More thorough JSON tests. Use application/json by default, per rfc4627. References #4185.

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@5695 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

actionpack/lib/action_controller/mime_types.rb

@@ -2,10 +2,12 @@ Mime::Type.register "*/*", :all
 Mime::Type.register "text/plain", :text
 Mime::Type.register "text/html", :html, %w( application/xhtml+xml ), %w( xhtml )
 Mime::Type.register "text/javascript", :js, %w( application/javascript application/x-javascript )
-Mime::Type.register "text/x-json", :json, %w( application/x-json )
 Mime::Type.register "text/calendar", :ics
 Mime::Type.register "text/csv", :csv
 Mime::Type.register "application/xml", :xml, %w( text/xml application/x-xml )
 Mime::Type.register "application/rss+xml", :rss
 Mime::Type.register "application/atom+xml", :atom
-Mime::Type.register "application/x-yaml", :yaml, %w( text/yaml )
+Mime::Type.register "application/x-yaml", :yaml, %w( text/yaml )
+
+# http://www.ietf.org/rfc/rfc4627.txt
+Mime::Type.register "application/json", :json, %w( text/x-json )

actionpack/test/controller/mime_responds_test.rb

@@ -170,18 +170,26 @@ class MimeControllerTest < Test::Unit::TestCase
     get :just_xml
     assert_response 406
   end
-  
+
   def test_json_or_yaml
     get :json_or_yaml
     assert_equal 'JSON', @response.body
-    
-    @request.env["HTTP_ACCEPT"] = "text/yaml"
-    get :json_or_yaml
-    assert_equal 'YAML', @response.body
-    
-    @request.env["HTTP_ACCEPT"] = "text/x-json"
-    get :json_or_yaml
+
+    get :json_or_yaml, :format => 'json'
     assert_equal 'JSON', @response.body
+
+    get :json_or_yaml, :format => 'yaml'
+    assert_equal 'YAML', @response.body
+
+    { 'YAML' => %w(text/yaml),
+      'JSON' => %w(application/json text/x-json)
+    }.each do |body, content_types|
+      content_types.each do |content_type|
+        @request.env['HTTP_ACCEPT'] = content_type
+        get :json_or_yaml
+        assert_equal body, @response.body
+      end
+    end
   end
 
   def test_js_or_anything

actionpack/test/controller/render_test.rb

@@ -38,11 +38,11 @@ class TestController < ActionController::Base
   def render_text_hello_world
     render_text "hello world"
   end
-  
+
   def render_json_hello_world
     render_json({:hello => 'world'}.to_json)
   end
-  
+
   def render_json_hello_world_with_callback
     render_json({:hello => 'world'}.to_json, 'alert')
   end
@@ -171,15 +171,17 @@ class RenderTest < Test::Unit::TestCase
     get :render_text_hello_world
     assert_equal "hello world", @response.body
   end
-  
+
   def test_do_with_render_json
     get :render_json_hello_world
     assert_equal '{hello: "world"}', @response.body
+    assert_equal 'application/json', @response.content_type
   end
-  
+
   def test_do_with_render_json_with_callback
     get :render_json_hello_world_with_callback
     assert_equal 'alert({hello: "world"})', @response.body
+    assert_equal 'application/json', @response.content_type
   end
 
   def test_do_with_render_custom_code