Updated March 29, 2023
Appium Interview Questions And Answers
Appium interview questions help test one’s knowledge in the domain before appearing for an actual interview. It involves questions of varying difficulties on Appium, an open-source testing automation framework used for hybrid, native, and mobile web applications.
It is important to note that Appium is one of the most desired skills among mobile test automation engineers and QA engineers. As such, the average base salary of a mobile test automation engineer knowing Appium, is around $98,141 per year.
Appium supports iOS, Android, and Windows with the help of the WebDriver protocol. Appium can automate any mobile application in any language which uses any test framework. The APIs and databases can also integrate with this tool.
Table of Contents
- Introduction
- Appium Interview Questions (Basic)
- Appium Interview Questions (Advanced)
- Final Thoughts
- Frequently Asked Questions (FAQs)
- Recommended Articles
Key Highlights
- Appium interview questions are essential for preparing for mobile app testing job interviews.
- These questions cover various topics related to Appium, such as its architecture, working principles, and various components.
- Knowing the answers to common Appium interview questions can help one showcase their expertise and experience in mobile app testing, which can increase chances of landing a job in this field.
- Appium interview questions can also help identify gaps in your knowledge and skills related to mobile app testing, which the candidate can work on to improve one’s proficiency.
- Appium interview questions can cover different types of testing scenarios, such as functional testing, performance testing, and UI testing.
Part 1 – Appium Interview Questions (Basic)
Q1. What is Appium, and what is it used for?
Answer:
- Appium is an open-source automation testing framework that allows the testing of mobile applications.
- It also supports different third-party tools and other applications to integrate and perform various operations.
- It is an open-source tool and is available for free, and is hosted on the Github repository.
- Test suites or cases can be written and run using any language or framework irrespective of the OS or platform support, providing greater interoperability.
Q2. What are the different types of apps?
Answer:
Different types of apps include
- Native apps: Native apps are the ones that can be built using either iOS or Android SDK or development kits.
- Hybrid apps: Hybrid Apps are a kind of common APIs that can be used to establish any interaction or communication with the web elements in a generic form.
- Mobile apps: Mobile apps are the ones that are installed on mobile or portable devices, and those can be accessed using mobile browsers.
Q3. What are the advantages of using Appium?
Answer:
- It is used for cross-platform mobile applications and testing.
- It is open-source and free to use.
- Any programming language is compatible with it.
- It mainly supports Selenium WebDriver.
- It does not have a dependency on mobile devices.
- Both testing on emulators and actual mobile devices are supported.
- It has ample developer community support.
Q4. What are the limitations of using Appium?
Answer:
- Working with the mobile testing application requires a minimum Android version of 4.2 or above.
- It has limitations in supporting the testing of hybrid apps.
- The functionality of adding an inspector feature is not available in the Windows operating system.
- It is not easier to perform testing on larger applications in the early stages. One has to implement slowly in the later stages by gradually writing test cases for the smaller modules.
Q5. What is the architecture of Appium? What are its design features and functionalities?
Answer:
- The architecture of the Appium includes different components such as HTTP Server, Node platform, etc.
- The HTTP server for the Appium will be on top of the Node.js platform.
- Node.js handles the iOS and Android sessions using the Web Driver wire protocol (JSON).
- Different client libraries are written using programming languages such as JavaScript, PHP, Python, Ruby, C#, etc.
- The Appium servers establish the connections using the REST APIs from the clients. The automation testing will be carried out in a session.
- The responses will be in the form of HTTP formats.
Part 2 – Appium Interview Questions (Advanced)
Q6. What are the methods for carrying out tests on Appium?
Answer:
Appium allows for mobile app testing across various platforms using different programming languages. Methods for carrying out tests in Appium include-
- Record and playback: Record a test script by performing actions on the mobile app and then play it back to ensure it functions correctly.
- Writing test scripts: Write test scripts using programming languages like Java, Python, Ruby, or JavaScript.
- Integration with testing frameworks: Integrate Appium with popular testing frameworks like TestNG, JUnit, or NUnit.
- Use of Appium GUI: Use the Appium GUI to inspect elements of the mobile app, set up desired capabilities, and run test scripts.
- Execution on a cloud-based platform: Use cloud-based platforms like Sauce Labs, BrowserStack, or AWS Device Farm to execute Appium tests on various mobile devices and operating systems.
- Parallel execution: Use Appium to run multiple tests in parallel, which can save time and increase efficiency.
Q7. What are the different testing frameworks supported by Appium?
Answer:
Some of the different testing frameworks supported by Appium include the following-
- TestNG: TestNG is a popular testing framework for Java that allows for powerful testing features such as grouping, prioritizing, and parallel execution.
- JUnit: JUnit is another popular testing framework for Java that allows for creating simple and readable tests.
- NUnit: NUnit is a testing framework for .NET languages such as C# and VB.NET that provides a range of testing features, such as parameterized tests, test fixtures, and test suites.
- XCTest: XCTest is a testing framework for iOS and macOS apps that provides powerful testing features such as asynchronous testing, UI testing, and performance testing.
- Robot Framework: Robot Framework is a testing framework for Python that supports a range of testing libraries and allows for the creation of high-level test cases.
- Mocha: Mocha is a testing framework for Node.js that provides a range of testing features, such as asynchronous testing and test timeouts.
- Jasmine: Jasmine is a testing framework for JavaScript that provides a range of testing features, such as behavior-driven development and asynchronous testing.
Q8. What are the requirements for writing Appium test cases?
Answer:
- Mobile device and Appium server: A mobile device or emulator to run the mobile app and an Appium server installed on the system.
- Appium client library: The Appium client library allows to write test cases.
- Desired Capabilities: Define desired capabilities, such as the platform name, device name, and app package name, to run the test on a specific mobile device.
- Element locators: Identify unique element locators like IDs or XPaths to interact with mobile app elements.
- Test scenarios: Define test scenarios that cover different features and functions of the mobile app and ensure they are executable.
- Test data: Prepare test data, such as usernames and passwords, to simulate real-world usage of the mobile app.
- Assertions: Define assertions to verify that the mobile app is functioning correctly and meeting the requirements.
Q9. What is the Appium Inspector?
Answer:
- The Appium inspector is similar to the Selenium Web Driver plugin, which gives recording and playback support features.
- It supports the inspection of native or hybrid apps by inspecting the DOM and its performance concerning the application.
Q10. What are the different prerequisites for setting up Appium?
Answer:
To set up the Appium test environment, one requires-
- Android SDK or XCode for iOS.
- Java Development Kit.
- Eclipse.
- Test NG Framework.
- Selenium Web Driver.
- Selenium Server Jars or Libraries.
Final Thoughts
Appium is a popular open-source tool used for mobile app automation testing. As more and more organizations adopt mobile app development, the demand for skilled Appium developers is on the rise. As a result, preparing for an Appium interview is essential to familiarize oneself with the tool and its features. With proper preparation and practice, one can ace their Appium interview and secure a rewarding mobile app automation testing career.
Frequently Asked Questions (FAQs)
1. What is the most difficult scenario to test with Appium?
Answer: The most difficult scenario to test with Appium is network-related issues, such as low network connectivity, slow network speed, and network dropouts.
2. What tests are suitable for Appium?
Answer: Appium is suitable for different types of tests, such as functional testing, regression testing, performance testing, and UI testing.
3. Which language Appium does not support?
Answer: Appium supports many programming languages, such as Java, Python, Ruby, JavaScript, and C#. Currently, Appium does not support Perl.
4. What is Appium’s most considerable limitation?
Answer: Appium’s most considerable limitation is that it cannot test apps that use native libraries or system apps. It can only test apps with a WebView or accessed through the Android or iOS accessibility frameworks.
Recommended Articles
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