2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2020 Pantheon.tech
4 * Modifications Copyright (C) 2022 Nordix Foundation.
5 * ================================================================================
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
17 * SPDX-License-Identifier: Apache-2.0
18 * ============LICENSE_END=========================================================
23 import org.testcontainers.containers.PostgreSQLContainer;
26 * The Postgresql database test container wrapper.
27 * Singleton implementation allows saving time on database initialization which otherwise would occur on each test.
28 * for debugging/developing purposes you can suspend any test and connect to this database:
29 * docker exec -it {container-id} sh
30 * psql -d test -U test
32 public class DatabaseTestContainer extends PostgreSQLContainer<DatabaseTestContainer> {
33 private static final String IMAGE_VERSION = "postgres:14.1";
34 private static DatabaseTestContainer databaseTestContainer;
36 private DatabaseTestContainer() {
41 * Provides an instance of test container wrapper.
42 * The returned value expected to be assigned to static variable annotated with @ClassRule.
43 * This will allow to initialize DB connection env variables before DataSource object
44 * is initialized by Spring framework.
47 public static DatabaseTestContainer getInstance() {
48 if (databaseTestContainer == null) {
49 databaseTestContainer = new DatabaseTestContainer();
50 Runtime.getRuntime().addShutdownHook(new Thread(databaseTestContainer::terminate));
52 return databaseTestContainer;
58 System.setProperty("DB_URL", databaseTestContainer.getJdbcUrl());
59 System.setProperty("DB_USERNAME", databaseTestContainer.getUsername());
60 System.setProperty("DB_PASSWORD", databaseTestContainer.getPassword());
65 // do nothing on test completion, image removal will be performed via terminate() on JVM shutdown
68 private void terminate() {