#663 - set database type for unit tests

BudgetMasterDatabaseMigrator/src/test/java/de/deadlocker8/budgetmaster/databasemigrator/MigratorTestBase.java

 package de.deadlocker8.budgetmaster.databasemigrator;
 
 import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeAll;
 import org.springframework.batch.core.JobParameters;
 import org.springframework.batch.core.JobParametersBuilder;
 import org.springframework.batch.test.JobLauncherTestUtils;
@@ -74,6 +75,12 @@ public abstract class MigratorTestBase
 		registry.add("spring.seconddatasource.password", postgresDB::getPassword);
 	}
 
+	@BeforeAll
+	public static void beforeAll()
+	{
+		DatabaseMigratorMain.databaseType = DatabaseType.POSTGRESQL;
+	}
+
 	@TestConfiguration
 	static class DestinationTestDatabaseConfiguration
 	{