Lets write our first Selenium test with the help of Code Modular

𝗪𝗵𝗮𝘁 𝗶𝘀 𝗦𝗲𝗹𝗲𝗻𝗶𝘂𝗺?

Selenium is a set of tools and libraries that automates web browser actions. If you go to the selenium official site(www.selenium.dev) you will find it says “selenium automates browsers. That’s it.”

Selenium logo

Selenium is free and currently is the most widely used and most popular open-source solution for test automation of web applications.

Selenium supports all the major browsers like Firefox, Chrome, Internet Explorer, Safari and many more. And all the major Operating Systems are also supported.
If you go to the official site you will find that selenium supported by many languages including Java, C#, JavaScript, Perl, PHP, Python, Ruby and so on.

So why not learning it!!!

ok, Let's try to write our first selenium script.

𝗜𝗻𝘀𝘁𝗮𝗹𝗹𝗮𝘁𝗶𝗼𝗻 𝘀𝘁𝗲𝗽𝘀

𝟭.𝗙𝗶𝗿𝘀𝘁 𝗶𝗻𝘀𝘁𝗮𝗹𝗹 𝗝𝗗𝗞 𝘁𝗼 𝘆𝗼𝘂𝗿 𝗰𝗼𝗺𝗽𝘂𝘁𝗲𝗿

https://www.oracle.com/java/technologies/javase-downloads.html

After installation is finished you can use the following command to check whether Java JDK is installed successfully in your system and installed version.

In Windows/Linux, go to Terminal
Enter command — “java -version”

𝟮.𝗗𝗼𝘄𝗻𝗹𝗼𝗮𝗱 𝗮𝗻𝗱 𝘀𝘁𝗮𝗿𝘁 𝗘𝗰𝗹𝗶𝗽𝘀𝗲

Download the latest version from this link
http://www.eclipse.org/downloads

𝟯.𝗖𝗿𝗲𝗮𝘁𝗲 𝗮 𝗝𝗮𝘃𝗮 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝗶𝗻 𝗘𝗰𝗹𝗶𝗽𝘀𝗲

Right-click on the package Explorer,
New →Java Project
And let's name it as “SeleniumTest”

𝟰.𝗔𝗱𝗱 𝘀𝗲𝗹𝗲𝗻𝗶𝘂𝗺 𝗝𝗮𝗿𝘀

Go to Selenium official site and download the Selenium Client & WebDriver Language Bindings.
For this test, let's choose the Java language.

www.selenium.dev/downloads

www.selenium.dev/downloads

After the download has finished unzip the zip file and copy to a location you prefer.

Again go to Eclipse and create a folder.

Do a right-click →New →Folder
And name it as “lib”
In this folder, let's keep all our Jars.

Now go to the folder that you unzipped and copy all the jar files and paste it inside the lib folder.

Once it has copied select all those jars and add them to the build path.

Build →Build Path

As soon as you do this you will see the jars you have selected is added to the Referenced Libraries now.

𝟱.𝗗𝗼𝘄𝗻𝗹𝗼𝗮𝗱 𝗴𝗲𝗰𝗸𝗼𝗱𝗿𝗶𝘃𝗲𝗿 𝗮𝗻𝗱 𝗰𝗵𝗿𝗼𝗺𝗲𝗱𝗿𝗶𝘃𝗲𝗿

To interact with Firefox and chrome we need geckodriver and chromedriver respectively. The purpose of these drivers is to launch each browser. Without that, it is not possible to execute Selenium test scripts in browsers as well as automate any web application.

So let's download each of them.
https://chromedriver.chromium.org/downloads
https://github.com/mozilla/geckodriver/releases

Once it's finished go to Eclipse and create another folder by right-clicking on the project and name it as “WebDriver”

Go to Downloaded web drivers and copy-paste them into this folder.

To set the system properties to these drivers here are the code formats.

System.setProperty("webdriver.gecko.driver", "location of gecko driver exe");
System.setProperty("webdriver.gecko.driver", "location of chrome driver exe");

To copy the location of each driver right click on the driver and go to properties. you will see the location. You can give either relative path or the absolute path.

𝟲.𝗪𝗿𝗶𝘁𝗲 𝗮 𝗽𝗿𝗼𝗴𝗿𝗮𝗺 𝘁𝗼 𝗼𝗽𝗲𝗻 𝗕𝗿𝗼𝘄𝘀𝗲𝗿

Let's write a simple program to open the browser in both chrome and Firefox.

First, go to your package, do a right-click and create another package inside this package and name it as “Test”.

In the Test package again do a right-click and create a class, name it as “SeleniumTest1”.

Copy the following code into the class.

SeleniumTest1.java

To import all missing packages press: CTRL + SHIFT + O

To switch between two browsers replace the browser string variable with one of them. “chrome” or “firefox”.

public static void setBrowser() {

        browser = "firefox";

Now here you see we have used a software design technique that emphasizes separating the functionality of a program into independent, interchangeable modules, such that each contains everything necessary to execute only one aspect of the desired functionality.

        setBrowser();
        setBrowserConfig();
        runTest();

We have divided the code into three simple functions and call each one when the test runs. As a best practice, it's recommended to use this method because it allows for easier management and we need to maintain the efficiency of the code. Now you can see our code is so much cleaner.

So here we created our simple selenium test to open a web browser and applied Modular programming software design technique to build the code.

For your reference find my GitHub profile here

mwickramanayaka/CodeModular

𝑻𝑯𝑰𝑵𝑲 𝑸𝑼𝑨𝑳𝑰𝑻𝒀!