flutter/examples/flutter_gallery/test/smoke_test.dart
2016-05-09 11:00:54 -07:00

99 lines
3.8 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;
import 'package:test/test.dart';
// 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.
void smokeDemo(WidgetTester tester, String routeName) {
// Ensure that we're (likely to be) on the home page
final Finder menuItem = findGalleryItemByRouteName(tester, routeName);
expect(menuItem, findsOneWidget);
tester.tap(menuItem);
tester.pump(); // Launch the demo.
tester.pump(const Duration(seconds: 1)); // Wait until the demo has opened.
// Go back
Finder backButton = findBackButton(tester);
expect(backButton, findsOneWidget);
tester.tap(backButton);
tester.pump(); // Start the navigator pop "back" operation.
tester.pump(const Duration(seconds: 1)); // Wait until it has finished.
}
void main() {
testWidgets('Flutter gallery app smoke test', (WidgetTester tester) {
flutter_gallery_main.main(); // builds the app and schedules a frame but doesn't trigger one
tester.pump(); // see https://github.com/flutter/flutter/issues/1865
tester.pump(); // triggers a frame
// Expand the demo category submenus.
for (String category in demoCategories.reversed) {
tester.tap(find.text(category));
tester.pump();
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];
smokeDemo(tester, routeName);
tester.scroll(findGalleryItemByRouteName(tester, routeName), new Offset(0.0, scrollDeltas[i]));
tester.pump();
}
Finder navigationMenuButton = findNavigationMenuButton(tester);
expect(navigationMenuButton, findsOneWidget);
tester.tap(navigationMenuButton);
tester.pump(); // Start opening drawer.
tester.pump(const Duration(seconds: 1)); // Wait until it's really opened.
// switch theme
tester.tap(find.text('Dark'));
tester.pump();
tester.pump(const Duration(seconds: 1)); // Wait until it's changed.
// switch theme
tester.tap(find.text('Light'));
tester.pump();
tester.pump(const Duration(seconds: 1)); // Wait until it's changed.
}, skip: true);
}