blob: 58c07e89b79e57585cecb7d5f394a23a77242fbb [file] [log] [blame]
// 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 abstract int indexOf(E element, [int start = 0])
/// The first time an object o is encountered so that o == element,
/// the index of o is returned.
/// @description Checks searching custom objects.
/// @author varlax
library indexOf_A05_t01;
import "../../../Utils/expect.dart";
checkList(List list, var elem, int expected) {
Expect.equals(expected, list.indexOf(elem));
class Eq {
bool operator ==(other) => other is Eq;
test(List<E> create<E>([int length, E fill])) {
List a = create<Object?>(10, 0);
checkList(a, 0, 0);
var o = new Object();
a[4] = o;
checkList(a, o, 4);
a[8] = o;
checkList(a, o, 4);
Eq e = new Eq();
a[3] = e;
checkList(a, new Eq(),3);