Vagrant Cucumber
This is an open source project published by The Scale Factory.
We currently consider this project to be archived.
⚠️ We’re no longer using or working on this project. It remains available for posterity or reference, but we’re no longer accepting issues or pull requests.
Description
This plugin allows Vagrant to run Cucumber features, and provides some glue for working with Vagrant boxes within your Cucumber steps.
It was originally developed to help us test configuration management scripts, and with the following workflow in mind:
- Start one or more Vagrant boxes
- Configure these boxes with some default state
- Snapshot each box in this default state.
- In each Cucumber scenario
- Run config management tools inside the box to make configuration changes
- Test that these changes produce the desired result
- Roll the VM state back, ready for the next scenario
Requirements
Since 0.1.x
this plugin requires a minimum Vagrant version of 1.8.4
.
The plugin requires the cucumber
gem, but will install this itself if
required.
Vagrant Cucumber currently works only with the current Vagrant providers:
- VirtualBox
- VMWare Fusion (using the commercial VMWare plugin for Vagrant)
Installation
Assuming you're running the packaged version of Vagrant, the easiest way to install this plugin is via the published gem:
vagrant plugin install vagrant-cucumber
vagrant-cucumber
will install a version of cucumber >= 2.4.0 under the
Ruby environment provided by Vagrant.
Usage
This plugin adds a subcommand, vagrant cucumber
- this simply wraps
the usual cucumber
command line handler. Refer to the documentation for
cucumber for details, or use vagrant cucumber -h
for a full list of
options.
Example
The git source of the plugin includes a folder called "example", which contains a Vagrantfile and features directory which demonstrates the plugin in action.
The Vagrantfile defines two basic VMs which will be used to run our tests. It will work with either the Virtualbox or the VMWare Fusion provider.
Use vagrant up
in that folder in order to start the default VM. (In the
current version of the plugin, VMs must be running before they can be used
in tests). If you don't already have the standard precise64
vagrant box, it
will be fetched from the Vagrant website. If you prefer to use the VMWare
provider, add --provider=vmware_fusion
to the commandline.
To run all the tests, run:
vagrant cucumber
.
The tests are split between multiple feature files. You can run one feature file at a time by specifying it on the commandline:
vagrant cucumber features/basic.feature
basic.feature
demonstrates running basic shell commands inside the VM
both as the standard vagrant
user, and as root
. It also contains a test to
show that snapshot rollback is working correctly.
multivm.feature
shows how steps can reference different VMs. For details
on how to write your own step definitions which can work on multiple VMs,
see the next section.
The test in multivm.feature
also demonstrates use of cucumber tags.
The test scenario is preceded with the tag @vagrant-cucumber-debug
. This
causes debug output to be emitted.
We also provide a @norollback
tag, which prevents the VMs from being
rolled back at the end of the scenario. This is useful for debugging.
Implementation Detail
The best place to gain an understanding of the implementation of Cucumber steps
is in example/features/step_definitions/process.rb
. I've heavily
commented this in order to be a good working example.
example/features/process.feature
uses these step definitions.
Other step definitions and hooks are defined in
lib/vagrant-cucumber/step_definitions.rb
.
License
vagrant-cucumber
is licensed under the MIT license.