tests/lib/html/element_animate_timing_dict_test.dart

// Copyright (c) 2020, 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.

library element_animate_test;

import 'dart:async';
import 'dart:html';

import 'package:expect/legacy/async_minitest.dart'; // ignore: deprecated_member_use

main() {
  test('timing dict', () {
    if (Animation.supported) {
      var body = document.body!;
      // Animate different characteristics so the tests can run concurrently.
      var fontSize = body.getComputedStyle().fontSize;
      var player = body.animate(
        [
          {"font-size": "500px"},
          {"font-size": fontSize},
        ],
        {"duration": 100},
      );
      var newFontSize = body.getComputedStyle().fontSize;
      // Don't bother to parse to numbers, as long as it's changed that
      // indicates something is happening.
      expect(newFontSize == fontSize, isFalse);
      player.on['finish'].listen(expectAsync((_) => 'done'));
    }
  });
}