[Minor] schema must be dropped in all tests...

src/test/java/li/strolch/persistence/postgresql/dao/test/ObserverUpdateTest.java

@@ -20,6 +20,7 @@ import static li.strolch.model.ModelGenerator.createResource;
 import static org.junit.Assert.assertEquals;
 
 import java.io.File;
+import java.sql.SQLException;
 import java.util.Date;
 import java.util.HashMap;
 import java.util.List;
@@ -56,7 +57,9 @@ public class ObserverUpdateTest {
 	}
 
 	@BeforeClass
-	public static void beforeClass() {
+	public static void beforeClass() throws SQLException {
+
+		XmlCachedDaoTest.dropSchema();
 
 		File rootPath = new File(RUNTIME_PATH);
 		File configSrc = new File(CONFIG_SRC);

src/test/java/li/strolch/persistence/postgresql/dao/test/XmlCachedDaoTest.java

@@ -57,7 +57,7 @@ public class XmlCachedDaoTest extends AbstractModelTest {
 		runtimeMock.startContainer(rootPath);
 	}
 
-	private static void dropSchema() throws SQLException {
+	public static void dropSchema() throws SQLException {
 		String dbVersion = DbSchemaVersionCheck.getExpectedDbVersion();
 		String sql = DbSchemaVersionCheck.getSql(dbVersion, "drop"); //$NON-NLS-1$
 		try (Connection connection = DriverManager.getConnection(DB_URL, DB_USERNAME, DB_PASSWORD)) {