Vanilla Ruby Command Line Project
This repository shows a basic setup for a command line application in Ruby.
Ruby and Bundler is expected to be installed on our system.
After cloning this repository, change into the newly created directory and run
This will install all dependencies needed for the project.
Running the Tests
All tests can be run by executing
bundle exec rspec
rspec will automatically find all tests inside the
spec directory and run them.
The test for class
Example is only verifying the return value of one method.
Main on the other hand is tested via a test-double that gets injected.
This allows us to spy on the output of it.
We want to avoid printing anything to the screen while running the tests.
Injecting a test double in this instance is a nice way to isolate our application from the command line.
In the executable
bin/example we inject
$stdout, which is Ruby's variable for its standard output.
Running the Application
To run the application execute
You should see the text “Ruby Example” being printed.
$: ./bin/example Ruby Example
This project is licensed under the MIT License - see the license.md file for details.