Radio button handling in Selenium Java - Test Execution Trace

Test Overview

This test opens a web page with radio buttons, selects a specific radio button, and verifies that it is selected.

Test Code - JUnit with Selenium WebDriver

Selenium Java

import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertTrue;

public class RadioButtonTest {
    WebDriver driver;

    @BeforeEach
    public void setUp() {
        driver = new ChromeDriver();
        driver.get("https://example.com/radio-buttons");
    }

    @Test
    public void testSelectRadioButton() {
        WebElement radioButton = driver.findElement(By.id("option2"));
        radioButton.click();
        assertTrue(radioButton.isSelected(), "Radio button option2 should be selected");
    }

    @AfterEach
    public void tearDown() {
        driver.quit();
    }
}

Execution Trace - 6 Steps

Step	Action	System State	Assertion	Result
1	Test starts and Chrome browser opens	Chrome browser window is open, ready to navigate	—	PASS
2	Navigates to https://example.com/radio-buttons	Page with radio buttons is loaded and visible	Page title or URL confirms correct page loaded	PASS
3	Finds radio button element with id 'option2'	Radio button with id 'option2' is located in the DOM	Element is present and interactable	PASS
4	Clicks on the radio button 'option2'	Radio button 'option2' is selected visually	—	PASS
5	Checks if radio button 'option2' is selected	Radio button 'option2' state is selected	assertTrue(radioButton.isSelected()) verifies selection	PASS
6	Test ends and browser closes	Browser window is closed	—	PASS

Failure Scenario

Failing Condition: Radio button with id 'option2' is not found or not clickable

Execution Trace Quiz - 3 Questions

What does the test verify after clicking the radio button?

A That the radio button is disabled

B That the radio button is visible

C That the radio button is selected

D That the radio button is unchecked

Key Result

Always verify that the element is present and interactable before clicking, and assert the expected state after interaction to confirm correct behavior.

Practice

1. What does the isSelected() method do when used on a radio button element in Selenium?

easy

A. Checks if the radio button is currently selected

B. Clicks the radio button to select it

C. Returns the text label of the radio button

D. Finds the radio button element on the page

Solution

1. Step 1: Understand the purpose of isSelected()

   This method checks the current state of a radio button or checkbox to see if it is selected or not.

2. Step 2: Differentiate from other methods

   click() selects the radio button, but isSelected() only checks selection status without changing it.

3. Final Answer:

   Checks if the radio button is currently selected -> Option A

4. Quick Check:

   isSelected() = Check selection status [OK]

Hint: Remember: isSelected() checks state, click() changes state [OK]

Common Mistakes:

• Confusing isSelected() with click()
• Expecting isSelected() to select the button
• Using getText() to check selection

2. Which of the following is the correct way to select a radio button using Selenium WebDriver in Java?

easy

A. driver.findElement(By.id("option1")).isSelected();

B. driver.findElement(By.id("option1")).sendKeys("select");

C. driver.findElement(By.id("option1")).getText();

D. driver.findElement(By.id("option1")).click();

Solution

1. Step 1: Identify the method to select a radio button

   To select a radio button, you use the click() method on the WebElement.

2. Step 2: Check other options for correctness

   isSelected() only checks selection, getText() returns label text, and sendKeys() is not used for radio buttons.

3. Final Answer:

   driver.findElement(By.id("option1")).click(); -> Option D

4. Quick Check:

   Use click() to select radio button [OK]

Hint: Use click() to select radio buttons, not isSelected() [OK]

Common Mistakes:

• Using isSelected() to select instead of check
• Trying to sendKeys() to radio buttons
• Using getText() expecting to select

3. Consider the following code snippet:

WebElement rb1 = driver.findElement(By.id("radio1"));
WebElement rb2 = driver.findElement(By.id("radio2"));
rb1.click();
boolean selected1 = rb1.isSelected();
boolean selected2 = rb2.isSelected();

What will be the values of selected1 and selected2 after execution?

medium

A. selected1 = true, selected2 = false

B. selected1 = false, selected2 = true

C. selected1 = true, selected2 = true

D. selected1 = false, selected2 = false

Solution

1. Step 1: Understand radio button behavior on click

   Clicking rb1 selects it and deselects other radio buttons in the same group, so rb1.isSelected() returns true and rb2.isSelected() returns false.

2. Step 2: Confirm the boolean values

   Therefore, selected1 is true and selected2 is false after clicking rb1.

3. Final Answer:

   selected1 = true, selected2 = false -> Option A

4. Quick Check:

   Click selects one, others deselect = true/false [OK]

Hint: Only one radio button in group is selected at a time [OK]

Common Mistakes:

• Assuming both radio buttons can be selected simultaneously
• Confusing isSelected() return values
• Not understanding radio button group behavior

4. You have the following code to select a radio button:

WebElement radio = driver.findElement(By.name("gender"));
radio.click();

But the test fails because the wrong radio button is selected. What is the likely problem?

medium

A. The findElement method is incorrect; should use findElements

B. The click() method does not work on radio buttons

C. Using By.name returns multiple elements; need to specify which one

D. Radio buttons cannot be selected by Selenium

Solution

1. Step 1: Analyze locator usage

   Using By.name("gender") returns the first matching element, but if multiple radio buttons share the same name, this may select the wrong one.

2. Step 2: Fix by specifying correct element

   To select the intended radio button, use a more specific locator or find all elements and choose the correct one.

3. Final Answer:

   Using By.name returns multiple elements; need to specify which one -> Option C

4. Quick Check:

   Locator must uniquely identify radio button [OK]

Hint: Use unique locators or filter elements to select correct radio button [OK]

Common Mistakes:

• Assuming findElement returns all matching elements
• Thinking click() doesn't work on radio buttons
• Ignoring that multiple radios share the same name attribute

5. You want to write a test to verify that selecting one radio button deselects the others in the same group. Which approach is best to implement this in Selenium Java?

hard

A. Click all radio buttons one by one and assert they are all selected

B. Click one radio button, then assert it is selected and all others are not selected

C. Use sendKeys() to select radio buttons and check their text

D. Check only the first radio button's selection status without clicking

Solution

1. Step 1: Understand radio button group behavior

   Only one radio button in a group can be selected at a time; selecting one deselects others.

2. Step 2: Write assertions to verify this

   Click one radio button, then check that it is selected and all others are not selected to confirm correct behavior.

3. Final Answer:

   Click one radio button, then assert it is selected and all others are not selected -> Option B

4. Quick Check:

   Test selection exclusivity by asserting one selected, others not [OK]

Hint: Assert one selected and others deselected after click [OK]

Common Mistakes:

• Expecting multiple radio buttons to be selected simultaneously
• Not asserting other buttons are deselected
• Using sendKeys() instead of click()