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Add:创建 flutter go web 版
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ryan
301
packages/flutter_web/test/widgets/text_test.dart
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301
packages/flutter_web/test/widgets/text_test.dart
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// 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 'package:flutter_web/gestures.dart';
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import 'package:flutter_web_test/flutter_web_test.dart';
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import 'package:flutter_web/widgets.dart';
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import 'package:flutter_web/foundation.dart';
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import 'semantics_tester.dart';
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void main() {
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testWidgets('Text respects media query', (WidgetTester tester) async {
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await tester.pumpWidget(const MediaQuery(
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data: MediaQueryData(textScaleFactor: 1.3),
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child: Center(child: Text('Hello', textDirection: TextDirection.ltr))));
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RichText text = tester.firstWidget(find.byType(RichText));
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expect(text, isNotNull);
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expect(text.textScaleFactor, 1.3);
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await tester.pumpWidget(
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const Center(child: Text('Hello', textDirection: TextDirection.ltr)));
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text = tester.firstWidget(find.byType(RichText));
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expect(text, isNotNull);
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expect(text.textScaleFactor, 1.0);
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});
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testWidgets('Text respects textScaleFactor with default font size',
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(WidgetTester tester) async {
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await tester.pumpWidget(
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const Center(child: Text('Hello', textDirection: TextDirection.ltr)));
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RichText text = tester.firstWidget(find.byType(RichText));
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expect(text, isNotNull);
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expect(text.textScaleFactor, 1.0);
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final Size baseSize = tester.getSize(find.byType(RichText));
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expect(baseSize.width, equals(70.0));
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expect(baseSize.height, equals(14.0));
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await tester.pumpWidget(const Center(
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child: Text('Hello',
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textScaleFactor: 1.5, textDirection: TextDirection.ltr)));
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text = tester.firstWidget(find.byType(RichText));
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expect(text, isNotNull);
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expect(text.textScaleFactor, 1.5);
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final Size largeSize = tester.getSize(find.byType(RichText));
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expect(largeSize.width, 105.0);
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expect(largeSize.height, equals(21.0));
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});
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testWidgets('Text respects textScaleFactor with explicit font size',
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(WidgetTester tester) async {
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await tester.pumpWidget(const Center(
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child: Text('Hello',
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style: TextStyle(fontSize: 20.0),
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textDirection: TextDirection.ltr)));
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RichText text = tester.firstWidget(find.byType(RichText));
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expect(text, isNotNull);
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expect(text.textScaleFactor, 1.0);
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final Size baseSize = tester.getSize(find.byType(RichText));
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expect(baseSize.width, equals(100.0));
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expect(baseSize.height, equals(20.0));
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await tester.pumpWidget(const Center(
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child: Text('Hello',
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style: TextStyle(fontSize: 20.0),
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textScaleFactor: 1.3,
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textDirection: TextDirection.ltr)));
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text = tester.firstWidget(find.byType(RichText));
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expect(text, isNotNull);
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expect(text.textScaleFactor, 1.3);
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final Size largeSize = tester.getSize(find.byType(RichText));
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expect(largeSize.width, anyOf(131.0, 130.0));
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expect(largeSize.height, equals(26.0));
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});
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testWidgets('Text throws a nice error message if there\'s no Directionality',
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(WidgetTester tester) async {
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await tester.pumpWidget(const Text('Hello'));
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final String message = tester.takeException().toString();
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expect(message, contains('Directionality'));
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expect(message, contains(' Text '));
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});
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testWidgets('Text can be created from TextSpans and uses defaultTextStyle',
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(WidgetTester tester) async {
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await tester.pumpWidget(
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const DefaultTextStyle(
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style: TextStyle(
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fontSize: 20.0,
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),
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child: Text.rich(
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TextSpan(
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text: 'Hello',
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children: <TextSpan>[
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TextSpan(
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text: ' beautiful ',
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style: TextStyle(fontStyle: FontStyle.italic)),
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TextSpan(
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text: 'world', style: TextStyle(fontWeight: FontWeight.bold)),
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],
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),
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textDirection: TextDirection.ltr,
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),
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),
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);
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final RichText text = tester.firstWidget(find.byType(RichText));
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expect(text, isNotNull);
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expect(text.text.style.fontSize, 20.0);
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});
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testWidgets('Rich text can be styled using TextSpans',
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(WidgetTester tester) async {
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const TextStyle normalStyle = TextStyle(fontSize: 20.0);
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const TextStyle boldStyle =
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TextStyle(fontSize: 20.0, fontWeight: FontWeight.bold);
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await tester.pumpWidget(
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Container(
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child: RichText(
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text: TextSpan(
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children: [
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TextSpan(
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text: 'Hello ',
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style: normalStyle,
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),
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TextSpan(
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text: 'bold ',
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style: boldStyle,
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),
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TextSpan(
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text: 'World!',
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style: normalStyle,
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),
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],
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),
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textDirection: TextDirection.ltr,
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),
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),
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);
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final RichText text = tester.firstWidget(find.byType(RichText));
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expect(text, isNotNull);
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});
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testWidgets('semanticsLabel can override text label',
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(WidgetTester tester) async {
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final SemanticsTester semantics = SemanticsTester(tester);
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await tester.pumpWidget(const Text('\$\$',
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semanticsLabel: 'Double dollars', textDirection: TextDirection.ltr));
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final TestSemantics expectedSemantics = TestSemantics.root(
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children: <TestSemantics>[
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TestSemantics.rootChild(
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label: 'Double dollars',
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textDirection: TextDirection.ltr,
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),
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],
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);
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expect(
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semantics,
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hasSemantics(expectedSemantics,
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ignoreTransform: true, ignoreId: true, ignoreRect: true));
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await tester.pumpWidget(
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const Directionality(
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textDirection: TextDirection.ltr,
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child: Text('\$\$', semanticsLabel: 'Double dollars')),
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);
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expect(
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semantics,
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hasSemantics(expectedSemantics,
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ignoreTransform: true, ignoreId: true, ignoreRect: true));
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semantics.dispose();
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});
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testWidgets('recognizers split semantic node', (WidgetTester tester) async {
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final SemanticsTester semantics = SemanticsTester(tester);
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const TextStyle textStyle = TextStyle(fontFamily: 'Ahem');
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await tester.pumpWidget(
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Text.rich(
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TextSpan(
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children: <TextSpan>[
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const TextSpan(text: 'hello '),
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TextSpan(
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text: 'world',
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recognizer: TapGestureRecognizer()..onTap = () {}),
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const TextSpan(text: ' this is a '),
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const TextSpan(text: 'cat-astrophe'),
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],
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style: textStyle,
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),
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textDirection: TextDirection.ltr,
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),
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);
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final TestSemantics expectedSemantics = TestSemantics.root(
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children: <TestSemantics>[
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TestSemantics.rootChild(
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children: <TestSemantics>[
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TestSemantics(
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label: 'hello ',
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textDirection: TextDirection.ltr,
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),
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TestSemantics(
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label: 'world',
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textDirection: TextDirection.ltr,
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actions: <SemanticsAction>[
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SemanticsAction.tap,
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],
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),
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TestSemantics(
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label: ' this is a cat-astrophe',
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textDirection: TextDirection.ltr,
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)
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],
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),
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],
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);
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expect(
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semantics,
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hasSemantics(expectedSemantics,
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ignoreTransform: true, ignoreId: true, ignoreRect: true));
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semantics.dispose();
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});
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testWidgets('recognizers split semantic node - bidi',
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(WidgetTester tester) async {
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final SemanticsTester semantics = SemanticsTester(tester);
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const TextStyle textStyle = TextStyle(fontFamily: 'Ahem');
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await tester.pumpWidget(RichText(
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text: TextSpan(
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style: textStyle,
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children: <TextSpan>[
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const TextSpan(text: 'hello world${Unicode.RLE}${Unicode.RLO} '),
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TextSpan(
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text: 'BOY',
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recognizer: LongPressGestureRecognizer()..onLongPress = () {}),
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const TextSpan(text: ' HOW DO${Unicode.PDF} you ${Unicode.RLO} DO '),
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TextSpan(
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text: 'SIR', recognizer: TapGestureRecognizer()..onTap = () {}),
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const TextSpan(text: '${Unicode.PDF}${Unicode.PDF} good bye'),
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],
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),
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textDirection: TextDirection.ltr,
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));
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// The expected visual order of the text is:
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// hello world RIS OD you OD WOH YOB good bye
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final TestSemantics expectedSemantics = TestSemantics.root(
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children: <TestSemantics>[
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TestSemantics.rootChild(
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rect: Rect.fromLTRB(0.0, 0.0, 800.0, 600.0),
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children: <TestSemantics>[
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TestSemantics(
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rect: Rect.fromLTRB(-4.0, -4.0, 480.0, 18.0),
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label: 'hello world ',
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textDirection:
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TextDirection.ltr, // text direction is declared as LTR.
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),
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TestSemantics(
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rect: Rect.fromLTRB(150.0, -4.0, 200.0, 18.0),
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label: 'RIS',
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textDirection: TextDirection
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.rtl, // in the last string we switched to RTL using RLE.
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actions: <SemanticsAction>[
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SemanticsAction.tap,
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],
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),
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TestSemantics(
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rect: Rect.fromLTRB(192.0, -4.0, 424.0, 18.0),
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label: ' OD you OD WOH ', // Still RTL.
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textDirection: TextDirection.rtl,
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),
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TestSemantics(
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rect: Rect.fromLTRB(416.0, -4.0, 466.0, 18.0),
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label: 'YOB',
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textDirection: TextDirection.rtl, // Still RTL.
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actions: <SemanticsAction>[
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SemanticsAction.longPress,
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],
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),
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TestSemantics(
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rect: Rect.fromLTRB(472.0, -4.0, 606.0, 18.0),
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label: ' good bye',
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textDirection: TextDirection.rtl, // Begin as RTL but pop to LTR.
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),
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],
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),
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],
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);
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expect(semantics,
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hasSemantics(expectedSemantics, ignoreTransform: true, ignoreId: true));
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semantics.dispose();
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},
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skip:
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true); // TODO(jonahwilliams): correct once https://github.com/flutter/flutter/issues/20891 is resolved.
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}
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