Allow TestcontainersLifecycleBeanPostProcessor to detect scoped beans

Update `TestcontainersLifecycleBeanPostProcessor` so that scoped beans
are included.

Fixes gh-35786

spring-boot-project/spring-boot-testcontainers/src/main/java/org/springframework/boot/testcontainers/lifecycle/TestcontainersLifecycleBeanPostProcessor.java

@@ -102,8 +102,7 @@ class TestcontainersLifecycleBeanPostProcessor
 
 	private void initializeStartables(Startable startableBean, String startableBeanName) {
 		logger.trace(LogMessage.format("Initializing startables"));
-		List<String> beanNames = new ArrayList<>(
-				List.of(this.beanFactory.getBeanNamesForType(Startable.class, false, false)));
+		List<String> beanNames = new ArrayList<>(getBeanNames(Startable.class));
 		beanNames.remove(startableBeanName);
 		List<Object> beans = getBeans(beanNames);
 		if (beans == null) {
@@ -132,7 +131,7 @@ class TestcontainersLifecycleBeanPostProcessor
 	private void initializeContainers() {
 		if (this.containersInitialized.compareAndSet(false, true)) {
 			logger.trace("Initializing containers");
-			List<String> beanNames = List.of(this.beanFactory.getBeanNamesForType(ContainerState.class, false, false));
+			List<String> beanNames = getBeanNames(ContainerState.class);
 			List<Object> beans = getBeans(beanNames);
 			if (beans != null) {
 				logger.trace(LogMessage.format("Initialized containers %s", beanNames));
@@ -144,6 +143,10 @@ class TestcontainersLifecycleBeanPostProcessor
 		}
 	}
 
+	private List<String> getBeanNames(Class<?> type) {
+		return List.of(this.beanFactory.getBeanNamesForType(type, true, false));
+	}
+
 	private List<Object> getBeans(List<String> beanNames) {
 		List<Object> beans = new ArrayList<>(beanNames.size());
 		for (String beanName : beanNames) {

spring-boot-project/spring-boot-testcontainers/src/test/java/org/springframework/boot/testcontainers/lifecycle/TestcontainersLifecycleOrderWithScopeIntegrationTests.java

@@ -0,0 +1,200 @@
+/*
+ * Copyright 2012-2024 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.boot.testcontainers.lifecycle;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.junit.jupiter.api.extension.ExtensionContext;
+import org.testcontainers.utility.DockerImageName;
+
+import org.springframework.beans.factory.ObjectFactory;
+import org.springframework.boot.testcontainers.lifecycle.TestcontainersLifecycleOrderWithScopeIntegrationTests.AssertingSpringExtension;
+import org.springframework.boot.testcontainers.lifecycle.TestcontainersLifecycleOrderWithScopeIntegrationTests.ContainerConfig;
+import org.springframework.boot.testcontainers.lifecycle.TestcontainersLifecycleOrderWithScopeIntegrationTests.ScopedContextLoader;
+import org.springframework.boot.testcontainers.lifecycle.TestcontainersLifecycleOrderWithScopeIntegrationTests.TestConfig;
+import org.springframework.boot.testcontainers.service.connection.ServiceConnection;
+import org.springframework.boot.testsupport.container.DisabledIfDockerUnavailable;
+import org.springframework.boot.testsupport.container.RedisContainer;
+import org.springframework.boot.testsupport.container.TestImage;
+import org.springframework.context.annotation.AnnotationConfigApplicationContext;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Scope;
+import org.springframework.context.support.GenericApplicationContext;
+import org.springframework.test.annotation.DirtiesContext;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit.jupiter.SpringExtension;
+import org.springframework.test.context.support.AnnotationConfigContextLoader;
+import org.springframework.util.LinkedMultiValueMap;
+import org.springframework.util.MultiValueMap;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Integration tests for {@link TestcontainersLifecycleBeanPostProcessor} to ensure create
+ * and destroy events happen in the correct order.
+ *
+ * @author Phillip Webb
+ */
+@ExtendWith(AssertingSpringExtension.class)
+@ContextConfiguration(loader = ScopedContextLoader.class, classes = { TestConfig.class, ContainerConfig.class })
+@DirtiesContext
+@DisabledIfDockerUnavailable
+class TestcontainersLifecycleOrderWithScopeIntegrationTests {
+
+	static List<String> events = Collections.synchronizedList(new ArrayList<>());
+
+	@Test
+	void eventsAreOrderedCorrectlyAfterStartup() {
+		assertThat(events).containsExactly("start-container", "create-bean");
+	}
+
+	@Configuration(proxyBeanMethods = false)
+	static class ContainerConfig {
+
+		@Bean
+		@Scope("custom")
+		@ServiceConnection("redis")
+		RedisContainer redisContainer() {
+			return TestImage.container(EventRecordingRedisContainer.class);
+		}
+
+	}
+
+	@Configuration(proxyBeanMethods = false)
+	static class TestConfig {
+
+		@Bean
+		TestBean testBean() {
+			events.add("create-bean");
+			return new TestBean();
+		}
+
+	}
+
+	static class TestBean implements AutoCloseable {
+
+		@Override
+		public void close() throws Exception {
+			events.add("destroy-bean");
+		}
+
+	}
+
+	static class AssertingSpringExtension extends SpringExtension {
+
+		@Override
+		public void afterAll(ExtensionContext context) throws Exception {
+			super.afterAll(context);
+			assertThat(events).containsExactly("start-container", "create-bean", "destroy-bean", "stop-container");
+		}
+
+	}
+
+	static class EventRecordingRedisContainer extends RedisContainer {
+
+		EventRecordingRedisContainer(DockerImageName dockerImageName) {
+			super(dockerImageName);
+		}
+
+		@Override
+		public void start() {
+			events.add("start-container");
+			super.start();
+		}
+
+		@Override
+		public void stop() {
+			events.add("stop-container");
+			super.stop();
+		}
+
+	}
+
+	static class ScopedContextLoader extends AnnotationConfigContextLoader {
+
+		@Override
+		protected GenericApplicationContext createContext() {
+			CustomScope customScope = new CustomScope();
+			AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext() {
+
+				@Override
+				protected void onClose() {
+					customScope.destroy();
+					super.onClose();
+				}
+
+			};
+			context.getBeanFactory().registerScope("custom", customScope);
+			return context;
+		}
+
+	}
+
+	static class CustomScope implements org.springframework.beans.factory.config.Scope {
+
+		private Map<String, Object> instances = new HashMap<>();
+
+		private MultiValueMap<String, Runnable> destructors = new LinkedMultiValueMap<>();
+
+		@Override
+		public Object get(String name, ObjectFactory<?> objectFactory) {
+			return this.instances.computeIfAbsent(name, (key) -> objectFactory.getObject());
+		}
+
+		@Override
+		public Object remove(String name) {
+			synchronized (this) {
+				Object removed = this.instances.remove(name);
+				this.destructors.get(name).forEach(Runnable::run);
+				this.destructors.remove(name);
+				return removed;
+			}
+		}
+
+		@Override
+		public void registerDestructionCallback(String name, Runnable callback) {
+			this.destructors.add(name, callback);
+		}
+
+		@Override
+		public Object resolveContextualObject(String key) {
+			return null;
+		}
+
+		@Override
+		public String getConversationId() {
+			return null;
+		}
+
+		public void destroy() {
+			synchronized (this) {
+				this.destructors.forEach((name, actions) -> actions.forEach(Runnable::run));
+				this.destructors.clear();
+				this.instances.clear();
+			}
+		}
+
+	}
+
+}