UiAutomator2.0 - Toast信息的验证
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目录
问题:在做UI自动化测试时,偶尔会碰到 Toast 这种提示信息(如图),通过Uiautomatorviewer 无法获该类控件的信息。所以无法验证,该条case不能实现。然后就没然后了...
思考:在《UiAutomator2.0 - 与AccessibilityService的关联》实验后,发现Toast提示信息所属事件为 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? AccessibilityEvent.TYPE_NOTIFICATION_STATE_CHANGED
,依据《UiAutomator2.0 - 控件实现点击操作原理》中的分析,那也可以模仿源码监听该事件啊!美滋滋~~
实现:准备着手实现时,发现其他类的相关方法并没公开,只有UiAutomation这个类公开了setOnAccessibilityEventListener方法(通过该方法进行监听Toast)。突破口找到了,那么就从这个方法开始实现。
1、创建一个 VerifyToast类,代码如下:
package com.testtoast;
import android.app.Notification;
import android.app.UiAutomation;
import android.os.Parcelable;
import android.support.test.InstrumentationRegistry;
import android.util.Log;
import android.view.accessibility.AccessibilityEvent;
/**
* @author zzw
* Toast Validation Helper
*/
public class VerifyToast {
private static final String TAG = TestCase_FM.class.getSimpleName();
private static VerifyToast verifyToast = new VerifyToast();
private boolean isPass;
private VerifyToast(){}
public static VerifyToast getVerifyToast(){
return verifyToast;
}
public boolean getIsPass(){
return isPass;
}
public VerifyToast setIsPass(boolean isPass){
this.isPass = isPass;
return this;
}
/**
* Listen for toast prompts
* @param pck The package name of toast
* @param msg Toast info
*/
public void monitoringToast(final String pck, final String msg){
UiAutomation uiAutomation = InstrumentationRegistry.getInstrumentation().getUiAutomation();
uiAutomation.setOnAccessibilityEventListener(new UiAutomation.OnAccessibilityEventListener() {
@Override
public void onAccessibilityEvent(AccessibilityEvent event) {
if(event.getEventType() == AccessibilityEvent.TYPE_NOTIFICATION_STATE_CHANGED){
Log.d(TAG, "onAccessibilityEvent:"+
String.format("--pck: %s --msg: %s",getPackage(event),getMessage(event)));
isPass = pck.equals(getPackage(event)) && msg.equals(getMessage(event));
Log.d(TAG, "onAccessibilityEvent: isPass = "+ isPass);
}
}
});
}
// 获取监听的包名
private String getPackage(AccessibilityEvent event){
return (String) event.getPackageName();
}
// 获取 Toast 信息
private String getMessage(AccessibilityEvent event){
String message = null;
Parcelable parcelable = event.getParcelableData();
if (!(parcelable instanceof Notification)) {
message = (String) event.getText().get(0);
}
return message;
}
}
2、测试用例中的调用
package com.testtoast;
import android.support.test.InstrumentationRegistry;
import android.support.test.runner.AndroidJUnit4;
import android.support.test.uiautomator.UiDevice;
import android.support.test.uiautomator.UiObject;
import android.support.test.uiautomator.UiSelector;
import android.util.Log;
import com.zzw.commonutils.UiApps;
import com.zzw.tools.ScreenCap;
import org.junit.BeforeClass;
import org.junit.FixMethodOrder;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.MethodSorters;
import static junit.framework.Assert.assertTrue;
/**
* @author zzw
* Test for Toast
*/
@RunWith(AndroidJUnit4.class)
@FixMethodOrder(MethodSorters.NAME_ASCENDING)
public class TestCase_FM {
private static final String TAG = TestCase_FM.class.getSimpleName();
private UiDevice device= UiDevice.getInstance(InstrumentationRegistry.getInstrumentation());
private String catchFail = "Catch_Pic";
@BeforeClass
public static void before(){
Log.d(TAG, "before: -----------------------------start-------------");
}
@Test
public void testCase_GetToast() throws Throwable {
VerifyToast verifyToast = VerifyToast.getVerifyToast();
String pck = "com.caf.fmradio";
String msg = "Please plug in a Headset to use FM Radio";
device.pressHome();
UiObject app= device.findObject(new UiSelector().text("FM Radio"));
Log.d(TAG, "testCase_GetToast: result == "+verifyToast.getIsPass());
verifyToast.setIsPass(false).monitoringToast(pck,msg);
try{
new UiApps().toOpenApp(app); //自己封装打开app的方法
assertTrue("Toast prompt error", verifyToast.getIsPass());
}catch (Throwable e){
e.printStackTrace();
// 自己封装的截图方法
ScreenCap.takeScreenshotToPicturesDirPath(catchFail);
throw e;
}
Log.d(TAG, "testCase_GetToast: result == "+verifyToast.getIsPass());
}
}
注:在 adb shell uiautomator --help
中有这么一句
events: prints out accessibility events until terminated
那么在控制台也直观的查看当前的Accessibility事件了,结果如图:
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