XPath with attributes in Selenium Java - Practice Problems & Coding Challenges

Challenge - 5 Problems

❓ locator

intermediate

Locate element by single attribute

Which XPath expression correctly locates a button element with the attribute id='submitBtn'?

A //button[id='submitBtn']

B //button[@id='submitBtn']

C //button[@id:= 'submitBtn']

D //button[@id='submitBtn']/

💡 Hint

Remember that attribute selectors in XPath use @ before the attribute name and use = for comparison.

The correct XPath uses @id='submitBtn' to select the attribute. Option B is correct.

Option B misses the @ symbol, so it is invalid.

Option B uses := which is not valid XPath syntax.

Option B has an extra slash at the end, which is invalid.

❓ assertion

intermediate

Verify element text using XPath with attribute

Given the XPath //div[@class='alert'], which assertion correctly verifies the element's text equals 'Success' in Java Selenium?

Selenium Java

WebElement alert = driver.findElement(By.xpath("//div[@class='alert']"));

A assertEquals(alert.getText(), "Success");

B assertTrue(alert.getText() == "Success");

C assertEquals("Success", alert.getText());

D assertTrue(alert.getText().equalsIgnoreCase("Success"));

💡 Hint

Use assertEquals(expected, actual) for exact string match.

Option C uses assertEquals with expected value first, which is the correct usage.

Option C uses == for string comparison, which compares references, not content.

Option C reverses expected and actual parameters, which can cause confusing error messages.

Option C uses equalsIgnoreCase, which allows case differences, not exact match.

❓ Predict Output

advanced

Output of XPath with multiple attributes

What is the output of the following Java Selenium code snippet if the page contains exactly one <input type='text' name='username' value='user1'> element?

Selenium Java

WebElement input = driver.findElement(By.xpath("//input[@type='text' and @name='username']"));
System.out.println(input.getAttribute("value"));

A user1

B null

C username

D SyntaxError

💡 Hint

The XPath selects input with type text and name username, then prints its value attribute.

The XPath selects the input element with both attributes matching.

Calling getAttribute("value") returns the string 'user1'.

Option A is wrong because the element exists and has a value attribute.

Option A is the name attribute, not value.

Option A is invalid because the code is syntactically correct.

🔧 Debug

advanced

Identify the error in XPath with attribute contains

What error will the following XPath expression cause in Selenium if used as By.xpath("//a[contains(@href, 'login')"]?

A SyntaxError due to missing closing parenthesis

B NoSuchElementException because no element matches

C InvalidSelectorException due to unbalanced quotes

D No error, works correctly

💡 Hint

Check if all parentheses and quotes are properly closed.

The XPath expression is missing a closing parenthesis for the contains function.

This causes a syntax error when Selenium tries to parse it.

Option A is incorrect because quotes are balanced.

Option A is incorrect because the error is before element search.

Option A is incorrect because the XPath is invalid.

❓ framework

expert

Best practice for locating dynamic elements with attributes

In a Selenium Java test framework, which approach is best to locate a button with a dynamic id attribute that always starts with btn_ and has a fixed data-action='submit' attribute?

A Use XPath: //button[contains(@id, 'btn_') and @data-action='submit']

B Use CSS selector: button[id*='btn_'][data-action='submit']

C Use CSS selector: button[id^='btn_'][data-action='submit']

D Use XPath: //button[starts-with(@id, 'btn_') and @data-action='submit']

💡 Hint

Consider which selector matches the start of the id attribute exactly and the fixed attribute.

Option D uses XPath starts-with() which matches elements whose id starts exactly with 'btn_'.

Option D uses CSS ^= which also matches start, but CSS selectors may not be as flexible for complex attribute logic in some frameworks.

Option D uses contains() which matches anywhere in the id, not just start.

Option D uses CSS *= which matches anywhere in the id, not just start.

XPath with starts-with() is preferred for precise matching in this case.