static void cleanRepairRequestsDb(MysqlRepairRequestsDb repairRequestsDb) throws SQLException {
    DataSource dataSource = repairRequestsDb.getDataSource();
    try (Connection connection = dataSource.getConnection()) {
      try (Statement statement = connection.createStatement()) {
        statement.executeUpdate("DELETE FROM ambry_repair_requests;");
      }
    }
  }
Cleanup the repair request db
@param repairRequestsDb the repair request db
@throws SQLException
ambry-router/src/test/java/com/github/ambry/router/NonBlockingRouterTest.java