findElement by tagName in Selenium Java - Practice Problems & Coding Challenges

Challenge - 5 Problems

❓ Predict Output

intermediate

Output of findElement by tagName usage

What will be the output of the following Selenium Java code snippet when executed on a webpage with multiple

Selenium Java

WebElement button = driver.findElement(By.tagName("button"));
System.out.println(button.getText());

A Submit

B NoSuchElementException

C All button texts concatenated

D null

💡 Hint

findElement returns the first matching element found in the DOM.

The findElement method with By.tagName("button") returns the first

❓ assertion

intermediate

Correct assertion for findElement by tagName

Which assertion correctly verifies that the first

element on the page contains the text 'Welcome'?

Selenium Java

WebElement header = driver.findElement(By.tagName("h1"));

A assertFalse(header.getText().isEmpty());

B assertTrue(header.getText().contains("Welcome"));

C assertEquals("Welcome", header.getText());

D assertNotNull(header.getText());

💡 Hint

Use exact text match for verification.

assertEquals("Welcome", header.getText()) checks that the header text exactly matches 'Welcome', which is the correct way to verify the text content.

❓ locator

advanced

Best locator for unique

element

You want to locate the unique

element on a webpage using Selenium Java. Which locator is the best choice?

A By.tagName("footer")

B By.id("footer")

C By.className("footer")

D By.xpath("//footer")

💡 Hint

Unique IDs are the most reliable locators.

Using By.id("footer") is best if the footer element has a unique id attribute. It is faster and more reliable than tagName or xpath.

🔧 Debug

advanced

Debugging NoSuchElementException with findElement by tagName

Given the code snippet below, what is the most likely cause of a NoSuchElementException?

Selenium Java

WebElement input = driver.findElement(By.tagName("input"));
input.sendKeys("test");

A The input element is inside an iframe not switched to.

B No <input> element is present in the current page DOM.

C The input element is present but disabled.

D The input element has no 'name' attribute.

💡 Hint

Check if the element is inside frames or iframes.

If the input element is inside an iframe, Selenium cannot find it until driver switches to that iframe. This causes NoSuchElementException.

❓ framework

expert

TestNG test method using findElement by tagName

Which TestNG test method correctly finds the first

element and asserts its text equals 'Hello World'?

A

@Test
public void testParagraphText() {
  WebElement para = driver.findElement(By.tagName("p"));
  Assert.assertFalse(para.getText().isEmpty());
}

B

@Test
public void testParagraphText() {
  WebElement para = driver.findElement(By.tagName("p"));
  Assert.assertTrue(para.getText().equalsIgnoreCase("Hello World"));
}

C

@Test
public void testParagraphText() {
  WebElement para = driver.findElement(By.tagName("p"));
  Assert.assertNotNull(para.getText());
}

D

@Test
public void testParagraphText() {
  WebElement para = driver.findElement(By.tagName("p"));
  Assert.assertEquals(para.getText(), "Hello World");
}

💡 Hint

Use assertEquals for exact text match in TestNG.

Option D uses Assert.assertEquals to check the paragraph text exactly matches 'Hello World', which is the correct assertion for this test.