JP Morgan Chase Automation Testing Interview Questions & Answers

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.

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

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

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

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

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

A helper that initialises @FindBy elements lazily using initElements; some teams skip it in favour of plain By locators.

Locators such as above, below, toLeftOf and near that find elements by their position relative to another element.

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

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

Encapsulation: private locators with public page methods. Inheritance: pages extend a BasePage. Polymorphism: the WebDriver interface for different browsers. Abstraction: utility layers hiding Selenium details.

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

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

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

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

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

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

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

A special method that initialises an object. It can be overloaded with different parameters, and testers use it to pass the WebDriver into page classes.

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

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.

Automate stable, repetitive, high-risk and data-heavy flows (smoke, regression). Skip one-time tests, frequently changing UI and checks needing human judgement. Compare run frequency × manual time with build and maintenance cost.

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.

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.

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.

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.

It manages dependencies through pom.xml, builds the project, runs tests with Surefire and standardises structure across teams.

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

Use then().time(lessThan(2000L)) and then().header("Content-Type", containsString("json")) along with body assertions.

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

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

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

public (everywhere), protected (package and subclasses), default (package) and private (same class), used to control visibility of test utilities.

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.

An API client. Add tests in JavaScript, use environments and collections, and run them with Newman in a CI pipeline.

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

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

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

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.

getText returns visible inner text; getAttribute returns an HTML attribute or property such as value, href or class.

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

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.

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

String r = new StringBuilder(s).reverse().toString(); // or loop from the last index and append each character

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

Tag tests with groups = {"smoke","regression"} and include or exclude them in testng.xml to run chosen sets.

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

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

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.

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

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.

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

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.

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.

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

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.

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

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

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.

Overloading: same method name, different parameters, in the same class (compile time). Overriding: a subclass redefines a parent method with the same signature (runtime polymorphism). WebDriver driver = new ChromeDriver() is runtime polymorphism.

final makes a variable, method or class unchangeable; finally is a block that always runs after try-catch; finalize is a deprecated method called before garbage collection.

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.

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

Use mocks or stubs such as WireMock to simulate the dependency and test your service in isolation.

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

Relative locators, improved Grid, W3C compliance, new window or tab creation, Chrome DevTools Protocol access and element-level screenshots.

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