dem*_*123 4 react-native detox
如果事先询问过,请提前道歉。我遇到了detox 用于响应本机应用程序的e2e框架,因此想到了尝试一下。
我想在这里自动给出该演示的移动应用- 链接
由于在测试中detox使用testID的定位器之一,所以我在添加一个LoginScreenMaterial.js文件中app/screen/LoginScreenMaterial.js这样
<View testID="login_screen" style={{width: this._width, justifyContent: 'center'}}>
<RkCard style={styles.container}>
<View rkCardHeader style={styles.header}>
<RkText/>
<RkText style={styles.label}>Sign in into your account</RkText>
</View>
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但是,即使在成功构建应用程序之后,我仍然通过此简单测试运行了该应用程序
it('should have welcome screen', async () => {
await expect(element(by.id('login_screen'))).toBeVisible();
});
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但是,测试仍然失败,无法识别该元素。我在此测试中缺少什么?我们不能testID在.js文件中明确添加这样的内容吗?
编辑1:添加错误消息
1) Example
should have welcome screen:
Error: Error: Cannot find UI Element.
Exception with Assertion: {
"Assertion Criteria" : "assertWithMatcher:matcherForSufficientlyVisible(>=0.750000)",
"Element Matcher" : "(((respondsToSelector(accessibilityIdentifier) && accessibilityID('login_screen')) && !(kindOfClass('RCTScrollView'))) || (kindOfClass('UIScrollView') && ((kindOfClass('UIView') || respondsToSelector(accessibilityContainer)) && ancestorThatMatches(((respondsToSelector(accessibilityIdentifier) && accessibilityID('login_screen')) && kindOfClass('RCTScrollView'))))))",
"Recovery Suggestion" : "Check if the element exists in the UI hierarchy printed below. If it exists, adjust the matcher so that it accurately matches element."
}
Error Trace: [
{
"Description" : "Interaction cannot continue because the desired element was not found.",
"Error Domain" : "com.google.earlgrey.ElementInteractionErrorDomain",
"Error Code" : "0",
"File Name" : "GREYElementInteraction.m",
"Function Name" : "-[GREYElementInteraction matchedElementsWithTimeout:error:]",
"Line" : "124"
}
]
at Client.execute (node_modules/detox/src/client/Client.js:74:13)
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我看了看该应用程序,并使其能够正常工作。我在我的devDependencies中设置以下内容。
"devDependencies": {
...
"jest": "23.2.0",
"detox": "8.0.0"
...
},
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我还向package.json添加了
"detox": {
"configurations": {
"ios.sim.debug": {
"binaryPath": "ios/build/Build/Products/Debug-iphonesimulator/BoomApp.app",
"build": "xcodebuild -project ios/BoomApp.xcodeproj -scheme BoomApp -configuration Debug -sdk iphonesimulator -derivedDataPath ios/build",
"type": "ios.simulator",
"name": "iPhone 7"
}
},
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我跑了 detox init -r jest
然后,我可以通过将testID添加到ScrollView LoginScreenBlur.js(第23行)中来识别何时渲染了特定屏幕。
<AppWrapper>
<ScrollView contentContainerStyle={{flex: 1}} testID={'login_screen'}>
....
</ScrollView>
</AppWrapper>
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然后,e2e/firstTest.spec.js我将测试替换为
it('should have loginScreen', async () => {
await expect(element(by.id('login_screen'))).toBeVisible();
});
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这是我运行后的控制台响应 detox build && detox test
node_modules/.bin/jest e2e --config=e2e/config.json --maxWorkers=1 --testNamePattern='^((?!:android:).)*$'
server listening on localhost:64579...
: Searching for device matching iPhone 7...
: Uninstalling org.reactjs.native.example.BoomApp...
: org.reactjs.native.example.BoomApp uninstalled
: Installing /Users/work/Downloads/react-native-ui-kitten-demo-app-master/ios/build/Build/Products/Debug-iphonesimulator/BoomApp.app...
: /Users/work/Downloads/react-native-ui-kitten-demo-app-master/ios/build/Build/Products/Debug-iphonesimulator/BoomApp.app installed
: Terminating org.reactjs.native.example.BoomApp...
: org.reactjs.native.example.BoomApp terminated
: Launching org.reactjs.native.example.BoomApp...
7: org.reactjs.native.example.BoomApp launched. The stdout and stderr logs were recreated, you can watch them with:
tail -F /Users/work/Library/Developer/CoreSimulator/Devices/AF406169-5CF3-4480-9D00-8F934C420043/data/tmp/detox.last_launch_app_log.{out,err}
PASS e2e/firstTest.spec.js (7.935s)
Example
? should have loginScreen (1499ms)
Test Suites: 1 passed, 1 total
Tests: 1 passed, 1 total
Snapshots: 0 total
Time: 8.87s, estimated 9s
Ran all test suites matching /e2e/i with tests matching "^((?!:android:).)*$".
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看来该应用程序默认为启动LoginScreenBlur,因此首先测试它而不是LoginScreenMaterial才有意义。
我注意到的一件事是应用程序使用RKTextInput和RkButton,它们不是本机组件,而是围绕本机组件的包装。这意味着您将需要将testID向下传递给您想要拥有testID的本机组件。我不确定是否react-native-ui-kitten支持辅助功能标签,因此,如果您希望自动输入文本和点击按钮,可能还有更多工作要做。
将testID添加到自定义组件
参见步骤3 https://github.com/wix/detox/blob/master/docs/Introduction.WritingFirstTest.md
请注意,并非所有React组件都支持该道具。不过,React Native中的大多数内置本机组件(如View,Text,TextInput,Switch,ScrollView)都具有支持。如果创建自己的复合组件,则必须手动将该道具传播到正确的本机组件。
https://github.com/wix/detox/blob/master/docs/Troubleshooting.RunningTests.md#cant-find-my-component-even-though-i提供了将testID添加到自定义组件的详细说明。向道具添加了睾丸
简要地说,您应该按照以下方式实现自定义组件。
自定义组件
export class MyCompositeComponent extends Component {
render() {
return (
<TouchableOpacity testID={this.props.testID}>
<View>
<Text>Something something</Text>
</View>
</TouchableOpacity>
);
}
}
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使用自定义组件
然后,您应该像这样使用它。
render() {
return <MyCompositeComponent testID='MyUniqueId123' />;
}
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搜索层次结构
如果您已完成上述操作,并且确定项目具有正确的testID并且测试仍然失败,则可以在视图层次结构中搜索它 https://github.com/wix/detox/blob/master/docs /Troubleshooting.RunningTests.md#debug-view-hierarchy
我不会完整重复以上帖子,但步骤是
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