/*
 * Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 * for details. All rights reserved. Use of this source code is governed by a
 * BSD-style license that can be found in the LICENSE file.
 */
/**
 * @assertion Passing null as either argument results in ArgumentError
 * @description Tries to pass null as either argument and expects an
 * ArgumentError
 * @author msyabro
 */
import "../../../Utils/expect.dart";

main() {
  check("a", null);
  check(null, "");
  check(null, null);
}

void check(Pattern from, String to) {
  Expect.throws(() {"aaa".replaceFirst(from, to);}, (e) => e is ArgumentError);
}