Add ServiceConnection support for LLdapContainer (Testcontainers)

See gh-44389

Signed-off-by: Eddú Meléndez <eddu.melendez@gmail.com>

spring-boot-project/spring-boot-docs/src/docs/antora/modules/reference/pages/testing/testcontainers.adoc

@@ -62,6 +62,9 @@ The following service connection factories are provided in the `spring-boot-test
 | javadoc:org.springframework.boot.autoconfigure.kafka.KafkaConnectionDetails[]
 | Containers of type javadoc:org.testcontainers.kafka.KafkaContainer[], javadoc:org.testcontainers.kafka.ConfluentKafkaContainer[] or javadoc:org.testcontainers.redpanda.RedpandaContainer[]
 
+| javadoc:org.springframework.boot.autoconfigure.ldap.LdapConnectionDetails[]
+| Containers named "osixia/openldap" or of type javadoc:org.testcontainers.ldap.LLdapContainer[]
+
 | javadoc:org.springframework.boot.autoconfigure.liquibase.LiquibaseConnectionDetails[]
 | Containers of type javadoc:{url-testcontainers-jdbc-javadoc}/org.testcontainers.containers.JdbcDatabaseContainer[]
 

spring-boot-project/spring-boot-testcontainers/build.gradle

@@ -70,6 +70,7 @@ dependencies {
 	optional("org.testcontainers:grafana")
 	optional("org.testcontainers:jdbc")
 	optional("org.testcontainers:kafka")
+	optional("org.testcontainers:ldap")
 	optional("org.testcontainers:mariadb")
 	optional("org.testcontainers:mongodb")
 	optional("org.testcontainers:mssqlserver")

spring-boot-project/spring-boot-testcontainers/src/dockerTest/java/org/springframework/boot/testcontainers/service/connection/ldap/LLdapContainerConnectionDetailsFactoryIntegrationTests.java

@@ -0,0 +1,68 @@
+/*
+ * Copyright 2012-2025 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.ldap;
+
+import java.util.List;
+
+import org.junit.jupiter.api.Test;
+import org.testcontainers.junit.jupiter.Container;
+import org.testcontainers.junit.jupiter.Testcontainers;
+import org.testcontainers.ldap.LLdapContainer;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.autoconfigure.ImportAutoConfiguration;
+import org.springframework.boot.autoconfigure.ldap.LdapAutoConfiguration;
+import org.springframework.boot.testcontainers.service.connection.ServiceConnection;
+import org.springframework.boot.testsupport.container.TestImage;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.ldap.core.AttributesMapper;
+import org.springframework.ldap.core.LdapTemplate;
+import org.springframework.ldap.query.LdapQueryBuilder;
+import org.springframework.test.context.junit.jupiter.SpringJUnitConfig;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for {@link LLdapContainerConnectionDetailsFactory}.
+ *
+ * @author Eddú Meléndez
+ */
+@SpringJUnitConfig
+@Testcontainers(disabledWithoutDocker = true)
+class LLdapContainerConnectionDetailsFactoryIntegrationTests {
+
+	@Container
+	@ServiceConnection
+	static final LLdapContainer lldap = TestImage.container(LLdapContainer.class);
+
+	@Autowired
+	private LdapTemplate ldapTemplate;
+
+	@Test
+	void connectionCanBeMadeToLdapContainer() {
+		List<String> cn = this.ldapTemplate.search(LdapQueryBuilder.query().where("objectClass").is("inetOrgPerson"),
+				(AttributesMapper<String>) (attributes) -> attributes.get("cn").get().toString());
+		assertThat(cn).singleElement().isEqualTo("Administrator");
+	}
+
+	@Configuration(proxyBeanMethods = false)
+	@ImportAutoConfiguration({ LdapAutoConfiguration.class })
+	static class TestConfiguration {
+
+	}
+
+}

spring-boot-project/spring-boot-testcontainers/src/main/java/org/springframework/boot/testcontainers/service/connection/ldap/LLdapContainerConnectionDetailsFactory.java

@@ -0,0 +1,69 @@
+/*
+ * Copyright 2012-2025 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.ldap;
+
+import org.testcontainers.ldap.LLdapContainer;
+
+import org.springframework.boot.autoconfigure.ldap.LdapConnectionDetails;
+import org.springframework.boot.testcontainers.service.connection.ContainerConnectionDetailsFactory;
+import org.springframework.boot.testcontainers.service.connection.ContainerConnectionSource;
+import org.springframework.boot.testcontainers.service.connection.ServiceConnection;
+
+/**
+ * {@link ContainerConnectionDetailsFactory} to create {@link LdapConnectionDetails} from
+ * a {@link ServiceConnection @ServiceConnection}-annotated {@link LLdapContainer}.
+ *
+ * @author Eddú Meléndez
+ */
+class LLdapContainerConnectionDetailsFactory
+		extends ContainerConnectionDetailsFactory<LLdapContainer, LdapConnectionDetails> {
+
+	@Override
+	protected LdapConnectionDetails getContainerConnectionDetails(ContainerConnectionSource<LLdapContainer> source) {
+		return new LLdapContainerConnectionDetails(source);
+	}
+
+	private static final class LLdapContainerConnectionDetails extends ContainerConnectionDetails<LLdapContainer>
+			implements LdapConnectionDetails {
+
+		private LLdapContainerConnectionDetails(ContainerConnectionSource<LLdapContainer> source) {
+			super(source);
+		}
+
+		@Override
+		public String[] getUrls() {
+			return new String[] { getContainer().getLdapUrl() };
+		}
+
+		@Override
+		public String getBase() {
+			return getContainer().getBaseDn();
+		}
+
+		@Override
+		public String getUsername() {
+			return getContainer().getUser();
+		}
+
+		@Override
+		public String getPassword() {
+			return getContainer().getUserPass();
+		}
+
+	}
+
+}

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

@@ -22,6 +22,7 @@ org.springframework.boot.testcontainers.service.connection.jdbc.JdbcContainerCon
 org.springframework.boot.testcontainers.service.connection.kafka.ApacheKafkaContainerConnectionDetailsFactory,\
 org.springframework.boot.testcontainers.service.connection.kafka.ConfluentKafkaContainerConnectionDetailsFactory,\
 org.springframework.boot.testcontainers.service.connection.kafka.DeprecatedConfluentKafkaContainerConnectionDetailsFactory,\
+org.springframework.boot.testcontainers.service.connection.ldap.LLdapContainerConnectionDetailsFactory,\
 org.springframework.boot.testcontainers.service.connection.ldap.OpenLdapContainerConnectionDetailsFactory,\
 org.springframework.boot.testcontainers.service.connection.liquibase.LiquibaseContainerConnectionDetailsFactory,\
 org.springframework.boot.testcontainers.service.connection.mongo.MongoContainerConnectionDetailsFactory,\