Selenium Testing Framework Selenium Locators & Element Identification 1 — Questions and Answers
Question 1: Which locator strategy is generally considered the most reliable and fastest for finding elements in Selenium WebDriver?
- XPath
- CSS Selector
- ID (Correct answer)
- Class Name
Correct answer: ID
ID is the most reliable locator because IDs should be unique within an HTML page, making element identification fast and unambiguous.
Question 2: Which XPath expression correctly selects all input elements with a type attribute equal to 'text'?
- //input[@type='text'] (Correct answer)
- //input[type='text']
- input[@type='text']
- /input[@type='text']
Correct answer: //input[@type='text']
The correct XPath syntax uses double-slash to search anywhere in the document and square brackets with @ to specify attribute conditions.
Question 3: What is the key behavioral difference between findElement() and findElements() in Selenium WebDriver?
- findElement() returns a list; findElements() returns a single element
- findElement() throws NoSuchElementException if not found; findElements() returns an empty list (Correct answer)
- findElement() is always faster than findElements()
- findElements() only works with XPath locators
Correct answer: findElement() throws NoSuchElementException if not found; findElements() returns an empty list
findElement() throws NoSuchElementException when no match is found, while findElements() safely returns an empty list, allowing null checks without exception handling.
Question 4: Which CSS selector correctly targets an element with the ID 'login-btn'?
- .login-btn
- #login-btn (Correct answer)
- *login-btn
- @login-btn
Correct answer: #login-btn
In CSS selectors, the # symbol is used to target elements by their ID attribute, making #login-btn the correct syntax.
Question 5: What does the '//' at the beginning of an XPath expression signify?
- Select only the root element
- Select elements anywhere in the document (Correct answer)
- Select only direct children of the root
- Select elements that have no children
Correct answer: Select elements anywhere in the document
The double-slash '//' is a shorthand for the 'descendant-or-self' axis, meaning it searches for matching elements anywhere in the entire document.
Question 6: Which type of XPath is considered LEAST reliable for test automation due to fragility?
- XPath using ID attribute
- XPath using name attribute
- Absolute XPath from the root (Correct answer)
- XPath using contains()
Correct answer: Absolute XPath from the root
Absolute XPath (starting with a single /) is fragile because any structural change in the DOM will break the locator, making it unsuitable for stable automation.
Question 7: Which Selenium method is used to locate an anchor element by a portion of its visible link text?
- By.linkText()
- By.partialLinkText() (Correct answer)
- By.text()
- By.link()
Correct answer: By.partialLinkText()
By.partialLinkText() matches anchor elements whose visible text contains the specified substring, unlike By.linkText() which requires an exact match.
Selenium Testing Framework Selenium Locators & Element Identification 1
Which locator strategy is generally considered the most reliable and fastest for finding elements in Selenium WebDriver?