| // 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 'dart:collection' show LinkedHashSet; |
| import 'dart:math' as math; |
| |
| import 'package:flutter/material.dart'; |
| import 'package:flutter/rendering.dart'; |
| import 'package:flutter_test/flutter_test.dart'; |
| import 'package:flutter_gallery/gallery/item.dart' show GalleryItem, kAllGalleryItems; |
| import 'package:flutter_gallery/gallery/app.dart' show GalleryApp; |
| |
| const String kCaption = 'Flutter Gallery'; |
| |
| final List<String> demoCategories = new LinkedHashSet<String>.from( |
| kAllGalleryItems.map<String>((GalleryItem item) => item.category) |
| ).toList(); |
| |
| final List<String> routeNames = |
| kAllGalleryItems.map((GalleryItem item) => item.routeName).toList(); |
| |
| Finder findGalleryItemByRouteName(WidgetTester tester, String routeName) { |
| return find.byWidgetPredicate((Widget widget) { |
| return widget is GalleryItem && widget.routeName == routeName; |
| }); |
| } |
| |
| int errors = 0; |
| |
| void reportToStringError(String name, String route, int lineNumber, List<String> lines, String message) { |
| // If you're on line 12, then it has index 11. |
| // If you want 1 line before and 1 line after, then you want lines with index 10, 11, and 12. |
| // That's (lineNumber-1)-margin .. (lineNumber-1)+margin, or lineNumber-(margin+1) .. lineNumber+(margin-1) |
| final int margin = 5; |
| final int firstLine = math.max(0, lineNumber - margin); |
| final int lastLine = math.min(lines.length, lineNumber + margin); |
| print('$name : $route : line $lineNumber of ${lines.length} : $message; nearby lines were:\n ${lines.sublist(firstLine, lastLine).join("\n ")}'); |
| errors += 1; |
| } |
| |
| void verifyToStringOutput(String name, String route, String testString) { |
| int lineNumber = 0; |
| final List<String> lines = testString.split('\n'); |
| if (!testString.endsWith('\n')) |
| reportToStringError(name, route, lines.length, lines, 'does not end with a line feed'); |
| for (String line in lines) { |
| lineNumber += 1; |
| if (line == '' && lineNumber != lines.length) { |
| reportToStringError(name, route, lineNumber, lines, 'found empty line'); |
| } else if (line.contains('Instance of ')) { |
| reportToStringError(name, route, lineNumber, lines, 'found a class that does not have its own toString'); |
| } else if (line.endsWith(' ')) { |
| reportToStringError(name, route, lineNumber, lines, 'found a line with trailing whitespace'); |
| } |
| } |
| } |
| |
| // Start a gallery demo and then go back. This function assumes that the |
| // we're starting on the home route and that the submenu that contains |
| // the item for a demo that pushes route 'routeName' 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); |
| |
| // Don't use pumpUntilNoTransientCallbacks in this function, because some of |
| // the smoketests have infinitely-running animations (e.g. the progress |
| // indicators demo). |
| |
| await tester.tap(menuItem); |
| await tester.pump(); // Launch the demo. |
| await tester.pump(const Duration(milliseconds: 400)); // Wait until the demo has opened. |
| expect(find.text(kCaption), findsNothing); |
| |
| // Leave the demo on the screen briefly for manual testing. |
| await tester.pump(const Duration(milliseconds: 400)); |
| |
| // Scroll the demo around a bit. |
| await tester.flingFrom(const Offset(400.0, 300.0), const Offset(-100.0, 0.0), 500.0); |
| await tester.flingFrom(const Offset(400.0, 300.0), const Offset(0.0, -100.0), 500.0); |
| await tester.pump(); |
| await tester.pump(const Duration(milliseconds: 50)); |
| await tester.pump(const Duration(milliseconds: 200)); |
| await tester.pump(const Duration(milliseconds: 400)); |
| |
| // Verify that the dumps are pretty. |
| verifyToStringOutput('debugDumpApp', routeName, WidgetsBinding.instance.renderViewElement.toStringDeep()); |
| verifyToStringOutput('debugDumpRenderTree', routeName, RendererBinding.instance?.renderView?.toStringDeep()); |
| verifyToStringOutput('debugDumpLayerTree', routeName, RendererBinding.instance?.renderView?.debugLayer?.toStringDeep()); |
| |
| // Scroll the demo around a bit more. |
| await tester.flingFrom(const Offset(400.0, 300.0), const Offset(-200.0, 0.0), 500.0); |
| await tester.pump(); |
| await tester.pump(const Duration(milliseconds: 50)); |
| await tester.pump(const Duration(milliseconds: 200)); |
| await tester.pump(const Duration(milliseconds: 400)); |
| await tester.flingFrom(const Offset(400.0, 300.0), const Offset(100.0, 0.0), 500.0); |
| await tester.pump(); |
| await tester.pump(const Duration(milliseconds: 400)); |
| await tester.flingFrom(const Offset(400.0, 300.0), const Offset(0.0, 400.0), 1000.0); |
| await tester.pump(); |
| await tester.pump(const Duration(milliseconds: 400)); |
| |
| // Go back |
| final Finder backButton = find.byTooltip('Back'); |
| expect(backButton, findsOneWidget); |
| await tester.tap(backButton); |
| await tester.pump(); // Start the pop "back" operation. |
| await tester.pump(); // Complete the willPop() Future. |
| await tester.pump(const Duration(milliseconds: 400)); // Wait until it has finished. |
| return null; |
| } |
| |
| Future<Null> runSmokeTest(WidgetTester tester) async { |
| bool hasFeedback = false; |
| void mockOnSendFeedback() { |
| hasFeedback = true; |
| } |
| |
| await tester.pumpWidget(new GalleryApp(onSendFeedback: mockOnSendFeedback)); |
| await tester.pump(); // see https://github.com/flutter/flutter/issues/1865 |
| await tester.pump(); // triggers a frame |
| |
| expect(find.text(kCaption), findsOneWidget); |
| |
| for (String routeName in routeNames) { |
| final Finder finder = findGalleryItemByRouteName(tester, routeName); |
| Scrollable.ensureVisible(tester.element(finder), alignment: 0.5); |
| await tester.pumpAndSettle(); |
| await smokeDemo(tester, routeName); |
| tester.binding.debugAssertNoTransientCallbacks('A transient callback was still active after leaving route $routeName'); |
| } |
| expect(errors, 0); |
| |
| final Finder navigationMenuButton = find.byTooltip('Open navigation menu'); |
| 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. |
| |
| // scroll the 'Send feedback' item into view |
| await tester.drag(find.text('Light'), const Offset(0.0, -200.0)); |
| await tester.pump(); |
| await tester.pump(const Duration(seconds: 1)); // Wait until it's changed. |
| |
| // send feedback |
| expect(hasFeedback, false); |
| await tester.tap(find.text('Send feedback')); |
| await tester.pump(); |
| expect(hasFeedback, true); |
| } |
| |
| void main() { |
| testWidgets('Flutter Gallery app smoke test', runSmokeTest); |
| |
| testWidgets('Flutter Gallery app smoke test', (WidgetTester tester) async { |
| RendererBinding.instance.setSemanticsEnabled(true); |
| await runSmokeTest(tester); |
| RendererBinding.instance.setSemanticsEnabled(false); |
| }); |
| } |