2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2020 Pantheon.tech
4 * ================================================================================
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
16 * SPDX-License-Identifier: Apache-2.0
17 * ============LICENSE_END=========================================================
22 import org.testcontainers.containers.PostgreSQLContainer;
25 * The Postgresql database test container wrapper.
26 * Singleton implementation allows saving time on database initialization which
27 * otherwise would occur on each test.
29 public class DatabaseTestContainer extends PostgreSQLContainer<DatabaseTestContainer> {
30 private static final String IMAGE_VERSION = "postgres:11.1";
31 private static DatabaseTestContainer databaseTestContainer;
33 private DatabaseTestContainer() {
38 * Provides an instance of test container wrapper.
39 * The returned value expected to be assigned to static variable annotated with @ClassRule.
40 * This will allow to initialize DB connection env variables before DataSource object
41 * is initialized by Spring framework.
44 public static DatabaseTestContainer getInstance() {
45 if (databaseTestContainer == null) {
46 databaseTestContainer = new DatabaseTestContainer();
47 Runtime.getRuntime().addShutdownHook(new Thread(databaseTestContainer::terminate));
49 return databaseTestContainer;
55 System.setProperty("DB_URL", databaseTestContainer.getJdbcUrl());
56 System.setProperty("DB_USERNAME", databaseTestContainer.getUsername());
57 System.setProperty("DB_PASSWORD", databaseTestContainer.getPassword());
62 // do nothing on test completion, image removal will be performed via terminate() on JVM shutdown
65 private void terminate() {