28-Nov-2016
Introduction To Selenium 3.0: An Upgradation Using GeckoDriver
By Suraj
28-Nov-2016
By Suraj
Selenium 2.0 was released in 2011 and introduced the new WebDriver APIs that encouraged everyone to start moving to them. Selenium 3.0 is a simple drop-in upgrade version if you're currently using the WebDriver APIs. None of the WebDriver APIs has been changed, and the code is essentially the same as the last 2.x release. Even if you're using Selenium Grid, the same applies: in most cases, you can just drop in the new JAR, and you're done.
At the same time as the Selenium project is shipping Selenium 3.0, the internals of Firefox is being changed by Mozilla to make it more stable and secure which also makes the community-provided Firefox Driver no longer work. If you use Firefox for your testing, you'll need to use the geckodriver, which is an executable similar to the chrome driver and MS's edgedriver. Even if you're using Selenium 2, you'll need to start using geckodriver— the change is in the browser, not Selenium.
Also Read: Introduction To API's & How To Automate API's Testing With Selenium Webdriver
It is a proxy for using W3C WebDriver-compatible clients to interrelate with Gecko-based browsers. Geckodriver provides HTTP API defined by the WebDriver protocol to connect with Gecko browsers, such as Firefox (Version after 47).
Selenium 3 turns on Marionette (the next generation of Firefox Driver) by default. Selenium 3 expects us to set a path to the driver executable by the webdriver.gecko.driver, even if you are working with older versions of the Firefox browser.
Note: If we are using the Selenium version below 2.53, we don't need a gecko additional driver.
If we are not doing so, it will throw exception "java. lang.IllegalStateException: The webdriver.gecko.driver system property must set the path to the driver executable;"
The other significant changes in Selenium 3.x are listed below:
* The original RC APIs are only available via the leg-rc package.
* Ensure that the leg-rc package is on the classpath, to run exported IDE tests.
* Minimum java version is now 8+.
* Official support for IE requires version 9 or above.
* Unused command line arguments are now no longer described.
* New HTML-table runner supported by WebDriver.
Now let us see the example to launch firefox browser with Selenium 3 using gecko driver:
System.setProperty("webdriver.gecko.driver", "path of geckodriver.exe");
WebDriver driver = new FirefoxDriver();
package com.testing;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.testng.annotations.Test;
public class SeleniumWithGeckodriver {
public WebDriver driver;
@Test
public void browserOpenUsingGeckodriver() {
System.setProperty("webdriver.gecko.driver", "path of geckodriver.exe");
driver = new FirefoxDriver();
}
@Test
public void openUrl() {
driver.navigate().to("http://www.google.com");
driver.manage().window().maximize();
}
@Test
public void closeDriver() {
driver.close();
}
}
To run tests on remote machines, WebDriver has to use the case of the DesiredCapabilities and RemoteWebDriver in order to specify a version, platform and browser name to implement tests.
Usually, to run tests on our local machine, we will just specify as WebDriver driver = new FirefoxDriver(); to run on Firefox browser.
We need to use a remote webdriver to perform tests on the remote machines. The sample code given below is to perform your tests on the remote machine with a Firefox gecko driver.
System.setProperty("webdriver.gecko.driver", "path of geckodriver.exe");
DesiredCapabilities capabilities=DesiredCapabilities.firefox();
capabilities.setCapability("marionette", true);
WebDriver driver = new FirefoxDriver(capabilities);
The above code is verified Firefox 47+ version and selenium-server-standalone-3.0.0-beta2 version.
With the latest versions of Firefox, the most common issue people are facing is org.openqa.selenium.firefox.NotConnectedException: Unable to connect to host 127.0.0.1 on port 7055 after 45000 ms.
Users can use Marionette (geckodriver), who are facing the above problem. Please do comment on your observation/issue with the versions (Geckodriver, Firefox and Selenium) that you have used.
UPDATE:
Users should be able to download Gecko Driver version 0.11 as it will resolve the issues related to windows32 bit.
Suraj
Suraj is an ISTQB certified Automation Test Engineer at BugRaptors. He is responsible for Automation testing on Web and Mobile application and API Automation. He is also aware about RPA Automation using UiPath Automation Tool. He has working knowledge in Selenium Web driver(Web application), Appium(Android and iOS), API automation (Rest-Assured).
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