feature)
-#if __has_feature(thread_sanitizer)
-  return true;
+#if __has_feature(address_sanitizer)
+#define GRPC_BUILD_HAS_ASAN 1
 #else
-  return false;
+#define GRPC_BUILD_HAS_ASAN 0
 #endif
 #else
-#ifdef THREAD_SANITIZER
-  return true;
+#ifdef ADDRESS_SANITIZER
+#define GRPC_BUILD_HAS_ASAN 1
 #else
-  return false;
+#define GRPC_BUILD_HAS_ASAN 0
 #endif
 #endif
-}
 
-bool BuiltUnderAsan() {
+// Define GRPC_BUILD_HAS_TSAN as 1 or 0 depending on if we're building under
+// TSAN.
 #if defined(__has_feature)
-#if __has_feature(address_sanitizer)
-  return true;
+#if __has_feature(thread_sanitizer)
+#define GRPC_BUILD_HAS_TSAN 1
 #else
-  return false;
+#define GRPC_BUILD_HAS_TSAN 0
 #endif
 #else
-#ifdef ADDRESS_SANITIZER
-  return true;
+#ifdef THREAD_SANITIZER
+#define GRPC_BUILD_HAS_TSAN 1
 #else
-  return false;
+#define GRPC_BUILD_HAS_TSAN 0
 #endif
 #endif
-}
 
-bool BuiltUnderMsan() {
+// Define GRPC_BUILD_HAS_MSAN as 1 or 0 depending on if we're building under
+// MSAN.
 #if defined(__has_feature)
 #if __has_feature(memory_sanitizer)
-  return true;
+#define GRPC_BUILD_HAS_MSAN 1
 #else
-  return false;
+#define GRPC_BUILD_HAS_MSAN 0
 #endif
 #else
 #ifdef MEMORY_SANITIZER
+#define GRPC_BUILD_HAS_MSAN 1
+#else
+#define GRPC_BUILD_HAS_MSAN 0
+#endif
+#endif
+
+#if GRPC_BUILD_HAS_ASAN
+#include <sanitizer/lsan_interface.h>
+#endif
+
+bool BuiltUnderValgrind() {
+#ifdef RUNNING_ON_VALGRIND
   return true;
 #else
   return false;
 #endif
+}
+
+bool BuiltUnderTsan() { return GRPC_BUILD_HAS_TSAN != 0; }
+
+bool BuiltUnderAsan() { return GRPC_BUILD_HAS_ASAN != 0; }
+
+void AsanAssertNoLeaks() {
+#if GRPC_BUILD_HAS_ASAN
+  __lsan_do_leak_check();
 #endif
 }
 
+bool BuiltUnderMsan() { return GRPC_BUILD_HAS_MSAN != 0; }
+
 bool BuiltUnderUbsan() {
 #ifdef GRPC_UBSAN
   return true;
diff --git a/test/core/test_util/build.h b/test/core/test_util/build.h
index 20bc21954ff..8574dfe8d3c 100644
--- a/test/core/test_util/build.h
+++ b/test/core/test_util/build.h
@@ -30,4 +30,7 @@ bool BuiltUnderMsan();
 // Returns whether this is built under UndefinedBehaviorSanitizer
 bool BuiltUnderUbsan();
 
+// Force a leak check if built under ASAN. If there are leaks, crash.
+void AsanAssertNoLeaks();
+
 #endif  // GRPC_TEST_CORE_TEST_UTIL_BUILD_H