Polishing contribution

Closes gh-969

spring-graphql-test/src/main/java/org/springframework/graphql/test/tester/DefaultGraphQlTester.java

@@ -145,8 +145,8 @@ final class DefaultGraphQlTester implements GraphQlTester {
 		}
 
 		@Override
-		public DefaultRequest variable(Map<String, Object> values) {
-			this.variables.putAll(values);
+		public DefaultRequest variables(Map<String, Object> variables) {
+			this.variables.putAll(variables);
 			return this;
 		}
 
@@ -159,7 +159,9 @@ final class DefaultGraphQlTester implements GraphQlTester {
 		@SuppressWarnings("ConstantConditions")
 		@Override
 		public Response execute() {
-			return DefaultGraphQlTester.this.transport.execute(request()).map((response) -> mapResponse(response, request())).block(DefaultGraphQlTester.this.responseTimeout);
+			return DefaultGraphQlTester.this.transport.execute(request())
+					.map((response) -> mapResponse(response, request()))
+					.block(DefaultGraphQlTester.this.responseTimeout);
 		}
 
 		@Override
@@ -169,7 +171,8 @@ final class DefaultGraphQlTester implements GraphQlTester {
 
 		@Override
 		public Subscription executeSubscription() {
-			return () -> DefaultGraphQlTester.this.transport.executeSubscription(request()).map((result) -> mapResponse(result, request()));
+			return () -> DefaultGraphQlTester.this.transport.executeSubscription(request())
+					.map((result) -> mapResponse(result, request()));
 		}
 
 		private GraphQlRequest request() {
@@ -177,7 +180,9 @@ final class DefaultGraphQlTester implements GraphQlTester {
 		}
 
 		private DefaultResponse mapResponse(GraphQlResponse response, GraphQlRequest request) {
-			return new DefaultResponse(response, DefaultGraphQlTester.this.errorFilter, assertDecorator(request), DefaultGraphQlTester.this.jsonPathConfig);
+			return new DefaultResponse(
+					response, DefaultGraphQlTester.this.errorFilter,
+					assertDecorator(request), DefaultGraphQlTester.this.jsonPathConfig);
 		}
 
 		private Consumer<Runnable> assertDecorator(GraphQlRequest request) {

spring-graphql-test/src/main/java/org/springframework/graphql/test/tester/GraphQlTester.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2023 the original author or authors.
+ * Copyright 2002-2024 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.
@@ -149,19 +149,19 @@ public interface GraphQlTester {
 		 * Add a variable.
 		 * @param name the variable name
 		 * @param value the variable value, possibly {@code null} since GraphQL
-		 * supports providing null value vs not providing a value at all.
+		 * supports providing null for a value vs not providing a value at all.
 		 * @return this request spec
 		 */
 		T variable(String name, @Nullable Object value);
 
 		/**
-		 * Add variables.
-		 * @param values the variables to be set
-		 * the variable of the values, possibly {@code null} since GraphQL
-		 * supports providing null value vs not providing a value at all.
+		 * Add variables from a {@link Map}.
+		 * @param values the variables to add, possibly with {@code null} values
+		 * since GraphQL supports null for a value vs not providing it at all.
 		 * @return this request spec
+		 * @since 1.3.0
 		 */
-		T variable(Map<String, Object> values);
+		T variables(Map<String, Object> values);
 
 		/**
 		 * Add a value for a protocol extension.

spring-graphql-test/src/test/java/org/springframework/graphql/test/tester/GraphQlTesterTests.java

@@ -29,6 +29,7 @@ import org.junit.jupiter.api.Test;
 import org.springframework.core.ParameterizedTypeReference;
 import org.springframework.graphql.ExecutionGraphQlRequest;
 import org.springframework.graphql.ExecutionGraphQlService;
+import org.springframework.graphql.GraphQlRequest;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
@@ -197,13 +198,13 @@ public class GraphQlTesterTests extends GraphQlTesterTestSupport {
 	void nestedPath() {
 
 		String document = "{me {name, friends}}";
-		getGraphQlService().setDataAsJson(document,
-				"{" +
-						"  \"me\":{" +
-						"      \"name\":\"Luke Skywalker\","
-						+ "    \"friends\":[{\"name\":\"Han Solo\"}, {\"name\":\"Leia Organa\"}]" +
-						"  }" +
-						"}");
+		getGraphQlService().setDataAsJson(document, """
+				{
+					"me":{
+							"name":"Luke Skywalker",
+						"friends":[{"name":"Han Solo"}, {"name":"Leia Organa"}]
+					}
+				}""");
 
 		graphQlTester().document(document).execute()
 				.path("me", me -> me
@@ -215,11 +216,12 @@ public class GraphQlTesterTests extends GraphQlTesterTestSupport {
 	@Test
 	void operationNameAndVariables() {
 
-		String document = "query HeroNameAndFriends($episode: Episode) {" +
-				"  hero(episode: $episode) {" +
-				"    name"
-				+ "  }" +
-				"}";
+		String document = """
+				query HeroNameAndFriends($episode: Episode) {
+					hero(episode: $episode) {
+						name
+					}
+				}""";
 
 		getGraphQlService().setDataAsJson(document, "{\"hero\": {\"name\":\"R2-D2\"}}");
 
@@ -242,36 +244,24 @@ public class GraphQlTesterTests extends GraphQlTesterTestSupport {
 	}
 
 	@Test
-	void operationNameAndVariablesAsMap() {
+	void variablesAsMap() {
 
-		String document = "query HeroNameAndFriends($episode: Episode) {" +
-				"  hero(episode: $episode) {" +
-				"    name"
-				+ "  }" +
-				"}";
+		String document = """
+				query HeroNameAndFriends($episode: Episode) {
+					hero(episode: $episode) {
+						name
+					}
+				}""";
 
 		getGraphQlService().setDataAsJson(document, "{\"hero\": {\"name\":\"R2-D2\"}}");
 
-		Map<String, Object> variableMap = new LinkedHashMap<>();
+		Map<String, Object> vars = Map.of(
+				"episode", Optional.of("JEDI"), "foo", Optional.of("bar"), "keyOnly", Optional.empty());
 
-		variableMap.put("episode", Optional.of("JEDI"));
-		variableMap.put("foo", Optional.of("bar"));
-		variableMap.put("keyOnly", Optional.ofNullable(null));
+		graphQlTester().document(document).variables(vars).execute();
 
-		GraphQlTester.Response response = graphQlTester().document(document)
-				.operationName("HeroNameAndFriends")
-				.variable(variableMap)
-				.execute();
-
-		response.path("hero").entity(MovieCharacter.class).isEqualTo(MovieCharacter.create("R2-D2"));
-
-		ExecutionGraphQlRequest request = getGraphQlService().getGraphQlRequest();
-		assertThat(request.getDocument()).contains(document);
-		assertThat(request.getOperationName()).isEqualTo("HeroNameAndFriends");
-		assertThat(request.getVariables()).hasSize(3);
-		assertThat(request.getVariables()).containsEntry("episode", Optional.of("JEDI"));
-		assertThat(request.getVariables()).containsEntry("foo", Optional.of("bar"));
-		assertThat(request.getVariables()).containsEntry("keyOnly", Optional.ofNullable(null));
+		GraphQlRequest request = getGraphQlService().getGraphQlRequest();
+		assertThat(request.getVariables()).containsExactlyEntriesOf(vars);
 	}
 
 	@Test