Update test environment to match ActiveAdmin 2.6 (#37)

Author: workgena

.gitignore

@@ -11,3 +11,5 @@
 .DS_Store
 /spec/rails
 .versions.conf
+vendor/bundle
+bin

.travis.yml

@@ -13,10 +13,10 @@ script: bundle exec rspec spec
 
 env:
   matrix:
-    - RAILS=4.2.0 AA=1.1.0
     - RAILS=5.2.0 AA=1.4.0
     - RAILS=5.2.0 AA=2.0.0
+    - RAILS=6.0.0 AA=2.6.0
 
 rvm:
-  - 2.4.6
-  - 2.6.3
+  - 2.5
+  - 2.6

Gemfile

@@ -3,17 +3,18 @@ source 'https://rubygems.org'
 gemspec
 
 group :test do
-  gem 'activeadmin', "~> #{ENV['AA'] || '2.0.0'}"
-  gem 'rails', "~> #{ENV['RAILS'] || '5.2.0'}"
+  gem 'rails', "~> #{ENV['RAILS'] || '6.0.0'}"
+  gem 'activeadmin', "~> #{ENV['AA'] || '2.6.0'}"
 
-  gem 'capybara'
-  gem 'chromedriver-helper'
+  gem 'sprockets-rails', '3.0.4'
+  gem 'rspec-rails'
   gem 'coveralls', require: false # Test coverage website. Go to https://coveralls.io
+  gem 'sass-rails'
+  gem 'sqlite3', '~> 1.4.0'
+  gem 'launchy'
   gem 'database_cleaner'
+  gem 'capybara'
+  gem 'webdrivers'
+  gem 'byebug'
   gem 'draper'
-  gem 'launchy'
-  gem 'rspec-rails'
-  gem 'sass-rails'
-  gem 'selenium-webdriver'
-  gem 'sqlite3', '~> 1.3.6'
 end

spec/spec_helper.rb

@@ -17,6 +17,7 @@
 require 'active_model'
 # require ActiveRecord to ensure that Ransack loads correctly
 require 'active_record'
+require 'action_view'
 require 'active_admin'
 ActiveAdmin.application.load_paths = [ENV['RAILS_ROOT'] + '/app/admin']
 require ENV['RAILS_ROOT'] + '/config/environment.rb'