TCS Automation Engineer Interview Questions and Answers

Explanation of static keywords, methods, and variables with examples.

• Static keyword is used to declare a variable or method that belongs to the class rather than an instance of the class.

• Static variables are shared among all instances of the class.

• Static methods can be called without creating an instance of the class.

• Example: public static int count = 0; // static variable

• Example: public static void printMessage() { // static method }

Answer to Jova codes to reverse strings and remove duplicate in array

• To reverse a string, use the reverse() method or loop through the string in reverse order

• To remove duplicates in an array, use the Set() method or loop through the array and use a temporary object to store unique values

Software testing is the process of evaluating a software application or system to identify any defects or errors.

• It involves executing the software with the intention of finding bugs or issues

• Testing can be done manually or through automated tools

• Types of testing include functional, performance, security, and usability testing

• Testing is important to ensure the software meets the requirements and is of high quality

• Examples of testing tools include Selenium, JMeter, and Appium

Webdriver Waits are used to wait for a certain condition to occur before proceeding with the next command.

• Webdriver Waits are used to handle synchronization issues in test automation.

• There are three types of waits: Implicit, Explicit, and Fluent.

• Commands like 'elementToBeClickable', 'visibilityOf', and 'titleContains' are used with waits.

• Example: WebDriverWait wait = new WebDriverWait(driver, 10); wait.until(ExpectedConditions.elementToBeClickable(By.id("exampleButton")));

Some difficulties faced in automation include handling dynamic elements, synchronization issues, and maintenance of test scripts.

• Handling dynamic elements on the webpage can be challenging as they may change frequently.

• Synchronization issues between the automation tool and the application can lead to test failures.

• Maintenance of test scripts becomes difficult as the application evolves and changes over time.

Testing types refer to different approaches and techniques used to validate software functionality.

• Unit Testing: Testing individual components or modules of the software.

• Integration Testing: Testing how different modules work together.

• System Testing: Testing the entire system as a whole.

• Acceptance Testing: Testing to ensure the software meets the requirements of the end users.

• Performance Testing: Testing the performance and scalability of the software.

• Security Testing: Testin...read more

Selenium is a popular open-source tool used for automating web browsers.

• Selenium is used for automating web browsers to test web applications.

• It supports multiple programming languages like Java, Python, C#, etc.

• Selenium WebDriver is the most commonly used component for writing automation scripts.

• Selenium Grid allows running tests on different machines in parallel.

• Selenium IDE is a record and playback tool for creating quick automation scripts.