diff --git a/graphql-dgs/src/test/java/com/alex/graphql/dgs/GraphqlDgsApplicationTests.java b/graphql-dgs/src/test/java/com/alex/graphql/dgs/GraphqlDgsApplicationTests.java
index 515b9e8..b025034 100644
--- a/graphql-dgs/src/test/java/com/alex/graphql/dgs/GraphqlDgsApplicationTests.java
+++ b/graphql-dgs/src/test/java/com/alex/graphql/dgs/GraphqlDgsApplicationTests.java
@@ -32,7 +32,7 @@ class GraphqlDgsApplicationTests {
 
 	@Test
 	void test_query_all_authors() {
-		List<String> authorNames = dgsQueryExecutor
+		List<String> authorNames = this.dgsQueryExecutor
 				.executeAndExtractJsonPath(TestQueries.QUERY_ALL_AUTHORS, TestQueries.JSON_PATH_ALL_AUTHOR_NAMES);
 
 		validateAuthorNames(authorNames);
@@ -40,7 +40,7 @@ void test_query_all_authors() {
 	
 	@Test
 	void test_query_all_posts() {
-		List<String> titles = dgsQueryExecutor
+		List<String> titles = this.dgsQueryExecutor
 				.executeAndExtractJsonPath(TestQueries.QUERY_ALL_POSTS, TestQueries.JSON_PATH_ALL_POST_TITLES);
 
 		validatePostTitles(titles);
@@ -48,7 +48,7 @@ void test_query_all_posts() {
 	
 	@Test
 	void test_create_post() {
-		Post post = dgsQueryExecutor
+		Post post = this.dgsQueryExecutor
 				.executeAndExtractJsonPathAsObject(TestQueries.MUTATION_CREATE_POST, TestQueries.JSON_PATH_CREATE_POST, Post.class);
 
 		validateNewPost(post);
@@ -56,7 +56,7 @@ void test_create_post() {
 	
 	@Test
 	void test_subscription() {
-		ExecutionResult executionResult = dgsQueryExecutor.execute(TestQueries.SUBSCRIPTION_GET_RANDOM_POST);
+		ExecutionResult executionResult = this.dgsQueryExecutor.execute(TestQueries.SUBSCRIPTION_GET_RANDOM_POST);
 		Publisher<ExecutionResult> publisher = executionResult.getData();
 
 		StepVerifier.withVirtualTime(() -> publisher, 1)
@@ -70,7 +70,7 @@ void test_subscription() {
 	@SuppressWarnings("unchecked")
 	private Post toPost(ExecutionResult result) {
 		Map<String, Object> data = (Map<String, Object>) result.getData();
-		return objectMapper.convertValue(data.get("randomPost"), Post.class);
+		return this.objectMapper.convertValue(data.get("randomPost"), Post.class);
 	}
 	
 	public static void validateAuthorNames(List<String> authorNames) {
diff --git a/graphql-kickstart/src/test/java/com/alex/graphql/kickstart/GraphQLKickstartDemoTest.java b/graphql-kickstart/src/test/java/com/alex/graphql/kickstart/GraphQLKickstartDemoTest.java
index 8a49147..20b7b1d 100644
--- a/graphql-kickstart/src/test/java/com/alex/graphql/kickstart/GraphQLKickstartDemoTest.java
+++ b/graphql-kickstart/src/test/java/com/alex/graphql/kickstart/GraphQLKickstartDemoTest.java
@@ -24,7 +24,7 @@
 class GraphQLKickstartDemoTest {
 
 	@Autowired
-	private GraphQLTestTemplate graphQLTestTemplate;
+	GraphQLTestTemplate graphQLTestTemplate;
 
 	@Autowired
 	GraphQLTestSubscription graphQLTestSubscription;
@@ -32,7 +32,7 @@ class GraphQLKickstartDemoTest {
 	@Test
 	void test_query_all_authors() throws IOException {
 		
-		GraphQLResponse response = graphQLTestTemplate.postForString(TestQueries.QUERY_ALL_AUTHORS);
+		GraphQLResponse response = this.graphQLTestTemplate.postForString(TestQueries.QUERY_ALL_AUTHORS);
 		List<String> authorNames = response.getList(TestQueries.JSON_PATH_ALL_AUTHOR_NAMES, String.class);
 		
 		validateAuthorNames(authorNames);
@@ -41,7 +41,7 @@ void test_query_all_authors() throws IOException {
 	@Test
 	void test_query_all_posts() throws IOException {
 		
-		GraphQLResponse response = graphQLTestTemplate.postForString(TestQueries.QUERY_ALL_POSTS);
+		GraphQLResponse response = this.graphQLTestTemplate.postForString(TestQueries.QUERY_ALL_POSTS);
 		List<String> titles = response.getList(TestQueries.JSON_PATH_ALL_POST_TITLES, String.class);
 
 		validatePostTitles(titles);
@@ -50,7 +50,7 @@ void test_query_all_posts() throws IOException {
 	@Test
 	void test_create_post() throws IOException {
 		
-		GraphQLResponse response = graphQLTestTemplate.postForString(TestQueries.MUTATION_CREATE_POST);
+		GraphQLResponse response = this.graphQLTestTemplate.postForString(TestQueries.MUTATION_CREATE_POST);
 		Post post= response.get(TestQueries.JSON_PATH_CREATE_POST, Post.class);
 
 		validateNewPost(post);
@@ -60,7 +60,7 @@ void test_create_post() throws IOException {
 	void test_subscription() {
 		
 	    final GraphQLResponse graphQLResponse =
-        graphQLTestSubscription
+	    	this.graphQLTestSubscription
             .init()
             .start("subscription-get-post.graphql")
             .awaitAndGetNextResponse(Duration.ofSeconds(5));
diff --git a/graphql-spring/src/test/java/com/alex/graphql/spring/GraphqlSpringApplicationTest.java b/graphql-spring/src/test/java/com/alex/graphql/spring/GraphqlSpringApplicationTest.java
index 8155251..2615a0d 100644
--- a/graphql-spring/src/test/java/com/alex/graphql/spring/GraphqlSpringApplicationTest.java
+++ b/graphql-spring/src/test/java/com/alex/graphql/spring/GraphqlSpringApplicationTest.java
@@ -10,7 +10,6 @@
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.TestInstance;
 import org.springframework.beans.factory.annotation.Value;
-import org.springframework.boot.test.autoconfigure.graphql.tester.AutoConfigureHttpGraphQlTester;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
 import org.springframework.graphql.test.tester.GraphQlTester;
@@ -23,7 +22,6 @@
 import com.alex.graphql.core.util.TestQueries;
 
 @SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT)
-@AutoConfigureHttpGraphQlTester
 @TestInstance(TestInstance.Lifecycle.PER_CLASS)
 @ActiveProfiles("no-security")
 public class GraphqlSpringApplicationTest {
@@ -37,14 +35,14 @@ public class GraphqlSpringApplicationTest {
 	// testing with reactive client over websocket:
 	@BeforeAll
 	void setUp() {
-		this.graphQlTester = WebSocketGraphQlTester.builder(URI.create(baseUrl), new ReactorNettyWebSocketClient())
+		this.graphQlTester = WebSocketGraphQlTester.builder(URI.create(this.baseUrl), new ReactorNettyWebSocketClient())
 				.build();
 	}
 
 	@Test
 	void test_query_all_authors() throws Exception {
 
-		Response response = graphQlTester.document(TestQueries.QUERY_ALL_AUTHORS).execute();
+		Response response = this.graphQlTester.document(TestQueries.QUERY_ALL_AUTHORS).execute();
 		List<String> authorNames = response.path(TestQueries.JSON_PATH_ALL_AUTHOR_NAMES).entityList(String.class).get();
 
 		validateAuthorNames(authorNames);
@@ -53,7 +51,7 @@ void test_query_all_authors() throws Exception {
 	@Test
 	void test_query_all_posts() throws Exception {
 
-		Response response = graphQlTester.document(TestQueries.QUERY_ALL_POSTS).execute();
+		Response response = this.graphQlTester.document(TestQueries.QUERY_ALL_POSTS).execute();
 		List<String> titles = response.path(TestQueries.JSON_PATH_ALL_POST_TITLES).entityList(String.class).get();
 
 		validatePostTitles(titles);
@@ -62,7 +60,7 @@ void test_query_all_posts() throws Exception {
 	@Test
 	void test_create_post() {
 
-		Response response = graphQlTester.document(TestQueries.MUTATION_CREATE_POST).execute();
+		Response response = this.graphQlTester.document(TestQueries.MUTATION_CREATE_POST).execute();
 		Post post = response.path(TestQueries.JSON_PATH_CREATE_POST).entity(Post.class).get();
 		
 		validateNewPost(post);
@@ -71,7 +69,7 @@ void test_create_post() {
 	@Test
 	void test_subscriptions() throws Exception {
 
-		Post post = graphQlTester.document(TestQueries.SUBSCRIPTION_GET_RANDOM_POST).executeSubscription()
+		Post post = this.graphQlTester.document(TestQueries.SUBSCRIPTION_GET_RANDOM_POST).executeSubscription()
 				.toFlux("randomPost", Post.class).blockFirst();
 
 		assertThat(post.getTitle()).isEqualTo(TestQueries.BOOK_1_TITLE);