Java Selenium Interview Questions For 5 Years Experience
5 Years Experience: Top Java Selenium Interview Questions
Java Selenium Interview Questions For 5 Years Experience
Java Selenium is an open-source automated testing tool widely used for testing web applications across different browsers and platforms. It is highly preferred by organizations for its flexibility, compatibility, and community support. For candidates with 5 years of experience in Java Selenium, some key interview questions may include topics such as core Java concepts, object-oriented programming, Selenium WebDriver, test automation frameworks, test scripting, debugging, and experience working with agile methodologies. Candidates may also be expected to demonstrate their knowledge of various tools and libraries used in Selenium, and their ability to write efficient and maintainable test scripts. Hiring managers may also ask about their experience with integrating Selenium into continuous integration and continuous delivery pipelines, their approach towards handling test failures, and their experience with cross-browser testing and mobile testing. Additionally, candidates may be evaluated on their communication skills, problem-solving abilities, and their understanding of software development processes.
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1 - What is Selenium?
Selenium is an open source automation testing tool used for web applications. It automates browser based applications and supports various programming languages such as Java, C#, Python, etc.
2) What are the advantages of using Selenium?
There are several advantages of using Selenium, some of which are:
It is open source, hence free to use.
It supports multiple programming languages.
It can be easily integrated with other testing tools.
It supports cross browser testing.
It can be used for both functional and regression testing.
It provides detailed and reliable test results.
3) What are the different components of Selenium?
Selenium has four main components: Selenium IDE, Selenium Remote Control (RC), Selenium WebDriver, and Selenium Grid. Each component has its specific purpose in the automation testing process.
4) Explain the difference between Selenium IDE, RC, WebDriver, and Grid.
Selenium IDE is a record and playback tool used for creating simple test cases in the Firefox browser. Selenium RC is used to test web applications across different browsers and operating systems, using Selenium commands written in various programming languages. Selenium WebDriver is used to automate web applications and supports multiple browsers, making it faster and more stable than Selenium RC. Selenium Grid is used for running tests in parallel on different machines, improving the execution time.
5) What are the different types of locators in Selenium?
Selenium supports the following locators:
ID: Locates elements by their unique identifier.
Name: Locates elements by their name attribute.
Class Name: Locates elements by their class attribute.
CSS Selector: Locates elements using CSS selectors.
XPath: Locates elements using XPath expressions.
Link Text: Locates links by their exact text.
Partial Link Text: Locates links by a partial match of their text.
Tag Name: Locates elements by their HTML tag.
6) How do you handle dropdowns in Selenium?
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To handle dropdowns in Selenium, the Select class is used. First, we need to locate the dropdown using one of the locators mentioned above. Then, we can use the Select class methods such as selectByValue, selectByIndex, or selectByVisibleText to select the desired option from the dropdown.
7) How do you handle multiple windows in Selenium?
To handle multiple windows in Selenium, we use the getWindowHandles() method to get a set of all the window handles. Then, we can iterate through the set, switch to the desired window using the switchTo() method, and perform our actions.
8) How do you handle frames in Selenium?
To handle frames in Selenium, we use the switchTo() method to switch to the frame we want to interact with, perform our actions, and then switch back to the default content using the defaultContent() method.
9) How do you handle alerts in Selenium?
To handle alerts in Selenium, we can use the switchTo() method to switch to the alert, and then use methods like accept() or dismiss() to handle the alert according to the scenario.
10) Can you automate non web based applications using Selenium?
No, Selenium is specifically designed for web applications and cannot be used to automate non web based applications.
11) What is the difference between get() and navigate().to() in Selenium?
Both get() and navigate().to() methods are used to navigate to a webpage. However, get() method waits for the whole page to load, while navigate().to() does not wait and can navigate to other web pages or URLs.
12) How do you click on elements that are hidden in Selenium?
To click on hidden elements in Selenium, we can use either JavaScriptExecutor or Actions class to perform mouse actions.
13) How do you handle synchronization issues in Selenium?
To handle synchronization issues in Selenium, we can use implicit or explicit waits to wait for elements to load before performing any actions on them. We can also use Thread.sleep() method, but it is not recommended as it can slow down the execution time.
14) How do you handle dynamic elements in Selenium?
To handle dynamic elements in Selenium, we can use various techniques such as using relative XPath, CSS selectors, or regular expressions in locators. We can also use the Explicit Wait feature to wait for the element to appear on the page before interacting with it.
15) How do you handle exceptions in Selenium?
To handle exceptions in Selenium, we can use the try catch block or use the throws keyword in our code to handle exceptions. We can also use TestNG or JUnit framework to handle exceptions in a systematic way.
16) Can you test mobile applications using Selenium?
Yes, we can use Selenium to test mobile applications using Appium, which is built on top of Selenium and supports automation on native, hybrid, and mobile web applications.
17) What is TestNG in Selenium?
TestNG (Test Next Generation) is a testing framework for Java used to perform unit tests, functional tests, integration tests, and end to end tests. It provides features such as parallel execution, test parameterization, and code coverage.
18) What are the advantages of using TestNG in Selenium?
Some of the advantages of using TestNG in Selenium are:
It provides detailed reports of test execution.
It allows for parallel execution of tests, reducing the execution time.
It supports data driven testing using Excel or CSV files.
It has capabilities for grouping and prioritizing tests.
It integrates easily with various CI/CD tools.
19) How do you handle the login pop up in Selenium?
We can use the Alert interface present in Selenium to handle login pop ups. First, we need to switch to the alert using the switchTo() method, enter the username and password, and then click on the login button to authenticate.
20) What is a wait statement in Selenium?
Wait statements in Selenium are used to wait for a certain condition to be met before continuing the execution of the test. They can be implicit or explicit waits and help to handle synchronization issues between the test and the application.
21) What is the importance of page object model in Selenium?
The page object model (POM) is a design pattern in Selenium used to create an object repository for web pages. It emphasizes creating reusable page code, which results in easy code maintenance and reduces code duplication.
22) How do you handle SSL certificate errors in Selenium?
To handle SSL certificate errors in Selenium, we can create a custom class implementing the WebDriver interface to override the acceptCertificate() method and return true to accept the certificate.
23) How do you handle file uploads in Selenium?
To handle file uploads in Selenium, we can use the sendKeys() method to enter the file path in the input field. Alternatively, we can use third party tools like AutoIt or Robot Framework to handle the file upload process.
24) What is a soft assertion in Selenium?
In a soft assertion, all the assertions in a test case are executed even if one of them fails. It is useful when we want to validate multiple elements or conditions in a single test case.
25) What is a hard assertion in Selenium?
In a hard assertion, the execution of the test case stops when an assertion fails. It is useful when we want to ensure that the test case fails immediately after encountering an unexpected situation or behavior.
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