Unit testing 颤振：'；软件包：共享首选项/共享首选项。dart'；：断言失败：第33行第16位：'；key.startsWith（_前缀）和#x27；：事实并非如此
我正在对共享首选项运行一些单元测试。我制作了一个helper类，这样我们就不必反复编写相同的代码 无论我尝试什么，我总是一次又一次地犯同样的错误。 您将找到我正在测试的类、测试类和stacktrace 我希望我忘记了一些愚蠢的事情。 我尝试了以下资源：Unit testing 颤振：'；软件包：共享首选项/共享首选项。dart'；：断言失败：第33行第16位：'；key.startsWith（_前缀）和#x27；：事实并非如此,unit-testing,dart,flutter,sharedpreferences,Unit Testing,Dart,Flutter,Sharedpreferences,我正在对共享首选项运行一些单元测试。我制作了一个helper类，这样我们就不必反复编写相同的代码 无论我尝试什么，我总是一次又一次地犯同样的错误。 您将找到我正在测试的类、测试类和stacktrace 我希望我忘记了一些愚蠢的事情。 我尝试了以下资源： 共享的\u首选项\u助手\u test.dart： import 'package:flutter/services.dart'; import 'package:flutter_test/flutter_test.dart'; imp
import 'package:flutter/services.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:shoppaworld_client_app/shared_preferences_helper.dart';
// at the moment testing
void main() {
SharedPreferencesHelper sharedPreferencesHelper;
setUpAll(() {
sharedPreferencesHelper = SharedPreferencesHelper();
const MethodChannel('plugins.flutter.io/shared_preferences')
.setMockMethodCallHandler((MethodCall methodCall) async {
if (methodCall.method == 'getAll') {
return <String, dynamic> {
'test-string' : 'string-value',
'test-int' : 420,
'test-bool' : true
}; // set initial values here if desired
}
return null;
});
});
test('test if the testing works', () async {
SharedPreferences sharedPreferences = await SharedPreferences.getInstance();
sharedPreferences.setString('test-string-infunction', 'wow');
var value = sharedPreferences.getString('test-string-infunction');
print(value);
expect(value, 'wow');
});
group('unit test 1: read shared preferences', () {
test('shared preferences string', () async {
String value = await sharedPreferencesHelper.readValueFromKey("test-string");
print(value);
expect(value, 'string-value');
});
test('shared preferences empty', () async {
var value = await sharedPreferencesHelper.readValueFromKey("does_not_exist");
expect(value, null);
});
});
group('unit test 2: write shared preferences', () {
test('shared preferences string', () async {
var originalValue = 'test';
var value = await sharedPreferencesHelper.writeValueToKey("test-string", valueString: originalValue);
SharedPreferences sharedPreferences = await SharedPreferences.getInstance();
expect(sharedPreferences.getString('test-string'), originalValue);
});
test('shared preferences int', () async {
var originalValue = 420;
var value = await sharedPreferencesHelper.writeValueToKey("test-int", valueInt: originalValue);
SharedPreferences sharedPreferences = await SharedPreferences.getInstance();
expect(sharedPreferences.getInt('test-int'), originalValue);
});
test('shared preferences bool', () async {
var originalValue = true;
var value = await sharedPreferencesHelper.writeValueToKey("test-bool", valueBool: originalValue);
SharedPreferences sharedPreferences = await SharedPreferences.getInstance();
expect(sharedPreferences.getBool('test-bool'), originalValue);
});
});
}
import'package:flatter/services.dart'；
进口“包装：颤振试验/颤振试验.dart”；
导入“package:shared_preferences/shared_preferences.dart”；
导入“package:shoppaworld_client_app/shared_preferences_helper.dart”；
//目前正在进行测试
void main（）{
SharedPreferenceHelper SharedPreferenceHelper；
setUpAll（（）{
SharedPreferenceHelper=SharedPreferenceHelper（）；
const MethodChannel（'plugins.flatter.io/shared_preferences'）
.setMockMethodCallHandler（（MethodCall MethodCall）异步{
if（methodCall.method=='getAll'）{
返回{
“测试字符串”：“字符串值”，
“测试int”：420，
“测试布尔”：真
}；//如果需要，在此处设置初始值
}
返回null；
});
});
test（'测试是否有效'，（）异步{
SharedReferences SharedReferences=等待SharedReferences.getInstance（）；
setString（'test-string-infunction'，'wow'）；
var value=SharedReferences.getString（'test-string-infunction'）；
印刷品（价值）；
期望值（value，'wow'）；
});
组（'单元测试1：读取共享首选项'，（）{
测试（'共享首选项字符串'，（）异步{
字符串值=等待SharedReferencesHelper.readValueFromKey（“测试字符串”）；
印刷品（价值）；
expect（值，'字符串值'）；
});
测试（'共享首选项为空'，（）异步{
var value=等待SharedReferencesHelper.readValueFromKey（“不存在”）；
expect（值，null）；
});
});
组（'单元测试2：写入共享首选项'，（）{
测试（'共享首选项字符串'，（）异步{
var原始值=‘测试’；
var value=await SharedReferencesHelper.writeValueToKey（“测试字符串”，valueString:originalValue）；
SharedReferences SharedReferences=等待SharedReferences.getInstance（）；
expect（SharedReferences.getString（'test-string'），originalValue）；
});
测试（'shared preferences int'，（）异步{
var原始值=420；
var value=await SharedReferencesHelper.writeValueToKey（“test int”，valueInt:originalValue）；
SharedReferences SharedReferences=等待SharedReferences.getInstance（）；
expect（SharedReferences.getInt（'test-int'），originalValue）；
});
测试（'共享首选项布尔'，（）异步{
var originalValue=真；
var value=await SharedReferencesHelper.writeValueToKey（“测试bool”，valueBool:originalValue）；
SharedReferences SharedReferences=等待SharedReferences.getInstance（）；
expect（sharedPreferences.getBool（'test-bool'），originalValue）；
});
});
}
import 'dart:async';
import 'package:shared_preferences/shared_preferences.dart';
// this class is meant to relieve developers from boilerplate code
class SharedPreferencesHelper {
Future<dynamic> readValueFromKey(String key) async {
SharedPreferences sharedPreferences = await SharedPreferences.getInstance();
return sharedPreferences.get(key) ?? null;
}
writeValueToKey(String key, {String valueString, bool valueBool, int valueInt}) async {
SharedPreferences sharedPreferences = await SharedPreferences.getInstance();
if(valueString != null){
sharedPreferences.setString(key, valueString);
}
if(valueBool != null) {
sharedPreferences.setBool(key, valueBool);
}
if(valueInt != null) {
sharedPreferences.setInt(key, valueInt);
}
}
}
导入'dart:async'；
导入“package:shared_preferences/shared_preferences.dart”；
//该类旨在使开发人员从样板代码中解脱出来
类SharedReferencesHelper{
未来readValueFromKey（字符串键）异步{
SharedReferences SharedReferences=等待SharedReferences.getInstance（）；
返回SharedReferences.get（key）？？空；
}
writeValueToKey（字符串键，{String valueString，bool valueBool，int valueInt}）异步{
SharedReferences SharedReferences=等待SharedReferences.getInstance（）；
if（valueString！=null）{
设置字符串（键，值字符串）；
}
如果（valueBool！=null）{
setBool（key，valueBool）；
}
如果（valueInt！=null）{
setInt（key，valueInt）；
}
}
}
Testing started at 12:10 ...
/home/geordy/SoftwareDevelopment/flutter/flutter_linux_v1.2.1-stable/flutter/bin/flutter --no-color test --machine test/shared_preferences_helper_test.dart
dart:core _AssertionError._throwNew
package:shared_preferences/shared_preferences.dart 33:16 SharedPreferences.getInstance
===== asynchronous gap ===========================
dart:async _AsyncAwaitCompleter.completeError
package:shared_preferences/shared_preferences.dart SharedPreferences.getInstance
===== asynchronous gap ===========================
dart:async _asyncThenWrapperHelper
package:shared_preferences/shared_preferences.dart SharedPreferences.getInstance
test/shared_preferences_helper_test.dart 30:67 main.<fn>
'package:shared_preferences/shared_preferences.dart': Failed assertion: line 33 pos 16: 'key.startsWith(_prefix)': is not true.
dart:core _AssertionError._throwNew
package:shared_preferences/shared_preferences.dart 33:16 SharedPreferences.getInstance
===== asynchronous gap ===========================
dart:async _AsyncAwaitCompleter.completeError
package:shared_preferences/shared_preferences.dart SharedPreferences.getInstance
===== asynchronous gap ===========================
dart:async _asyncThenWrapperHelper
package:shared_preferences/shared_preferences.dart SharedPreferences.getInstance
package:shoppaworld_client_app/shared_preferences_helper.dart 20:67 SharedPreferencesHelper.readValueFromKey
'package:shared_preferences/shared_preferences.dart': Failed assertion: line 33 pos 16: 'key.startsWith(_prefix)': is not true.
dart:core _AssertionError._throwNew
package:shared_preferences/shared_preferences.dart 33:16 SharedPreferences.getInstance
===== asynchronous gap ===========================
dart:async _AsyncAwaitCompleter.completeError
package:shared_preferences/shared_preferences.dart SharedPreferences.getInstance
===== asynchronous gap ===========================
dart:async _asyncThenWrapperHelper
package:shared_preferences/shared_preferences.dart SharedPreferences.getInstance
package:shoppaworld_client_app/shared_preferences_helper.dart 20:67 SharedPreferencesHelper.readValueFromKey
'package:shared_preferences/shared_preferences.dart': Failed assertion: line 33 pos 16: 'key.startsWith(_prefix)': is not true.
dart:core _AssertionError._throwNew
package:shared_preferences/shared_preferences.dart 33:16 SharedPreferences.getInstance
===== asynchronous gap ===========================
dart:async _AsyncAwaitCompleter.completeError
package:shared_preferences/shared_preferences.dart SharedPreferences.getInstance
===== asynchronous gap ===========================
dart:async _asyncThenWrapperHelper
package:shared_preferences/shared_preferences.dart SharedPreferences.getInstance
package:shoppaworld_client_app/shared_preferences_helper.dart 25:67 SharedPreferencesHelper.writeValueToKey
'package:shared_preferences/shared_preferences.dart': Failed assertion: line 33 pos 16: 'key.startsWith(_prefix)': is not true.
dart:core _AssertionError._throwNew
package:shared_preferences/shared_preferences.dart 33:16 SharedPreferences.getInstance
===== asynchronous gap ===========================
dart:async _AsyncAwaitCompleter.completeError
package:shared_preferences/shared_preferences.dart SharedPreferences.getInstance
===== asynchronous gap ===========================
dart:async _asyncThenWrapperHelper
package:shared_preferences/shared_preferences.dart SharedPreferences.getInstance
package:shoppaworld_client_app/shared_preferences_helper.dart 25:67 SharedPreferencesHelper.writeValueToKey
'package:shared_preferences/shared_preferences.dart': Failed assertion: line 33 pos 16: 'key.startsWith(_prefix)': is not true.
dart:core _AssertionError._throwNew
package:shared_preferences/shared_preferences.dart 33:16 SharedPreferences.getInstance
===== asynchronous gap ===========================
dart:async _AsyncAwaitCompleter.completeError
package:shared_preferences/shared_preferences.dart SharedPreferences.getInstance
===== asynchronous gap ===========================
dart:async _asyncThenWrapperHelper
package:shared_preferences/shared_preferences.dart SharedPreferences.getInstance
package:shoppaworld_client_app/shared_preferences_helper.dart 25:67 SharedPreferencesHelper.writeValueToKey
'package:shared_preferences/shared_preferences.dart': Failed assertion: line 33 pos 16: 'key.startsWith(_prefix)': is not true.
测试在12:10开始。。。
/home/geordy/SoftwareDevelopment/flatter/flatter\u linux\u v1.2.1-stable/flatter/bin/flatter--无颜色测试--机器测试/共享首选项\u helper\u test.dart
飞镖：核心-断言者-投掷者
包：shared_preferences/shared_preferences.dart 33:16 SharedPreferences.getInstance
======异步间隙===========================
dart:async\u AsyncAwaitCompleter.completeError
包：shared_preferences/shared_preferences.dart SharedPreferences.getInstance
======异步间隙===========================
dart:async\u asyncThenWrapperHelper
包：shared_preferences/shared_preferences.dart SharedPreferences.getInstance
测试/共享\u首选项\u助手\u测试。dart 30:67主。
“package:shared_preferences/shared_preferences.dart”：失败的断言：第33行第16位：“key.startsWith（_prefix）”：不正确。
飞镖：核心-断言者-投掷者
包：shared_preferences/shared_preferences.dart 33:16 SharedPreferences.getInstance
======异步间隙===========================
dart:async\u AsyncAwaitCompleter.completeError
包：shared_preferences/shared_preferences.dart SharedPreferences.getInstance
======异步间隙===========================
dart:async\u asyncThenWrapperHelper
包：shared_preferences/shared_preferences.dart SharedPreferences.getInstance
套餐：shoppaworld\u client\u app/shared\u preferences\u helper.dart 20:67 SharedReferencesHelper.readValueFromKey
“package:shared_preferences/shared_preferences.dart”：失败的断言：第33行第16位：“key.startsWith”
if (methodCall.method == 'getAll') {
return <String, dynamic> {
'test-string' : 'string-value',
'test-int' : 420,
'test-bool' : true
}; // set initial values here if desired
if (methodCall.method == 'getAll') {
return <String, dynamic> {
'flutter.test-string' : 'string-value',
'flutter.test-int' : 420,
'flutter.test-bool' : true
}; // set initial values here if desired