https://github.com/jhsu/kata-21

Code Kata 21 from http://codekata.pragprog.com/2007/01/kata_twenty_one.html
https://github.com/jhsu/kata-21

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Code Kata 21 from http://codekata.pragprog.com/2007/01/kata_twenty_one.html

• Host: GitHub
• URL: https://github.com/jhsu/kata-21
• Owner: jhsu
• Created: 2012-06-30T00:20:51.000Z (almost 13 years ago)
• Default Branch: master
• Last Pushed: 2012-07-10T17:42:36.000Z (almost 13 years ago)
• Last Synced: 2025-04-04T14:54:57.218Z (about 1 month ago)
• Language: Ruby
• Size: 102 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.markdown

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README

        
# Code Kata 21

Attempted by Joseph Hsu 

[![Build Status](https://secure.travis-ci.org/jhsu/kata-21.png)](http://travis-ci.org/jhsu/kata-21)

[![Code Climate](https://codeclimate.com/badge.png)](https://codeclimate.com/github/jhsu/kata-21)

Kata from http://codekata.pragprog.com/2007/01/kata_twenty_one.html

    list = List.new

    assert_nil(list.find("fred"))

    list.add("fred")

    assert_equal("fred", list.find("fred").value())

    assert_nil(list.find("wilma"))

    list.add("wilma")

    assert_equal("fred",  list.find("fred").value())

    assert_equal("wilma", list.find("wilma").value())

    assert_equal(["fred", "wilma"], list.values())

    

    list = List.new

    list.add("fred")

    list.add("wilma")

    list.add("betty")

    list.add("barney")

    assert_equal(["fred", "wilma", "betty", "barney"], list.values())

    list.delete(list.find("wilma"))

    assert_equal(["fred", "betty", "barney"], list.values())

    list.delete(list.find("barney"))

    assert_equal(["fred", "betty"], list.values())

    list.delete(list.find("fred"))

    assert_equal(["betty"], list.values())

    list.delete(list.find("betty"))

    assert_equal([], list.values())

    

## Running tests

1. Install gems using  `bundle install` (if on non-mac, run `bundle install --without=mac`)

2. run `rake`