Fix broken test on Travis CI

Appraisals

@@ -11,7 +11,11 @@ appraise 'rails-41' do
   gem 'rails', '~> 4.1.1'
 end
 
+appraise 'rails-42' do
+  gem 'rails', '~> 4.2.0'
+end
+
 appraise 'rails-5' do
-  gem 'rails', '~> 5.0'
+  gem 'rails', '~> 5.0.0'
   gem 'rails-controller-testing'
 end

gemfiles/rails_3.gemfile

@@ -5,4 +5,4 @@ source "https://rubygems.org"
 gem "rails", "~> 3.2.18"
 gem "test-unit", "~> 3.0"
 
-gemspec :path => "../"
+gemspec path: "../"

gemfiles/rails_4.gemfile

@@ -4,4 +4,4 @@ source "https://rubygems.org"
 
 gem "rails", "~> 4.0.5"
 
-gemspec :path => "../"
+gemspec path: "../"

gemfiles/rails_41.gemfile

@@ -4,4 +4,4 @@ source "https://rubygems.org"
 
 gem "rails", "~> 4.1.1"
 
-gemspec :path => "../"
+gemspec path: "../"

gemfiles/rails_42.gemfile

@@ -0,0 +1,7 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "rails", "~> 4.2.0"
+
+gemspec path: "../"

gemfiles/rails_5.gemfile

@@ -2,7 +2,7 @@
 
 source "https://rubygems.org"
 
-gem "rails", "~> 5.0"
+gem "rails", "~> 5.0.0"
 gem "rails-controller-testing"
 
-gemspec :path => "../"
+gemspec path: "../"

test/dummy/config/boot.rb

@@ -1,5 +1,5 @@
 # Set up gems listed in the Gemfile.
 ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../../../../Gemfile', __FILE__)
 
-require 'bundler/setup' if File.exists?(ENV['BUNDLE_GEMFILE'])
+require 'bundler/setup' if File.exist?(ENV['BUNDLE_GEMFILE'])
 $LOAD_PATH.unshift File.expand_path('../../../../lib', __FILE__)