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Now that we have thousands of tests, it doesn't make sense to display a separate line for each test. The result is just megabytes of logs that you have to scrub through to find error messages.
179 lines
7.3 KiB
Dart
179 lines
7.3 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:math' as math;
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import 'package:flutter/material.dart';
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import 'package:flutter/rendering.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:flutter_gallery/gallery/demos.dart';
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import 'package:flutter_gallery/gallery/app.dart' show GalleryApp;
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// This title is visible on the home and demo category pages. It's
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// not visible when the demos are running.
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const String kGalleryTitle = 'Flutter gallery';
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// All of the classes printed by debugDump etc, must have toString()
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// values approved by verityToStringOutput().
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int toStringErrors = 0;
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void reportToStringError(String name, String route, int lineNumber, List<String> lines, String message) {
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// If you're on line 12, then it has index 11.
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// If you want 1 line before and 1 line after, then you want lines with index 10, 11, and 12.
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// That's (lineNumber-1)-margin .. (lineNumber-1)+margin, or lineNumber-(margin+1) .. lineNumber+(margin-1)
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const int margin = 5;
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final int firstLine = math.max(0, lineNumber - margin);
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final int lastLine = math.min(lines.length, lineNumber + margin);
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print('$name : $route : line $lineNumber of ${lines.length} : $message; nearby lines were:\n ${lines.sublist(firstLine, lastLine).join("\n ")}');
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toStringErrors += 1;
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}
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void verifyToStringOutput(String name, String route, String testString) {
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int lineNumber = 0;
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final List<String> lines = testString.split('\n');
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if (!testString.endsWith('\n'))
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reportToStringError(name, route, lines.length, lines, 'does not end with a line feed');
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for (String line in lines) {
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lineNumber += 1;
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if (line == '' && lineNumber != lines.length) {
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reportToStringError(name, route, lineNumber, lines, 'found empty line');
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} else if (line.contains('Instance of ')) {
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reportToStringError(name, route, lineNumber, lines, 'found a class that does not have its own toString');
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} else if (line.endsWith(' ')) {
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reportToStringError(name, route, lineNumber, lines, 'found a line with trailing whitespace');
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}
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}
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}
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Future<Null> smokeDemo(WidgetTester tester, GalleryDemo demo) async {
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// Don't use pumpUntilNoTransientCallbacks in this function, because some of
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// the smoketests have infinitely-running animations (e.g. the progress
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// indicators demo).
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await tester.tap(find.text(demo.title));
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await tester.pump(); // Launch the demo.
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await tester.pump(const Duration(milliseconds: 400)); // Wait until the demo has opened.
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expect(find.text(kGalleryTitle), findsNothing);
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// Leave the demo on the screen briefly for manual testing.
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await tester.pump(const Duration(milliseconds: 400));
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// Scroll the demo around a bit.
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await tester.flingFrom(const Offset(400.0, 300.0), const Offset(-100.0, 0.0), 500.0);
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await tester.flingFrom(const Offset(400.0, 300.0), const Offset(0.0, -100.0), 500.0);
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await tester.pump();
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await tester.pump(const Duration(milliseconds: 50));
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await tester.pump(const Duration(milliseconds: 200));
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await tester.pump(const Duration(milliseconds: 400));
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// Verify that the dumps are pretty.
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final String routeName = demo.routeName;
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verifyToStringOutput('debugDumpApp', routeName, WidgetsBinding.instance.renderViewElement.toStringDeep());
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verifyToStringOutput('debugDumpRenderTree', routeName, RendererBinding.instance?.renderView?.toStringDeep());
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verifyToStringOutput('debugDumpLayerTree', routeName, RendererBinding.instance?.renderView?.debugLayer?.toStringDeep());
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// Scroll the demo around a bit more.
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await tester.flingFrom(const Offset(400.0, 300.0), const Offset(-200.0, 0.0), 500.0);
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await tester.pump();
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await tester.pump(const Duration(milliseconds: 50));
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await tester.pump(const Duration(milliseconds: 200));
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await tester.pump(const Duration(milliseconds: 400));
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await tester.flingFrom(const Offset(400.0, 300.0), const Offset(100.0, 0.0), 500.0);
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await tester.pump();
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await tester.pump(const Duration(milliseconds: 400));
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await tester.flingFrom(const Offset(400.0, 300.0), const Offset(0.0, 400.0), 1000.0);
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await tester.pump();
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await tester.pump(const Duration(milliseconds: 400));
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// Go back
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await tester.pageBack();
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await tester.pumpAndSettle();
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await tester.pump(); // Start the pop "back" operation.
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await tester.pump(); // Complete the willPop() Future.
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await tester.pump(const Duration(milliseconds: 400)); // Wait until it has finished.
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}
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Future<Null> smokeOptionsPage(WidgetTester tester) async {
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final Finder showOptionsPageButton = find.byTooltip('Toggle options page');
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// Show the options page
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await tester.tap(showOptionsPageButton);
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await tester.pumpAndSettle();
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// Switch to the dark theme: first switch control
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await tester.tap(find.byType(Switch).first);
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await tester.pumpAndSettle();
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// Switch back to the light theme: first switch control again
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await tester.tap(find.byType(Switch).first);
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await tester.pumpAndSettle();
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// Popup the text size menu: first menu button, choose 'Small'
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await tester.tap(find.byIcon(Icons.arrow_drop_down).first);
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await tester.pumpAndSettle();
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await tester.tap(find.text('Small'));
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await tester.pumpAndSettle();
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// Popup the text size menu: first menu button, choose 'Normal'
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await tester.tap(find.byIcon(Icons.arrow_drop_down).first);
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await tester.pumpAndSettle();
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await tester.tap(find.text('Normal'));
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await tester.pumpAndSettle();
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// Scroll the 'Send feedback' item into view
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await tester.drag(find.text('Normal'), const Offset(0.0, -1000.0));
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await tester.pumpAndSettle();
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await tester.tap(find.text('Send feedback'));
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await tester.pumpAndSettle();
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// Close the options page
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expect(showOptionsPageButton, findsOneWidget);
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await tester.tap(showOptionsPageButton);
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await tester.pumpAndSettle();
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}
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Future<Null> smokeGallery(WidgetTester tester) async {
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bool sendFeedbackButtonPressed = false;
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await tester.pumpWidget(
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new GalleryApp(
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testMode: true,
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onSendFeedback: () {
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sendFeedbackButtonPressed = true; // see smokeOptionsPage()
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},
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),
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);
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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(kGalleryTitle), findsOneWidget);
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for (GalleryDemoCategory category in kAllGalleryDemoCategories) {
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await Scrollable.ensureVisible(tester.element(find.text(category.name)), alignment: 0.5);
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await tester.tap(find.text(category.name));
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await tester.pumpAndSettle();
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for (GalleryDemo demo in kGalleryCategoryToDemos[category]) {
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await Scrollable.ensureVisible(tester.element(find.text(demo.title)), alignment: 0.0);
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await smokeDemo(tester, demo);
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tester.binding.debugAssertNoTransientCallbacks('A transient callback was still active after running $demo');
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}
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await tester.pageBack();
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await tester.pumpAndSettle();
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}
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expect(toStringErrors, 0);
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await smokeOptionsPage(tester);
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expect(sendFeedbackButtonPressed, true);
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}
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void main() {
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testWidgets('Flutter Gallery app smoke test', smokeGallery);
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testWidgets('Flutter Gallery app smoke test with semantics', (WidgetTester tester) async {
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RendererBinding.instance.setSemanticsEnabled(true);
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await smokeGallery(tester);
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RendererBinding.instance.setSemanticsEnabled(false);
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});
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}
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