Delete polymer from the Dart repo

pkg/polymer/test/custom_event_test.dart

-// Copyright (c) 2013, 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 polymer.test.web.custom_event_test;
-
-import 'dart:async';
-import 'dart:html';
-import 'package:polymer/polymer.dart';
-import 'package:template_binding/template_binding.dart'
-    show nodeBind, enableBindingsReflection;
-import 'package:unittest/unittest.dart';
-import 'package:unittest/html_config.dart';
-
-
-@CustomTag('foo-bar')
-class FooBar extends PolymerElement {
-  // A little too much boilerplate?
-  static const EventStreamProvider<CustomEvent> fooEvent =
-      const EventStreamProvider<CustomEvent>('foo');
-  static const EventStreamProvider<CustomEvent> barBazEvent =
-      const EventStreamProvider<CustomEvent>('barbaz');
-
-  FooBar.created() : super.created();
-
-  Stream<CustomEvent> get onFooEvent =>
-      FooBar.fooEvent.forTarget(this);
-  Stream<CustomEvent> get onBarBazEvent =>
-      FooBar.barBazEvent.forTarget(this);
-
-  fireFoo(x) => dispatchEvent(new CustomEvent('foo', detail: x));
-  fireBarBaz(x) => dispatchEvent(new CustomEvent('barbaz', detail: x));
-}
-
-@CustomTag('test-custom-event')
-class TestCustomEvent extends PolymerElement {
-  TestCustomEvent.created() : super.created();
-
-  get fooBar => shadowRoots['test-custom-event'].querySelector('foo-bar');
-
-  final events = [];
-  fooHandler(e) => events.add(['foo', e]);
-  barBazHandler(e) => events.add(['barbaz', e]);
-}
-
-main() {
-  enableBindingsReflection = true;
-
-  initPolymer().run(() {
-    useHtmlConfiguration();
-
-    setUp(() => Polymer.onReady);
-
-    test('custom event', () {
-      final testComp = querySelector('test-custom-event');
-      final fooBar = testComp.fooBar;
-
-      final binding = nodeBind(fooBar).bindings['on-barbaz'];
-      expect(binding is Bindable, true,
-          reason: 'on-barbaz event should be bound');
-
-      expect(binding.value, '{{ barBazHandler }}',
-          reason: 'event bindings use the string as value');
-
-      fooBar.fireFoo(123);
-      fooBar.fireBarBaz(42);
-      fooBar.fireFoo(777);
-
-      final events = testComp.events;
-      expect(events.length, 3);
-      expect(events.map((e) => e[0]), ['foo', 'barbaz', 'foo']);
-      expect(events.map((e) => e[1].detail), [123, 42, 777]);
-    });
-  });
-}