Restore HazelcastHealthIndicatorTests

Restore `HazelcastHealthIndicatorTests` which was accidentally replaced
with a version from 2.4.x.

See gh-24337

Author: philwebb

spring-boot-project/spring-boot-actuator/src/test/java/org/springframework/boot/actuate/hazelcast/HazelcastHealthIndicatorTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2020 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,14 +16,16 @@
 
 package org.springframework.boot.actuate.hazelcast;
 
-import com.hazelcast.core.Endpoint;
+import java.io.IOException;
+
 import com.hazelcast.core.HazelcastException;
 import com.hazelcast.core.HazelcastInstance;
-import com.hazelcast.transaction.TransactionalTask;
 import org.junit.jupiter.api.Test;
 
 import org.springframework.boot.actuate.health.Health;
 import org.springframework.boot.actuate.health.Status;
+import org.springframework.boot.autoconfigure.hazelcast.HazelcastInstanceFactory;
+import org.springframework.core.io.ClassPathResource;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.mockito.ArgumentMatchers.any;
@@ -38,28 +40,27 @@
  */
 class HazelcastHealthIndicatorTests {
 
-	private final HazelcastInstance hazelcast = mock(HazelcastInstance.class);
-
 	@Test
-	void hazelcastUp() {
-		Endpoint endpoint = mock(Endpoint.class);
-		given(this.hazelcast.getName()).willReturn("hz0-instance");
-		given(this.hazelcast.getLocalEndpoint()).willReturn(endpoint);
-		given(endpoint.getUuid()).willReturn("7581bb2f-879f-413f-b574-0071d7519eb0");
-		given(this.hazelcast.executeTransaction(any())).willAnswer((invocation) -> {
-			TransactionalTask<?> task = invocation.getArgument(0);
-			return task.execute(null);
-		});
-		Health health = new HazelcastHealthIndicator(this.hazelcast).health();
-		assertThat(health.getStatus()).isEqualTo(Status.UP);
-		assertThat(health.getDetails()).containsOnlyKeys("name", "uuid").containsEntry("name", "hz0-instance")
-				.containsEntry("uuid", "7581bb2f-879f-413f-b574-0071d7519eb0");
+	void hazelcastUp() throws IOException {
+		HazelcastInstance hazelcast = new HazelcastInstanceFactory(new ClassPathResource("hazelcast.xml"))
+				.getHazelcastInstance();
+		try {
+			Health health = new HazelcastHealthIndicator(hazelcast).health();
+			assertThat(health.getStatus()).isEqualTo(Status.UP);
+			assertThat(health.getDetails()).containsOnlyKeys("name", "uuid").containsEntry("name",
+					"actuator-hazelcast");
+			assertThat(health.getDetails().get("uuid")).asString().isNotEmpty();
+		}
+		finally {
+			hazelcast.shutdown();
+		}
 	}
 
 	@Test
 	void hazelcastDown() {
-		given(this.hazelcast.executeTransaction(any())).willReturn(new HazelcastException());
-		Health health = new HazelcastHealthIndicator(this.hazelcast).health();
+		HazelcastInstance hazelcast = mock(HazelcastInstance.class);
+		given(hazelcast.executeTransaction(any())).willThrow(new HazelcastException());
+		Health health = new HazelcastHealthIndicator(hazelcast).health();
 		assertThat(health.getStatus()).isEqualTo(Status.DOWN);
 	}