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.
Related
I am using PyCharm to run my robot framework-selenium scripts.
I am facing an issue
SessionNotCreatedException: Message: session not created: This version of ChromeDriver only supports Chrome version 91 Current browser version is 93.0.4577.63 with binary path
Attached are my settings.
How to upgrade chromedriver for Chrome version 93 or any other suggestion. I have 75 automation scripts and it is not feasible to add driver = chrome path in all the scripts.
Browser drivers
The general approach to install a browser driver is downloading a right driver, such as chromedriver for Chrome, and placing it into a directory that is in PATH
Drivers for different browsers can be found via Selenium documentation or by using your favorite search engine with a search term like selenium chrome browser driver. New browser driver versions are released to support features in new browsers, fix bug, or otherwise, and you need to keep an eye on them to know when to update drivers you use.
Alternatively, you can use a tool called WebdriverManagerwhich can find the latest version or when required, any version of appropriate webdrivers for you and then download and link/copy it into right location. Tool can run on all major operating systems and supports downloading of Chrome, Firefox, Opera & Edge webdrivers.
Here's an example:
pip install webdrivermanager
webdrivermanager firefox chrome --linkpath /usr/local/bin
Please go through, here, everything is documented here.
Due to organization policy, the Chrome browser installation on my Windows Server machine is automatically updated. I have some processes that rely on python Selenium and chromedriver. Because of this, my process breaks whenever my org decides to push out an update.
Is it possible to have chromedriver depend on some binary other than Chrome browser that will not be managed by my organization so that this doesn't happen?
Few of the workarounds to resolve the issue:
We have kept the chrome exe file in an artifactory and we download and install that particular chrome version every time before our execution through automation (our requirement is like that).
As #Corey is suggesting you can webdrivermanager, PFB link for more details
https://github.com/bonigarcia/webdrivermanager
You can try Dockerized Selenium, there you'll have the control in the docker-compose.yml file.
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.
I'm trying to do testing with Selenium 2 and phpunit. I'm using selenium-server-standalone-2.53.1.jar and launch the test firefox opens blank and does nothing.
phpunit gives this message:
PHPUnit_Extensions_Selenium2TestCase_WebDriverException: Unable to connect to host 127.0.0.1 on port 7055 after 45000 ms. Firefox console output
Can anyone tell me what happens? Thmks.
Use geckodriver.
You need geckodriver for running tests in latest Firefox browsers. Firefox doesn't support Firefox driver anymore.
Download geckodriver and place it in PATH
Use Selenium 3.0 for running tests
Or use Firefox 47.* or 45 ESR with the old driver.
Background
Firefox release 48.0 states the following:
Add-ons that have not been verified and signed by Mozilla will not load
Firefox driver fell under this category, and it had no chances of passing verification without being re-written. Geckodriver, though, is built in the same way as Chromedriver and IEdriver are, and kinda works.
Some more info is available here
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.