Selenium/Ruby/Target MediaWiki-Vagrant virtual machine

From mediawiki.org

For this example, we will not enable any roles and we will use MediaWiki core.

Advantages[edit]

Running Selenium tests targeting MediaWiki-Vagrant machine has several advantages:

  • It will be fast, since the target machine is local.
    • MediaWiki core Selenium test run takes about 3 minutes on my machine.
    • It takes about 6-7 minutes for selenium-Core Jenkins job to run.
  • After everything is set up, you do not need internet connection.
  • Debugging failed tests will be easier, since you will see the browser.
  • You are probably already familiar with MediaWiki-Vagrant and have it installed.

Disadvantages[edit]

  • You might not be familiar with MediaWiki-Vagrant, so you will have to learn how to install and use yet another tool.
  • You will have to install MediaWiki-Vagrant, Selenium and their dependencies on your machine.
  • While the tests are running the host machine will be hard to use because Chrome will be opening and closing for every test (but not stealing focus).

Set up MediaWiki-Vagrant[edit]

Boot the machine[edit]

$ vagrant up
Bringing machine 'default' up with 'virtualbox' provider...
...
==> default: Notice: Finished catalog run in 248.92 seconds

Go to mediawiki folder[edit]

$ cd mediawiki

Install dependencies[edit]

You will need internet access for this step. Depending on your operating system, installing dependencies will be different.

Chrome[edit]

Ruby[edit]

Installing Ruby might be easier, or harder.

  • On Linux, please use appropriate package manager.
  • On Windows, please use RubyInstaller.
  • It should already installed on Mac machines.
  • Ruby 2.0 or newer is required.
  • Third-party tools like rbenv or RVM are not required.

After installation, check if everything is all right. 

$ ruby -v
ruby 2.3.1p112 (2016-04-26 revision 54768) [x86_64-darwin15]

Install required Ruby packages (gems). 

$ gem install bundler --no-rdoc --no-ri
Fetching: bundler-1.13.6.gem (100%)
Successfully installed bundler-1.13.6
1 gem installed

$ bundle install
...
Use `bundle show [gemname]` to see where a bundled gem is installed.

Run the Selenium tests[edit]

$ bundle exec rake selenium
...
/usr/local/Cellar/ruby/2.4.0/bin/ruby -S bundle exec cucumber tests/browser --tags @chrome
...
20 scenarios (20 passed)
103 steps (103 passed)
1m8.896s

suspend or halt the machine[edit]

$ vagrant suspend
==> default: Saving VM state and suspending execution...

or 

$ vagrant halt
==> default: Attempting graceful shutdown of VM...
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