Here you can see how to make Selenium Standalone Server use the chromedriver. My question is, which drivers are include out the box in the Selenium Standalone Server jar?
Should I use the browsers drivers instead of the drivers included in the Selenium Standalone Server jar?
I know that with Firefox the Selenium Team recommend use the Firefox driver, but what about the others browsers?
The post you have pointed out as how to make Selenium Standalone Server use the chromedriver is a demonstration of using Selenium Standalone Server in Grid configuration i.e. through setting up Selenium Grid Hub and Selenium Grid Node.
Selenium 3.x releases doesn't supports any of the drivers out the box in the Selenium Standalone Server jar.
The main reason behind Selenium Team recommending to use the geckodriver (Firefox) and Mozilla Firefox Browser because both geckodriver and Mozilla Firefox Browser follows the W3C Specifications.
Related
For Selenium, we define the chrome executable path in System.setProperty. When a URL is passed in driver.get and Chrome invokes:
1 - How does chrome executable know where Chrome browser is actually installed?
2 - What would happen if I do not have Chrome browser?
Responses appreciated!!
As per the Requirements of ChromeDriver:
The ChromeDriver consists of three separate pieces. There is the browser itself i.e. chrome, the language bindings provided by the Selenium project i.e. the driver and an executable downloaded from the Chromium project which acts as a bridge between chrome and the driver. This executable is called the chromedriver, we generally refer to it as the server to reduce confusion.
The server expects you to have Chrome installed in the default location for each system as per the image below:
1For Linux systems, the ChromeDriver expects /usr/bin/google-chrome to be a symlink to the actual Chrome binary. In case you are using a Chrome executable in a non-standard location you have to override the Chrome binary location. as follows:
Google chrome doesn't have built-in driver server, so you need to install ChromeDriver so that the selenium code communicates with the chrome browser.This ChromeDriver implements webdriver's wire protocol (client being system on which webdriver API is used & server being browser acting as/containing stand alone server).
For Internet explorer one needs to install InternetExplorerDriver as stand alone server. For Selenium 3.0 & above to work with firefox, Geckodrver has to be installed.
I was wandering since there is many chrome drivers available on the nuGet Packages Manager, which one is fitting the best with Selenium tests, does it make any difference at all?
WebDriver ChromeDriver
WebDriverChromeDriver
Selenium.WebDriver.ChromeDriver
etc...
I'm using for my >30K lines of code (and 6 different web-sites) UI test project the
WebDriver ChromeDriver
with version 26.14.313457.1, it's a separate executable that WebDriver uses to control the Chrome browser. Again it requires Chromium/Google Chrome to be installed.
I know , behat framework uses Selenium stand alone server to run the files which is not very effective. Has it been updated to use selenium webdriver ??...
"uses Selenium stand alone server to run the files which is not very effective. Has it been updated to use selenium webdriver"
Using the stand-alone server is irrelevant. The stand-alone server has both Selenium RC and Selenium WebDriver built in. It all depends on which classes you are extending from.
So to your question:
Has it been updated to use selenium webdriver?
Behat is just a DSL of sorts... If you are using Behat with Selenium, then it depends on what you are extending your classes from.
Behat itself has nothing to do with selenium.
Web automation is implemented in Mink, which is used with Behat via the MinkExtension.
All the drivers supported by Mink out of the box are listen in their docs:
GoutteDriver
BrowserKitDriver
Selenium2Driver
ZombieDriver
SahiDriver
SeleniumDriver
As you probably noticed there are two selenium drivers - SeleniumDriver supports the old SeleniumRC protocol - while Selenium2Driver supports the webdriver.
I have small doubt.
Why do we need IEdriver and Chrome Driver running selenium scrits in IE and Chrome but we do not need a firefox driver to run the script?
Is there any reason for the same?
This is because of the Native Browser approach used in WebDriver.
Each and every browser uses different JS Engine.
All drivers [Chrome Driver, IE driver, etc.,] are built based on the special JS Engine used by each browser.
Selenium offers inbuilt driver for Firefox but not for other browsers. [Not sure it may happen in future, since TestNG and JUnit library files are a part of Selenium-standalone-server right now]
Straight from a google search for FirefoxDriver, the official documentation states:
Firefox driver is included in the selenium-server-stanalone.jar available in the downloads. The driver comes in the form of an xpi (firefox extension) which is added to the firefox profile when you start a new instance of FirefoxDriver.
External drivers are the preferred process by the Selenium developers. They allow the driver versioning to be tied more closely to the browser than to Selenium, and they can be supported by the browser authors (e.g., ChromeDriver, OperaDriver). There is a long-standing plan to replace FirefoxDriver with a Mozilla-supported driver based on Mozilla's "Marionette" architecture.
Firefox driver is already included in the selenium-server-standalone.jar package.
Can anyone please explain the difference between "selenium server" and "selenium server standalone" jars and use of both.
Which one to prefer?
When to use which one?
As per Selenium Documents,
You may, or may not, need the Selenium Server, depending on how you intend to use Selenium-WebDriver. If you will be only using the WebDriver API you do not need the Selenium-Server. If your browser and tests will all run on the same machine, and your tests only use the WebDriver API, then you do not need to run the Selenium-Server; WebDriver will run the browser directly.
There are some reasons though to use the Selenium-Server with Selenium-WebDriver.
You are using Selenium-Grid to distribute your tests over multiple machines or virtual machines (VMs).
You want to connect to a remote machine that has a particular browser version that is not on your current machine.
You are not using the Java bindings (i.e. Python, C#, or Ruby) and would like to use HtmlUnit Driver.
Here is a photo from the old version of selenium website:
Selenium Server is formerly known as selenium RC server.
I can not say exact selenium server standalone definition, but i can say based on the version
In the selenium server standalone server is different
I believe that "selenium server" jar IS "selenium server standalone" jar. If you look at http://www.seleniumhq.org/download/ - there is not such thing as "selenium server".
Grid and RC servers are in the same jar file. RC ("Remote Control") is deprecated in Selenium 2 and emulated in Selenium 3.
Lazily, "selenium server standalone" can be called just "selenium server", because that's what it is: proxy to selenium grid or whatever remote browsers you want to automate. "standalone" is HTTP server.
http://www.protractortest.org/#/infrastructure hints at difference in terminology: it is "standalone" when running locally, and "server" when running (standalone jar) on remote grid (which is a http server assigning jobs to multiple selenium servers, each running "standalone" jars).
If one enters via the Getting Started page at the Selenium Wiki, there is a download link to selenium-release.storage.googleapis.com. E.g. the 3.8 release directory features:
[DIR] selenium-server-3.8.1.zip 2017-12-01 19:21:38 20.58MB
[DIR] selenium-server-standalone-3.8.1.jar 2017-12-01 19:17:06 21.79MB
So there are indeed two versions. It seems a matter of packaging:
The selenium-server-3.8.1.zip contains a file selenium-3.8.1-nodeps.jar and the dependent classes as .jar files ("jars in zip"):
..
---x------ 63504 1-Feb-1985 00:00:00 libs/jcommander-1.48.jar
..
---x------ 857721 1-Feb-1985 00:00:00 selenium-3.8.1-nodeps-sources.jar
---x------ 2137810 1-Feb-1985 00:00:00 selenium-3.8.1-nodeps.jar
while the selenium-server-standalone-3.8.1.jar contains the dependent classes and its own classes as direct entries ("class files in jar"):
..
-rw-rw-rw- 1014 10-Apr-2015 19:45:56 com/beust/jcommander/DynamicParameter.class
-rw-rw-rw- 237 10-Apr-2015 19:45:56 com/beust/jcommanderFuzzyMap$IKey.class
-rw-rw-rw- 2910 10-Apr-2015 19:45:56 com/beust/jcommander/FuzzyMap.class
..
Selenium is an opensource, web application automation testing tool suite which provides cross platform and cross browser automation facility.
Selenium is composed of multiple software tools that includes:-
(1). Selenium IDE, (2). Selenium RC, (3). Selenium WebDriver, (4). Selenium Grid
Coming to the Selenium Server,
The Selenium Server is a Selenium RC(Remote Control) component that which launches and kills browsers, interprets and runs the Selenese commands passed from the test program, and acts as an HTTP proxy, intercepting and verifying HTTP messages passed between the browser and the AUT(Application Under Test).
So, Selenium Server is needed to run Selenium RC and Selenium WebDriver tests remotely over multiple machines or VMs using Selenium Grid.
And the Selenium Server Standalone is a bundled jar that contains WebDriver API, Selenium Server and the Selenium Grid for running the tests locally and remotely across many platforms and browsers.
The Selenium Server is needed in order to run Remote Selenium
WebDriver. Selenium 3.X is no longer capable of running Selenium RC
directly, rather it does it through emulation and the
WebDriverBackedSelenium interface.
see https://docs.seleniumhq.org/download/
So,if you use Selenium RC,the Seleniium Server is what you need.if you use Selenium 3.X and update,selenium-server-standalone is what you need.I have the same question and i find the answer.