flutter/packages/unit/test/widget/draggable_test.dart
Hixie d041f3ead5 More resilient Widget tests
- force the time dilation to 1.0 for the Widget tests, so that a local
  change doesn't break all the tests during development.
- add missing license block to all the files.
- set ui.window.onBeginFrame to null when you use WidgetTester, so that
  the engine doesn't trigger any confusing frames after our fake frames.
2015-11-16 12:29:25 -08:00

75 lines
2.3 KiB
Dart

// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter/material.dart';
import 'package:test/test.dart';
import '../engine/mock_events.dart';
import 'widget_tester.dart';
void main() {
test('Drag and drop - control test', () {
testWidgets((WidgetTester tester) {
TestPointer pointer = new TestPointer(7);
List accepted = [];
tester.pumpWidget(new MaterialApp(
routes: <String, RouteBuilder>{
'/': (RouteArguments args) { return new Column(<Widget>[
new Draggable(
data: 1,
child: new Text('Source'),
feedback: new Text('Dragging')
),
new DragTarget(
builder: (context, data, rejects) {
return new Container(
height: 100.0,
child: new Text('Target')
);
},
onAccept: (data) {
accepted.add(data);
}
),
]);
},
}
));
expect(accepted, isEmpty);
expect(tester.findText('Source'), isNotNull);
expect(tester.findText('Dragging'), isNull);
expect(tester.findText('Target'), isNotNull);
Point firstLocation = tester.getCenter(tester.findText('Source'));
tester.dispatchEvent(pointer.down(firstLocation), firstLocation);
tester.pump();
expect(accepted, isEmpty);
expect(tester.findText('Source'), isNotNull);
expect(tester.findText('Dragging'), isNotNull);
expect(tester.findText('Target'), isNotNull);
Point secondLocation = tester.getCenter(tester.findText('Target'));
tester.dispatchEvent(pointer.move(secondLocation), firstLocation);
tester.pump();
expect(accepted, isEmpty);
expect(tester.findText('Source'), isNotNull);
expect(tester.findText('Dragging'), isNotNull);
expect(tester.findText('Target'), isNotNull);
tester.dispatchEvent(pointer.up(), firstLocation);
tester.pump();
expect(accepted, equals([1]));
expect(tester.findText('Source'), isNotNull);
expect(tester.findText('Dragging'), isNull);
expect(tester.findText('Target'), isNotNull);
});
});
}