Move Docker-based Elasticsearch test into separate class

Closes gh-27904

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/elasticsearch/ElasticsearchRestClientAutoConfigurationIntegrationTests.java

@@ -0,0 +1,71 @@
+/*
+ * Copyright 2012-2021 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.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.autoconfigure.elasticsearch;
+
+import java.time.Duration;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.elasticsearch.action.get.GetRequest;
+import org.elasticsearch.action.index.IndexRequest;
+import org.elasticsearch.client.RequestOptions;
+import org.elasticsearch.client.RestHighLevelClient;
+import org.junit.jupiter.api.Test;
+import org.testcontainers.elasticsearch.ElasticsearchContainer;
+import org.testcontainers.junit.jupiter.Container;
+import org.testcontainers.junit.jupiter.Testcontainers;
+
+import org.springframework.boot.autoconfigure.AutoConfigurations;
+import org.springframework.boot.test.context.runner.ApplicationContextRunner;
+import org.springframework.boot.testsupport.testcontainers.DockerImageNames;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Integration tests for {@link ElasticsearchRestClientAutoConfiguration}.
+ *
+ * @author Brian Clozel
+ * @author Vedran Pavic
+ * @author Evgeniy Cheban
+ */
+@Testcontainers(disabledWithoutDocker = true)
+class ElasticsearchRestClientAutoConfigurationIntegrationTests {
+
+	@Container
+	static final ElasticsearchContainer elasticsearch = new ElasticsearchContainer(DockerImageNames.elasticsearch())
+			.withStartupAttempts(5).withStartupTimeout(Duration.ofMinutes(10));
+
+	private final ApplicationContextRunner contextRunner = new ApplicationContextRunner()
+			.withConfiguration(AutoConfigurations.of(ElasticsearchRestClientAutoConfiguration.class));
+
+	@Test
+	void restClientCanQueryElasticsearchNode() {
+		this.contextRunner
+				.withPropertyValues("spring.elasticsearch.rest.uris=http://" + elasticsearch.getHttpHostAddress())
+				.run((context) -> {
+					RestHighLevelClient client = context.getBean(RestHighLevelClient.class);
+					Map<String, String> source = new HashMap<>();
+					source.put("a", "alpha");
+					source.put("b", "bravo");
+					IndexRequest index = new IndexRequest("test").id("1").source(source);
+					client.index(index, RequestOptions.DEFAULT);
+					GetRequest getRequest = new GetRequest("test").id("1");
+					assertThat(client.get(getRequest, RequestOptions.DEFAULT).isExists()).isTrue();
+				});
+	}
+
+}

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/elasticsearch/ElasticsearchRestClientAutoConfigurationTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2020 the original author or authors.
+ * Copyright 2012-2021 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.
@@ -17,7 +17,6 @@
 package org.springframework.boot.autoconfigure.elasticsearch;
 
 import java.time.Duration;
-import java.util.HashMap;
 import java.util.Map;
 
 import org.apache.http.HttpHost;
@@ -27,21 +26,14 @@ import org.apache.http.client.CredentialsProvider;
 import org.apache.http.client.config.RequestConfig;
 import org.apache.http.impl.nio.client.HttpAsyncClientBuilder;
 import org.assertj.core.api.InstanceOfAssertFactories;
-import org.elasticsearch.action.get.GetRequest;
-import org.elasticsearch.action.index.IndexRequest;
 import org.elasticsearch.client.Node;
-import org.elasticsearch.client.RequestOptions;
 import org.elasticsearch.client.RestClient;
 import org.elasticsearch.client.RestClientBuilder;
 import org.elasticsearch.client.RestHighLevelClient;
 import org.junit.jupiter.api.Test;
-import org.testcontainers.elasticsearch.ElasticsearchContainer;
-import org.testcontainers.junit.jupiter.Container;
-import org.testcontainers.junit.jupiter.Testcontainers;
 
 import org.springframework.boot.autoconfigure.AutoConfigurations;
 import org.springframework.boot.test.context.runner.ApplicationContextRunner;
-import org.springframework.boot.testsupport.testcontainers.DockerImageNames;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
@@ -55,13 +47,8 @@ import static org.mockito.Mockito.mock;
  * @author Vedran Pavic
  * @author Evgeniy Cheban
  */
-@Testcontainers(disabledWithoutDocker = true)
 class ElasticsearchRestClientAutoConfigurationTests {
 
-	@Container
-	static final ElasticsearchContainer elasticsearch = new ElasticsearchContainer(DockerImageNames.elasticsearch())
-			.withStartupAttempts(5).withStartupTimeout(Duration.ofMinutes(10));
-
 	private final ApplicationContextRunner contextRunner = new ApplicationContextRunner()
 			.withConfiguration(AutoConfigurations.of(ElasticsearchRestClientAutoConfiguration.class));
 
@@ -141,22 +128,6 @@ class ElasticsearchRestClientAutoConfigurationTests {
 				.isEqualTo(Math.toIntExact(connectTimeout.toMillis()));
 	}
 
-	@Test
-	void restClientCanQueryElasticsearchNode() {
-		this.contextRunner
-				.withPropertyValues("spring.elasticsearch.rest.uris=http://" + elasticsearch.getHttpHostAddress())
-				.run((context) -> {
-					RestHighLevelClient client = context.getBean(RestHighLevelClient.class);
-					Map<String, String> source = new HashMap<>();
-					source.put("a", "alpha");
-					source.put("b", "bravo");
-					IndexRequest index = new IndexRequest("test").id("1").source(source);
-					client.index(index, RequestOptions.DEFAULT);
-					GetRequest getRequest = new GetRequest("test").id("1");
-					assertThat(client.get(getRequest, RequestOptions.DEFAULT).isExists()).isTrue();
-				});
-	}
-
 	@Test
 	void configureUriWithUsernameOnly() {
 		this.contextRunner.withPropertyValues("spring.elasticsearch.rest.uris=http://user@localhost:9200")