README.md

##RSpec Code Coverage Lab

How do we know we have enough tests, and that our tests cover all of our code?

Enter simplecov! simplecov is a tool that will measure your test run against the code paths in your code files and see if you're exercising them all. "Code Paths" includes method calls, conditional statements, loops, and anything that branches program flow.

This is important because you want to be able to know that every decision your program makes is being tested, no matter what.

Assignment

Given the above Jukebox and Song classes, write the tests required in jukebox_spec.rb to get yourself to 100% code coverage on simplecov.

Instructions

1. Install the simplecov gem.
2. Run your spec file with rspec

You should see output at the end of the test results that looks something like: Coverage report generated for RSpec to /Users/scottreynolds/code/ta/labs/simplecov/coverage. 14 / 33 LOC (42.42%) covered.

3. Open coverage/index.html in your browser window to view the report.
4. When you hit 100% test coverage, submit either a gist or a repository of your solution and the coverage report

jukebox.rb

# A Jukebox filled with songs
# that responds to help, list, play, and exit
require_relative 'song'

class Jukebox
  attr_accessor :songs
  APPROVED_COMMANDS = [:list, :help, :exit]

  def initialize(songs)
    @songs = songs
    @on = true
  end

  def on?
    @on
  end

  def help
    "Please select help, list, exit, or play."
  end

  def command(input)
    response = ''

    if APPROVED_COMMANDS.include?(input.strip.downcase.to_sym)
      response = self.send(input)
    elsif input.start_with?("play")
      song_request = input.split("play").last.strip
      response = self.play(song_request)
    else
      response = "invalid command"
    end
    response
  end

  def exit
    @on = false
    "Goodbye, thanks for listening!"
  end

  def list
    list = ""
    songs.each_with_index do |song, i|
      list += "#{i+1} #{song.name}\n"
    end
    list
  end

  def play(song_request)
    "now playing #{song_request}"
  end

end

jukebox_spec.rb

require 'simplecov'
SimpleCov.start
require 'json'
require 'rspec'

require_relative 'jukebox'
require_relative 'song'

#use this song data for your tests
#songs = [
 #"The Phoenix - 1901",
 #"Tokyo Police Club - Wait Up",
 #"Sufjan Stevens - Too Much",
 #"The Naked and the Famous - Young Blood",
 #"(Far From) Home - Tiga",
 #"The Cults - Abducted",
 #"The Phoenix - Consolation Prizes"
#]

describe Song do

end

describe Jukebox do

end

song.rb

class Song
  attr_accessor :name

  def initialize(name)
    @name = name
  end
end