render_test.rb 12.5 KB
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464
require File.dirname(__FILE__) + '/../abstract_unit'
require File.dirname(__FILE__) + '/fake_models'

module Fun
  class GamesController < ActionController::Base
    def hello_world
    end
  end
end


# FIXME: crashes Ruby 1.9
class TestController < ActionController::Base
  layout :determine_layout

  def hello_world
  end

  def render_hello_world
    render :template => "test/hello_world"
  end

  def render_hello_world_from_variable
    @person = "david"
    render :text => "hello #{@person}"
  end

  def render_action_hello_world
    render :action => "hello_world"
  end

  def render_action_hello_world_with_symbol
    render :action => :hello_world
  end

  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, :callback => 'alert'
  end

  def render_json_with_custom_content_type
    render :json => {:hello => 'world'}.to_json, :content_type => 'text/javascript'
  end

  def render_symbol_json
    render :json => {:hello => 'world'}.to_json
  end

  def render_custom_code
    render :text => "hello world", :status => 404
  end

  def render_nothing_with_appendix
    render :text => "appended"
  end
  
  def render_invalid_args
    render("test/hello")
  end

  def render_xml_hello
    @name = "David"
    render :template => "test/hello"
  end

  def render_xml_with_custom_content_type
    render :xml => "<blah/>", :content_type => "application/atomsvc+xml"
  end

  def heading
    head :ok
  end

  def greeting
    # let's just rely on the template
  end

  def layout_test
    render :action => "hello_world"
  end

  def builder_layout_test
    render :action => "hello"
  end

  def builder_partial_test
    render :action => "hello_world_container"
  end

  def partials_list
    @test_unchanged = 'hello'
    @customers = [ Customer.new("david"), Customer.new("mary") ]
    render :action => "list"
  end

  def partial_only
    render :partial => true
  end

  def hello_in_a_string
    @customers = [ Customer.new("david"), Customer.new("mary") ]
    render :text => "How's there? " + render_to_string(:template => "test/list")
  end

  def accessing_params_in_template
    render :inline => "Hello: <%= params[:name] %>"
  end

  def accessing_local_assigns_in_inline_template
    name = params[:local_name]
    render :inline => "<%= 'Goodbye, ' + local_name %>",
           :locals => { :local_name => name }
  end

  def accessing_local_assigns_in_inline_template_with_string_keys
    name = params[:local_name]
    ActionView::Base.local_assigns_support_string_keys = true
    render :inline => "<%= 'Goodbye, ' + local_name %>",
           :locals => { "local_name" => name }
    ActionView::Base.local_assigns_support_string_keys = false
  end

  def formatted_html_erb
  end

  def formatted_xml_erb
  end

  def render_to_string_test
    @foo = render_to_string :inline => "this is a test"
  end

  def partial
    render :partial => 'partial'
  end

  def partial_dot_html
    render :partial => 'partial.html.erb'
  end
  
  def partial_as_rjs
    render :update do |page|
      page.replace :foo, :partial => 'partial'
    end
  end

  def respond_to_partial_as_rjs
    respond_to do |format|
      format.js do
        render :update do |page|
          page.replace :foo, :partial => 'partial'
        end
      end
    end
  end

  def default_render
    if @alternate_default_render
      @alternate_default_render.call
    else
      render
    end
  end

  def render_alternate_default
    # For this test, the method "default_render" is overridden:
    @alternate_default_render = lambda {
	render :update do |page|
	  page.replace :foo, :partial => 'partial'
	end
      }
  end

  def rescue_action(e) raise end

  private
    def determine_layout
      case action_name
        when "layout_test";         "layouts/standard"
        when "builder_layout_test"; "layouts/builder"
        when "render_symbol_json";  "layouts/standard"  # to make sure layouts don't interfere
      end
    end
end

TestController.view_paths = [ File.dirname(__FILE__) + "/../fixtures/" ]
Fun::GamesController.view_paths = [ File.dirname(__FILE__) + "/../fixtures/" ]

class RenderTest < Test::Unit::TestCase
  def setup
    @request    = ActionController::TestRequest.new
    @response   = ActionController::TestResponse.new
    @controller = TestController.new

    @request.host = "www.nextangle.com"
  end

  def test_simple_show
    get :hello_world
    assert_response 200
    assert_template "test/hello_world"
  end

  def test_render
    get :render_hello_world
    assert_template "test/hello_world"
  end

  def test_render_from_variable
    get :render_hello_world_from_variable
    assert_equal "hello david", @response.body
  end

  def test_render_action
    get :render_action_hello_world
    assert_template "test/hello_world"
  end

  def test_render_action_with_symbol
    get :render_action_hello_world_with_symbol
    assert_template "test/hello_world"
  end

  def test_render_text
    get :render_text_hello_world
    assert_equal "hello world", @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_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_render_json_with_custom_content_type
    get :render_json_with_custom_content_type
    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_custom_code
    get :render_custom_code
    assert_response 404
    assert_equal 'hello world', @response.body
  end

  def test_render_nothing_with_appendix
    get :render_nothing_with_appendix
    assert_response 200
    assert_equal 'appended', @response.body
  end
  
  def test_attempt_to_render_with_invalid_arguments
    assert_raises(ActionController::RenderError) { get :render_invalid_args }
  end
  
  def test_attempt_to_access_object_method
    assert_raises(ActionController::UnknownAction, "No action responded to [clone]") { get :clone }
  end

  def test_private_methods
    assert_raises(ActionController::UnknownAction, "No action responded to [determine_layout]") { get :determine_layout }
  end

  def test_render_xml
    get :render_xml_hello
    assert_equal "<html>\n  <p>Hello David</p>\n<p>This is grand!</p>\n</html>\n", @response.body
    assert_equal "application/xml", @response.content_type
  end

  def test_render_xml_with_default
    get :greeting
    assert_equal "<p>This is grand!</p>\n", @response.body
  end

  def test_render_xml_with_partial
    get :builder_partial_test
    assert_equal "<test>\n  <hello/>\n</test>\n", @response.body
  end

  def test_layout_rendering
    get :layout_test
    assert_equal "<html>Hello world!</html>", @response.body
  end

  def test_render_xml_with_layouts
    get :builder_layout_test
    assert_equal "<wrapper>\n<html>\n  <p>Hello </p>\n<p>This is grand!</p>\n</html>\n</wrapper>\n", @response.body
  end

  # def test_partials_list
  #   get :partials_list
  #   assert_equal "goodbyeHello: davidHello: marygoodbye\n", process_request.body
  # end

  def test_partial_only
    get :partial_only
    assert_equal "only partial", @response.body
  end

  def test_render_to_string
    get :hello_in_a_string
    assert_equal "How's there? goodbyeHello: davidHello: marygoodbye\n", @response.body
  end

  def test_render_to_string_resets_assigns
    get :render_to_string_test
    assert_equal "The value of foo is: ::this is a test::\n", @response.body
  end

  def test_nested_rendering
    @controller = Fun::GamesController.new
    get :hello_world
    assert_equal "Living in a nested world", @response.body
  end

  def test_accessing_params_in_template
    get :accessing_params_in_template, :name => "David"
    assert_equal "Hello: David", @response.body
  end

  def test_accessing_local_assigns_in_inline_template
    get :accessing_local_assigns_in_inline_template, :local_name => "Local David"
    assert_equal "Goodbye, Local David", @response.body
  end

  def test_accessing_local_assigns_in_inline_template_with_string_keys
    get :accessing_local_assigns_in_inline_template_with_string_keys, :local_name => "Local David"
    assert_equal "Goodbye, Local David", @response.body
  end

  def test_render_200_should_set_etag
    get :render_hello_world_from_variable
    assert_equal etag_for("hello david"), @response.headers['ETag']
    assert_equal "private, max-age=0, must-revalidate", @response.headers['Cache-Control']
  end

  def test_render_against_etag_request_should_304_when_match
    @request.headers["HTTP_IF_NONE_MATCH"] = etag_for("hello david")
    get :render_hello_world_from_variable
    assert_equal "304 Not Modified", @response.headers['Status']
    assert @response.body.empty?
  end

  def test_render_against_etag_request_should_200_when_no_match
    @request.headers["HTTP_IF_NONE_MATCH"] = etag_for("hello somewhere else")
    get :render_hello_world_from_variable
    assert_equal "200 OK", @response.headers['Status']
    assert !@response.body.empty?
  end

  def test_render_with_etag
    get :render_hello_world_from_variable
    expected_etag = etag_for('hello david')
    assert_equal expected_etag, @response.headers['ETag']

    @request.headers["HTTP_IF_NONE_MATCH"] = expected_etag
    get :render_hello_world_from_variable
    assert_equal "304 Not Modified", @response.headers['Status']

    @request.headers["HTTP_IF_NONE_MATCH"] = "\"diftag\""
    get :render_hello_world_from_variable
    assert_equal "200 OK", @response.headers['Status']
  end

  def render_with_404_shouldnt_have_etag
    get :render_custom_code
    assert_nil @response.headers['ETag']
  end

  def test_etag_should_not_be_changed_when_already_set
    expected_etag = etag_for("hello somewhere else")
    @response.headers["ETag"] = expected_etag
    get :render_hello_world_from_variable
    assert_equal expected_etag, @response.headers['ETag']
  end

  def test_etag_should_govern_renders_with_layouts_too
    get :builder_layout_test
    assert_equal "<wrapper>\n<html>\n  <p>Hello </p>\n<p>This is grand!</p>\n</html>\n</wrapper>\n", @response.body
    assert_equal etag_for("<wrapper>\n<html>\n  <p>Hello </p>\n<p>This is grand!</p>\n</html>\n</wrapper>\n"), @response.headers['ETag']
  end

  def test_should_render_formatted_template
    get :formatted_html_erb
    assert_equal 'formatted html erb', @response.body
  end
  
  def test_should_render_formatted_xml_erb_template
    get :formatted_xml_erb, :format => :xml
    assert_equal '<test>passed formatted xml erb</test>', @response.body
  end
  
  def test_should_render_formatted_html_erb_template
    get :formatted_xml_erb
    assert_equal '<test>passed formatted html erb</test>', @response.body
  end
  
  def test_should_render_formatted_html_erb_template_with_faulty_accepts_header
    @request.env["HTTP_ACCEPT"] = "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, appliction/x-shockwave-flash, */*"
    get :formatted_xml_erb
    assert_equal '<test>passed formatted html erb</test>', @response.body
  end

  def test_should_render_html_formatted_partial
    get :partial
    assert_equal 'partial html', @response.body
  end

  def test_should_render_html_partial_with_dot
    get :partial_dot_html
    assert_equal 'partial html', @response.body
  end

  def test_should_render_html_formatted_partial_with_rjs
    xhr :get, :partial_as_rjs
    assert_equal %(Element.replace("foo", "partial html");), @response.body
  end

  def test_should_render_html_formatted_partial_with_rjs_and_js_format
    xhr :get, :respond_to_partial_as_rjs
    assert_equal %(Element.replace("foo", "partial html");), @response.body
  end

  def test_should_render_js_partial
    xhr :get, :partial, :format => 'js'
    assert_equal 'partial js', @response.body
  end

  def test_should_render_with_alternate_default_render
    xhr :get, :render_alternate_default
    assert_equal %(Element.replace("foo", "partial html");), @response.body
  end

  def test_should_render_xml_but_keep_custom_content_type
    get :render_xml_with_custom_content_type
    assert_equal "application/atomsvc+xml", @response.content_type
  end

  protected
  
    def etag_for(text)
      %("#{Digest::MD5.hexdigest(text)}")
    end
end