Add MeterRegistry class name assertions to test

Improve ActuatorAutoConfigurationTest by importing MeterRegistry and METER_REGISTRY_CLASS_NAME, and adding assertions to verify the constant equals the expected fully-qualified class name (io.micrometer.core.instrument.MeterRegistry) and matches MeterRegistry.class.getName(). This strengthens the test by ensuring the configuration constant is correct and strongly typed.

Author: mercyblitz

microsphere-spring-boot-actuator/src/test/java/io/microsphere/spring/boot/actuate/autoconfigure/ActuatorAutoConfigurationTest.java

@@ -16,6 +16,7 @@
  */
 package io.microsphere.spring.boot.actuate.autoconfigure;
 
+import io.micrometer.core.instrument.MeterRegistry;
 import org.junit.jupiter.api.ClassOrderer.OrderAnnotation;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Nested;
@@ -31,6 +32,7 @@
 
 import static io.microsphere.spring.boot.actuate.autoconfigure.ActuatorAutoConfiguration.ACTUATOR_TASK_SCHEDULER_SERVICE_BEAN_NAME;
 import static io.microsphere.spring.boot.actuate.autoconfigure.ActuatorAutoConfiguration.DEFAULT_TASK_SCHEDULER_POOL_SIZE;
+import static io.microsphere.spring.boot.actuate.autoconfigure.ActuatorAutoConfiguration.METER_REGISTRY_CLASS_NAME;
 import static io.microsphere.spring.boot.actuate.autoconfigure.ActuatorAutoConfiguration.TASK_SCHEDULER_POOL_SIZE_PROPERTY_NAME;
 import static io.microsphere.spring.boot.actuate.autoconfigure.ActuatorAutoConfiguration.TASK_SCHEDULER_THREAD_NAME_PREFIX_PROPERTY_NAME;
 import static org.junit.jupiter.api.Assertions.assertEquals;
@@ -53,6 +55,9 @@ void testConstants() {
         assertEquals("1", DEFAULT_TASK_SCHEDULER_POOL_SIZE);
         assertEquals("microsphere.spring.boot.actuator.task-scheduler.pool-size", TASK_SCHEDULER_POOL_SIZE_PROPERTY_NAME);
         assertEquals("microsphere.spring.boot.actuator.task-scheduler.thread-name-prefix", TASK_SCHEDULER_THREAD_NAME_PREFIX_PROPERTY_NAME);
+        assertEquals("io.micrometer.core.instrument.MeterRegistry", METER_REGISTRY_CLASS_NAME);
+        // test for strong type check
+        assertEquals(MeterRegistry.class.getName(), METER_REGISTRY_CLASS_NAME);
     }
 
     @Order(1)