Add helpful testing gems

Addresses #1911 (comment)

Author: Lee Richmond

Gemfile

@@ -45,6 +45,8 @@ group :test do
   gem 'sqlite3',                          platform: (@windows_platforms + [:ruby])
   gem 'activerecord-jdbcsqlite3-adapter', platform: :jruby
   gem 'codeclimate-test-reporter', require: false
+  gem 'm', '~> 1.5', platform: [:ruby]
+  gem 'pry-byebug', '~> 3.4', platform: [:ruby]
 end
 
 group :development, :test do

test/test_helper.rb

@@ -9,6 +9,12 @@
   STDERR.puts 'Running without SimpleCov'
 end
 
+begin
+  require 'pry-byebug'
+rescue LoadError
+  STDOUT.puts 'Running without pry-byebug...'
+end
+
 require 'timecop'
 require 'rails'
 require 'action_controller'