Make sure railtie initializer runs in tests

Author: davidcelis

api-pagination.gemspec

@@ -18,7 +18,7 @@ Gem::Specification.new do |s|
 
   s.add_development_dependency 'rspec', '~> 3.0'
   s.add_development_dependency 'grape', '>= 0.10.0'
-  s.add_development_dependency 'railties', '>= 3.0.0'
-  s.add_development_dependency 'actionpack', '>= 3.0.0'
+  s.add_development_dependency 'railties', '>= 5.0.0'
+  s.add_development_dependency 'actionpack', '>= 5.0.0'
   s.add_development_dependency 'sequel', '>= 4.9.0'
 end

lib/api-pagination/hooks.rb

@@ -17,4 +17,18 @@
   WARNING
 end
 
-require 'api-pagination/railtie' if defined?(Rails)
+if defined?(Rails)
+  module ApiPagination
+    module Hooks
+      def self.rails_parent_controller
+        if Rails::VERSION::MAJOR >= 5 || defined?(ActionController::API)
+          ActionController::API
+        else
+          ActionController::Base
+        end
+      end
+    end
+  end
+
+  require 'api-pagination/railtie'
+end

spec/support/numbers_controller.rb

@@ -1,4 +1,4 @@
-require 'action_controller'
+require 'action_controller/railtie'
 require 'api-pagination/hooks'
 require 'ostruct'
 
@@ -59,7 +59,7 @@ def to_json(options = {})
   end
 end
 
-class NumbersController < ApiPagination::Hooks.rails_parent_controller
+class NumbersController < ActionController::API
   include Rails.application.routes.url_helpers
 
   def index
@@ -99,3 +99,5 @@ def index_with_paginate_array_options
     render json: NumbersSerializer.new(numbers)
   end
 end
+
+ApiPagination::Railtie.initializers.each(&:run)