aboutsummaryrefslogtreecommitdiffstats
path: root/actionpack/lib/action_controller/test_process.rb
blob: b1eb9e38ef3a1752af9b8e709723f37146f79588 (plain) (blame)
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
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
require 'action_controller/assertions'

module ActionController #:nodoc:
  class Base
    # Process a test request called with a +TestRequest+ object.
    def self.process_test(request)
      new.process_test(request)
    end

    def process_test(request) #:nodoc:
      process(request, TestResponse.new)
    end

    def process_with_test(*args)
      returning process_without_test(*args) do
        add_variables_to_assigns
      end
    end

    alias_method_chain :process, :test
  end

  class TestRequest < AbstractRequest #:nodoc:
    attr_accessor :cookies, :session_options
    attr_accessor :query_parameters, :request_parameters, :path, :session, :env
    attr_accessor :host

    def initialize(query_parameters = nil, request_parameters = nil, session = nil)
      @query_parameters   = query_parameters || {}
      @request_parameters = request_parameters || {}
      @session            = session || TestSession.new

      initialize_containers
      initialize_default_values

      super()
    end

    def reset_session
      @session = TestSession.new
    end

    def raw_post
      if raw_post = env['RAW_POST_DATA']
        raw_post
      else
        params = self.request_parameters.dup
        %w(controller action only_path).each do |k|
          params.delete(k)
          params.delete(k.to_sym)
        end
    
        params.map { |k,v| [ CGI.escape(k.to_s), CGI.escape(v.to_s) ].join('=') }.sort.join('&')
      end
    end

    def port=(number)
      @env["SERVER_PORT"] = number.to_i
      @port_as_int = nil
    end

    def action=(action_name)
      @query_parameters.update({ "action" => action_name })
      @parameters = nil
    end

    # Used to check AbstractRequest's request_uri functionality.
    # Disables the use of @path and @request_uri so superclass can handle those.
    def set_REQUEST_URI(value)
      @env["REQUEST_URI"] = value
      @request_uri = nil
      @path = nil
    end

    def request_uri=(uri)
      @request_uri = uri
      @path = uri.split("?").first
    end

    def accept=(mime_types)
      @env["HTTP_ACCEPT"] = Array(mime_types).collect { |mime_types| mime_types.to_s }.join(",")
    end

    def remote_addr=(addr)
      @env['REMOTE_ADDR'] = addr
    end

    def remote_addr
      @env['REMOTE_ADDR']
    end

    def request_uri
      @request_uri || super
    end

    def path
      @path || super
    end

    def assign_parameters(controller_path, action, parameters)
      parameters = parameters.symbolize_keys.merge(:controller => controller_path, :action => action)
      extra_keys = ActionController::Routing::Routes.extra_keys(parameters)
      non_path_parameters = get? ? query_parameters : request_parameters
      parameters.each do |key, value|
        if value.is_a? Fixnum
          value = value.to_s
        elsif value.is_a? Array
          value = ActionController::Routing::PathSegment::Result.new(value)
        end

        if extra_keys.include?(key.to_sym)
          non_path_parameters[key] = value
        else
          path_parameters[key.to_s] = value
        end
      end
      @parameters = nil # reset TestRequest#parameters to use the new path_parameters
    end                        
    
    def recycle!
      self.request_parameters = {}
      self.query_parameters   = {}
      self.path_parameters    = {}
      @request_method, @accepts, @content_type = nil, nil, nil
    end    

    def referer
      @env["HTTP_REFERER"]
    end

    private
      def initialize_containers
        @env, @cookies = {}, {}
      end

      def initialize_default_values
        @host                    = "test.host"
        @request_uri             = "/"
        self.remote_addr         = "0.0.0.0"        
        @env["SERVER_PORT"]      = 80
        @env['REQUEST_METHOD']   = "GET"
      end
  end

  # A refactoring of TestResponse to allow the same behavior to be applied
  # to the "real" CgiResponse class in integration tests.
  module TestResponseBehavior #:nodoc:
    # the response code of the request
    def response_code
      headers['Status'][0,3].to_i rescue 0
    end
    
    # returns a String to ensure compatibility with Net::HTTPResponse
    def code
      headers['Status'].to_s.split(' ')[0]
    end

    def message
      headers['Status'].to_s.split(' ',2)[1]
    end

    # was the response successful?
    def success?
      response_code == 200
    end

    # was the URL not found?
    def missing?
      response_code == 404
    end

    # were we redirected?
    def redirect?
      (300..399).include?(response_code)
    end

    # was there a server-side error?
    def error?
      (500..599).include?(response_code)
    end

    alias_method :server_error?, :error?

    # returns the redirection location or nil
    def redirect_url
      headers['Location']
    end

    # does the redirect location match this regexp pattern?
    def redirect_url_match?( pattern )
      return false if redirect_url.nil?
      p = Regexp.new(pattern) if pattern.class == String
      p = pattern if pattern.class == Regexp
      return false if p.nil?
      p.match(redirect_url) != nil
    end

    # returns the template path of the file which was used to
    # render this response (or nil) 
    def rendered_file(with_controller=false)
      unless template.first_render.nil?
        unless with_controller
          template.first_render
        else
          template.first_render.split('/').last || template.first_render
        end
      end
    end

    # was this template rendered by a file?
    def rendered_with_file?
      !rendered_file.nil?
    end

    # a shortcut to the flash (or an empty hash if no flash.. hey! that rhymes!)
    def flash
      session['flash'] || {}
    end

    # do we have a flash? 
    def has_flash?
      !session['flash'].empty?
    end

    # do we have a flash that has contents?
    def has_flash_with_contents?
      !flash.empty?
    end

    # does the specified flash object exist?
    def has_flash_object?(name=nil)
      !flash[name].nil?
    end

    # does the specified object exist in the session?
    def has_session_object?(name=nil)
      !session[name].nil?
    end

    # a shortcut to the template.assigns
    def template_objects
      template.assigns || {}
    end

    # does the specified template object exist? 
    def has_template_object?(name=nil)
      !template_objects[name].nil?      
    end

    # Returns the response cookies, converted to a Hash of (name => CGI::Cookie) pairs
    # Example:
    # 
    # assert_equal ['AuthorOfNewPage'], r.cookies['author'].value
    def cookies
      headers['cookie'].inject({}) { |hash, cookie| hash[cookie.name] = cookie; hash }
    end

    # Returns binary content (downloadable file), converted to a String
    def binary_content
      raise "Response body is not a Proc: #{body.inspect}" unless body.kind_of?(Proc)
      require 'stringio'

      sio = StringIO.new

      begin 
        $stdout = sio
        body.call
      ensure
        $stdout = STDOUT
      end

      sio.rewind
      sio.read
    end
  end

  class TestResponse < AbstractResponse #:nodoc:
    include TestResponseBehavior
  end

  class TestSession #:nodoc:
    attr_accessor :session_id

    def initialize(attributes = nil)
      @session_id = ''
      @attributes = attributes
      @saved_attributes = nil
    end

    def data
      @attributes ||= @saved_attributes || {}
    end

    def [](key)
      data[key]
    end

    def []=(key, value)
      data[key] = value
    end

    def update
      @saved_attributes = @attributes
    end

    def delete
      @attributes = nil
    end

    def close
      update
      delete
    end
  end

  # Essentially generates a modified Tempfile object similar to the object
  # you'd get from the standard library CGI module in a multipart
  # request. This means you can use an ActionController::TestUploadedFile
  # object in the params of a test request in order to simulate
  # a file upload.
  #
  # Usage example, within a functional test:
  #   post :change_avatar, :avatar => ActionController::TestUploadedFile.new(Test::Unit::TestCase.fixture_path + '/files/spongebob.png', 'image/png')
  require 'tempfile'
  class TestUploadedFile
    # The filename, *not* including the path, of the "uploaded" file
    attr_reader :original_filename

    # The content type of the "uploaded" file
    attr_reader :content_type

    def initialize(path, content_type = Mime::TEXT)
      raise "#{path} file does not exist" unless File.exist?(path)
      @content_type = content_type
      @original_filename = path.sub(/^.*#{File::SEPARATOR}([^#{File::SEPARATOR}]+)$/) { $1 }
      @tempfile = Tempfile.new(@original_filename)
      FileUtils.copy_file(path, @tempfile.path)
    end

    def path #:nodoc:
      @tempfile.path
    end

    alias local_path path

    def method_missing(method_name, *args, &block) #:nodoc:
      @tempfile.send(method_name, *args, &block)
    end
  end

  module TestProcess
    def self.included(base)
      # execute the request simulating a specific http method and set/volley the response
      %w( get post put delete head ).each do |method|
        base.class_eval <<-EOV, __FILE__, __LINE__
          def #{method}(action, parameters = nil, session = nil, flash = nil)
            @request.env['REQUEST_METHOD'] = "#{method.upcase}" if defined?(@request)
            process(action, parameters, session, flash)
          end
        EOV
      end
    end

    # execute the request and set/volley the response
    def process(action, parameters = nil, session = nil, flash = nil)
      # Sanity check for required instance variables so we can give an
      # understandable error message.
      %w(@controller @request @response).each do |iv_name|
        if !instance_variables.include?(iv_name) || instance_variable_get(iv_name).nil?
          raise "#{iv_name} is nil: make sure you set it in your test's setup method."
        end
      end

      @request.recycle!

      @html_document = nil
      @request.env['REQUEST_METHOD'] ||= "GET"
      @request.action = action.to_s

      parameters ||= {}
      @request.assign_parameters(@controller.class.controller_path, action.to_s, parameters)

      @request.session = ActionController::TestSession.new(session) unless session.nil?
      @request.session["flash"] = ActionController::Flash::FlashHash.new.update(flash) if flash
      build_request_uri(action, parameters)
      @controller.process(@request, @response)
    end

    def xml_http_request(request_method, action, parameters = nil, session = nil, flash = nil)
      @request.env['HTTP_X_REQUESTED_WITH'] = 'XMLHttpRequest'
      @request.env['HTTP_ACCEPT'] = 'text/javascript, text/html, application/xml, text/xml, */*'
      returning self.send(request_method, action, parameters, session, flash) do
        @request.env.delete 'HTTP_X_REQUESTED_WITH'
        @request.env.delete 'HTTP_ACCEPT'
      end
    end
    alias xhr :xml_http_request

    def follow_redirect
      redirected_controller = @response.redirected_to[:controller]
      if redirected_controller && redirected_controller != @controller.controller_name
        raise "Can't follow redirects outside of current controller (from #{@controller.controller_name} to #{redirected_controller})"
      end

      get(@response.redirected_to.delete(:action), @response.redirected_to.stringify_keys)
    end

    def assigns(key = nil) 
      if key.nil? 
        @response.template.assigns 
      else 
        @response.template.assigns[key.to_s] 
      end 
    end 

    def session
      @response.session
    end

    def flash
      @response.flash
    end

    def cookies
      @response.cookies
    end

    def redirect_to_url
      @response.redirect_url
    end

    def build_request_uri(action, parameters)
      unless @request.env['REQUEST_URI']
        options = @controller.send(:rewrite_options, parameters)
        options.update(:only_path => true, :action => action)

        url = ActionController::UrlRewriter.new(@request, parameters)
        @request.set_REQUEST_URI(url.rewrite(options))
      end
    end

    def html_document
      @html_document ||= HTML::Document.new(@response.body)
    end

    def find_tag(conditions)
      html_document.find(conditions)
    end

    def find_all_tag(conditions)
      html_document.find_all(conditions)
    end

    def method_missing(selector, *args)
      return @controller.send(selector, *args) if ActionController::Routing::Routes.named_routes.helpers.include?(selector)
      return super
    end
    
    # Shortcut for ActionController::TestUploadedFile.new(Test::Unit::TestCase.fixture_path + path, type). Example:
    #   post :change_avatar, :avatar => fixture_file_upload('/files/spongebob.png', 'image/png')
    def fixture_file_upload(path, mime_type = nil)
      ActionController::TestUploadedFile.new(
        Test::Unit::TestCase.respond_to?(:fixture_path) ? Test::Unit::TestCase.fixture_path + path : path, 
        mime_type
      )
    end

    # A helper to make it easier to test different route configurations.
    # This method temporarily replaces ActionController::Routing::Routes
    # with a new RouteSet instance. 
    #
    # The new instance is yielded to the passed block. Typically the block
    # will create some routes using map.draw { map.connect ... }:
    #
    #  with_routing do |set|
    #    set.draw do |map|
    #      map.connect ':controller/:action/:id'
    #        assert_equal(
    #          ['/content/10/show', {}],
    #          map.generate(:controller => 'content', :id => 10, :action => 'show')
    #      end
    #    end
    #  end
    #
    def with_routing
      real_routes = ActionController::Routing::Routes
      ActionController::Routing.send :remove_const, :Routes

      temporary_routes = ActionController::Routing::RouteSet.new
      ActionController::Routing.send :const_set, :Routes, temporary_routes
  
      yield temporary_routes
    ensure
      if ActionController::Routing.const_defined? :Routes
        ActionController::Routing.send(:remove_const, :Routes) 
      end
      ActionController::Routing.const_set(:Routes, real_routes) if real_routes
    end
  end
end

module Test
  module Unit
    class TestCase #:nodoc:
      include ActionController::TestProcess
    end
  end
end