CliTester is a simple set of helpers for testing command line interfaces with RSpec. It provides a method to run command line applications and a way to check the output and exit codes.

Use it in combination with GivenFilesystem for convenient testing of command line applications.

CliTester is licensed under the MIT license.

If you have questions or comments, please get in touch with Cornelius Schumacher schumacher@kde.org.

To make the helpers of cli_tester available in your tests add the cli_tester gem to your Gemfile and include the CliTester module in your tests, e.g. in your spec_helper.rb:

require "cli_tester"

include CliTester

• run_command: Run command with specified arguments
• exits_with_success: Check that executable exits with exit code 0
• exits_with_error: Check that executable exits with exit code different from 0