First Selenium Java test

Introduction

We write a Selenium Java test to check if a website works as expected automatically. This saves time and avoids mistakes from checking by hand.

You want to check if a website loads correctly.

You want to test if a button on a page works.

You want to make sure a page title is correct.

You want to repeat the same test many times without doing it yourself.

Syntax

Selenium Java

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;

public class FirstTest {
    public static void main(String[] args) {
        WebDriver driver = new ChromeDriver();
        driver.get("https://example.com");
        String title = driver.getTitle();
        if (title.equals("Example Domain")) {
            System.out.println("Test Passed");
        } else {
            System.out.println("Test Failed");
        }
        driver.quit();
    }
}

Use WebDriver to control the browser.

driver.get() opens the website URL.

Examples

This opens Chrome browser and goes to example.com.

Selenium Java

WebDriver driver = new ChromeDriver();
driver.get("https://example.com");

This gets the page title and prints it.

Selenium Java

String title = driver.getTitle();
System.out.println(title);

This checks if the title is exactly "Example Domain" and prints the test result.

Selenium Java

if (title.equals("Example Domain")) {
    System.out.println("Test Passed");
} else {
    System.out.println("Test Failed");
}

Sample Program

This test opens Chrome, goes to example.com, checks the page title, prints if the test passed or failed, then closes the browser.

Selenium Java

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;

public class FirstTest {
    public static void main(String[] args) {
        // Set the path to chromedriver executable if needed
        // System.setProperty("webdriver.chrome.driver", "/path/to/chromedriver");

        WebDriver driver = new ChromeDriver();
        driver.get("https://example.com");

        String title = driver.getTitle();

        if (title.equals("Example Domain")) {
            System.out.println("Test Passed");
        } else {
            System.out.println("Test Failed");
        }

        driver.quit();
    }
}

Important Notes

Make sure you have the ChromeDriver installed and its path set correctly.

Close the browser with driver.quit() to free resources.

Use exact text in equals() to avoid false failures.

Summary

Selenium Java tests automate browser actions.

Open a browser, visit a page, check something, then close the browser.

Print results to see if the test passed or failed.

Practice

1. What is the main purpose of a Selenium Java test?

easy

A. To write Java programs unrelated to browsers

B. To automate browser actions like opening a page and checking content

C. To manually test software without code

D. To design user interfaces

Solution

1. Step 1: Understand Selenium's role

   Selenium is used to automate browser actions such as opening pages and clicking buttons.

2. Step 2: Identify the test goal

   The main goal of a Selenium Java test is to automate browser tasks and verify web page behavior.

3. Final Answer:

   To automate browser actions like opening a page and checking content -> Option B

4. Quick Check:

   Selenium test = automate browser [OK]

Hint: Selenium automates browsers, not manual or UI design tasks [OK]

Common Mistakes:

• Confusing Selenium with manual testing
• Thinking Selenium is for UI design
• Assuming Selenium runs non-browser Java code

2. Which of the following is the correct way to start a Chrome browser in Selenium Java?

easy

A. WebDriver driver = new ChromeDriver();

B. ChromeDriver driver = WebDriver();

C. driver = new WebDriver.Chrome();

D. WebDriver driver = ChromeDriver();

Solution

1. Step 1: Recall Selenium WebDriver syntax

   The correct way is to declare WebDriver interface and instantiate ChromeDriver class.

2. Step 2: Check each option's syntax

   WebDriver driver = new ChromeDriver(); uses correct Java syntax: WebDriver driver = new ChromeDriver(); others have syntax errors or wrong order.

3. Final Answer:

   WebDriver driver = new ChromeDriver(); -> Option A

4. Quick Check:

   Use interface = new implementation() [OK]

Hint: Use WebDriver driver = new ChromeDriver(); to start Chrome [OK]

Common Mistakes:

• Missing 'new' keyword
• Wrong constructor call syntax
• Assigning without type declaration

3. What will be the output of this Selenium Java code snippet?

WebDriver driver = new ChromeDriver();
driver.get("https://example.com");
String title = driver.getTitle();
System.out.println(title);
driver.quit();

Assuming the page title is "Example Domain".

medium

A. Example Domain

B. https://example.com

C. null

D. No output, code throws error

Solution

1. Step 1: Understand driver.getTitle()

   driver.getTitle() returns the title of the current page, which is "Example Domain" here.

2. Step 2: Check the print statement

   System.out.println(title) prints the page title to the console.

3. Final Answer:

   Example Domain -> Option A

4. Quick Check:

   getTitle() prints page title [OK]

Hint: getTitle() returns page title string [OK]

Common Mistakes:

• Confusing URL with title
• Expecting no output
• Assuming getTitle() returns null

4. Identify the error in this Selenium Java code snippet:

import org.openqa.selenium.By;
WebDriver driver = new ChromeDriver();
driver.get("https://example.com");
WebElement button = driver.findElement(By.id("submit"));
button.click();
driver.close();

medium

A. Missing import for By class

B. findElement should use By.name instead of By.id

C. driver.close() should be driver.quit() to close browser fully

D. button.click() is not valid for WebElement

Solution

1. Step 1: Understand driver.close() vs driver.quit()

   driver.close() closes current tab, driver.quit() closes entire browser session.

2. Step 2: Check best practice for test cleanup

   To fully close browser and end session, driver.quit() is preferred after test.

3. Final Answer:

   driver.close() should be driver.quit() to close browser fully -> Option C

4. Quick Check:

   Use quit() to close browser fully [OK]

Hint: Use driver.quit() to close browser fully after test [OK]

Common Mistakes:

• Using driver.close() only closes one tab
• Confusing By.id and By.name without context
• Assuming button.click() is invalid

5. You want to write a Selenium Java test that opens a browser, navigates to "https://example.com", verifies the page title is "Example Domain", and then closes the browser. Which code snippet correctly performs this test with assertion?

hard

A. WebDriver driver = new ChromeDriver();
driver.get("https://example.com");
assert driver.getTitle().equals("Example Domain");
driver.quit();

B. WebDriver driver = new ChromeDriver();
driver.get("https://example.com");
if(driver.getTitle() == "Example Domain") {
System.out.println("Title matches");
}
driver.close();

C. WebDriver driver = new ChromeDriver();
driver.get("https://example.com");
assert driver.getTitle() == "Example Domain";
driver.quit();

D. WebDriver driver = new ChromeDriver();
driver.get("https://example.com");
assertEquals("Example Domain", driver.getTitle());
driver.quit();

Solution

1. Step 1: Check assertion method correctness

   assertEquals(expected, actual) is the correct JUnit assertion method to compare strings.

2. Step 2: Verify browser close method

   driver.quit() properly closes the browser after test.

3. Step 3: Identify errors in other options

   WebDriver driver = new ChromeDriver(); driver.get("https://example.com"); assert driver.getTitle().equals("Example Domain"); driver.quit(); uses plain assert with equals() but is less clear; WebDriver driver = new ChromeDriver(); driver.get("https://example.com"); if(driver.getTitle() == "Example Domain") { System.out.println("Title matches"); } driver.close(); uses == for string comparison (wrong); WebDriver driver = new ChromeDriver(); driver.get("https://example.com"); assert driver.getTitle() == "Example Domain"; driver.quit(); uses == in assert (wrong).

4. Final Answer:

   assertEquals("Example Domain", driver.getTitle()); with driver.quit() -> Option D

5. Quick Check:

   Use assertEquals for string check, quit() to close browser [OK]

Hint: Use assertEquals(expected, actual) and driver.quit() [OK]

Common Mistakes:

• Using == to compare strings
• Using driver.close() instead of quit()
• Missing proper assertion method