mirror of https://github.com/flutter/samples.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
41 lines
1.4 KiB
41 lines
1.4 KiB
// Copyright 2020 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:flutter_test/flutter_test.dart';
|
|
|
|
import 'package:infinitelist/main.dart';
|
|
|
|
void main() {
|
|
testWidgets('Infinite list smoke test', (tester) async {
|
|
await tester.pumpWidget(const MyApp());
|
|
|
|
const loadingDuration = Duration(milliseconds: 500);
|
|
|
|
// At first, the catalog shows only "..." (loading items).
|
|
expect(find.text('...'), findsWidgets);
|
|
expect(find.text('Color #1'), findsNothing);
|
|
|
|
await tester.pump(loadingDuration);
|
|
|
|
// After the app has had a chance to load items, it should no longer
|
|
// show "...".
|
|
expect(find.text('...'), findsNothing);
|
|
expect(find.text('Color #1'), findsOneWidget);
|
|
|
|
// Flinging up quickly (i.e. scrolling down).
|
|
await tester.fling(find.byType(ListView), const Offset(0, -2000), 5000);
|
|
|
|
// As we scroll down, we should see more items loading.
|
|
expect(find.text('...'), findsWidgets);
|
|
// The item at the top should no longer be in view.
|
|
expect(find.text('Color #1'), findsNothing);
|
|
|
|
// This last part is just giving the app time to complete its "fetch"
|
|
// of new items. Otherwise, the test fails because of outstanding
|
|
// asynchronous callbacks.
|
|
await tester.pump(loadingDuration);
|
|
});
|
|
}
|