Rails 6 support fo 0.9.x

.travis.yml

@@ -5,7 +5,7 @@ env:
   - "RAILS_VERSION=5.0.7.2"
   - "RAILS_VERSION=5.1.7"
   - "RAILS_VERSION=5.2.3"
-#  - "RAILS_VERSION=6.0.0.beta1"
+  - "RAILS_VERSION=6.0.0"
 #  - "RAILS_VERSION=master"
 rvm:
   - 2.3.8
@@ -19,5 +19,9 @@ matrix:
   exclude:
     - rvm: 2.6.4
       env: "RAILS_VERSION=4.2.11"
+    - rvm: 2.3.8
+      env: "RAILS_VERSION=6.0.0"
+    - rvm: 2.4.7
+      env: "RAILS_VERSION=6.0.0"
 before_install:
-  - gem install bundler --version 1.17.3
+  - gem install bundler --version 1.17.3

Gemfile

@@ -2,22 +2,26 @@ source 'https://rubygems.org'
 
 gemspec
 
-platforms :ruby do
-  gem 'sqlite3', '1.3.10'
-end
-
 platforms :jruby do
   gem 'activerecord-jdbcsqlite3-adapter'
 end
 
 version = ENV['RAILS_VERSION'] || 'default'
 
+platforms :ruby do
+  if version.start_with?('4.2', '5.0')
+    gem 'sqlite3', '~> 1.3.13'
+  else
+    gem 'sqlite3', '~> 1.4'
+  end
+end
+
 case version
 when 'master'
   gem 'railties', { git: 'https://github.com/rails/rails.git' }
   gem 'arel', { git: 'https://github.com/rails/arel.git' }
 when 'default'
-  gem 'railties', '>= 5.0'
+  gem 'railties', '>= 6.0'
 else
   gem 'railties', "~> #{version}"
 end

test/test_helper.rb

@@ -470,7 +470,8 @@ class ActionDispatch::IntegrationTest
   fixtures :all
 
   def assert_jsonapi_response(expected_status, msg = nil)
-    assert_equal JSONAPI::MEDIA_TYPE, response.content_type
+    media_type = Rails::VERSION::MAJOR >= 6 ? response.media_type : response.content_type
+    assert_equal JSONAPI::MEDIA_TYPE, media_type
     if status != expected_status && status >= 400
       pp json_response rescue nil
     end