Add AutoConfigureGraphQl test annotation

This commit adds the `@AutoConfigureGraphQl` test annotation. It can be
used to import the relevant auto-configurations when testing a GraphQL
application.
Currently, it will get the main `GraphQlAutoConfiguration`, but also
what's required for configuring codecs and validation support.

See gh-29140

spring-boot-project/spring-boot-test-autoconfigure/build.gradle

@@ -55,6 +55,7 @@ dependencies {
 	optional("org.springframework.data:spring-data-neo4j")
 	optional("org.springframework.data:spring-data-r2dbc")
 	optional("org.springframework.data:spring-data-redis")
+	optional("org.springframework.graphql:spring-graphql-test")
 	optional("org.springframework.restdocs:spring-restdocs-mockmvc") {
 		exclude group: "javax.servlet", module: "javax.servlet-api"
 	}

spring-boot-project/spring-boot-test-autoconfigure/src/main/java/org/springframework/boot/test/autoconfigure/graphql/AutoConfigureGraphQl.java

@@ -0,0 +1,47 @@
+/*
+ * Copyright 2020-2021 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.test.autoconfigure.graphql;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Inherited;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+import org.springframework.boot.autoconfigure.ImportAutoConfiguration;
+
+/**
+ * {@link ImportAutoConfiguration Auto-configuration imports} for typical Spring GraphQL
+ * tests. Most tests should consider using {@link GraphQlTest @GraphQlTest} rather than
+ * using this annotation directly.
+ *
+ * @author Brian Clozel
+ * @since 2.7.0
+ * @see GraphQlTest
+ * @see org.springframework.boot.autoconfigure.http.codec.CodecsAutoConfiguration
+ * @see org.springframework.boot.autoconfigure.validation.ValidationAutoConfiguration
+ * @see org.springframework.boot.autoconfigure.graphql.GraphQlAutoConfiguration
+ */
+@Target(ElementType.TYPE)
+@Retention(RetentionPolicy.RUNTIME)
+@Documented
+@Inherited
+@ImportAutoConfiguration
+public @interface AutoConfigureGraphQl {
+
+}

spring-boot-project/spring-boot-test-autoconfigure/src/main/java/org/springframework/boot/test/autoconfigure/graphql/package-info.java

@@ -0,0 +1,20 @@
+/*
+ * Copyright 2020-2021 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.
+ */
+
+/**
+ * Auto-configuration for GraphQL testing.
+ */
+package org.springframework.boot.test.autoconfigure.graphql;

spring-boot-project/spring-boot-test-autoconfigure/src/main/resources/META-INF/spring.factories

@@ -188,6 +188,12 @@ org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfigurati
 org.springframework.boot.autoconfigure.web.servlet.HttpEncodingAutoConfiguration,\
 org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration
 
+# AutoConfigureGraphQl auto-configuration imports
+org.springframework.boot.test.autoconfigure.graphql.AutoConfigureGraphQl=\
+org.springframework.boot.autoconfigure.http.codec.CodecsAutoConfiguration,\
+org.springframework.boot.autoconfigure.validation.ValidationAutoConfiguration,\
+org.springframework.boot.autoconfigure.graphql.GraphQlAutoConfiguration
+
 # AutoConfigureWebServiceClient
 org.springframework.boot.test.autoconfigure.webservices.client.AutoConfigureWebServiceClient=\
 org.springframework.boot.test.autoconfigure.webservices.client.WebServiceClientTemplateAutoConfiguration,\