Create dedicated spring-boot-testcontainers module

Create a dedicated testcontainers module containing the service
connectors code.

Closes gh-34757

spring-boot-project/spring-boot-testcontainers/src/test/java/org/springframework/boot/testcontainers/service/connection/ServiceConnectionContextCustomizerFactoryTests.java

@@ -0,0 +1,99 @@
+/*
+ * Copyright 2012-2023 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.service.connection;
+
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+import org.testcontainers.containers.GenericContainer;
+
+import org.springframework.boot.autoconfigure.service.connection.ConnectionDetails;
+import org.springframework.boot.testcontainers.service.connection.ServiceConnectionContextCustomizerFactoryTests.ServiceConnections.NestedClass;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatIllegalStateException;
+
+/**
+ * Tests for {@link ServiceConnectionContextCustomizerFactory}.
+ *
+ * @author Andy Wilkinson
+ */
+public class ServiceConnectionContextCustomizerFactoryTests {
+
+	private final ServiceConnectionContextCustomizerFactory factory = new ServiceConnectionContextCustomizerFactory();
+
+	@Test
+	void whenClassHasNoServiceConnectionsThenCreateReturnsNull() {
+		assertThat(this.factory.createContextCustomizer(NoServiceConnections.class, null)).isNull();
+	}
+
+	@Test
+	void whenClassHasServiceConnectionsThenCreateReturnsCustomizer() {
+		ServiceConnectionContextCustomizer customizer = (ServiceConnectionContextCustomizer) this.factory
+			.createContextCustomizer(ServiceConnections.class, null);
+		assertThat(customizer).isNotNull();
+		assertThat(customizer.getSources()).hasSize(2);
+	}
+
+	@Test
+	void whenEnclosingClassHasServiceConnectionsThenCreateReturnsCustomizer() {
+		ServiceConnectionContextCustomizer customizer = (ServiceConnectionContextCustomizer) this.factory
+			.createContextCustomizer(NestedClass.class, null);
+		assertThat(customizer).isNotNull();
+		assertThat(customizer.getSources()).hasSize(3);
+	}
+
+	@Test
+	void whenClassHasNonStaticServiceConnectionThenCreateShouldFailWithHelpfulIllegalStateException() {
+		assertThatIllegalStateException()
+			.isThrownBy(() -> this.factory.createContextCustomizer(NonStaticServiceConnection.class, null))
+			.withMessage("@ServiceConnection field 'service' must be static");
+	}
+
+	static class NoServiceConnections {
+
+	}
+
+	static class ServiceConnections {
+
+		@ServiceConnection(TestConnectionDetails.class)
+		private static GenericContainer<?> service1 = new GenericContainer<>("example");
+
+		@ServiceConnection(TestConnectionDetails.class)
+		private static GenericContainer<?> service2 = new GenericContainer<>("example");
+
+		@Nested
+		class NestedClass {
+
+			@ServiceConnection(TestConnectionDetails.class)
+			private static GenericContainer<?> service3 = new GenericContainer<>("example");
+
+		}
+
+	}
+
+	static class NonStaticServiceConnection {
+
+		@ServiceConnection(TestConnectionDetails.class)
+		private GenericContainer<?> service = new GenericContainer<>("example");
+
+	}
+
+	static class TestConnectionDetails implements ConnectionDetails {
+
+	}
+
+}

spring-boot-project/spring-boot-testcontainers/src/test/java/org/springframework/boot/testcontainers/service/connection/amqp/RabbitServiceConnectionTests.java

@@ -0,0 +1,98 @@
+/*
+ * Copyright 2012-2023 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.service.connection.amqp;
+
+import java.time.Duration;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.awaitility.Awaitility;
+import org.junit.jupiter.api.Test;
+import org.testcontainers.containers.RabbitMQContainer;
+import org.testcontainers.junit.jupiter.Container;
+import org.testcontainers.junit.jupiter.Testcontainers;
+import org.testcontainers.utility.DockerImageName;
+
+import org.springframework.amqp.rabbit.annotation.Queue;
+import org.springframework.amqp.rabbit.annotation.RabbitListener;
+import org.springframework.amqp.rabbit.core.RabbitTemplate;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.autoconfigure.ImportAutoConfiguration;
+import org.springframework.boot.autoconfigure.amqp.RabbitAutoConfiguration;
+import org.springframework.boot.autoconfigure.amqp.RabbitConnectionDetails;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.test.context.junit.jupiter.SpringJUnitConfig;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for {@link RabbitServiceConnection}.
+ *
+ * @author Moritz Halbritter
+ * @author Andy Wilkinson
+ * @author Phillip Webb
+ */
+@SpringJUnitConfig
+@Testcontainers(disabledWithoutDocker = true)
+class RabbitServiceConnectionTests {
+
+	@Container
+	@RabbitServiceConnection
+	static final RabbitMQContainer rabbit = new RabbitMQContainer(DockerImageName.parse("rabbitmq:3.11-alpine"));
+
+	@Autowired(required = false)
+	private RabbitConnectionDetails connectionDetails;
+
+	@Autowired
+	private RabbitTemplate rabbitTemplate;
+
+	@Autowired
+	private TestListener listener;
+
+	@Test
+	void connectionCanBeMadeToRabbitContainer() {
+		assertThat(this.connectionDetails).isNotNull();
+		this.rabbitTemplate.convertAndSend("test", "message");
+		Awaitility.waitAtMost(Duration.ofMinutes(4))
+			.untilAsserted(() -> assertThat(this.listener.messages).containsExactly("message"));
+
+	}
+
+	@Configuration(proxyBeanMethods = false)
+	@ImportAutoConfiguration(RabbitAutoConfiguration.class)
+	static class TestConfiguration {
+
+		@Bean
+		TestListener testListener() {
+			return new TestListener();
+		}
+
+	}
+
+	static class TestListener {
+
+		private final List<String> messages = new ArrayList<>();
+
+		@RabbitListener(queuesToDeclare = @Queue("test"))
+		void processMessage(String message) {
+			this.messages.add(message);
+		}
+
+	}
+
+}

spring-boot-project/spring-boot-testcontainers/src/test/java/org/springframework/boot/testcontainers/service/connection/influx/InfluxDbServiceConnectionTests.java

@@ -0,0 +1,66 @@
+/*
+ * Copyright 2012-2023 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.service.connection.influx;
+
+import org.influxdb.InfluxDB;
+import org.junit.jupiter.api.Test;
+import org.testcontainers.containers.InfluxDBContainer;
+import org.testcontainers.junit.jupiter.Container;
+import org.testcontainers.junit.jupiter.Testcontainers;
+import org.testcontainers.utility.DockerImageName;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.autoconfigure.ImportAutoConfiguration;
+import org.springframework.boot.autoconfigure.influx.InfluxDbAutoConfiguration;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.test.context.junit.jupiter.SpringJUnitConfig;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for {@link InfluxDbServiceConnection}.
+ *
+ * @author Moritz Halbritter
+ * @author Andy Wilkinson
+ * @author Phillip Webb
+ */
+@SpringJUnitConfig
+@Testcontainers(disabledWithoutDocker = true)
+class InfluxDbServiceConnectionTests {
+
+	private static final String INFLUXDB_VERSION = "2.6.1";
+
+	@Container
+	@InfluxDbServiceConnection
+	static final InfluxDBContainer<?> influxDbService = new InfluxDBContainer<>(
+			DockerImageName.parse("influxdb").withTag(INFLUXDB_VERSION));
+
+	@Autowired
+	private InfluxDB influxDb;
+
+	@Test
+	void connectionCanBeMadeToInfluxDbContainer() {
+		assertThat(this.influxDb.version()).isEqualTo("v" + INFLUXDB_VERSION);
+	}
+
+	@Configuration(proxyBeanMethods = false)
+	@ImportAutoConfiguration(InfluxDbAutoConfiguration.class)
+	static class TestConfiguration {
+
+	}
+
+}

spring-boot-project/spring-boot-testcontainers/src/test/java/org/springframework/boot/testcontainers/service/connection/kafka/KafkaServiceConnectionTests.java

@@ -0,0 +1,94 @@
+/*
+ * Copyright 2012-2023 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.service.connection.kafka;
+
+import java.time.Duration;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.awaitility.Awaitility;
+import org.junit.jupiter.api.Test;
+import org.testcontainers.containers.KafkaContainer;
+import org.testcontainers.junit.jupiter.Container;
+import org.testcontainers.junit.jupiter.Testcontainers;
+import org.testcontainers.utility.DockerImageName;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.autoconfigure.ImportAutoConfiguration;
+import org.springframework.boot.autoconfigure.kafka.KafkaAutoConfiguration;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.kafka.annotation.KafkaListener;
+import org.springframework.kafka.core.KafkaTemplate;
+import org.springframework.test.context.TestPropertySource;
+import org.springframework.test.context.junit.jupiter.SpringJUnitConfig;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for {@link KafkaServiceConnection}.
+ *
+ * @author Moritz Halbritter
+ * @author Andy Wilkinson
+ * @author Phillip Webb
+ */
+@SpringJUnitConfig
+@Testcontainers(disabledWithoutDocker = true)
+@TestPropertySource(properties = { "spring.kafka.consumer.group-id=test-group",
+		"spring.kafka.consumer.auto-offset-reset=earliest" })
+class KafkaServiceConnectionTests {
+
+	@Container
+	@KafkaServiceConnection
+	static final KafkaContainer kafka = new KafkaContainer(DockerImageName.parse("confluentinc/cp-kafka:5.4.3"));
+
+	@Autowired
+	private KafkaTemplate<String, String> kafkaTemplate;
+
+	@Autowired
+	private TestListener listener;
+
+	@Test
+	void connectionCanBeMadeToKafkaContainer() {
+		this.kafkaTemplate.send("test-topic", "test-data");
+		Awaitility.waitAtMost(Duration.ofMinutes(4))
+			.untilAsserted(() -> assertThat(this.listener.messages).containsExactly("test-data"));
+	}
+
+	@Configuration(proxyBeanMethods = false)
+	@ImportAutoConfiguration(KafkaAutoConfiguration.class)
+	static class TestConfiguration {
+
+		@Bean
+		TestListener testListener() {
+			return new TestListener();
+		}
+
+	}
+
+	static class TestListener {
+
+		private final List<String> messages = new ArrayList<>();
+
+		@KafkaListener(topics = "test-topic")
+		void processMessage(String message) {
+			this.messages.add(message);
+		}
+
+	}
+
+}

spring-boot-project/spring-boot-testcontainers/src/test/resources/logback-test.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+	<include resource="org/springframework/boot/logging/logback/base.xml"/>
+</configuration>