Each of these applications makes use of a different version of nodejs and mongodb, as well as the associated libraries and dependencies, which differ from one application to another. Let’s say you have three different nodejs applications that you plan to host on a single server. A docker container is basically a software package that consists of all the dependencies required to run an application. It does this by virtualizing the operating system of the computer on which it is installed and running. Can you recall how many times you face an issue where code runs in another developer's machine but doesn't work on yours? Docker at a very basic level resolves this issue of an application working on one platform and not working on some other platform.ĭocker is a tool which is used to automate the deployment of applications in lightweight containers so that applications can work efficiently in different environments. Output: testTitle (_main_.TestUbuntuHomepage).

Here is a simple functional test in Python, using Selenium WebDriver and the unittest framework: #!/usr/bin/env pythonĬlass TestUbuntuHomepage(unittest.TestCase): This should open a Firefox browser sessions and navigate to On Ubuntu/Debian systems, this will install pip (and dependencies) and then install the Selenium Python bindings from PyPI: $ sudo apt-get install python-pipĪfter the installation, the following code should work: #!/usr/bin/env python The easiest way to install the bindings is via pip. This will give you access to your browser from Python code. To use the WebDriver API in Python, you must first install the Selenium Python bindings.

It is most often used for test automation, but can be adapted to a variety of web scraping or automation tasks. It allows you to programmatically drive a browser and interact with web elements. WebDriver (part of Selenium 2) is a library for automating browsers, and can be used from a variety of language bindings. The below info were taken from: Python - Getting Started With Selenium WebDriver on Ubuntu/Debian

Selenium on ubuntu