Test with latest Rails versions

.travis.yml

@@ -12,7 +12,6 @@ rvm:
   - jruby-9.2.13.0
 
 gemfile:
-  - gemfiles/rails_4.2.10.gemfile
-  - gemfiles/rails_5.0.7.gemfile
-  - gemfiles/rails_5.1.6.gemfile
-  - gemfiles/rails_5.2.0.gemfile
+  - gemfiles/rails_5.1.7.gemfile
+  - gemfiles/rails_5.2.4.gemfile
+  - gemfiles/rails_6.0.3.gemfile

Appraisals

@@ -1,10 +1,9 @@
 # frozen_string_literal: true
 
 RAILS_VERSIONS = %w[
-  4.2.10
-  5.0.7
-  5.1.6
-  5.2.0
+  5.1.7
+  5.2.4
+  6.0.3
 ].freeze
 
 RAILS_VERSIONS.each do |version|

bin/appraisal

@@ -0,0 +1,29 @@
+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+#
+# This file was generated by Bundler.
+#
+# The application 'appraisal' is installed as part of a gem, and
+# this file is here to facilitate running it.
+#
+
+require "pathname"
+ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../../Gemfile",
+  Pathname.new(__FILE__).realpath)
+
+bundle_binstub = File.expand_path("../bundle", __FILE__)
+
+if File.file?(bundle_binstub)
+  if File.read(bundle_binstub, 300) =~ /This file was generated by Bundler/
+    load(bundle_binstub)
+  else
+    abort("Your `bin/bundle` was not generated by Bundler, so this binstub cannot run.
+Replace `bin/bundle` by running `bundle binstubs bundler --force`, then run this command again.")
+  end
+end
+
+require "rubygems"
+require "bundler/setup"
+
+load Gem.bin_path("appraisal", "appraisal")

gemfiles/rails_5.0.7.gemfile → gemfiles/rails_5.1.7.gemfile

@@ -2,6 +2,6 @@
 
 source "https://rubygems.org"
 
-gem "activejob", "5.0.7"
+gem "activejob", "5.1.7"
 
 gemspec path: "../"

gemfiles/rails_5.1.6.gemfile → gemfiles/rails_5.2.4.gemfile

@@ -2,6 +2,6 @@
 
 source "https://rubygems.org"
 
-gem "activejob", "5.1.6"
+gem "activejob", "5.2.4"
 
 gemspec path: "../"

gemfiles/rails_5.2.0.gemfile → gemfiles/rails_6.0.3.gemfile

@@ -2,6 +2,6 @@
 
 source "https://rubygems.org"
 
-gem "activejob", "5.2.0"
+gem "activejob", "6.0.3"
 
 gemspec path: "../"