Add Docker Compose support for Neo4j

Closes gh-37379

spring-boot-project/spring-boot-docker-compose/src/test/java/org/springframework/boot/docker/compose/service/connection/neo4j/Neo4jDockerComposeConnectionDetailsFactoryIntegrationTests.java

@@ -0,0 +1,51 @@
+/*
+ * 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.docker.compose.service.connection.neo4j;
+
+import org.junit.jupiter.api.Test;
+import org.neo4j.driver.AuthTokens;
+import org.neo4j.driver.Driver;
+import org.neo4j.driver.GraphDatabase;
+
+import org.springframework.boot.autoconfigure.neo4j.Neo4jConnectionDetails;
+import org.springframework.boot.docker.compose.service.connection.test.AbstractDockerComposeIntegrationTests;
+import org.springframework.boot.testsupport.testcontainers.DockerImageNames;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatNoException;
+
+/**
+ * Integration tests for {@link Neo4jDockerComposeConnectionDetailsFactory}.
+ *
+ * @author Andy Wilkinson
+ */
+class Neo4jDockerComposeConnectionDetailsFactoryIntegrationTests extends AbstractDockerComposeIntegrationTests {
+
+	Neo4jDockerComposeConnectionDetailsFactoryIntegrationTests() {
+		super("neo4j-compose.yaml", DockerImageNames.neo4j());
+	}
+
+	@Test
+	void runCreatesConnectionDetailsThatCanAccessNeo4j() {
+		Neo4jConnectionDetails connectionDetails = run(Neo4jConnectionDetails.class);
+		assertThat(connectionDetails.getAuthToken()).isEqualTo(AuthTokens.basic("neo4j", "secret"));
+		try (Driver driver = GraphDatabase.driver(connectionDetails.getUri(), connectionDetails.getAuthToken())) {
+			assertThatNoException().isThrownBy(driver::verifyConnectivity);
+		}
+	}
+
+}

spring-boot-project/spring-boot-docker-compose/src/test/java/org/springframework/boot/docker/compose/service/connection/neo4j/Neo4jEnvironmentTests.java

@@ -0,0 +1,59 @@
+/*
+ * 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.docker.compose.service.connection.neo4j;
+
+import java.util.Collections;
+import java.util.Map;
+
+import org.junit.jupiter.api.Test;
+import org.neo4j.driver.AuthTokens;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatIllegalStateException;
+
+/**
+ * Tests for {@link Neo4jEnvironment}.
+ *
+ * @author Andy Wilkinson
+ */
+class Neo4jEnvironmentTests {
+
+	@Test
+	void whenNeo4jAuthIsNullThenAuthTokenIsNull() {
+		Neo4jEnvironment environment = new Neo4jEnvironment(Collections.emptyMap());
+		assertThat(environment.getAuthToken()).isNull();
+	}
+
+	@Test
+	void whenNeo4jAuthIsNoneThenAuthTokenIsNone() {
+		Neo4jEnvironment environment = new Neo4jEnvironment(Map.of("NEO4J_AUTH", "none"));
+		assertThat(environment.getAuthToken()).isEqualTo(AuthTokens.none());
+	}
+
+	@Test
+	void whenNeo4jAuthIsNeo4jSlashPasswordThenAuthTokenIsBasic() {
+		Neo4jEnvironment environment = new Neo4jEnvironment(Map.of("NEO4J_AUTH", "neo4j/custom-password"));
+		assertThat(environment.getAuthToken()).isEqualTo(AuthTokens.basic("neo4j", "custom-password"));
+	}
+
+	@Test
+	void whenNeo4jAuthIsNeitherNoneNorNeo4jSlashPasswordEnvironmentCreationThrows() {
+		assertThatIllegalStateException()
+			.isThrownBy(() -> new Neo4jEnvironment(Map.of("NEO4J_AUTH", "graphdb/custom-password")));
+	}
+
+}

spring-boot-project/spring-boot-docker-compose/src/test/resources/org/springframework/boot/docker/compose/service/connection/neo4j/neo4j-compose.yaml

@@ -0,0 +1,8 @@
+services:
+  neo4j:
+    image: '{imageName}'
+    ports:
+      - '7687'
+    environment:
+      - 'NEO4J_AUTH=neo4j/secret'
+