require "abstract_unit" require "controller/fake_models" require "active_support/logger" require "pathname" class RenderJsonTest < ActionController::TestCase class JsonRenderable def as_json(options = {}) hash = { a: :b, c: :d, e: :f } hash.except!(*options[:except]) if options[:except] hash end def to_json(options = {}) super except: [:c, :e] end end class TestController < ActionController::Base protect_from_forgery def self.controller_path "test" end def render_json_nil render json: nil end def render_json_render_to_string render plain: render_to_string(json: "[]") end def render_json_hello_world render json: ActiveSupport::JSON.encode(hello: "world") end def render_json_hello_world_with_status render json: ActiveSupport::JSON.encode(hello: "world"), status: 401 end def render_json_hello_world_with_callback render json: ActiveSupport::JSON.encode(hello: "world"), callback: "alert" end def render_json_with_custom_content_type render json: ActiveSupport::JSON.encode(hello: "world"), content_type: "text/javascript" end def render_symbol_json render json: ActiveSupport::JSON.encode(hello: "world") end def render_json_with_render_to_string render json: { hello: render_to_string(partial: "partial") } end def render_json_with_extra_options render json: JsonRenderable.new, except: [:c, :e] end def render_json_without_options render json: JsonRenderable.new end end tests TestController def setup # enable a logger so that (e.g.) the benchmarking stuff runs, so we can get # a more accurate simulation of what happens in "real life". super @controller.logger = ActiveSupport::Logger.new(nil) @request.host = "www.nextangle.com" end def test_render_json_nil get :render_json_nil assert_equal "null", @response.body assert_equal "application/json", @response.content_type end def test_render_json_render_to_string get :render_json_render_to_string assert_equal "[]", @response.body end def test_render_json get :render_json_hello_world assert_equal '{"hello":"world"}', @response.body assert_equal "application/json", @response.content_type end def test_render_json_with_status get :render_json_hello_world_with_status assert_equal '{"hello":"world"}', @response.body assert_equal 401, @response.status end def test_render_json_with_callback get :render_json_hello_world_with_callback, xhr: true assert_equal '/**/alert({"hello":"world"})', @response.body assert_equal "text/javascript", @response.content_type end def test_render_json_with_custom_content_type get :render_json_with_custom_content_type, xhr: true assert_equal '{"hello":"world"}', @response.body assert_equal "text/javascript", @response.content_type end def test_render_symbol_json get :render_symbol_json assert_equal '{"hello":"world"}', @response.body assert_equal "application/json", @response.content_type end def test_render_json_with_render_to_string get :render_json_with_render_to_string assert_equal '{"hello":"partial html"}', @response.body assert_equal "application/json", @response.content_type end def test_render_json_forwards_extra_options get :render_json_with_extra_options assert_equal '{"a":"b"}', @response.body assert_equal "application/json", @response.content_type end def test_render_json_calls_to_json_from_object get :render_json_without_options assert_equal '{"a":"b"}', @response.body end end