Automation Testing Interview Questions for Architects & Directors (₹40–50 LPA)

Compare effort saved by running automated tests repeatedly against the cost of building and maintaining scripts, counting execution time, defects found earlier and release speed.

Use isDisplayed(), isEnabled() and isSelected() on the WebElement before interacting or asserting.

If the element is <input type="file">, use element.sendKeys("C:/path/file.pdf"). Use the Robot class or AutoIt only as a last resort for OS dialogs.

Do not automate it; ask for a test environment where CAPTCHA is disabled or use test keys, or a bypass token agreed with developers.

Classes such as Integer and Double that wrap primitive types as objects, needed for collections and for parsing text from web elements.

Define parameter name and value in the XML and read them with @Parameters in the test or configuration method.

id, name, className, tagName, linkText, partialLinkText, CSS selector and XPath. Prefer stable ids or CSS, using XPath when needed.

An authorisation framework where a client obtains an access token from an auth server and sends it as a Bearer token; tests fetch and reuse the token in setup.

200 OK, 201 Created, 400 bad request, 401 unauthenticated, 403 forbidden, 404 not found and 500 server error.

Use headers such as Bearer tokens, basic auth, API keys or OAuth flows; fetch a token in a setup step and reuse it.

A subclass redefines a parent method. Frameworks use it to customise base behaviour, such as overriding a wait or click method in a base page class.

Verifying that a provider and consumer agree on request and response formats, using tools like Pact, to catch breaking changes early.

TestNG reports, ExtentReports and Allure give charts, screenshots and logs that are easy to share with the team.

throw actually raises an exception object inside a method; throws declares in the method signature that it may pass an exception to the caller.

Continuous Integration builds and tests every commit, and Continuous Delivery ships automatically. Automated tests give fast feedback and gate releases.

Headless mode or screen resolution, timing issues, environment data, missing dependencies, browser–driver version mismatch or parallel conflicts. Check logs and failure screenshots and make waits robust.

An interface for systems to talk to each other. GET reads, POST creates, PUT replaces, PATCH updates partially and DELETE removes.

WebDriver sends commands over HTTP (W3C protocol) to a browser-specific driver such as chromedriver, which controls the actual browser.

It makes a test run only after specified tests pass, otherwise it is skipped. Use sparingly as it creates coupled tests.

A configuration file to define suites, tests, classes, groups, parameters and parallel execution settings.

Use JavascriptExecutor with window.scrollTo or scrollIntoView, or the Actions class scroll methods in Selenium 4.

Hard assert stops the test at the first failure; SoftAssert collects failures and reports them together when assertAll() is called.

ArrayList and LinkedList for lists, HashSet for unique values, HashMap for key-value test data, and Iterator for traversing them, for example collecting web elements in a list.

A lightweight text format of key-value pairs and arrays used in API requests and responses, validated field by field in tests.

Arrays have a fixed size and can hold primitives; ArrayList grows dynamically, holds objects and offers helper methods.

Set window size explicitly, use proper waits, check animations and viewport differences, and capture screenshots and logs to find timing issues.

Static members belong to the class and are shared by all instances; non-static members belong to each object.

close() closes the current window; quit() closes all windows and ends the driver session.

Use CSS or XPath with contains(), starts-with() or stable attributes, relative axes, or data-test attributes agreed with developers.

Comparable defines the natural order inside the class (compareTo); Comparator defines custom orders externally (compare), useful for sorting test data in several ways.

Use then().statusCode(200).body("data.id", equalTo(5)), or extract() the response and assert fields with JsonPath.

Maven project → POM with a BasePage → driver factory with ThreadLocal → config files → data-driven utilities (Excel/JSON) → TestNG or Cucumber runner → logging → Extent reports with screenshots on failure → Jenkins pipeline.

An abstract class can hold state and concrete methods; an interface defines a contract (with default methods since Java 8). A class extends one abstract class but can implement many interfaces.

driver.switchTo().alert() lets you accept, dismiss, read text or send keys. Browser windows are handled with window handles.

A Java library that makes API tests readable using given-when-then, with easy request building, response validation and JSON path support.

Encapsulation, inheritance, polymorphism and abstraction. Testers use them to build reusable page classes, base tests and utility libraries.

Cast the driver to JavascriptExecutor and use executeScript, for example to scroll into view or click hidden elements.

Click to open the dropdown, then locate the option by its text, e.g. //li[text()='India'], and click it. Add an explicit wait for the animation.

Running the same test logic with multiple data sets from Excel, CSV, JSON or a database, so coverage increases without duplicating code.

A test framework offering annotations, grouping, prioritisation, parallel runs, data providers and reports, which structure and scale Selenium tests.

switchTo().frame(index, name or element) enters the frame, and switchTo().defaultContent() returns to the main page.

Git tracks changes, enables code review, branching and rollback and lets teams collaborate on the framework safely.

One interface, many forms. WebDriver driver = new ChromeDriver() lets the same test code run on any browser class that implements WebDriver.

Implement ITestListener.onTestFailure(): File src = ((TakesScreenshot) driver).getScreenshotAs(OutputType.FILE); then copy it into the reports folder.

Locate rows and columns with XPath such as //table//tr and //td, loop through them to read or click cells, or build the XPath dynamically from the row text.

Lambdas are short anonymous functions; streams process collections declaratively with filter, map and collect, for example filtering link text from a list of elements.

given().baseUri(url) .when().get("/users/1") .then().statusCode(200).body("id", equalTo(1));

findElement returns the first match and throws NoSuchElementException if nothing is found. findElements returns a List (empty if nothing is found) — handy to check whether an element exists.

Re-locate the element after the DOM refreshes, use explicit waits for the refreshed element, don't keep element references for long, or wrap the action in retry logic.

POST creates a resource, PUT replaces the whole resource (idempotent) and PATCH updates part of it.

Docker packages tools in containers so tests run identically everywhere; Selenium Grid and browsers can be started quickly in containers.

A callback where one system sends an HTTP request to another when an event occurs. Test with a mock receiver or tools such as webhook.site and verify the payload.

It runs tests in parallel across multiple machines and browsers using a hub and nodes, cutting execution time and increasing browser coverage.

Code pushed to Git → Jenkins job triggers (webhook or schedule) → mvn clean test with the suite XML → reports and screenshots published → notifications on Slack/email → failures triaged before release.

Mouse and keyboard actions such as hover, drag and drop, double click, right click and key combinations, built with moveToElement(...).perform().

Keep URLs and credentials in per-environment config files or variables, choose with a command-line parameter and never hard-code secrets.

Use Apache POI for Excel and the Properties class for config files, loaded in a utility class so tests read data instead of hard-coding it.

ArrayList stores an ordered list (e.g. all product names on a page). HashMap stores key–value pairs (e.g. test data or config properties).

Keep credentials in external data, parameterise the test with a data provider, reuse a login method in a page class, and clear sessions between roles.

Absolute starts from the root (/html/...) and breaks easily; relative starts anywhere with // and is more stable, for example //input[@id='email'].

Create a job or pipeline that checks out code, runs mvn test, publishes reports and triggers on commits or schedules.

ArrayList has fast random access and slower inserts in the middle; LinkedList has fast inserts and deletes but slow access by index.

Use external files or APIs and database setup scripts, generate unique data per run, and clean up afterwards so tests stay independent.

this refers to the current object; super refers to the parent class, used to call parent constructors and methods.

It uses the key's hashCode to find a bucket and equals to resolve collisions, giving O(1) average lookups; Java 8 converts long buckets into trees.

A framework combining data-driven, keyword-driven and POM approaches with reporting and utilities, giving flexibility and reuse.

Schedule the job, spin up environments or containers, run suites in parallel, store reports and screenshots, notify failures on Slack or email and track trends.

Runtime events that disrupt flow. Use try-catch-finally, throw, throws, and custom exceptions; checked exceptions must be handled while unchecked ones need not be.

//button[normalize-space()='Login'] //button[contains(text(),'Login')]

A design pattern where each page is a class holding its locators and actions, so tests stay readable and a locator change is fixed in one place.

A method annotated with @DataProvider returns a 2D object array and the test with dataProvider = "name" runs once per row.

Implement IRetryAnalyzer with a retry count and attach it through the test annotation or a listener to rerun flaky tests.

Store each driver in a ThreadLocal so every thread gets its own instance and tests do not interfere.

Use the Select class with selectByVisibleText, selectByValue or selectByIndex; for custom dropdowns click and choose from the list of elements.

200 OK, 201 Created, 204 No Content, 400 Bad Request, 401 Unauthorized, 403 Forbidden, 404 Not Found, 500 Internal Server Error.

A try block that automatically closes resources such as file readers or streams, preventing leaks without a finally block.

Implicit wait applies globally to element lookups. Explicit wait waits for a specific condition (WebDriverWait + ExpectedConditions). Fluent wait is an explicit wait with custom polling and ignored exceptions.

@BeforeTest runs once before all methods in a test tag of testng.xml; @BeforeMethod runs before every test method.