![]() ("MySQL started successfully " + System. Throw new RuntimeException("MySQL did not start.") MysqldResource.start("embedded-mysqld-thread-" + System.currentTimeMillis(), MysqldResource = new MysqldResource(databaseDir) ĭatabase_options.put(MysqldResourceI.PORT, Integer.toString(port)) ĭatabase_options.put(MysqldResourceI.INITIALIZE_USER, "true") ĭatabase_options.put(MysqldResourceI.INITIALIZE_USER_NAME, username) ĭatabase_options.put(MysqldResourceI.INITIALIZE_PASSWORD, password) Since Spring Boot 3.1.0 there is first-class support for Testcontainers, making our live even easier. Besides spring-boot-starter-test we also add :spring-boot-testcontainers. bug("=") įile databaseDir = new File(new File(baseDatabaseDir), databaseName) To write an integration test for our application, we start by adding the required dependencies. bug("baseDatabaseDir : " + baseDatabaseDir) The spring-boot-starter-test is the primary dependency that contains the majority of elements required for our tests. My first try with a SingleConnectionDataSource basically worked, but failed on more complicated tests where you need several connections at the same time or suspended transactions. ![]() bug("= Starting Embedded MySQL using these parameters =") The easiest way for using an in memory database that is fully compatible to MySQL and can be used within JUnit test cases is imho MariaDB4j. The easiest way for using an in memory database that is fully compatible to MySQL and can be used within JUnit test cases is imho MariaDB4j. What does your Spring configuration for integration tests look like using an embedded h2 datasource and, optionally, JUnit. ![]() For this tutorial, we will need the following tools : 1. We will generate and build the project using Gradle and perform unit testing using Junit 5. Private String databaseName = "test_db_" + System.nanoTime() In this tutorial, we will create a simple CRUD User Management Console Application using Java, MySQL, JDBC. Private String baseDatabaseDir = System.getProperty("java.io.tmpdir") Protected Logger logger = LoggerFactory.getLogger(this.getClass()) In our case, we have this utility class that starts the database: import java.io.File Once the driver is on the path of your project, you can just start the database from Java. If you use Maven, you can get it like this: The embedded MySQL is provided with the mysql-connector-mxj. Beside of the suggestions, take in consideration that depending of your needs, HSQL and MySQL doesn't have the same features like merge joins and other SQL non standard features.īecause of this (in our case), we always run our tests over an embedded Mysql.
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