File: render_test.rb

package info (click to toggle)
rails 2:4.1.8-1+deb8u4
  • links: PTS, VCS
  • area: main
  • in suites: jessie
  • size: 22,132 kB
  • ctags: 27,642
  • sloc: ruby: 172,886; sql: 43; yacc: 43; sh: 14; makefile: 12
file content (579 lines) | stat: -rw-r--r-- 24,740 bytes parent folder | download
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
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
# encoding: utf-8
require 'abstract_unit'
require 'controller/fake_models'

class TestController < ActionController::Base
end

module RenderTestCases
  def setup_view(paths)
    @assigns = { :secret => 'in the sauce' }
    @view = ActionView::Base.new(paths, @assigns)
    @controller_view = TestController.new.view_context

    # Reload and register danish language for testing
    I18n.reload!
    I18n.backend.store_translations 'da', {}
    I18n.backend.store_translations 'pt-BR', {}

    # Ensure original are still the same since we are reindexing view paths
    assert_equal ORIGINAL_LOCALES, I18n.available_locales.map {|l| l.to_s }.sort
  end

  def test_render_without_options
    e = assert_raises(ArgumentError) { @view.render() }
    assert_match(/You invoked render but did not give any of (.+) option./, e.message)
  end

  def test_render_file
    assert_equal "Hello world!", @view.render(:file => "test/hello_world")
  end

  # Test if :formats, :locale etc. options are passed correctly to the resolvers.
  def test_render_file_with_format
    assert_match "<h1>No Comment</h1>", @view.render(:file => "comments/empty", :formats => [:html])
    assert_match "<error>No Comment</error>", @view.render(:file => "comments/empty", :formats => [:xml])
    assert_match "<error>No Comment</error>", @view.render(:file => "comments/empty", :formats => :xml)
  end

  def test_render_template_with_format
    assert_match "<h1>No Comment</h1>", @view.render(:template => "comments/empty", :formats => [:html])
    assert_match "<error>No Comment</error>", @view.render(:template => "comments/empty", :formats => [:xml])
  end

  def test_rendered_format_without_format
    @view.render(:inline => "test")
    assert_equal :html, @view.lookup_context.rendered_format
  end

  def test_render_partial_implicitly_use_format_of_the_rendered_template
    @view.lookup_context.formats = [:json]
    assert_equal "Hello world", @view.render(:template => "test/one", :formats => [:html])
  end

  def test_render_partial_implicitly_use_format_of_the_rendered_partial
    @view.lookup_context.formats = [:html]
    assert_equal "Third level", @view.render(:template => "test/html_template")
  end

  def test_render_partial_use_last_prepended_format_for_partials_with_the_same_names
    @view.lookup_context.formats = [:html]
    assert_equal "\nHTML Template, but JSON partial", @view.render(:template => "test/change_priority")
  end

  def test_render_template_with_a_missing_partial_of_another_format
    @view.lookup_context.formats = [:html]
    assert_raise ActionView::Template::Error, "Missing partial /_missing with {:locale=>[:en], :formats=>[:json], :handlers=>[:erb, :builder]}" do
      @view.render(:template => "with_format", :formats => [:json])
    end
  end

  def test_render_file_with_locale
    assert_equal "<h1>Kein Kommentar</h1>", @view.render(:file => "comments/empty", :locale => [:de])
    assert_equal "<h1>Kein Kommentar</h1>", @view.render(:file => "comments/empty", :locale => :de)
  end

  def test_render_template_with_locale
    assert_equal "<h1>Kein Kommentar</h1>", @view.render(:template => "comments/empty", :locale => [:de])
  end

  def test_render_file_with_handlers
    assert_equal "<h1>No Comment</h1>\n", @view.render(:file => "comments/empty", :handlers => [:builder])
    assert_equal "<h1>No Comment</h1>\n", @view.render(:file => "comments/empty", :handlers => :builder)
  end

  def test_render_template_with_handlers
    assert_equal "<h1>No Comment</h1>\n", @view.render(:template => "comments/empty", :handlers => [:builder])
  end

  def test_render_raw_template_with_handlers
    assert_equal "<%= hello_world %>\n", @view.render(:template => "plain_text")
  end

  def test_render_raw_template_with_quotes
    assert_equal %q;Here are some characters: !@#$%^&*()-="'}{`; + "\n", @view.render(:template => "plain_text_with_characters")
  end

  def test_render_ruby_template_with_handlers
    assert_equal "Hello from Ruby code", @view.render(:template => "ruby_template")
  end

  def test_render_ruby_template_inline
    assert_equal '4', @view.render(:inline => "(2**2).to_s", :type => :ruby)
  end

  def test_render_file_with_localization_on_context_level
    old_locale, @view.locale = @view.locale, :da
    assert_equal "Hey verden", @view.render(:file => "test/hello_world")
  ensure
    @view.locale = old_locale
  end

  def test_render_file_with_dashed_locale
    old_locale, @view.locale = @view.locale, :"pt-BR"
    assert_equal "Ola mundo", @view.render(:file => "test/hello_world")
  ensure
    @view.locale = old_locale
  end

  def test_render_file_at_top_level
    assert_equal 'Elastica', @view.render(:file => '/shared')
  end

  def test_render_file_with_full_path
    template_path = File.join(File.dirname(__FILE__), '../fixtures/test/hello_world')
    assert_equal "Hello world!", @view.render(:file => template_path)
  end

  def test_render_file_with_instance_variables
    assert_equal "The secret is in the sauce\n", @view.render(:file => "test/render_file_with_ivar")
  end

  def test_render_file_with_locals
    locals = { :secret => 'in the sauce' }
    assert_equal "The secret is in the sauce\n", @view.render(:file => "test/render_file_with_locals", :locals => locals)
  end

  def test_render_file_not_using_full_path_with_dot_in_path
    assert_equal "The secret is in the sauce\n", @view.render(:file => "test/dot.directory/render_file_with_ivar")
  end

  def test_render_partial_from_default
    assert_equal "only partial", @view.render("test/partial_only")
  end

  def test_render_outside_path
    assert File.exist?(File.join(File.dirname(__FILE__), '../../test/abstract_unit.rb'))
    assert_raises ActionView::MissingTemplate do
      @view.render(:template => "../\\../test/abstract_unit.rb")
    end
  end

  def test_render_with_strong_parameters
    params = { :inline => '<%= RUBY_VERSION %>' }
    def params.permitted?
      false
    end
    e = assert_raises ArgumentError do
      @view.render(params)
    end
    assert_equal "render parameters are not permitted", e.message
  end

  def test_render_with_permitted_strong_parameters
    params = { inline: "<%= 'hello' %>" }
    def params.permitted?
      true
    end
    assert_equal 'hello', @view.render(params)
  end

  def test_render_partial
    assert_equal "only partial", @view.render(:partial => "test/partial_only")
  end

  def test_render_partial_with_format
    assert_equal 'partial html', @view.render(:partial => 'test/partial')
  end

  def test_render_partial_with_selected_format
    assert_equal 'partial html', @view.render(:partial => 'test/partial', :formats => :html)
    assert_equal 'partial js', @view.render(:partial => 'test/partial', :formats => [:js])
  end

  def test_render_partial_at_top_level
    # file fixtures/_top_level_partial_only (not fixtures/test)
    assert_equal 'top level partial', @view.render(:partial => '/top_level_partial_only')
  end

  def test_render_partial_with_format_at_top_level
    # file fixtures/_top_level_partial.html (not fixtures/test, with format extension)
    assert_equal 'top level partial html', @view.render(:partial => '/top_level_partial')
  end

  def test_render_partial_with_locals
    assert_equal "5", @view.render(:partial => "test/counter", :locals => { :counter_counter => 5 })
  end

  def test_render_partial_with_locals_from_default
    assert_equal "only partial", @view.render("test/partial_only", :counter_counter => 5)
  end

  def test_render_partial_with_invalid_name
    e = assert_raises(ArgumentError) { @view.render(:partial => "test/200") }
    assert_equal "The partial name (test/200) is not a valid Ruby identifier; " +
      "make sure your partial name starts with a lowercase letter or underscore, " +
      "and is followed by any combination of letters, numbers and underscores.", e.message
  end

  def test_render_partial_with_missing_filename
    e = assert_raises(ArgumentError) { @view.render(:partial => "test/") }
    assert_equal "The partial name (test/) is not a valid Ruby identifier; " +
      "make sure your partial name starts with a lowercase letter or underscore, " +
      "and is followed by any combination of letters, numbers and underscores.", e.message
  end

  def test_render_partial_with_incompatible_object
    e = assert_raises(ArgumentError) { @view.render(:partial => nil) }
    assert_equal "'#{nil.inspect}' is not an ActiveModel-compatible object. It must implement :to_partial_path.", e.message
  end

  def test_render_partial_with_hyphen
    e = assert_raises(ArgumentError) { @view.render(:partial => "test/a-in") }
    assert_equal "The partial name (test/a-in) is not a valid Ruby identifier; " +
      "make sure your partial name starts with a lowercase letter or underscore, " +
      "and is followed by any combination of letters, numbers and underscores.", e.message
  end

  def test_render_partial_with_errors
    e = assert_raises(ActionView::Template::Error) { @view.render(:partial => "test/raise") }
    assert_match %r!method.*doesnt_exist!, e.message
    assert_equal "", e.sub_template_message
    assert_equal "1", e.line_number
    assert_equal "1: <%= doesnt_exist %>", e.annoted_source_code.strip
    assert_equal File.expand_path("#{FIXTURE_LOAD_PATH}/test/_raise.html.erb"), e.file_name
  end

  def test_render_error_indentation
    e = assert_raises(ActionView::Template::Error) { @view.render(:partial => "test/raise_indentation") }
    error_lines = e.annoted_source_code.split("\n")
    assert_match %r!error\shere!, e.message
    assert_equal "11", e.line_number
    assert_equal "     9: <p>Ninth paragraph</p>", error_lines.second
    assert_equal "    10: <p>Tenth paragraph</p>", error_lines.third
  end

  def test_render_sub_template_with_errors
    e = assert_raises(ActionView::Template::Error) { @view.render(:template => "test/sub_template_raise") }
    assert_match %r!method.*doesnt_exist!, e.message
    assert_equal "Trace of template inclusion: #{File.expand_path("#{FIXTURE_LOAD_PATH}/test/sub_template_raise.html.erb")}", e.sub_template_message
    assert_equal "1", e.line_number
    assert_equal File.expand_path("#{FIXTURE_LOAD_PATH}/test/_raise.html.erb"), e.file_name
  end

  def test_render_file_with_errors
    e = assert_raises(ActionView::Template::Error) { @view.render(:file => File.expand_path("test/_raise", FIXTURE_LOAD_PATH)) }
    assert_match %r!method.*doesnt_exist!, e.message
    assert_equal "", e.sub_template_message
    assert_equal "1", e.line_number
    assert_equal "1: <%= doesnt_exist %>", e.annoted_source_code.strip
    assert_equal File.expand_path("#{FIXTURE_LOAD_PATH}/test/_raise.html.erb"), e.file_name
  end

  def test_render_object
    assert_equal "Hello: david", @view.render(:partial => "test/customer", :object => Customer.new("david"))
  end

  def test_render_object_with_array
    assert_equal "[1, 2, 3]", @view.render(:partial => "test/object_inspector", :object => [1, 2, 3])
  end

  def test_render_partial_collection
    assert_equal "Hello: davidHello: mary", @view.render(:partial => "test/customer", :collection => [ Customer.new("david"), Customer.new("mary") ])
  end

  def test_render_partial_collection_as_by_string
    assert_equal "david david davidmary mary mary",
      @view.render(:partial => "test/customer_with_var", :collection => [ Customer.new("david"), Customer.new("mary") ], :as => 'customer')
  end

  def test_render_partial_collection_as_by_symbol
    assert_equal "david david davidmary mary mary",
      @view.render(:partial => "test/customer_with_var", :collection => [ Customer.new("david"), Customer.new("mary") ], :as => :customer)
  end

  def test_render_partial_collection_without_as
    assert_equal "local_inspector,local_inspector_counter",
      @view.render(:partial => "test/local_inspector", :collection => [ Customer.new("mary") ])
  end

  def test_render_partial_with_empty_collection_should_return_nil
    assert_nil @view.render(:partial => "test/customer", :collection => [])
  end

  def test_render_partial_with_nil_collection_should_return_nil
    assert_nil @view.render(:partial => "test/customer", :collection => nil)
  end

  def test_render_partial_with_nil_values_in_collection
    assert_equal "Hello: davidHello: Anonymous", @view.render(:partial => "test/customer", :collection => [ Customer.new("david"), nil ])
  end

  def test_render_partial_with_layout_using_collection_and_template
    assert_equal "<b>Hello: Amazon</b><b>Hello: Yahoo</b>", @view.render(:partial => "test/customer", :layout => 'test/b_layout_for_partial', :collection => [ Customer.new("Amazon"), Customer.new("Yahoo") ])
  end

  def test_render_partial_with_layout_using_collection_and_template_makes_current_item_available_in_layout
    assert_equal '<b class="amazon">Hello: Amazon</b><b class="yahoo">Hello: Yahoo</b>',
      @view.render(:partial => "test/customer", :layout => 'test/b_layout_for_partial_with_object', :collection => [ Customer.new("Amazon"), Customer.new("Yahoo") ])
  end

  def test_render_partial_with_layout_using_collection_and_template_makes_current_item_counter_available_in_layout
    assert_equal '<b data-counter="0">Hello: Amazon</b><b data-counter="1">Hello: Yahoo</b>',
      @view.render(:partial => "test/customer", :layout => 'test/b_layout_for_partial_with_object_counter', :collection => [ Customer.new("Amazon"), Customer.new("Yahoo") ])
  end

  def test_render_partial_with_layout_using_object_and_template_makes_object_available_in_layout
    assert_equal '<b class="amazon">Hello: Amazon</b>',
      @view.render(:partial => "test/customer", :layout => 'test/b_layout_for_partial_with_object', :object => Customer.new("Amazon"))
  end

  def test_render_partial_with_empty_array_should_return_nil
    assert_nil @view.render(:partial => [])
  end

  def test_render_partial_using_string
    assert_equal "Hello: Anonymous", @controller_view.render('customer')
  end

  def test_render_partial_with_locals_using_string
    assert_equal "Hola: david", @controller_view.render('customer_greeting', :greeting => 'Hola', :customer_greeting => Customer.new("david"))
  end

  def test_render_partial_with_object_uses_render_partial_path
    assert_equal "Hello: lifo",
      @controller_view.render(:partial => Customer.new("lifo"), :locals => {:greeting => "Hello"})
  end

  def test_render_partial_with_object_and_format_uses_render_partial_path
    assert_equal "<greeting>Hello</greeting><name>lifo</name>",
      @controller_view.render(:partial => Customer.new("lifo"), :formats => :xml, :locals => {:greeting => "Hello"})
  end

  def test_render_partial_using_object
    assert_equal "Hello: lifo",
      @controller_view.render(Customer.new("lifo"), :greeting => "Hello")
  end

  def test_render_partial_using_collection
    customers = [ Customer.new("Amazon"), Customer.new("Yahoo") ]
    assert_equal "Hello: AmazonHello: Yahoo",
      @controller_view.render(customers, :greeting => "Hello")
  end

  def test_render_partial_without_object_or_collection_does_not_generate_partial_name_local_variable
    exception = assert_raises ActionView::Template::Error do
      @controller_view.render("partial_name_local_variable")
    end
    assert_match "undefined local variable or method `partial_name_local_variable'", exception.message
  end

  # TODO: The reason for this test is unclear, improve documentation
  def test_render_partial_and_fallback_to_layout
    assert_equal "Before (Josh)\n\nAfter", @view.render(:partial => "test/layout_for_partial", :locals => { :name => "Josh" })
  end

  # TODO: The reason for this test is unclear, improve documentation
  def test_render_missing_xml_partial_and_raise_missing_template
    @view.formats = [:xml]
    assert_raises(ActionView::MissingTemplate) { @view.render(:partial => "test/layout_for_partial") }
  ensure
    @view.formats = nil
  end

  def test_render_layout_with_block_and_other_partial_inside
    render = @view.render(:layout => "test/layout_with_partial_and_yield") { "Yield!" }
    assert_equal "Before\npartial html\nYield!\nAfter\n", render
  end

  def test_render_inline
    assert_equal "Hello, World!", @view.render(:inline => "Hello, World!")
  end

  def test_render_inline_with_locals
    assert_equal "Hello, Josh!", @view.render(:inline => "Hello, <%= name %>!", :locals => { :name => "Josh" })
  end

  def test_render_fallbacks_to_erb_for_unknown_types
    assert_equal "Hello, World!", @view.render(:inline => "Hello, World!", :type => :bar)
  end

  CustomHandler = lambda do |template|
    "@output_buffer = ''\n" +
      "@output_buffer << 'source: #{template.source.inspect}'\n"
  end

  def test_render_inline_with_render_from_to_proc
    ActionView::Template.register_template_handler :ruby_handler, :source.to_proc
    assert_equal '3', @view.render(:inline => "(1 + 2).to_s", :type => :ruby_handler)
  end

  def test_render_inline_with_compilable_custom_type
    ActionView::Template.register_template_handler :foo, CustomHandler
    assert_equal 'source: "Hello, World!"', @view.render(:inline => "Hello, World!", :type => :foo)
  end

  def test_render_inline_with_locals_and_compilable_custom_type
    ActionView::Template.register_template_handler :foo, CustomHandler
    assert_equal 'source: "Hello, <%= name %>!"', @view.render(:inline => "Hello, <%= name %>!", :locals => { :name => "Josh" }, :type => :foo)
  end

  def test_render_knows_about_types_registered_when_extensions_are_checked_earlier_in_initialization
    ActionView::Template::Handlers.extensions
    ActionView::Template.register_template_handler :foo, CustomHandler
    assert ActionView::Template::Handlers.extensions.include?(:foo)
  end

  def test_render_ignores_templates_with_malformed_template_handlers
    ActiveSupport::Deprecation.silence do
      %w(malformed malformed.erb malformed.html.erb malformed.en.html.erb).each do |name|
        assert File.exist?(File.expand_path("#{FIXTURE_LOAD_PATH}/test/malformed/#{name}~")), "Malformed file (#{name}~) which should be ignored does not exists"
        assert_raises(ActionView::MissingTemplate) { @view.render(:file => "test/malformed/#{name}") }
      end
    end
  end

  def test_render_with_layout
    assert_equal %(<title></title>\nHello world!\n),
      @view.render(:file => "test/hello_world", :layout => "layouts/yield")
  end

  def test_render_with_layout_which_has_render_inline
    assert_equal %(welcome\nHello world!\n),
      @view.render(:file => "test/hello_world", :layout => "layouts/yield_with_render_inline_inside")
  end

  def test_render_with_layout_which_renders_another_partial
    assert_equal %(partial html\nHello world!\n),
      @view.render(:file => "test/hello_world", :layout => "layouts/yield_with_render_partial_inside")
  end

  def test_render_layout_with_block_and_yield
    assert_equal %(Content from block!\n),
      @view.render(:layout => "layouts/yield_only") { "Content from block!" }
  end

  def test_render_layout_with_block_and_yield_with_params
    assert_equal %(Yield! Content from block!\n),
      @view.render(:layout => "layouts/yield_with_params") { |param| "#{param} Content from block!" }
  end

  def test_render_layout_with_block_which_renders_another_partial_and_yields
    assert_equal %(partial html\nContent from block!\n),
      @view.render(:layout => "layouts/partial_and_yield") { "Content from block!" }
  end

  def test_render_partial_and_layout_without_block_with_locals
    assert_equal %(Before (Foo!)\npartial html\nAfter),
      @view.render(:partial => 'test/partial', :layout => 'test/layout_for_partial', :locals => { :name => 'Foo!'})
  end

  def test_render_partial_and_layout_without_block_with_locals_and_rendering_another_partial
    assert_equal %(Before (Foo!)\npartial html\npartial with partial\n\nAfter),
      @view.render(:partial => 'test/partial_with_partial', :layout => 'test/layout_for_partial', :locals => { :name => 'Foo!'})
  end

  def test_render_layout_with_a_nested_render_layout_call
    assert_equal %(Before (Foo!)\nBefore (Bar!)\npartial html\nAfter\npartial with layout\n\nAfter),
      @view.render(:partial => 'test/partial_with_layout', :layout => 'test/layout_for_partial', :locals => { :name => 'Foo!'})
  end

  def test_render_layout_with_a_nested_render_layout_call_using_block_with_render_partial
    assert_equal %(Before (Foo!)\nBefore (Bar!)\n\n  partial html\n\nAfterpartial with layout\n\nAfter),
      @view.render(:partial => 'test/partial_with_layout_block_partial', :layout => 'test/layout_for_partial', :locals => { :name => 'Foo!'})
  end

  def test_render_layout_with_a_nested_render_layout_call_using_block_with_render_content
    assert_equal %(Before (Foo!)\nBefore (Bar!)\n\n  Content from inside layout!\n\nAfterpartial with layout\n\nAfter),
      @view.render(:partial => 'test/partial_with_layout_block_content', :layout => 'test/layout_for_partial', :locals => { :name => 'Foo!'})
  end

  def test_render_partial_with_layout_raises_descriptive_error
    e = assert_raises(ActionView::MissingTemplate) { @view.render(partial: 'test/partial', layout: true) }
    assert_match "Missing partial /_true with", e.message
  end

  def test_render_with_nested_layout
    assert_equal %(<title>title</title>\n\n<div id="column">column</div>\n<div id="content">content</div>\n),
      @view.render(:file => "test/nested_layout", :layout => "layouts/yield")
  end

  def test_render_with_file_in_layout
    assert_equal %(\n<title>title</title>\n\n),
      @view.render(:file => "test/layout_render_file")
  end

  def test_render_layout_with_object
    assert_equal %(<title>David</title>),
      @view.render(:file => "test/layout_render_object")
  end

  def test_render_with_passing_couple_extensions_to_one_register_template_handler_function_call
    ActionView::Template.register_template_handler :foo1, :foo2, CustomHandler
    assert_equal @view.render(:inline => "Hello, World!", :type => :foo1), @view.render(:inline => "Hello, World!", :type => :foo2)
  end

  def test_render_throws_exception_when_no_extensions_passed_to_register_template_handler_function_call
    assert_raises(ArgumentError) { ActionView::Template.register_template_handler CustomHandler }
  end
end

class CachedViewRenderTest < ActiveSupport::TestCase
  include RenderTestCases

  # Ensure view path cache is primed
  def setup
    view_paths = ActionController::Base.view_paths
    assert_equal ActionView::OptimizedFileSystemResolver, view_paths.first.class
    setup_view(view_paths)
  end

  def teardown
    GC.start
  end
end

class LazyViewRenderTest < ActiveSupport::TestCase
  include RenderTestCases

  # Test the same thing as above, but make sure the view path
  # is not eager loaded
  def setup
    path = ActionView::FileSystemResolver.new(FIXTURE_LOAD_PATH)
    view_paths = ActionView::PathSet.new([path])
    assert_equal ActionView::FileSystemResolver.new(FIXTURE_LOAD_PATH), view_paths.first
    setup_view(view_paths)
  end

  def teardown
    GC.start
  end

  def test_render_utf8_template_with_magic_comment
    with_external_encoding Encoding::ASCII_8BIT do
      result = @view.render(:file => "test/utf8_magic", :formats => [:html], :layouts => "layouts/yield")
      assert_equal Encoding::UTF_8, result.encoding
      assert_equal "\nРусский \nтекст\n\nUTF-8\nUTF-8\nUTF-8\n", result
    end
  end

  def test_render_utf8_template_with_default_external_encoding
    with_external_encoding Encoding::UTF_8 do
      result = @view.render(:file => "test/utf8", :formats => [:html], :layouts => "layouts/yield")
      assert_equal Encoding::UTF_8, result.encoding
      assert_equal "Русский текст\n\nUTF-8\nUTF-8\nUTF-8\n", result
    end
  end

  def test_render_utf8_template_with_incompatible_external_encoding
    with_external_encoding Encoding::SHIFT_JIS do
      e = assert_raises(ActionView::Template::Error) { @view.render(:file => "test/utf8", :formats => [:html], :layouts => "layouts/yield") }
      assert_match 'Your template was not saved as valid Shift_JIS', e.original_exception.message
    end
  end

  def test_render_utf8_template_with_partial_with_incompatible_encoding
    with_external_encoding Encoding::SHIFT_JIS do
      e = assert_raises(ActionView::Template::Error) { @view.render(:file => "test/utf8_magic_with_bare_partial", :formats => [:html], :layouts => "layouts/yield") }
      assert_match 'Your template was not saved as valid Shift_JIS', e.original_exception.message
    end
  end

  def with_external_encoding(encoding)
    old = Encoding.default_external
    silence_warnings { Encoding.default_external = encoding }
    yield
  ensure
    silence_warnings { Encoding.default_external = old }
  end
end