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hbennet's solution

to Two Fer in the Ruby Track

Published at Aug 03 2020 · 0 comments
Test suite

Two-fer or 2-fer is short for two for one. One for you and one for me.

"One for X, one for me."

When X is a name or "you".

If the given name is "Alice", the result should be "One for Alice, one for me." If no name is given, the result should be "One for you, one for me."

For installation and learning resources, refer to the Ruby resources page.

For running the tests provided, you will need the Minitest gem. Open a terminal window and run the following command to install minitest:

gem install minitest

If you would like color output, you can require 'minitest/pride' in the test file, or note the alternative instruction, below, for running the test file.

Run the tests from the exercise directory using the following command:

ruby two_fer_test.rb

To include color from the command line:

ruby -r minitest/pride two_fer_test.rb



Submitting Incomplete Solutions

It's possible to submit an incomplete solution so you can see how others have completed the exercise.


require 'minitest/autorun'
require_relative 'two_fer'

# Common test data version: 1.2.0 4fc1acb
class TwoFerTest < Minitest::Test
  def test_no_name_given
    # skip
    assert_equal "One for you, one for me.", TwoFer.two_fer

  def test_a_name_given
    assert_equal "One for Alice, one for me.", TwoFer.two_fer("Alice")

  def test_another_name_given
    assert_equal "One for Bob, one for me.", TwoFer.two_fer("Bob")
Write your code for the 'Two Fer' exercise in this file. Make the tests in
`two_fer_test.rb` pass.

To get started with TDD, see the `README.md` file in your
`ruby/two-fer` directory.

class TwoFer
    def self.two_fer(n = "you")
        "One for #{n}, one for me."

What can you learn from this solution?

A huge amount can be learned from reading other people’s code. This is why we wanted to give exercism users the option of making their solutions public.

Here are some questions to help you reflect on this solution and learn the most from it.

  • What compromises have been made?
  • Are there new concepts here that you could read more about to improve your understanding?