7. Introduction to Ruby Gems

Activity 7.01: Presenting Voting Data in CSV Format Using Ruby Gems

Solution

1. Download the votes.csv file from https://packt.live/2OzNN6a. Place this under test/fixtures. The CSV file will contain the following data:

   category,votee,count
   VoteCategoryA,Chris Jones,23
   VoteCategoryA,Susie Bennet,29
   VoteCategoryB,Allan Green,33
   VoteCategoryB,Tony Bennet,23

2. We'll start with our VoteImporter service object. Test whether it imports data from the CSV and perform a few basic checks to ensure that the content is what we're expecting. Create the test_vote_importer.rb file in the tests folder with the following code:

   require "minitest/autorun"
   require 'minitest/stub_any_instance'
   require_relative "../services/vote_importer"
   class TestVoteImporter < Minitest::Test
     def test_perform
       # Import vote data from our tests/fixtures/votes.csv file
       filepath = &apos...