Interview Questions.

Q1. How Can I Test Android Tablets?

The best manner to test on different Android emulators display sizes is by means of the usage of the one of a kind Android Emulator Skins . For instance, if you use our Platforms Configurator you may see the available skins for the extraordinary Android variations (e.G Google Nexus 7 HD, LG Nexus four, Samsung Galaxy Nexus, Samsung Galaxy S3, and so forth). Some of these skins are pills, as an instance the Google Nexus 7C is a pill which has a completely large decision and really high density.

Q2. Why Do The Appium Clients Exist?

We have the Appium clients for 3 motives:

1) There wasn't time to go through a complete dedicate and launch cycle for Selenium as soon as we might set a launch date for 1.0

2) Some of the things that Appium does, and which its users absolutely locate useful, are never going to be an reliable a part of the new mobile spec. We want a manner to make those extensions to be had

3) There are a few behaviors whose country is as yet unknown. They might make it into the spec and get deleted from the customers, or they might be in class #2

Ultimately, the simplest purpose for the clients may be #@And even that is sincerely evidence that we're conforming to the WebDriver spec (by imposing the extension approach it recommends) as opposed to departing from it. The Appium clients are the perfect and cleanest way to use Appium.

Q3. I Already Have Platform-precise Tests For My App, What Should I Do To Migrate To Appium?

Unfortunately there isn't always a magic components to trlate your checks into Selenium tests. If you evolved a check framework on extraordinary layers and located appropriate programming standards, you should be capable of act on some components to your exams if you want to migrate your suites to Appium.

Your contemporary exams are going to be easy to migrate if they're already using an automation framework or some thing close to a command-based totally interplay. Truth being informed, you may in all likelihood want to write down your checks from the beginning, what you may do is definitely reusing your existing additives.

Q4. What Are The Basic Commands That I Can Use In The Selenium Protocol?

Google's Selenium provides a group of instructions to automate your app. With those commands you may basically do the subsequent:

Locate web factors on your webview-primarily based app's pages by means of the use of their ids or magnificence names.

Raise activities on located factors like Click().

Type inner textboxes.

Get or set located element's attributes.

Execute some Javascript code.

Change the context in order to test the local part of your app, or the webview. If your app uses greater webviews, you could switch the context to the webview you desire. If your webview has frames or iframes inner, you can change context to one of them.

Detect alert bins and disregard or take delivery of them.

Q5. What Is Appium's Strongest Point?

Appium is based on Selenium which is an HTTP protocol through Google designed to automate browsers. The concept is certainly very high-quality as automating an app (mainly a webview-based one) isn't always so unique (in terms of required APIs) from automating a browser.

Appium is also designed to encourage a 2-tier structure: a gadget runs the take a look at written in one language ([csharp], [ruby], [javascript] are only some among the many supported ones) and every other one (the take a look at server) honestly executes it. Furthermore the WebDriver protocol objectives scalability (due to the fact based totally on HTTP), this makes Appium very scalable as properly; remember that you may need to jot down your check once, Appium will be in fee of executing it on more structures.

Q6. How Can I Run Ios Tests Without Appium?

For older variations of iOS Appium may not be supported. For instance, Appium is supported in iOS versions 6.1 and later. For in advance versions of iOS the device or driving force used to drive your mobile applications automated take a look at is referred to as iWebdriver.

To gain a simulator pushed by way of iWebdriver use our Platforms Configurator and pick out Selenium for the API instead of Appium. With an emulator pushed by means of iWebdriver you may be capable to test Mobile Web Application most effective. In addition, inside the Sauce Labs take a look at you will be aware a "Selenium Log" tab which has the output of iWebdriver.

Q7. What Type Of Tests Are Suitable For Appium?

When it comes to checking out, specifically webview-primarily based apps, there are a variety of situations that can be tested also relying at the characteristic insurance you need to ensure. Appium is quite accessible for testing scenarios that users will undergo while using your app.

But in case you want to test more than UX simple interactions, then Appium becomes a hassle. Think about functions like keyboarding. It isn't always so smooth whilst complex touch/keyboard combined situations are involved, the chance of a false failure is high; do no longer misunderstand me on this: I am now not announcing it is impossible to do, just not so easy as you would possibly assume!

Another little nightmare with Appium is changing data. When your take a look at needs to alternate facts together with your app (particularly inside the incoming direction), you'll want to play a few tricks. So always keep in mind that sending and receiving data is not that honest. It isn't Appium's fault, the WebDriver specification become designed for automating stuff, not exchanging data!

Q8. What About Performance?

Appium is not a big application and calls for little or no reminiscence. Its architecture is certainly quite simple and mild as Appium acts like a proxy among your take a look at gadget and every platform automation toolkit. Once up and going for walks, Appium will concentrate to HTTP requests from your assessments; when a new consultation is created, a issue in Appium's Node.Js code referred to as _proxy_ will ahead those Selenium commands to energetic platform drivers.

In the case of Android as an instance, Appium will ahead incoming commands to the [chromedriver] (90% of cases, Appium will now not even exchange instructions while routing them), this happens due to the fact ChromeDriver helps WebDriver and Selenium. For this purpose Appium will no longer allocate plenty reminiscence itself, you'll see quite a few memory being allotted by way of other techniques like [adb], ChromeDriver or the iOS automation toolkit (called by way of Appium at the same time as testing and automating).

Q9. List Out The Pre-needful To Use Appium?

Pre-requisite to apply APPIUM is:

ANDROID SDK

JDK

TestNG

Eclipse

Selenium Server JAR

Webdriver Language Binding Library

APPIUM for Windows

APK App Info On Google Play

Js

Q10. How Much Time Does It Take To Write A Test In Appium?

Of course it depends via the take a look at. If your check truly runs a state of affairs, it's going to take as many instructions as the wide variety of interactions needed to be completed (for this reason only a few traces). If you are attempting to alternate information, then your check will take more time for certain and the take a look at will even come to be difficult to study.

Q11. What Data Exchange Is?

When I say "statistics trade" I am no longer regarding situations like getting or putting the value of a textbox. I am also now not regarding getting or setting the value of an detail's attribute. All these items are clean to obtain in Appium as Selenium gives commands just for those. By "data trade" I imply exchanging facts hosted by complicated gadgets saved in one of a kind elements of your webview-based totally app just like the window object.

Consider while you dispatch and capture events, your app can possibly do many stuff and the ways facts flows may be treated are many. Some items may have a nation and the state machine in the back of a few situations to your app can be big and articulated. For most of these reasons you would possibly revel in troubles whilst trying out.

Q12. Which Language Should I Use To Write My Tests?

This is probably the excellent thing approximately Appium: you can write your checks in any language. Since Appium is nothing greater than an HTTP server, a check which needs to be interfaced with Appium can in reality use HTTP libraries to create HTTP sessions. You simply want to recognise the Selenium protocol so one can compose the right instructions and that's it!

However, as you may imagine, there are already some libraries doing this for the maximum commonplace languages and improvement frameworks obtainable: C#, [dotnet], [java], Ruby, [python] and Javascript are just few examples; and they all are open supply initiatives.

Q13. Explain The Pros And Cons Of Appium?

Pros:

For programmer no matter the platform, he's automating ( Android or iOS) all the complexities will stay underneath unmarried Appium server

It opens the door to pass-platform cellular checking out which me the same test could paintings on multiple platforms

Appium does no longer require more additives on your App to make it automation pleasant

It can automate Hybrid, Web and Native cellular packages

Cons:

Running scripts on multiple iOS simulators on the same time is possible with Appium

It uses UIAutomator for Android Automation which helps best Android SDK platform, API 16 or higher and to support the older API’s they've used any other open supply library known as Selendroid.

Q14. Mention What Are The Basic Requirement For Writing Appium Tests?

For writing Appium exams you require:

Driver Client: Appium drives cellular applications as although it have been a user. Using a consumer library you write your Appium exams which wrap your test steps and sends to the Appium server over HTTP.

Appium Session: You should first initialize a session, as such Appium take a look at takes place in the session. Once the Automation is finished for one consultation, it can be ended and look forward to every other session

Desired Capabilities: To initialize an Appium consultation you need to define positive parameters referred to as “favored capabilities” like PlatformName, PlatformVersion, Device Name and so on. It specifies the type of automation one requires from the Appium server.

Driver Commands: You can write your check steps using a large and expressive vocabulary of commands.

Q15. What Mobile Web Browsers Can I Automate In The Android Emulator?

Currently the most effective browser that may be computerized in our Android emulators is the stock browser (i.E Browser). The Android stock browser is an Android flavor of 'chromium' which presumably implies that its behavior is closer to that of Google Chrome.

Q16. I Need To Debug Appium, Is It Difficult?

No virtually! Appium is a Node.Js software, so it's miles Javascript in the essence. The code is to be had on GitHub and can be downloaded in few seconds as it's far small and not so complicated. Depending on what you have to debug, you'll probable need to move deeper to your debugging experience, however there are a few key points in which putting a breakpoint is always worth: the proxy aspect is really worth a mention. In appium/lib/server/proxy.Js you could set a breakpoint in function doProxy(req,res), as a way to be hit everytime commands are sent to platform-precise additives to be trlated into automation instructions.

Q17. What Language Does Appium Support?

Appium help any language that help HTTP request like Java, JavaScript with Node.Js, Python, Ruby, PHP, Perl, and many others.

Q18. What Type Of Keyboard And Buttons Do The Android Emulators Have?

Android Emulators have software buttons and a hardware keyboard. In a regular Android emulator the tool buttons are software program buttons displayed at the right length of the emulator. For the Android emulators with specific skins (e.G Google Nexus 7 HD, LG Nexus four, Samsung Galaxy Nexus, Samsung Galaxy S3, etc) the device buttons also are software program buttons which are overplayed on top of the skin. For instance, if you hover the mouse round the rims of any of our Android emulators with an exact pores and skin, a hover icon will appear and you have to be able to locate something buttons without a doubt exist at the device that the skinned emulator is attempting to emulate (e.G energy button alongside the pinnacle, volume buttons along the threshold, returned/domestic buttons proper under the display, and many others).

Q19. What Are The Advantages Of Using Appium?

It allows you to jot down checks in opposition to a couple of cell systems the use of the identical API.

You can write and run your tests the usage of any language or take a look at framework.

It is an open-source device that you may without difficulty contribute to.

Q20. What Platforms Are Supported?

Appium presently helps Android and iOS, no help for Windows unfortunately.

Q21. Explain The Design Concept Of Appium?

Appium is an “HTTP Server” written the usage of Node.Js platform and drives iOS and Android session the usage of Webdriver JSON cord protocol. Hence, earlier than initializing the Appium Server, Node.Js ought to be pre-hooked up on the machine

When Appium is downloaded and set up, then a server is setup on our gadget that exposes a REST API

It receives connection and command request from the client and execute that command on cell gadgets (Android / iOS)

It responds back with HTTP responses. Again, to execute this request, it makes use of the cellular take a look at automation frameworks to force the user interface of the apps. Framework like

Apple Instruments for iOS (Instruments are to be had only in Xcode three.0 or later with OS X v10.5 and later)

Google UIAutomator for Android API level sixteen or better

Selendroid for Android API level 15 or less

Q22. What Are Main Advantages Of Using Appium On Sauce Labs?

You keep the time it takes to set up the Appium server domestically.

You do not need to install/configure the cellular emulators/simulators to your nearby environment.

You do not must make any modifications to the supply code of your application.

You can start scaling your exams instantly.

Q23. Can I Interact With My Apps Using Javascript While I Am Testing With Appium?

Yes! Selenium has commands to execute Javascript commands to your app from your assessments. Basically you may ship a JS script from your take a look at in your app; while the commands runs on Appium, the server will send the script in your app wrapped into an anonymous characteristic to be completed.

Q24. Explain What Is Appium Inspector?

Similar to Selenium IDE document and Playback device, Appium has an “Inspector” to report and playback. It records and plays local utility conduct by means of analyzing DOM and generates the test scripts in any preferred language. However, Appium Inspector does now not help Windows and use UIAutomator viewer in its choice.

Q25. I Don't Want To Set Up A Whole Infrastructure For My Tests And I Don't Want To Spend Money On Hw. Can Appium Help Me?

If you think about it, what honestly is required from you is writing tests. Then the reality which you must set up an Appium server somewhere is some thing extra.

If you want to skip this part, you could depend on a few web services that already deployed an entire architecture of Appium servers on your exams. Most of them are on-line labs and that they help Selenium and Appium.

Q26. Is It Exchanging Data Through Javascript?

Selenium affords commands do execute Javascript on the app, it is also viable to execute features and feature them return facts (best fundamental types).

If you change JSON strings it have to be first-class as JSON.Stringify(str) will flip your JSON string into an item at the app facet, at the same time as at the take a look at facet (depending on the language you're the usage of), you can rely on masses of libraries to parse the string you receive.

Q27. Is It Returning The Values?

How ever your Javascript interplay can get extra advanced as your script can go back a value in order to be introduced for your test while the HTTP reaction is despatched lower back by way of Appium as soon as your Javascript has finished running.

However this scenario comes with a dilemma: your Javascript can ship lower back only primitive types (integers, strings), not complex gadgets. The dilemma can be overtaken by way of passing items as JSON strings or via editing Appium's or Selenium's code to assist unique objects.

Q28. How Can I Run Manual Tests For My Mobile Native App Or Mobile Hybrid App?

Sauce Labs does not support guide assessments for cellular native app or cell hybrid app tests.

Q29. How Can I Run Android Tests Without Appium?

For older variations of Android Appium might not be supported. For example, Appium is handiest supported in Android variations four.4 or later for Mobile Web Application exams, and Android variations 2.3, four.0 and later for Mobile Native Application and Mobile Hybrid Application checks.

For those variations wherein Appium isn't always supported you could request an emulator pushed by using Webdriver + Selendroid. All you need to do is find our Platforms Configurator and pick Selenium for the API as opposed to Appium.

In the Sauce Labs check you may note that the top of the emulator says "AndroidDriver Webview App". In addition, you'll note that you may get a "Selenium Log" tab which has the output of the Selendroid driver.

With an emulator pushed via Webdriver + Selendroid you'll be able to test Mobile Web Application best. You need to be capable of pick out any Android emulator model from four.Zero to the latest version and any Android emulator pores and skin (e.G "deviceName":"Samsung Galaxy Tab three Emulator").

Q30. How Can I Exchange Data Between My Test And The App I Am Testing?

Appium, certainly the WebDriver specification, isn't always made for changing facts along with your app, it's far made to automate it. For this purpose, you will in all likelihood be surprised in locating facts change now not so clean. Actually it isn't impossible to trade statistics along with your app , however it will require you to build more layers of testability.

Q31. What Is The Appium Philosophy?

R@Test the equal app you publish to the marketplace

R@Write your tests in any language, the usage of any framework

R@Use a general automation specification and API

R@Build a large and thriving open-source community effort

Q32. List Out The Appium Abilities?

Appium skills are:

Test Web

Provides go-platform for Native and Hybrid cell automation

Support JSON cord protocol

It does now not require recompilation of App

Support automation check on physical device as well as comparable or emulator each

It has no dependency on cellular device.

Q33. Explain What Is Appium?

Appium is a freely dispensed open source cell utility UI checking out framework.

Q34. List Out The Limitations Of Using Appium?

Appium does now not aid testing of Android Version decrease than four.2

Limited help for hybrid app trying out. E.G., not possible to check the switching motion of utility from the net app to native and vice-versa

No help to run Appium Inspector on Microsoft Windows.

Q35. Do I Need A Server Machine To Run Tests On Appium?

No! Appium promotes a 2-tier structure where a take a look at gadget connects to a check server running Appium and automating everything. However this configuration isn't always obligatory, you could have Appium jogging at the identical device wherein your check runs. Instead of connecting to a faraway host, your test will connect with Appium using the loopback address.

Q36. Any Tips Or Tricks To Speed Up My Test Writing Activity Or My Migration Process?

Here is one piece of recommendation. Since your checks will in general consist in automation responsibilities (if this circumstance isn't met, you might need to reconsider the use of Appium), make interactions reusable! Do not write the equal sub-scenarios twice to your tests, make a diagram of what your scenarios are and break up them in sub sports; you may get a graph where some nodes are available from more than one node.

So make those duties parametric and contact them on your exams! This will make your test writing enjoy higher even while you want emigrate from current checks (with any luck you already did this pastime to your current suites).

Q37. What Test Frameworks Are Supported By Appium?

Appium does not assist check frameworks due to the fact there's no need to support them! You can use Appium with all test frameworks you need. NUnit and .NET Unit Test Framework are only a few examples; you will write your exams using one of the drivers for Appium; accordingly your exams will interface with Appium just in terms of an outside dependency. Use whatever take a look at framework you need!

Q38. Explain How To Find Dom Element Or Xpath In A Mobile Application?

To locate the DOM detail use “UIAutomateviewer” to find DOM element for Android software.

Q39. I Want To Run My Tests In A Multithreaded Environment, Any Problems With That?

Yes! You want a few unique care whilst using Appium in a multithreaded environment. The hassle does now not honestly depend on the fact of the usage of threads on your exams: you could use them but you have to make certain that no multiple test runs on the identical time in opposition to the identical Appium server. As I mentioned, Appium does not aid a couple of periods, and except you applied an extra layer on top of it to address this situation, some assessments may fail.