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Gem Version Dependency Status Code Climate Join the chat at https://gitter.im/cucumber/aruba

This is the latest version of our README.md. If you want to see the one of the last released version of "aruba", please have a look at this one.

aruba is an extension for popular TDD and BDD frameworks like "Cucumber", "RSpec" and "Minitest" to make testing of commandline applications meaningful, easy and fun.

Your benefits:

  • Test any command line application implemented in any programming language - e.g. Bash, Python, Ruby, Java, ...
  • Manipulate the file system and the process environment with helpers working similar like tools you may know from your shell
  • No worries about leaking state: The file system and the process environment will be reset between tests
  • Support by a helpful and welcoming community – see our Code of Conduct
  • The documentation is our contract with you. You can expect aruba to work as documented

Our Vision:

  • Help our users to build better command line applications written in any programming language
  • Make creating documentation for command line simple and fun
  • Support the cucumber community in its effort to create a specification for all official cucumber implementations

Our Focus:

  • Test the user-interaction with the commands at runtime – this excludes the process of installation/deployment of commands like installing Rubygems with gem install <your-gem>.
Build status
Version Linux / OS X Windows
master [![Build Status](https://travis-ci.org/cucumber/aruba.svg?branch=master)](https://travis-ci.org/cucumber/aruba) [![Build status](https://ci.appveyor.com/api/projects/status/jfo2tkqhnrqqcivl?svg=true)](https://ci.appveyor.com/project/cucumberbdd/aruba/branch/master)
still [![Build Status](https://travis-ci.org/cucumber/aruba.svg?branch=still)](https://travis-ci.org/cucumber/aruba) [![Build status](https://ci.appveyor.com/api/projects/status/jfo2tkqhnrqqcivl?svg=true)](https://ci.appveyor.com/project/cucumberbdd/aruba/branch/still)

Install

Add this line to your application's Gemfile:

gem 'aruba'

And then execute:

$ bundle

Or install it yourself as:

$ gem install aruba

Release Policy

We try to be compliant to Semantic Versioning 2.0.0.

Supported ruby versions

For an up to date list of all supported ruby versions, please see our .travis.yml. We only test against the latest version of a version branch - most times.

Usage

Please also see this feature test for the most up to date documentation.

Initialize your project with "aruba"

There's an initializer to make it easier for you to getting started. If you prefer to setup aruba yourself, please move on to the next section.

  1. Go to your project's directory

  2. Make sure, it's under version control and all changes are committed to your version control repository

  3. Run one of the following commands depending on the tools you use to test your project.

    This assumes, that you use either rspec, cucumber-ruby or minitest to write the tests for your project. Besides that, your tool can be implemented in any programming language you like.

    aruba init --test-framework rspec
    aruba init --test-framework cucumber
    aruba init --test-framework minitest

Cucumber

  1. Create a file named "features/support/env.rb" with:

    require 'aruba/cucumber'
  2. Create a file named "features/use_aruba_with_cucumber.feature" with:

    Feature: Cucumber
      Scenario: First Run
        Given a file named "file.txt" with:
        """
        Hello World
        """
        Then the file "file.txt" should contain:
        """
        Hello World
        """
  3. Run cucumber

RSpec

  1. Create a file named "spec/support/aruba.rb" with:

    require 'aruba/rspec'
  2. Create a file named "spec/spec_helper.rb" with:

    $LOAD_PATH.unshift File.expand_path('../../lib', __FILE__)
    
    ::Dir.glob(::File.expand_path('../support/**/*.rb', __FILE__)).each { |f| require_relative f }
  3. Create a file named "spec/use_aruba_with_rspec_spec.rb" with:

    require 'spec_helper'
    
    RSpec.describe 'First Run', :type => :aruba do
      let(:file) { 'file.txt' }
      let(:content) { 'Hello World' }
    
      before(:each) { write_file file, content }
    
      it { expect(read(file)).to eq [content] }
    end
  4. Run rspec

Minitest

  1. Add a file named "test/support/aruba.rb" with:

    require 'aruba/api'
  2. Add a file named "test/test_helper.rb" with:

    $LOAD_PATH.unshift File.expand_path('../../lib', __FILE__)
    
    ::Dir.glob(::File.expand_path('../support/**/*.rb', __FILE__)).each { |f| require_relative f }
  3. Add a file named "test/use_aruba_with_minitest.rb" with:

    $LOAD_PATH.unshift File.expand_path('../test', __FILE__)
    
    require 'test_helper'
    require 'minitest/autorun'
    
    class FirstRun < Minitest::Test
      include Aruba::Api
    
      def setup
        aruba_setup
      end
    
      def getting_started_with_aruba
        file = 'file.txt'
        content = 'Hello World' 
    
        write_file file, content
        read(file).must_equal [content]
      end
    end
  4. Run your tests

    ruby -Ilib:test test/use_aruba_with_minitest.rb

Documentation

User Documentation

If you're interested in our steps and API, please browse our feature files. You can find a lot of examples there. A good starting point are Getting Started and Step Overview. A more or less full list of our steps can be found here. Our API is documentated here and some more information about how to configure aruba, can be found here. The "RSpec" matchers provided by aruba, are documented here you can use them with any testing framework we support.

You can find our documentation on Relish as well. Unfortunately "Relish" does not like the way we structured our feature tests. So this documentation found there may be not complete.

Table of Contents

There are some things which are still undocumented. We would like to encourage you to add documentation for those and send us a PR.

Developer Documentation

aruba provides a wonderful API to be used in your tests:

  • Creating files/directories
  • Deleting files/directories
  • Checking file size
  • Checking file existence/absence
  • ...

A full documentation of the API can be found here.

Contributing

Please see the CONTRIBUTING file.

Copyright

Copyright (c) 2010-2016 Aslak Hellesøy et al. See MIT License for details.

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Scott's hack of aruba to allow slashes in file matchers; see branch 0.14.2-match-slash

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