Populate a database with TestContainers in a SpringBoot integration test

Question

I am testing TestContainers and I would like to know how to populate a database executing a .sql file to create the structure and add some rows.

How to do it?

Answer 1

Spring framework provides the ability to execute SQL scripts for test suites or for a test unit. For example:

@Test
@Sql({"/test-schema.sql", "/test-user-data.sql"}) 
public void userTest {
   // execute code that relies on the test schema and test data
}

Here's the documentation.

You can also take a look at Spring Test DBUnit which provides annotations to populate your database for a test unit. It uses XML dataset files.

@Test
@DatabaseSetup(value = "insert.xml")
@DatabaseTearDown(value = "insert.xml")
public void testInsert() throws Exception {
     // Inserts "insert.xml" before test execution
     // Remove "insert.xml" after test execution
}

Also, you can take a look at DbSetup, which provides a java fluent DSL to populate your database.