@Then("the library contains a no book with an <attribute> of <value>")
 public void thenTheDatabaseContainsANoEntryForBookisbn(
     @Named("attribute") String attribute, @Named("value") String value) throws SQLException {
   waitForServerResponse();
   database.shouldReturnNothing(
       "SELECT * FROM book WHERE " + getColumnForAttribute(attribute) + " = '" + value + "'");
 }
 @Then("books <isbns> are not borrowed anymore by user <user>")
 public void shouldNotBorrowBooks(@Named("isbns") String isbns, @Named("user") String user)
     throws SQLException {
   waitForServerResponse();
   database.shouldReturnNothing(
       "SELECT * FROM borrowing WHERE borrower_email_address='" + user + "'");
 }
 @Then("the book <isbn> is not available for borrowing anymore")
 public void shouldNotBeAvailableForBorrowing(@Named("isbn") String isbn) throws SQLException {
   waitForServerResponse();
   database.shouldReturnNothing(
       "SELECT * FROM book WHERE isbn = '" + isbn + "' AND current_borrowing_id is null");
 }