How to extend selenium2library in Java

[mammenj]

I would like to know if there is proper approach to extend this library to include new keyword (supported by selenium driver) without changing the original code?
Thanks for the library.

[lushiwei]

You can create your own jar with following test library.
Note: In your test case, you must import the Selenium2Library first then import ExtendedSelenium2Library.

package sample;

import java.util.List;

import javax.script.ScriptException;

import org.openqa.selenium.WebElement;

import com.github.markusbernhardt.selenium2library.Selenium2Library;
import com.github.markusbernhardt.selenium2library.keywords.BrowserManagement;
import com.github.markusbernhardt.selenium2library.keywords.Element;
import com.github.markusbernhardt.selenium2library.locators.ElementFinder;

public class ExtendedSelenium2Library {
    private Selenium2Library sel2;
    private BrowserManagement browserManagement;
    private Element element;

    public ExtendedSelenium2Library() throws ScriptException {
        sel2 = (Selenium2Library) Selenium2Library.getLibraryInstance();
        browserManagement = sel2.getBrowserManagement();
        element = sel2.getElement();
        // ...
    }

    public void myInputKeyword(String data) {
        // call Selenium2Library api
        System.out.println(browserManagement.getTitle());
        System.out.println(element.getValue("name=btnK"));

        // call selenium api
        List<WebElement> elements = ElementFinder.find(
                browserManagement.getCurrentWebDriver(), "id=lst-ib");
        elements.get(0).sendKeys(data);
    }
}

*** Settings ***
Library           Selenium2Library
Library           sample.ExtendedSelenium2Library

*** Test Cases ***
Test1
    open browser    http://www.google.com    ie
    My Input Keyword    Cheese!
    Submit Form    id=tsf
    close browser

[anarelle]

I'm trying to do this on my project but I'm getting a null WebDriver object, and not sure why.

I created this class:

public class Extended {
	private Selenium2Library sel2;
	private BrowserManagement browserManagement;
	private Element element;
	private org.openqa.selenium.WebDriver driver;  //this one is from Selenium, not Selenium2Library
	
	public Extended() throws ScriptException {
		try {
			sel2 = (Selenium2Library) Selenium2Library.getLibraryInstance();
		} catch (javax.script.ScriptException e) {
			e.printStackTrace();
		}
		browserManagement = sel2.getBrowserManagement();
                driver=browserManagement.getCurrentWebDriver();
                element = sel2.getElement();
    }
}

First weird thing is that I get this warning:

Access restriction: The type 'ScriptException' is not API (restriction on required library 'C:\Program Files\Java\jdk1.8.0_131\jre\lib\rt.jar')

Then, if I add a breakpoint right after the driver=browserManagement.getCurrentWebDriver(); line and debug, I can clearly see how this driver object is null.

Not sure if it's relevant, but since I use Maven, I haven't manually installed anything and all my project setup is in pom.xml, where I've included selenium-java from org.seleniumhq.selenium and robotframework-selenium2library-java from com.github.markusbernhardt, as well as the robotframework-maven-plugin from org.robotframework.

[lushiwei]

Have you imported the Selenium2Library before your test library in your test case? The import order is very important.

*** Settings ***
Library           Selenium2Library
Library           sample.ExtendedSelenium2Library