1b9cd52081
Well, all the easy ones, anyway. For some reason `// ignore:` isn't working for me so I've disabled lints that need that. Also disabled those that require a ton of work (which I'm doing, but not in this PR, to keep it reviewable). This adds: - avoid_init_to_null - library_names - package_api_docs - package_names - package_prefixed_library_names - prefer_is_not_empty - sort_constructors_first - sort_unnamed_constructors_first - unnecessary_getters_setters
254 lines
7.8 KiB
Dart
254 lines
7.8 KiB
Dart
// Copyright 2015 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 'package:flutter_test/flutter_test.dart';
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import 'package:flutter/rendering.dart';
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import 'package:flutter/widgets.dart';
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import 'package:test/test.dart';
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Size pageSize = new Size(600.0, 300.0);
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const List<int> defaultPages = const <int>[0, 1, 2, 3, 4, 5];
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final List<GlobalKey> globalKeys = defaultPages.map((_) => new GlobalKey()).toList();
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int currentPage;
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Widget buildPage(int page) {
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return new Container(
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key: globalKeys[page],
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width: pageSize.width,
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height: pageSize.height,
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child: new Text(page.toString())
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);
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}
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Widget buildFrame({
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bool itemsWrap: false,
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ViewportAnchor scrollAnchor: ViewportAnchor.start,
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List<int> pages: defaultPages
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}) {
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final PageableList list = new PageableList(
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children: pages.map(buildPage),
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itemsWrap: itemsWrap,
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scrollDirection: Axis.horizontal,
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scrollAnchor: scrollAnchor,
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onPageChanged: (int page) { currentPage = page; }
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);
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// The test framework forces the frame to be 800x600, so we need to create
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// an outer container where we can change the size.
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return new Center(
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child: new Container(
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width: pageSize.width, height: pageSize.height, child: list)
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);
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}
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void page(WidgetTester tester, Offset offset) {
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String itemText = currentPage != null ? currentPage.toString() : '0';
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tester.scroll(tester.findText(itemText), offset);
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// One frame to start the animation, a second to complete it.
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tester.pump();
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tester.pump(const Duration(seconds: 1));
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}
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void pageLeft(WidgetTester tester) {
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page(tester, new Offset(-pageSize.width, 0.0));
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}
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void pageRight(WidgetTester tester) {
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page(tester, new Offset(pageSize.width, 0.0));
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}
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void main() {
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test('PageableList with itemsWrap: false', () {
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testWidgets((WidgetTester tester) {
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currentPage = null;
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tester.pumpWidget(buildFrame());
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expect(currentPage, isNull);
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pageLeft(tester);
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expect(currentPage, equals(1));
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expect(tester.findText('0'), isNull);
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expect(tester.findText('1'), isNotNull);
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expect(tester.findText('2'), isNull);
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expect(tester.findText('3'), isNull);
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expect(tester.findText('4'), isNull);
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expect(tester.findText('5'), isNull);
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pageRight(tester);
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expect(currentPage, equals(0));
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expect(tester.findText('0'), isNotNull);
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expect(tester.findText('1'), isNull);
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expect(tester.findText('2'), isNull);
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expect(tester.findText('3'), isNull);
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expect(tester.findText('4'), isNull);
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expect(tester.findText('5'), isNull);
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pageRight(tester);
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expect(currentPage, equals(0));
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});
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});
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test('PageableList with end scroll anchor', () {
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testWidgets((WidgetTester tester) {
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currentPage = 5;
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tester.pumpWidget(buildFrame(scrollAnchor: ViewportAnchor.end));
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pageRight(tester);
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expect(currentPage, equals(4));
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expect(tester.findText('0'), isNull);
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expect(tester.findText('1'), isNull);
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expect(tester.findText('2'), isNull);
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expect(tester.findText('3'), isNull);
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expect(tester.findText('4'), isNotNull);
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expect(tester.findText('5'), isNull);
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pageLeft(tester);
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expect(currentPage, equals(5));
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expect(tester.findText('0'), isNull);
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expect(tester.findText('1'), isNull);
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expect(tester.findText('2'), isNull);
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expect(tester.findText('3'), isNull);
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expect(tester.findText('4'), isNull);
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expect(tester.findText('5'), isNotNull);
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pageLeft(tester);
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expect(currentPage, equals(5));
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expect(tester.findText('0'), isNull);
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expect(tester.findText('1'), isNull);
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expect(tester.findText('2'), isNull);
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expect(tester.findText('3'), isNull);
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expect(tester.findText('4'), isNull);
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expect(tester.findText('5'), isNotNull);
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});
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});
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test('PageableList with itemsWrap: true', () {
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testWidgets((WidgetTester tester) {
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currentPage = null;
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tester.pumpWidget(buildFrame(itemsWrap: true));
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expect(currentPage, isNull);
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pageLeft(tester);
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expect(currentPage, equals(1));
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pageRight(tester);
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expect(currentPage, equals(0));
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pageRight(tester);
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expect(currentPage, equals(5));
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});
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});
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test('PageableList with end and itemsWrap: true', () {
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testWidgets((WidgetTester tester) {
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currentPage = 5;
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tester.pumpWidget(buildFrame(itemsWrap: true, scrollAnchor: ViewportAnchor.end));
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pageRight(tester);
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expect(currentPage, equals(4));
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expect(tester.findText('0'), isNull);
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expect(tester.findText('1'), isNull);
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expect(tester.findText('2'), isNull);
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expect(tester.findText('3'), isNull);
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expect(tester.findText('4'), isNotNull);
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expect(tester.findText('5'), isNull);
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pageLeft(tester);
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expect(currentPage, equals(5));
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expect(tester.findText('0'), isNull);
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expect(tester.findText('1'), isNull);
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expect(tester.findText('2'), isNull);
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expect(tester.findText('3'), isNull);
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expect(tester.findText('4'), isNull);
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expect(tester.findText('5'), isNotNull);
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pageLeft(tester);
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expect(currentPage, equals(0));
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expect(tester.findText('0'), isNotNull);
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expect(tester.findText('1'), isNull);
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expect(tester.findText('2'), isNull);
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expect(tester.findText('3'), isNull);
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expect(tester.findText('4'), isNull);
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expect(tester.findText('5'), isNull);
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pageLeft(tester);
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expect(currentPage, equals(1));
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expect(tester.findText('0'), isNull);
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expect(tester.findText('1'), isNotNull);
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expect(tester.findText('2'), isNull);
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expect(tester.findText('3'), isNull);
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expect(tester.findText('4'), isNull);
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expect(tester.findText('5'), isNull);
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});
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});
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test('PageableList with two items', () {
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testWidgets((WidgetTester tester) {
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currentPage = null;
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tester.pumpWidget(buildFrame(itemsWrap: true, pages: <int>[0, 1]));
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expect(currentPage, isNull);
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pageLeft(tester);
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expect(currentPage, equals(1));
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pageRight(tester);
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expect(currentPage, equals(0));
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pageRight(tester);
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expect(currentPage, equals(1));
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});
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});
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test('PageableList with one item', () {
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testWidgets((WidgetTester tester) {
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currentPage = null;
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tester.pumpWidget(buildFrame(itemsWrap: true, pages: <int>[0]));
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expect(currentPage, isNull);
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pageLeft(tester);
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expect(currentPage, equals(0));
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pageRight(tester);
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expect(currentPage, equals(0));
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pageRight(tester);
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expect(currentPage, equals(0));
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});
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});
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test('PageableList with no items', () {
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testWidgets((WidgetTester tester) {
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currentPage = null;
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tester.pumpWidget(buildFrame(itemsWrap: true, pages: <int>[]));
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expect(currentPage, isNull);
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});
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});
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test('PageableList resize parent', () {
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testWidgets((WidgetTester tester) {
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tester.pumpWidget(new Container());
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currentPage = null;
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tester.pumpWidget(buildFrame(itemsWrap: true));
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expect(currentPage, isNull);
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pageRight(tester);
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expect(currentPage, equals(5));
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RenderBox box = globalKeys[5].currentContext.findRenderObject();
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expect(box.size.width, equals(pageSize.width));
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expect(box.size.height, equals(pageSize.height));
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pageSize = new Size(pageSize.height, pageSize.width);
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tester.pumpWidget(buildFrame(itemsWrap: true));
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expect(tester.findText('0'), isNull);
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expect(tester.findText('1'), isNull);
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expect(tester.findText('2'), isNull);
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expect(tester.findText('3'), isNull);
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expect(tester.findText('4'), isNull);
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expect(tester.findText('5'), isNotNull);
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box = globalKeys[5].currentContext.findRenderObject();
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expect(box.size.width, equals(pageSize.width));
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expect(box.size.height, equals(pageSize.height));
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});
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});
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}
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