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106 lines
4.2 KiB
Dart
106 lines
4.2 KiB
Dart
// Copyright 2016 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'dart:collection' show LinkedHashSet;
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import 'package:flutter/material.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:flutter_gallery/gallery/item.dart' show GalleryItem, kAllGalleryItems;
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import 'package:flutter_gallery/main.dart' as flutter_gallery_main;
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const String kCaption = 'Flutter Gallery';
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final List<String> demoCategories = new LinkedHashSet<String>.from(
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kAllGalleryItems.map((GalleryItem item) => item.category)
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).toList();
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final List<String> routeNames =
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kAllGalleryItems.map((GalleryItem item) => item.routeName).toList();
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Finder findGalleryItemByRouteName(WidgetTester tester, String routeName) {
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return find.byWidgetPredicate((Widget widget) {
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return widget is GalleryItem && widget.routeName == routeName;
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});
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}
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Finder byTooltip(WidgetTester tester, String message) {
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return find.byWidgetPredicate((Widget widget) {
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return widget is Tooltip && widget.message == message;
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});
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}
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Finder findNavigationMenuButton(WidgetTester tester) =>
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byTooltip(tester, 'Open navigation menu');
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Finder findBackButton(WidgetTester tester) => byTooltip(tester, 'Back');
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// Start a gallery demo and then go back. This function assumes that the
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// we're starting on the home route and that the submenu that contains
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// the item for a demo that pushes route 'routeName' is already open.
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Future<Null> smokeDemo(WidgetTester tester, String routeName) async {
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// Ensure that we're (likely to be) on the home page
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final Finder menuItem = findGalleryItemByRouteName(tester, routeName);
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expect(menuItem, findsOneWidget);
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await tester.tap(menuItem);
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await tester.pump(); // Launch the demo.
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await tester.pump(const Duration(seconds: 1)); // Wait until the demo has opened.
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expect(find.text(kCaption), findsNothing);
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// Go back
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Finder backButton = findBackButton(tester);
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expect(backButton, findsOneWidget);
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await tester.tap(backButton);
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await tester.pump(); // Start the pop "back" operation.
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await tester.pump(const Duration(seconds: 1)); // Wait until it has finished.
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return null;
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}
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void main() {
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testWidgets('Flutter Gallery app smoke test', (WidgetTester tester) async {
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flutter_gallery_main
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.main(); // builds the app and schedules a frame but doesn't trigger one
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await tester.pump(); // see https://github.com/flutter/flutter/issues/1865
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await tester.pump(); // triggers a frame
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expect(find.text(kCaption), findsOneWidget);
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final List<double> scrollDeltas = new List<double>();
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double previousY = tester.getTopRight(find.text(demoCategories[0])).y;
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for (String routeName in routeNames) {
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final double y = tester.getTopRight(findGalleryItemByRouteName(tester, routeName)).y;
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scrollDeltas.add(previousY - y);
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previousY = y;
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}
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// Launch each demo and then scroll that item out of the way.
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for (int i = 0; i < routeNames.length; i += 1) {
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final String routeName = routeNames[i];
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await smokeDemo(tester, routeName);
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await tester.scroll(findGalleryItemByRouteName(tester, routeName), new Offset(0.0, scrollDeltas[i]));
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await tester.pump(); // start the scroll
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await tester.pump(const Duration(milliseconds: 500)); // wait for overscroll to timeout, if necessary
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await tester.pump(const Duration(seconds: 3)); // wait for overscroll to fade away, if necessary
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tester.binding.debugAssertNoTransientCallbacks('A transient callback was still active after leaving route $routeName');
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}
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Finder navigationMenuButton = findNavigationMenuButton(tester);
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expect(navigationMenuButton, findsOneWidget);
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await tester.tap(navigationMenuButton);
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await tester.pump(); // Start opening drawer.
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await tester.pump(const Duration(seconds: 1)); // Wait until it's really opened.
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// switch theme
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await tester.tap(find.text('Dark'));
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await tester.pump();
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await tester.pump(const Duration(seconds: 1)); // Wait until it's changed.
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// switch theme
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await tester.tap(find.text('Light'));
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await tester.pump();
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await tester.pump(const Duration(seconds: 1)); // Wait until it's changed.
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});
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}
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