Appium Lock Device Example Java

This is the first article from the new series dedicated to the mobile testing using Appium test automation framework. Here, I am going to show you how to configure your machine to test Android applications- prerequisite installations and setup of emulators. After that, you will find how to start your application on the emulator and perform actions on it.

What Is Appium?

Appium is an open source test automation framework for use with native, hybrid and mobile web apps. It drives iOS, Android, and Windows apps using the WebDriver protocol. It is the "standard" for mobile test automation.

Machine Setup

1. InstallJava Development Kit (JDK) version 7 or above

(version 8 recommended in order for UI Automation Viewer to work)

2. Set JAVA_HOME environmental variable to where Java JDK is installed

Open in explorer –Control Panel\System and Security\System then click Advanced system settings. Click Environmental Variables.

3. AddJava JDK bin folder to the end ofPath environmental variable

4. Install the Android Studio to install the Android SDK at its default location if it is not already installed: C:\Program Files (x86)\Android\android-sdk – follow the following guide

5. Create a virtual device with the Android Virtual Device Manager

7. Install Appium from the command line (skip if you install Appium Desktop)

npm install -g appium

8. Install Appium Desktop (optional)

Find Android App Info

Install APK to Virtual Device

ADB, Android Debug Bridge, is a command-line utility included with Google's Android SDK. ADB can control your device over USB from a computer, copy files back and forth, install and uninstall apps, run shell commands, and more.

First, start the ADB shell using the command –adb shell.

Before automating your app, you may need to expect it and find some info about it. So, you need to install it on your virtual device. To do so, open the command line and execute the following command.

adb install pathToYourApk/yourTestApp.apk

To find the app package and current activity. Open your application on the virtual device and navigate to the desired view. Then open adb shell and use the following command.

dumpsys window windows | grep -E 'mCurrentFocus|mFocusedApp'

Start Android App in Emulator

You need to make sure that theAppium server is started and listening on port 4723.

	private static AndroidDriver<AndroidElement> driver;
	@BeforeClass
	public void classInit() throws URISyntaxException, MalformedURLException {
	URL testAppUrl = getClass().getClassLoader().getResource( "ApiDemos.apk" );
	File testAppFile = Paths .get(Objects .requireNonNull(testAppUrl).toURI()).toFile();
	String testAppPath = testAppFile.getAbsolutePath();
	var desiredCaps = new DesiredCapabilities();
	desiredCaps.setCapability(MobileCapabilityType .DEVICE_NAME, "android25-test" );
	desiredCaps.setCapability(AndroidMobileCapabilityType .APP_PACKAGE, "com.example.android.apis" );
	desiredCaps.setCapability(MobileCapabilityType .PLATFORM_NAME, "Android" );
	desiredCaps.setCapability(MobileCapabilityType .PLATFORM_VERSION, "7.1" );
	desiredCaps.setCapability(AndroidMobileCapabilityType .APP_ACTIVITY, ".view.Controls1" );
	desiredCaps.setCapability(MobileCapabilityType .APP, testAppPath);
	driver = new AndroidDriver<AndroidElement>(new URL( "http://127.0.0.1:4723/wd/hub" ), desiredCaps);
	driver.closeApp();
	}
	@BeforeMethod
	public void testInit() {
	if (driver != null) {
	driver.launchApp();
	driver.startActivity(new Activity( "com.example.android.apis" , ".view.Controls1" ));
	}
	}
	@AfterMethod
	public void testCleanup() {
	if (driver != null) {
	driver.closeApp();
	}
	}

After the driver is initialised we closed if the app is open. Then before each test, we launch the app and open the desired activity.

Start Appium Service

Instead of starting Appium server manually, we can start it from code.

	appiumLocalService = new AppiumServiceBuilder().usingAnyFreePort().build();
	appiumLocalService.start();

Get Path to Test App

The apk file is copied from the Resources folder to the compiled binaries. This is how we get the path.

	URL testAppUrl = getClass().getClassLoader().getResource( "ApiDemos.apk" );
	File testAppFile = Paths .get(Objects .requireNonNull(testAppUrl).toURI()).toFile();
	String testAppPath = testAppFile.getAbsolutePath();

Initialize Desired Capabilities

	URL testAppUrl = getClass().getClassLoader().getResource( "ApiDemos.apk" );
	File testAppFile = Paths .get(Objects .requireNonNull(testAppUrl).toURI()).toFile();
	String testAppPath = testAppFile.getAbsolutePath();
	var desiredCaps = new DesiredCapabilities();
	desiredCaps.setCapability(MobileCapabilityType .DEVICE_NAME, "android25-test" );
	desiredCaps.setCapability(AndroidMobileCapabilityType .APP_PACKAGE, "com.example.android.apis" );
	desiredCaps.setCapability(MobileCapabilityType .PLATFORM_NAME, "Android" );
	desiredCaps.setCapability(MobileCapabilityType .PLATFORM_VERSION, "7.1" );
	desiredCaps.setCapability(AndroidMobileCapabilityType .APP_ACTIVITY, ".view.Controls1" );
	desiredCaps.setCapability(MobileCapabilityType .APP, testAppPath);

You need to set the device name to the name of your emulator. In the previous section, I showed you how to find the app package and app activity. If you want to test a native or hybrid app, you have to set the app path. And lastly, add the platform name and version.
Once you have initialised the desired capabilities properly you pass them to the AndroidDriver constructor. If you don't want to start Appium server from code, there is a constructor for passing URL.

Find Android Locators

Using the Android SDK UI Automator Viewer, you can find the elements you are looking for. You can find it in the folder C:\Program Files (x86)\Android\android-sdk\tools\bin. Launch the following file –uiautomatorviewer.bat. Then click on the Device Screenshot and an image of the test app will appear.

Find Android Locators with Appium Desktop

Appium provides you with a neat tool that allows you to find the elements you're looking for. With Appium Desktop you can find any item and its locators by either clicking the element on the screenshot image or locating it in the source tree.

After launching Appium Desktop and starting a session, you can locate any element in the source.

Locating Elements with Appium

• By ID

AndroidElement button = driver.findElementById( "com.example.android.apis:id/button" );

• By Class

AndroidElement checkBox = driver.findElementByClassName( "android.widget.CheckBox" );

• By XPath

AndroidElement secondButton = driver.findElementByXPath( "//*[@resource-id='com.example.android.apis:id/button']" );

• By AndroidUIAutomator

AndroidElement thirdButton = driver.findElementByAndroidUIAutomator( "new UiSelector().textContains(\"BUTTO\");" );

Locate Elements inside Parent

	@Test
	public void locatingElementsInsideAnotherElementTest() {
	var mainElement = driver.findElementById( "android:id/content" );
	var button = mainElement.findElementById( "com.example.android.apis:id/button" );
	button.click();
	var checkBox = mainElement.findElementByClassName( "android.widget.CheckBox" );
	checkBox.click();
	var secondButton = mainElement.findElementByXPath( "//*[@resource-id='com.example.android.apis:id/button']" );
	secondButton.click();
	var thirdButton = mainElement.findElementByAndroidUIAutomator( "new UiSelector().textContains(\"BUTTO\");" );
	thirdButton.click();
	}

Gesture Actions in Appium

Swipe

	@Test
	public void swipeTest() {
	driver.startActivity(new Activity( "com.example.android.apis" , ".graphics.FingerPaint" ));
	TouchAction touchAction = new TouchAction(driver);
	AndroidElement element = driver.findElementById( "android:id/content" );
	Point point = element.getLocation();
	Dimension size = element.getSize();
	touchAction.press(PointOption.point(point.getX() + 5, point.getY() + 5))
	.waitAction(WaitOptions.waitOptions(Duration.ofMillis(200)))
	.moveTo(PointOption.point(point.getX() + size.getWidth() - 5, point.getY() + size.getHeight() - 5))
	.release()
	.perform();
	}

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Source: https://www.automatetheplanet.com/getting-started-with-appium-for-android-java-on-windows-in-10-minutes/

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