flutter/examples/flutter_gallery/test/smoke_test.dart
Matt Perry 60e7535b58 Pesto demo for the Flutter Gallery app. (#4328)
* Pesto demo for the Flutter Gallery app.

* pesto.special.case
2016-06-03 17:05:01 -04:00

122 lines
4.5 KiB
Dart

// Copyright 2016 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:flutter_gallery/gallery/app.dart' as flutter_gallery_app;
import 'package:flutter_gallery/gallery/item.dart' as flutter_gallery_item;
import 'package:flutter_gallery/main.dart' as flutter_gallery_main;
// Warning: the following strings must be kept in sync with GalleryHome.
const List<String> demoCategories = const <String>[
'Demos',
'Components',
'Style'
];
Finder findGalleryItemByRouteName(WidgetTester tester, String routeName) {
return find.byWidgetPredicate((Widget widget) {
return widget is flutter_gallery_item.GalleryItem &&
widget.routeName == routeName;
});
}
Finder byTooltip(WidgetTester tester, String message) {
return find.byWidgetPredicate((Widget widget) {
return widget is Tooltip && widget.message == message;
});
}
Finder findNavigationMenuButton(WidgetTester tester) =>
byTooltip(tester, 'Open navigation menu');
Finder findBackButton(WidgetTester tester) => byTooltip(tester, 'Back');
// Start a gallery demo and then go back. This function assumes that the
// we're starting on home route and that the submenu that contains the demo
// called 'name' is already open.
Future<Null> smokeDemo(WidgetTester tester, String routeName) async {
// Ensure that we're (likely to be) on the home page
final Finder menuItem = findGalleryItemByRouteName(tester, routeName);
expect(menuItem, findsOneWidget);
await tester.tap(menuItem);
await tester.pump(); // Launch the demo.
await tester
.pump(const Duration(seconds: 1)); // Wait until the demo has opened.
// Go back
if (routeName == '/pesto') {
// TODO(mpcomplete): workaround for Pesto, which has a drawer instead of a
// back button. Figure out how to have both.
Finder drawer = find.byType(Scaffold); // get a Widget for the BuildContext
expect(drawer, findsOneWidget);
Navigator.pop(drawer.evaluate().first);
} else {
Finder backButton = findBackButton(tester);
expect(backButton, findsOneWidget);
await tester.tap(backButton);
await tester.pump(); // Start the pop "back" operation.
}
await tester.pump(const Duration(seconds: 1)); // Wait until it has finished.
return null;
}
void main() {
TestWidgetsFlutterBinding binding =
TestWidgetsFlutterBinding.ensureInitialized();
if (binding is LiveTestWidgetsFlutterBinding) binding.allowAllFrames = true;
testWidgets('Flutter Gallery app smoke test', (WidgetTester tester) async {
flutter_gallery_main
.main(); // builds the app and schedules a frame but doesn't trigger one
await tester.pump(); // see https://github.com/flutter/flutter/issues/1865
await tester.pump(); // triggers a frame
// Expand the demo category submenus.
for (String category in demoCategories.reversed) {
await tester.tap(find.text(category));
await tester.pump();
await tester.pump(
const Duration(seconds: 1)); // Wait until the menu has expanded.
}
final List<double> scrollDeltas = new List<double>();
double previousY = tester.getTopRight(find.text(demoCategories[0])).y;
final List<String> routeNames = flutter_gallery_app.kRoutes.keys.toList();
for (String routeName in routeNames) {
final double y =
tester.getTopRight(findGalleryItemByRouteName(tester, routeName)).y;
scrollDeltas.add(previousY - y);
previousY = y;
}
// Launch each demo and then scroll that item out of the way.
for (int i = 0; i < routeNames.length; i += 1) {
final String routeName = routeNames[i];
await smokeDemo(tester, routeName);
await tester.scroll(findGalleryItemByRouteName(tester, routeName),
new Offset(0.0, scrollDeltas[i]));
await tester.pump();
}
Finder navigationMenuButton = findNavigationMenuButton(tester);
expect(navigationMenuButton, findsOneWidget);
await tester.tap(navigationMenuButton);
await tester.pump(); // Start opening drawer.
await tester
.pump(const Duration(seconds: 1)); // Wait until it's really opened.
// switch theme
await tester.tap(find.text('Dark'));
await tester.pump();
await tester.pump(const Duration(seconds: 1)); // Wait until it's changed.
// switch theme
await tester.tap(find.text('Light'));
await tester.pump();
await tester.pump(const Duration(seconds: 1)); // Wait until it's changed.
});
}