Add test for CompositeEnvironmentBeanFactoryInitializationAotProcesso…

…r. Add javadocs.

spring-cloud-config-server/pom.xml

@@ -238,6 +238,11 @@
 			<artifactId>spring-cloud-aws-s3</artifactId>
 			<scope>test</scope>
 		</dependency>
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-core-test</artifactId>
+			<scope>test</scope>
+		</dependency>
 	</dependencies>
 
 	<properties>

spring-cloud-config-server/src/main/java/org/springframework/cloud/config/server/aot/CompositeEnvironmentBeanFactoryInitializationAotProcessor.java

@@ -55,7 +55,11 @@
 import org.springframework.util.ClassUtils;
 
 /**
+ * A {@link BeanFactoryInitializationAotProcessor} implementation that generates code
+ * for registering composite environment repository beans.
+ *
  * @author Olga Maciaszek-Sharma
+ * @since 4.1.2
  */
 public class CompositeEnvironmentBeanFactoryInitializationAotProcessor
 		implements BeanFactoryInitializationAotProcessor, BeanRegistrationExcludeFilter {
@@ -138,7 +142,7 @@ private void generateRuntimeHints(RuntimeHints runtimeHints) {
 		@SuppressWarnings("unchecked")
 		private void generateRegisterBeanDefinitionsMethod(MethodSpec.Builder method) {
 			method.addJavadoc(
-					"Register the EnvironmentRepositoryProperties bean definitions for composite config data sources.");
+					"Register composite environment repository bean definitions for composite config data sources.");
 			method.addModifiers(Modifier.PUBLIC);
 			method.addParameter(DefaultListableBeanFactory.class, "beanFactory");
 			method.addParameter(Environment.class, "environment");

spring-cloud-config-server/src/test/java/org/springframework/cloud/config/server/aot/CompositeEnvironmentBeanFactoryInitializationAotProcessorTests.java

@@ -0,0 +1,102 @@
+/*
+ * Copyright 2014-2024 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.
+ * 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.cloud.config.server.aot;
+
+import java.io.IOException;
+import java.nio.charset.Charset;
+import java.util.Optional;
+import java.util.Set;
+
+import org.junit.jupiter.api.Test;
+
+import org.springframework.aot.generate.GeneratedFiles;
+import org.springframework.aot.hint.ReflectionHints;
+import org.springframework.aot.test.generate.TestGenerationContext;
+import org.springframework.boot.test.context.runner.WebApplicationContextRunner;
+import org.springframework.boot.web.servlet.context.AnnotationConfigServletWebApplicationContext;
+import org.springframework.cloud.config.server.environment.MultipleJGitEnvironmentProperties;
+import org.springframework.cloud.config.server.environment.MultipleJGitEnvironmentRepository;
+import org.springframework.cloud.config.server.environment.MultipleJGitEnvironmentRepositoryFactory;
+import org.springframework.cloud.config.server.environment.SvnEnvironmentRepositoryFactory;
+import org.springframework.cloud.config.server.environment.SvnKitEnvironmentProperties;
+import org.springframework.cloud.config.server.environment.SvnKitEnvironmentRepository;
+import org.springframework.cloud.config.server.test.TestConfigServerApplication;
+import org.springframework.context.aot.ApplicationContextAotGenerator;
+import org.springframework.context.support.GenericApplicationContext;
+import org.springframework.javapoet.ClassName;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for {@link CompositeEnvironmentBeanFactoryInitializationAotProcessor}.
+ *
+ * @author Olga Maciaszek-Sharma
+ */
+class CompositeEnvironmentBeanFactoryInitializationAotProcessorTests {
+
+	@Test
+	void shouldCreateCompositeEnvironmentBeansRegistrationContribution() {
+		Set<Class<?>> hintClasses = Set.of(MultipleJGitEnvironmentRepository.class,
+			SvnKitEnvironmentRepository.class, SvnKitEnvironmentProperties.class,
+			MultipleJGitEnvironmentRepositoryFactory.class, SvnEnvironmentRepositoryFactory.class,
+			MultipleJGitEnvironmentProperties.class);
+		new WebApplicationContextRunner(AnnotationConfigServletWebApplicationContext::new)
+			.withUserConfiguration(TestConfigServerApplication.class)
+			.withPropertyValues("spring.cloud.refresh.enabled=false",
+				"spring.cloud.config.server.composite[0].uri:file:./target/repos/config-repo",
+				"spring.cloud.config.server.composite[0].type:git",
+				"spring.cloud.config.server.composite[1].uri:file:///./target/repos/svn-config-repo",
+				"spring.cloud.config.server.composite[1].type:svn", "spring.profiles.active:test,composite")
+			.prepare(context -> {
+				TestGenerationContext generationContext = new TestGenerationContext(TestTarget.class);
+				ClassName className = new ApplicationContextAotGenerator().processAheadOfTime(
+					(GenericApplicationContext) context.getSourceApplicationContext(), generationContext);
+				generationContext.writeGeneratedContent();
+				Optional<String> source = getGeneratedSource(generationContext, className.simpleName());
+				assertThat(source).isNotEmpty();
+				assertThat(source.get()).contains("beanFactory.registerBeanDefinition(\"git-env-repo-properties0\", propertiesDefinition0);",
+					"beanFactory.registerBeanDefinition(\"git-env-repo0\", repoBeanDefinition0);",
+					"beanFactory.registerBeanDefinition(\"svn-env-repo-properties1\", propertiesDefinition1);",
+					"beanFactory.registerBeanDefinition(\"svn-env-repo1\", repoBeanDefinition1);");
+				ReflectionHints hints = generationContext.getRuntimeHints().reflection();
+				hintClasses.forEach(clazz -> assertThat(hints.getTypeHint(clazz)).isNotNull());
+			});
+	}
+
+	private static Optional<String> getGeneratedSource(TestGenerationContext generationContext, String simpleClassName) {
+		return generationContext.
+			getGeneratedFiles()
+			.getGeneratedFiles(GeneratedFiles.Kind.SOURCE)
+			.values()
+			.stream()
+			.map(inputStreamSource -> {
+				try {
+					return new String(inputStreamSource.getInputStream()
+						.readAllBytes(), Charset.defaultCharset());
+				}
+				catch (IOException e) {
+					throw new RuntimeException(e);
+				}
+			})
+			.filter(source ->
+				source.contains(simpleClassName))
+			.findAny();
+	}
+
+	static class TestTarget { }
+
+}