Flutter integration_test:无法向 tester.enterText() 方法输入整数、双精度值?
Flutter integration_test: Can't input integer, double values to tester.enterText() method?
我正在为我的 flutter-web 应用程序开发 integration_test ....其中我遇到 tester.enterText()
方法不输入整数,双精度值,因为它的数据类型仅限于字符串类型.如果我的 TextField
只接受数字并且 keyboardType
属性 设置为 keyboardType: TextInputType.number
怎么办?
尝试将其类型转换为字符串类型,但结果 TextField
不接受任何非字符串值。
以下测试用例失败,出现以下异常:
应为 String
类型的值,但得到了 int
类型的值
可重现样本:
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: const MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
const MyHomePage({Key? key, required this.title}) : super(key: key);
final String title;
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
final _scaleTextController = TextEditingController();
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: Container(
alignment: Alignment.center,
child: TextFormField(
controller: _scaleTextController,
inputFormatters: [
FilteringTextInputFormatter.allow(
RegExp(r'^\d*\.?\d{0,6}'),
),
],
keyboardType: TextInputType.number,
autofocus: true,
),
),
floatingActionButton: FloatingActionButton(
onPressed: () {},
tooltip: 'Increment',
child: const Icon(Icons.add),
),
);
}
}
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:integration_test/integration_test.dart';
import 'package:hello_world/main.dart' as app;
void main() async {
group('Complete E2E Test', () {
IntegrationTestWidgetsFlutterBinding.ensureInitialized();
setUp(() {
app.main();
});
testWidgets('Hello World test', (WidgetTester tester) async {
final inputField = find.byType(TextField).first;
await tester.tap(inputField);
await tester.enterText(inputField, 2 as String);
});
});
}
只需使用 toString() 而不是转换
比如
假设你有一个 int 变量
int x = 2;
要将其更改为字符串,只需使用
x.toString();
我正在为我的 flutter-web 应用程序开发 integration_test ....其中我遇到 tester.enterText()
方法不输入整数,双精度值,因为它的数据类型仅限于字符串类型.如果我的 TextField
只接受数字并且 keyboardType
属性 设置为 keyboardType: TextInputType.number
怎么办?
尝试将其类型转换为字符串类型,但结果 TextField
不接受任何非字符串值。
以下测试用例失败,出现以下异常:
应为 String
类型的值,但得到了 int
可重现样本:
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: const MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
const MyHomePage({Key? key, required this.title}) : super(key: key);
final String title;
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
final _scaleTextController = TextEditingController();
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: Container(
alignment: Alignment.center,
child: TextFormField(
controller: _scaleTextController,
inputFormatters: [
FilteringTextInputFormatter.allow(
RegExp(r'^\d*\.?\d{0,6}'),
),
],
keyboardType: TextInputType.number,
autofocus: true,
),
),
floatingActionButton: FloatingActionButton(
onPressed: () {},
tooltip: 'Increment',
child: const Icon(Icons.add),
),
);
}
}
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:integration_test/integration_test.dart';
import 'package:hello_world/main.dart' as app;
void main() async {
group('Complete E2E Test', () {
IntegrationTestWidgetsFlutterBinding.ensureInitialized();
setUp(() {
app.main();
});
testWidgets('Hello World test', (WidgetTester tester) async {
final inputField = find.byType(TextField).first;
await tester.tap(inputField);
await tester.enterText(inputField, 2 as String);
});
});
}
只需使用 toString() 而不是转换
比如
假设你有一个 int 变量
int x = 2;
要将其更改为字符串,只需使用
x.toString();