Interview Questions.

Q1. What are the Advantages of the use of Appium?

Ans:

It allows you to write down exams in opposition to a couple of cell systems the use of the same API.

You can write and run your exams the use of any language or check framework.

It is an open-supply tool that you may effortlessly make a contribution to.

Q2. Do I need Appium?

Ans: The answer to this kind of question is constantly: "It depends on what you want!". So the real question becomes: "Which conditions make Appium appropriate for me?". The maximum vital assumption is that you are developing apps (quite apparent I understand). If you're developing an app for a selected platform (and have no intention of assisting others in destiny), Appium isn't always without a doubt required and this is essentially the solution you're seeking out. Appium becomes meaningful handiest if you have apps targeting a couple of platform (Windows, Android or iOS to quote some). Appium becomes vital when you have a webview-based app (always) targeting many systems available.

Q3. How tough is it to installation a working surroundings?

Ans: The assumption is that Appium comes with a no longer-so-tiny documentation, so users aren't really left by myself. However it isn't always so truthful to installation Appium to paintings on a Windows or Mac machine (did now not attempt on Unix thus far). In my revel in, instead of putting in the GUI-based software, it's far lots better to put in the command-line software (that is launched more often). Also beware [sudo], as Appium will absolutely chunk you returned overdue in time if you hooked up it as a [superuser] (this might be the clearest point within the documentation)

Q4. What is Appium's strongest point?

Ans: Appium is primarily based on Selenium that is an HTTP protocol by way of Google designed to automate browsers. The concept is truly very high-quality as automating an app (particularly a webview-based totally one) isn't always so exceptional (in phrases of required APIs) from automating a browser. Appium is also designed to inspire a 2-tier structure: a system runs the take a look at written in a single language ([csharp], [ruby], [javascript] are only some among the many supported ones) and every other one (the check server) in reality executes it. Furthermore the WebDriver protocol targets scalability (because based totally on HTTP), this makes Appium very scalable as well; remember that you may need to jot down your take a look at as soon as, Appium can be in fee of executing it on greater structures.

Q5. What is Appium's weakest factor?

Ans: Open source software program is high-quality, but it clearly comes with some downsides which no one is to be blamed for: unreliability is probably one of the most plain. My take a look at suites need to run many exams every day and those exams need to be stable (it means they ought to fail simplest while the product, or the test has a defect). However it took me a whole lot time to

build layers on top of Appium to make my tests solid. This is particularly actual in relation to synchronizing your checks with the automation: your check issues a command which interprets into an automation command by means of Appium inflicting an interplay on the device; a command returns while after it's been issued, no longer whilst the interaction is surely over! For this motive you'll probable locate yourself adding delays for your checks (if you are doing matters in the incorrect/most-straightforward way) or growing synchronization layers on top of your take a look at APIs (the coolest approach).

Q6. What is the Appium Philosophy?

Ans:

R1. Test the same app you publish to the market

R2. Write your tests in any language, the use of any framework

R3. Use a standard automation specification and API

R4. Build a large and thriving open-source community attempt

Q7. Why do the Appium customers exist?

Ans: We have the Appium clients for three motives:

There wasn't time to undergo a complete commit and release cycle for Selenium as soon as we'd set a release date for 1.0

Some of the things that Appium does, and which its customers simply locate beneficial, are never going to be an authentic part of the new cellular spec. We want a manner to make those extensions to be had

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

Ultimately, the handiest reason for the clients will be #2. And even that is actually proof that we are conforming to the WebDriver spec (via imposing the extension method it recommends) rather than departing from it. The Appium clients are the perfect and cleanest manner to use Appium.

Q8. Explain what's Appium?

Ans: Appium is a freely allotted open source mobile application UI trying out framework.

Q9. What are primary Advantages of the usage of Appium on Sauce Labs?

Ans:

You shop the time it takes to installation the Appium server domestically.

You don't must install/configure the cellular emulators/simulators for your nearby surroundings.

You do not should make any adjustments to the source code of your application.

You can start scaling your checks immediately.

Q10. Which language have to I use to write down my exams?

Ans: This is probably the excellent aspect approximately Appium: you can write your assessments in any language. Since Appium is nothing greater than an HTTP server, a test which needs to be interfaced with Appium can truly use HTTP libraries to create HTTP classes. You just want to recognize the Selenium protocol in an effort to compose the proper commands and that is it!

However, as you can believe, there are already a few libraries doing this for the maximum not unusual languages and development frameworks out there: C#, [dotnet], [java], Ruby, [python] and Javascript are just few examples; and they all are open source11.What type of exams are suitable for Appium?

When it comes to checking out, particularly webview-based apps, there are a number of situations that can be examined also relying at the feature coverage you need to make sure. Appium is quite handy for checking out situations that users will undergo whilst using your app. But if you need to check extra than UX easy interactions, then Appium will become a difficulty. Think about features like keyboarding. It isn't always so clean while complicated touch/keyboard blended eventualities are involved, the probability of a false failure is excessive; do now not misunderstand me on this: I am not saying it's far not possible to do, just no longer so clean as you may think!

Another little nightmare with Appium is changing statistics. When your test wishes to change facts with your app (especially in the incoming course), you may want to play some tricks. So always take into account that sending and receiving information is not that trustworthy. It isn't Appium's fault, the WebDriver specification turned into designed for automating stuff, no longer replacing records!

Q12. Can Appium be used for all my exams?

Ans: This is an implied question in this question. The answer is No (in popular). As I stated before Appium isn't always appropriate for all kinds of tests you might need to put in writing (this depends on the functionalities you need to cover). There are a few situations that can be hard to check and some of them are so platform particular that you'll want to put in writing a few suites just for Android or iOS as an example. Remember that you could always get to do some thing no matter how hard it's far, so you can check all of your hard eventualities the use of Appium, however always maintain in mind one query: is it well worth the time and the ache? Having Appium checking out some eventualities leaving some checks to other tactics is satisfactory too! World isn't black and white!

HubSpot Video
 

Q13. List out the Appium talents?

Ans: Appium capabilities are

Test Web

Provides move-platform for Native and Hybrid cellular automation

Support JSON wire protocol

It does not require recompilation of App

Support automation check on physical device in addition to comparable or emulator each

It has no dependency on cell device

Q14. List out the pre-requisite to apply APPIUM?

Ans: Pre-needful to use APPIUM is

ANDROID SDK

JDK

TestNG

Eclipse

Selenium Server JAR

Webdriver Language Binding Library

APPIUM for Windows

APK App Info On Google Play

Js

Q15. What is Appium's maximum significant dilemma?

Ans: Hand down my chin starting wondering and mumbling. If I needed to provide one unmarried thing you should be aware of approximately Appium before starting the use of it, it would absolutely be: multiple session coping with. Since Appium is a server, it serves HTTP requests; you might have two exceptional computer systems going for walks a test every towards the equal Appium server: what takes place? As for now, Appium does now not aid this situation and the second take a look at will be aborted. This is a sizable trouble, because no queuing machine comes with Appium. If you want to guide multiple classes, you will need to enforce this option by way of your self.

Q16. How active is Appium?

Ans: Appium is available on GitHub and there you may find all you want. The Appium group is chargeable for growing many distinct subsystems revolving round Appium (like APIs for specific languages), accordingly I can tell you that this product is alive and very active. The crew is also pretty well responsive and once you open an trouble you will find a reply after no extra than 36 hours (this ETA comes by means of my personal enjoy). The community round Appium is also quite big and growing each month.

Q17. What approximately overall performance?

Ans: Appium isn't a big software and calls for very little reminiscence. Its architecture is really quite simple and light as Appium acts like a proxy between your test gadget and every platform automation toolkit. Once up and walking, Appium will concentrate to HTTP requests from your checks; when a new session is created, a thing in Appium's Node.Js code known as _proxy_ will ahead those Selenium instructions to lively platform drivers. In the case of Android as an example, Appium will ahead incoming commands to the [chromedriver] (90% of cases, Appium will no longer even exchange instructions while routing them), this happens due to the fact ChromeDriver helps WebDriver and Selenium. For this reason Appium will now not allocate plenty reminiscence itself, you may see a number of memory being allotted by means of different techniques like [adb], ChromeDriver or the iOS automation toolkit (referred to as with the aid of Appium even as checking out and automating).

Q18. Which approach is the pleasant? Testing on real devices or simulators/emulators?

Ans: This is a difficult query due to the fact both alternatives offer one-of-a-kind stages of testability and versatility while testing. There are also many problems associated with every. So my answer could be once more: "It relies upon to your desires!".

Running test on a device is, always in my view, the quality answer as it offers a testing environment completely aligned with the going for walks environment: tests run on the ones devices in which your apps could be used  as soon as posted on shops. However devices need to be related to the Appium server through USB at least, and this is not constantly a very great thing. ADB has a recognised problem for which a device disconnects after a while (although it remained plugged all of the time): due to this your checks might fail after some time and Appium will file that a device couldn't be observed! I had to write a element which resets ADB after some time in order that devices will no longer disconnect.

Q19. Tests on emulators or simulators?

Ans: On the opposite hand emulators/simulators will never disconnect from Appium. They also offer satisfactory alternatives like the ability of selecting the orientation or other hardware-related configurations. However your tests will run a good deal slower (unfortunately, my checks ran three times slower) and do expect a few crazy behavior from the Android emulator which every so often shuts down suddenly. Another trouble is that emulators have a tendency to allocate lots of reminiscence.

Q20. What structures are supported?

Ans: Appium presently supports Android and iOS, no aid for Windows unfortunately.

Q21. Do I need a server machine to run tests on Appium?

Ans: No! Appium promotes a 2-tier architecture in which a take a look at system connects to a take a look at server walking Appium and automating everything. However this configuration isn't obligatory, you could have Appium going for walks on the equal machine wherein your take a look at runs. Instead of connecting to a far flung host, your check will connect to Appium using the loopback deal with.

Q22. List out the constraints of the use of Appium?

Ans:

Appium does not support checking out of Android Version decrease than 4.2

Limited aid for hybrid app checking out. E.G., not feasible to test the switching action of software from the internet app to native and vice-versa

No guide to run Appium Inspector on Microsoft Windows

Q23. How can I test Android drugs?

Ans: The great manner to test on special Android emulators display sizes is by using the unique Android Emulator Skins . For example, in case you use our Platforms Configurator you may see the to be had skins for the specific Android variations (e.G Google Nexus 7 HD, LG Nexus 4, Samsung Galaxy Nexus, Samsung Galaxy S3, and so on). Some of these skins are pills, for example the Google Nexus 7C is a tablet which has a completely massive resolution and really excessive density.

Q24. How can I run guide assessments for my cell native app or cell hybrid app?

Ans: Sauce Labs doesn't aid guide assessments for cellular native app or cellular hybrid app assessments.

Q25.  What sort of keyboard and buttons do the Android emulators have?

Ans: Android Emulators have software program buttons and a hardware keyboard. In a ordinary Android emulator the tool buttons are software program buttons displayed on the right length of the emulator. For the Android emulators with exceptional skins (e.G Google Nexus 7 HD, LG Nexus 4, Samsung Galaxy Nexus, Samsung Galaxy S3, etc) the device buttons are also software program buttons that are overplayed on top of the pores and skin. For instance, if you hover the mouse around the rims of any of our Android emulators with an specific skin, a hover icon will appear and also you must be able to locate something buttons definitely exist at the device that the skinned emulator is attempting to emulate (e.G electricity button along the pinnacle, volume buttons alongside the edge, again/home buttons right under the screen, etc).

Q26. Explain the way to locate DOM element or xPath in a cellular software?

Ans: To locate the DOM detail use “UIAutomateviewer” to locate DOM detail for Android software.
 

Q27. Explain the design idea of Appium?

Ans:

Appium is an “HTTP Server” written the usage of Node.Js platform and drives iOS and Android consultation using Webdriver JSON cord protocol. Hence, earlier than initializing the Appium Server, Node.Js must be pre-installed on the device

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

It gets connection and command request from the consumer and execute that command on cellular devices (Android / iOS)

It responds returned with HTTP responses. Again, to execute this request, it uses the cellular take a look at automation frameworks to power the person interface of the apps. Framework like

Apple Instruments for iOS (Instruments are available only in Xcode 3.0 or later with OS X v10.Five and later)

Google UIAutomator for Android API degree sixteen or better

Selendroid for Android API stage 15 or less

What language does Appium guide?

Appium aid any language that assist HTTP request like Java, JavaScript with Node.Js, Python, Ruby, PHP, Perl, and so forth.

Q28. Explain the professionals and cons of Appium?

Ans:

Pros:

For programmer regardless of the platform, he's automating ( Android or iOS) all of the complexities will stay below unmarried Appium server

It opens the door to cross-platform mobile testing which means that the equal check could paintings on multiple platforms

Appium does no longer require more additives for your App to make it automation friendly

It can automate Hybrid, Web and Native cell packages

Cons:

Running scripts on a couple of iOS simulators at the equal time is feasible with Appium

It makes use of UIAutomator for Android Automation which supports best Android SDK platform, API sixteen or better and to assist the older API’s they have got used some other open supply library referred to as Selendroid

Q29. I have already got platform-particular exams for my app, what should I do emigrate to Appium?

Ans: Unfortunately there is not a magic formulation to translate your exams into Selenium assessments. If you advanced a take a look at framework on different layers and located precise programming ideas, you must be capable of act on a few components in your tests in an effort to migrate your suites to Appium. Your present day assessments are going to be easy to migrate if they're already using an automation framework or some thing close to a command-based interplay. Truth being told, you will probable want to jot down your checks from the beginning, what you could do is without a doubt reusing your present components

Q30. How lots time does it take to put in writing a check in Appium?

Ans: Of route it relies upon by using the take a look at. If your check really runs a scenario, it's going to take as many instructions as the number of interactions needed to be completed (for that reason only a few strains). If you are trying to exchange data, then your test will take extra time for sure and the take a look at will even come to be hard to read.

Q31. Any recommendations or hints to hurry up my check writing pastime or my migration system?

Ans: Here is one piece of recommendation. Since your tests will ordinarily consist in automation obligations (if this situation is not met, you would possibly need to rethink the usage of Appium), make interactions reusable! Do not write the identical sub-eventualities two times on your tests, make a diagram of what your eventualities are and split them in sub activities; you may get a graph in which a few nodes are handy from multiple node. So make the ones tasks parametric and speak to them in your exams! This will make your check writing enjoy higher even while you need emigrate from present checks (with a bit of luck you already did this hobby in your existing suites).

Q32. What test frameworks are supported via Appium?

Ans: Appium does now not support check frameworks due to the fact there's no want to aid them! You can use Appium with all check frameworks you need. NUnit and .NET Unit Test Framework are just a few examples; you'll write your exams the usage of one of the drivers for Appium; hence your assessments will interface with Appium simply in terms of an external dependency. Use something check framework you want!

Q33. Can I engage with my apps using Javascript while I am checking out with Appium?

Ans: Yes! Selenium has instructions to execute Javascript instructions on yourapp out of your exams. Basically you can send a JS script from your test in your app; whilst the commands runs on Appium, the server will ship the script on your app wrapped into an anonymous feature to be completed.

Q34. Is it Returning the values?

Ans: However your Javascript interplay can get greater superior as your script can go back a price on the way to be added on your test when the HTTP reaction is despatched again via Appium once your Javascript has completed going for walks. However this scenario comes with a predicament: your Javascript can send lower back handiest primitive sorts (integers, strings), no longer complex items. The hindrance may be overtaken by means of passing gadgets as JSON strings or by means of modifying Appium's or Selenium's code to support specific gadgets.

Q35. How can I change data among my test and the app I am checking out?

Ans: Appium, clearly the WebDriver specification, is not made for exchanging records along with your app, it's miles made to automate it. For this motive, you'll possibly be amazed in locating records exchange no longer so easy. Actually it isn't always impossible to trade records with your app , but it'll require you to build extra layers of testability.

Q36. What facts exchange is?

Ans: When I say "statistics change" I am now not relating to situations like getting or setting the cost of a textbox. I am also now not referring to getting or putting the value of an element's characteristic. All these items are clean to reap in Appium as Selenium offers commands only for those. By "information trade" I mean replacing facts hosted by way of complicated items stored in specific components of your webview-primarily based app like the window item. Consider when you dispatch and seize events, your app can in all likelihood do many stuff and the approaches statistics flows can be dealt with are many. Some items might also have a country and the country machine in the back of a few eventualities to your app can be big and articulated. For a lot of these reasons you may revel in problems when checking out.

Q37. What are Testability layers?

Ans: In order to make matters higher, as a developer, what you could do is including testability layers in your app. The logic at the back of this approach is absolutely having a few test-related gadgets in your app which are activated most effective when your exams run. I learned approximately this approach from one in every of my colleagues Lukasz and such a technique may be virtually powerful. Enable your testability layers when testing with the intention to make data alternate smooth.

Q38. Is it Exchanging facts thru Javascript?

Ans: Selenium provides instructions do execute Javascript at the app, it is also feasible to execute functions and have them return information (most effective primary kinds). If you exchange JSON strings it need to be best as JSON.Stringify(str) will flip your JSON string into an item on the app facet, whilst on the test facet (depending on the language you are the use of), you can rely upon hundreds of libraries to parse the string you get hold of.

Q39. What are the most hard scenarios to check with Appium?

Ans: Appium isn't always suitable for all styles of checks. There is a particular state of affairs as a way to make your tests extra difficult to put in writing: statistics exchange. I already said it but I will repeat the identical component due to the fact it's far very important: Appium and WebDriver are designed to automate stuff... No longer to alternate facts with them. So what if we need to alternate records with our app during exams? Should we give up on Appium and write our tests manually for every platform? I am no longer pronouncing this, but there are instances in which you must keep in mind this option (not first-class I recognize, however if the effort of writing tests for Appium is better than the benefits, than just throw Appium away).

Appium may be very satisfactory as it will will let you write assessments as soon as for all platofrms rather than writing as many exams because the numbers of platforms you need to guide. So in case you need to change statistics together with your app while trying out it and this statistics drift is the same for all structures, then you definately should in all likelihood hold on using Appium and find a manner to write down a layer on pinnacle of it to handle facts. Depending for your desires this could take time, but, in my enjoy, it is in reality well worth it.

Q40. I do not need to installation an entire infrastructure for my assessments and I don't want to invest in HW. Can Appium help me?

Ans: If you reflect onconsideration on it, what truely is required from you is writing assessments. Then the reality which you must install an Appium server somewhere is something extra. If you want to pass this component, you can depend on some internet offerings that already deployed an entire architecture of Appium servers on your exams. Most of them are online labs and that they assist Selenium and Appium

Q41. I need to debug Appium, is it difficult?

Ans: No truely! Appium is a Node.Js utility, so it is Javascript within the essence. Depending on what you have to debug, you'll likely want to head deeper in your debugging enjoy, however there are some key factors in which putting a breakpoint is continually worth: the proxy factor is worth a point out. In appium/lib/server/proxy.Js you can set a breakpoint in function doProxy(req,res), a good way to be hit everytime instructions are despatched to platform-unique components to be translated into automation
 

Q42. I build my apps with Cordova, is it supported via Appium?

Ans: Cordova is a totally famous system that permits you to expand webview-based totally apps for all structures in short time. Appium does no longer explicitely say that Cordova is supported, even though they do it implicitely as some examples the usage of apps built with Cordova are furnished on Appium's internet site. So the solution is that Cordova ought to now not be a hassle. Why am I being so shy approximately it? Because anything can occur and it simply came about to me!

Cordova and Appium are  unique projects that are developing up separately and independently, of path a mutual acknowledgement is gift, but each groups do now not surely talk to each other while pushing features. So problems can arise (I am presently coping with a hassle regarding Cordova's new edition that is causing my checks to fail).

Q43. Explain what is APPIUM INSPECTOR?

Ans: Similar to Selenium IDE record and Playback tool, Appium has an “Inspector” to report and playback.  It information and plays local application conduct with the aid of analyzing DOM and generates the take a look at scripts in any desired language.  However, Appium Inspector does no longer guide Windows and use UIAutomator viewer in its choice.
 

Q44. What are the basic commands that I can use in the Selenium protocol?

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

Locate net elements on your webview-based app's pages by way of the use of their ids or magnificence names.

Raise events on positioned elements like Click().

Type inside textboxes.

Get or set placed element's attributes.

Execute a few Javascript code.

Change the context in order to test the local a part of your app, or the webview. If your app makes use of greater webviews, you may transfer the context to the webview you preference. If your webview has frames or iframes inner, you could trade context to considered one of them.

Detect alert boxes and push aside or receive them. Be careful approximately this functionality, I skilled some issues.

Q45. I want to run my tests in a multi threaded environment, any problems with that?

Ans: Yes! You need a few unique care when using Appium in a multithreaded surroundings. The problem does now not in reality depend upon the truth of the use of threads on your tests: you can use them but you ought to make sure that no more than one take a look at runs on the equal time in opposition to the identical Appium server. As I noted, Appium does not aid a couple of sessions, and except you implemented a further layer on pinnacle of it to address this situation, some tests may fail.

 Q46.Mention what are the simple requirement for writing Appium tests?

Ans: For writing Appium assessments you require,
 

Driver Client: Appium drives cellular programs as even though it were a user. Using a customer library you write your Appium checks which wrap your check steps and sends to the Appium server over HTTP.

Appium Session: You must first initialize a consultation, as such Appium test takes location within the session. Once the Automation is done for one session, it may be ended and watch for every other consultation

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

Driver Commands: You can write your take a look at steps the usage of a massive and expressive vocabulary of instructions.

Q47. How can I run Android exams with out Appium?

Ans: For older variations of Android Appium may not be supported. For instance, Appium is most effective supported in Android variations 4.Four or later for Mobile Web Application assessments, and Android versions 2.Three, four.0 and later for Mobile Native Application and Mobile Hybrid Application exams.

For those variations wherein Appium is not supported you can request an emulator pushed by way of Webdriver + Selendroid. All you need to do is use our Platforms Configurator and select Selenium for the API rather than Appium.

In the Sauce Labs take a look at you'll word that the top of the emulator says "AndroidDriver Webview App". In addition, you will note that you'll get a "Selenium Log" tab which has the output of the Selendroid motive force.

With an emulator pushed by Webdriver + Selendroid you will be in a position to test Mobile Web Application best. You ought to be able to pick out any Android emulator version from 4.Zero to the state-of-the-art model and any Android emulator pores and skin (e.G "deviceName":"Samsung Galaxy Tab three Emulator").

Q48. How can I run iOS exams without Appium?

Ans: For older versions of iOS Appium won't be supported. For example, Appium is supported in iOS versions 6.1 and later. For in advance versions of iOS the tool or driver used to power your mobile applications automated test is referred to as iWebdriver.

To gain a simulator pushed via iWebdriver use our Platforms Configurator and select Selenium for the API in preference to Appium. With an emulator driven by means of iWebdriver you will be able to test Mobile Web Application most effective. In addition, within the Sauce Labs take a look at you'll notice a "Selenium Log" tab which has the output of iWebdriver.

Q49. What cellular net browsers can I automate in the Android emulator?

Ans: Currently the handiest browser that may be automatic in our Android emulators is the stock browser (i.E Browser). The Android stock browser is an Android taste of 'chromium' which presumably means that its conduct is towards that of Google Chrome.

Q50. Explain what is Appium?

Ans: Appium is a freely disbursed open source mobile software UI Testing framework.

Q51. List out the Appium skills?

Ans: Appium capabilities are
 

Test Web

Provides cross-platform for Native and Hybrid mobile automation

Support JSON twine protocol

It does no longer require recompilation of App

Support automation test on bodily tool as well as comparable or emulator both

It has no dependency on cell device

Q52. List out the pre-requisite to apply APPIUM?

Ans: Pre-considered necessary to use APPIUM is

ANDROID SDK

JDK

TestNG

Eclipse

Selenium Server JAR

Webdriver Language Binding Library

APPIUM for Windows

APK App Info On Google Play

js

Q53. List out the constraints of the usage of Appium?

Ans:

Appium does no longer assist checking out of Android Version decrease than four.2

Limited help for hybrid app trying out. E.G., no longer feasible to test the switching action of software from the web app to local and vice-versa

No help to run Appium Inspector on Microsoft Windows

Q54. Explain how to find DOM element or xPath in a cellular software?

Ans:

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

Q55. Explain the layout idea of Appium?

Ans:

Appium is an "HTTP Server" written using  Node.Js  platform and drives iOS and Android session the use of Webdriver JSON twine protocol. Hence, earlier than initializing the Appium Server, Node.Js ought to be pre-set up at the system

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

It gets connection and command request from the consumer and execute that command on mobile devices (Android / iOS)

It responds back with HTTP responses. Again, to execute this request, it makes use of the cell test automation frameworks to force the consumer interface of the apps. Framework like

Apple Instruments for iOS (Instruments are available simplest in Xcode 3.Zero or later with OS X v10.Five and later)

Google UIAutomator for Android API stage sixteen or better

Selendroid for Android API degree 15 or less

Q55. What language does Appium help?

Ans: Appium assist any language that assist HTTP request like Java, JavaScript with Node.Js, Python, Ruby, PHP, Perl, and so forth.

Q56. Explain the professionals and cons of Appium?

Ans:

Pros:

For programmer irrespective of the platform, he is automating ( Android or iOS) all of the complexities will stay under unmarried Appium server

It opens the door to go-platform mobile testing because of this the equal test could paintings on more than one platforms

Appium does not require greater additives on your App to make it automation pleasant

It can automate Hybrid, Web and Native cellular programs

Cons:

Running scripts on a couple of iOS simulators on the equal time is viable with Appium

It makes use of UIAutomator for Android Automation which helps only Android SDK platform, API sixteen or better and to guide the older API's they have got used any other open source library called Selendroid

Q57. Explain what is APPIUM INSPECTOR?

Ans: Similar to Selenium IDE record and Playback tool, Appium has an "Inspector" to report and playback. It records and plays native application conduct by means of analyzing DOM and generates the test scripts in any favored language. However, Appium Inspector does no longer help Windows and use UIAutomator viewer in its option.

Q58. Mention what are the fundamental requirement for writing Appium assessments?

Ans: For writing Appium checks you require,
 

Driver Client: Appium drives mobile programs as though it were a person. Using a client library you write your Appium tests which wrap your take a look at steps and sends to the Appium server over HTTP.

Appium Session: You must first initialize a consultation, as such Appium test takes place in the consultation. Once the Automation is accomplished for one consultation, it could be ended and watch for every other consultation

Desired Capabilities: To initialize an Appium session you need to define positive parameters called "desired abilties" like PlatformName, PlatformVersion, Device Name and so on. It specifies the kind of automation one requires from the Appium server.

Driver Commands: You can write your take a look at steps the usage of a huge and expressive vocabulary of commands.

Q59. Mention what are the feasible errors one would possibly encounter the usage of Appium?

Ans: The feasible mistakes one may face in Appium consists of

Error 1: The following favored competencies are wished but no longer supplied: Device Name, platformName

Error 2: Could not find adb. Please set the ANDROID_HOME environment variable with the Android SDK root listing course

Error 3: openqa.Selenium.SessionNotCreatedException: A new session could not be created

Error four: How to locate DOM detail or XPath in a cell software?

Q60. Do you need a server gadget to run checks on Appium?

Ans: No, you do not need server gadget to run assessments on Appium. Appium enables a 2-tier structure wherein a take a look at device connects to a test server running Appium and automating the whole thing. You may have Appium walking on the same machine wherein your take a look at runs.

Q61. Is it possible to have interaction with my apps the usage of Javascript even as I am testing with Appium?

Ans: Yes, it is possible to engage with App at the same time as using Javascript. When the commands run on Appium, the server will send the script to your app wrapped into an anonymous function to be accomplished.
 

Q62. Mention what are the maximum hard scenarios to test with Appium?

Ans: The most hard state of affairs to check with Appium is data change.

Q63. While the usage of Appium can I run my assessments in a multithreaded environment?

Ans: Yes, you may run the take a look at in a multithreaded environment however you have to make certain that no more than one take a look at runs at the equal time in opposition to the equal Appium server.

Q64. In Android, do you want an app's .Apk to automate the usage of Appium or you furthermore may want app in my workspace?

Ans: In Android, you simplest want .Apk document to automate the use of Appium.

Q65. Explain what's Appium package master? How to create package?

Ans: Appium bundle grasp is a fixed of equipment manipulate and create appium applications. For instance to create package deal you can use the code

# the use of es7/babe1

Gulp create-package deal –n <package-name>

#ordinary es5

Gulp create-package ---nobabe1 –n <package-name>

The bundle might be generated in the out/<package-name>

Q66. Explain how test frameworks are supported with the aid of Appium?

Ans: Appium does now not support test framework as such there may be no want to aid them. Appium may be used with any frameworks you need.