aboutsummaryrefslogtreecommitdiffstats
path: root/railties/test/application/mailer_previews_test.rb
blob: e462d2c15e3b3f798b6288d81c6f92ac8c58f575 (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
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
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
require 'isolation/abstract_unit'
require 'rack/test'
require 'base64'

module ApplicationTests
  class MailerPreviewsTest < ActiveSupport::TestCase
    include ActiveSupport::Testing::Isolation
    include Rack::Test::Methods

    def setup
      build_app
      boot_rails
    end

    def teardown
      teardown_app
    end

    test "/rails/mailers is accessible in development" do
      app("development")
      get "/rails/mailers"
      assert_equal 200, last_response.status
    end

    test "/rails/mailers is not accessible in production" do
      app("production")
      get "/rails/mailers"
      assert_equal 404, last_response.status
    end

    test "/rails/mailers is accessible with correct configuraiton" do
      add_to_config "config.action_mailer.show_previews = true"
      app("production")
      get "/rails/mailers"
      assert_equal 200, last_response.status
    end

    test "/rails/mailers is not accessible with show_previews = false" do
      add_to_config "config.action_mailer.show_previews = false"
      app("development")
      get "/rails/mailers"
      assert_equal 404, last_response.status
    end

    test "/rails/mailers is accessible with globbing route present" do
      app_file "config/routes.rb", <<-RUBY
        Rails.application.routes.draw do
          get '*foo', to: 'foo#index'
        end
      RUBY
      app("development")
      get "/rails/mailers"
      assert_equal 200, last_response.status
    end

    test "mailer previews are loaded from the default preview_path" do
      mailer 'notifier', <<-RUBY
        class Notifier < ActionMailer::Base
          default from: "from@example.com"

          def foo
            mail to: "to@example.org"
          end
        end
      RUBY

      text_template 'notifier/foo', <<-RUBY
        Hello, World!
      RUBY

      mailer_preview 'notifier', <<-RUBY
        class NotifierPreview < ActionMailer::Preview
          def foo
            Notifier.foo
          end
        end
      RUBY

      app('development')

      get "/rails/mailers"
      assert_match '<h3><a href="/rails/mailers/notifier">Notifier</a></h3>', last_response.body
      assert_match '<li><a href="/rails/mailers/notifier/foo">foo</a></li>', last_response.body
    end

    test "mailer previews are loaded from a custom preview_path" do
      add_to_config "config.action_mailer.preview_path = '#{app_path}/lib/mailer_previews'"

      mailer 'notifier', <<-RUBY
        class Notifier < ActionMailer::Base
          default from: "from@example.com"

          def foo
            mail to: "to@example.org"
          end
        end
      RUBY

      text_template 'notifier/foo', <<-RUBY
        Hello, World!
      RUBY

      app_file 'lib/mailer_previews/notifier_preview.rb', <<-RUBY
        class NotifierPreview < ActionMailer::Preview
          def foo
            Notifier.foo
          end
        end
      RUBY

      app('development')

      get "/rails/mailers"
      assert_match '<h3><a href="/rails/mailers/notifier">Notifier</a></h3>', last_response.body
      assert_match '<li><a href="/rails/mailers/notifier/foo">foo</a></li>', last_response.body
    end

    test "mailer previews are reloaded across requests" do
      app('development')

      get "/rails/mailers"
      assert_no_match '<h3><a href="/rails/mailers/notifier">Notifier</a></h3>', last_response.body

      mailer 'notifier', <<-RUBY
        class Notifier < ActionMailer::Base
          default from: "from@example.com"

          def foo
            mail to: "to@example.org"
          end
        end
      RUBY

      text_template 'notifier/foo', <<-RUBY
        Hello, World!
      RUBY

      mailer_preview 'notifier', <<-RUBY
        class NotifierPreview < ActionMailer::Preview
          def foo
            Notifier.foo
          end
        end
      RUBY

      get "/rails/mailers"
      assert_match '<h3><a href="/rails/mailers/notifier">Notifier</a></h3>', last_response.body

      remove_file 'test/mailers/previews/notifier_preview.rb'
      sleep(1)

      get "/rails/mailers"
      assert_no_match '<h3><a href="/rails/mailers/notifier">Notifier</a></h3>', last_response.body
    end

    test "mailer preview actions are added and removed" do
      mailer 'notifier', <<-RUBY
        class Notifier < ActionMailer::Base
          default from: "from@example.com"

          def foo
            mail to: "to@example.org"
          end
        end
      RUBY

      text_template 'notifier/foo', <<-RUBY
        Hello, World!
      RUBY

      mailer_preview 'notifier', <<-RUBY
        class NotifierPreview < ActionMailer::Preview
          def foo
            Notifier.foo
          end
        end
      RUBY

      app('development')

      get "/rails/mailers"
      assert_match '<h3><a href="/rails/mailers/notifier">Notifier</a></h3>', last_response.body
      assert_match '<li><a href="/rails/mailers/notifier/foo">foo</a></li>', last_response.body
      assert_no_match '<li><a href="/rails/mailers/notifier/bar">bar</a></li>', last_response.body

      mailer 'notifier', <<-RUBY
        class Notifier < ActionMailer::Base
          default from: "from@example.com"

          def foo
            mail to: "to@example.org"
          end

          def bar
            mail to: "to@example.net"
          end
        end
      RUBY

      text_template 'notifier/foo', <<-RUBY
        Hello, World!
      RUBY

      text_template 'notifier/bar', <<-RUBY
        Goodbye, World!
      RUBY

      mailer_preview 'notifier', <<-RUBY
        class NotifierPreview < ActionMailer::Preview
          def foo
            Notifier.foo
          end

          def bar
            Notifier.bar
          end
        end
      RUBY

      sleep(1)

      get "/rails/mailers"
      assert_match '<h3><a href="/rails/mailers/notifier">Notifier</a></h3>', last_response.body
      assert_match '<li><a href="/rails/mailers/notifier/foo">foo</a></li>', last_response.body
      assert_match '<li><a href="/rails/mailers/notifier/bar">bar</a></li>', last_response.body

      mailer 'notifier', <<-RUBY
        class Notifier < ActionMailer::Base
          default from: "from@example.com"

          def foo
            mail to: "to@example.org"
          end
        end
      RUBY

      remove_file 'app/views/notifier/bar.text.erb'

      mailer_preview 'notifier', <<-RUBY
        class NotifierPreview < ActionMailer::Preview
          def foo
            Notifier.foo
          end
        end
      RUBY

      sleep(1)

      get "/rails/mailers"
      assert_match '<h3><a href="/rails/mailers/notifier">Notifier</a></h3>', last_response.body
      assert_match '<li><a href="/rails/mailers/notifier/foo">foo</a></li>', last_response.body
      assert_no_match '<li><a href="/rails/mailers/notifier/bar">bar</a></li>', last_response.body
    end

    test "mailer previews are reloaded from a custom preview_path" do
      add_to_config "config.action_mailer.preview_path = '#{app_path}/lib/mailer_previews'"

      app('development')

      get "/rails/mailers"
      assert_no_match '<h3><a href="/rails/mailers/notifier">Notifier</a></h3>', last_response.body

      mailer 'notifier', <<-RUBY
        class Notifier < ActionMailer::Base
          default from: "from@example.com"

          def foo
            mail to: "to@example.org"
          end
        end
      RUBY

      text_template 'notifier/foo', <<-RUBY
        Hello, World!
      RUBY

      app_file 'lib/mailer_previews/notifier_preview.rb', <<-RUBY
        class NotifierPreview < ActionMailer::Preview
          def foo
            Notifier.foo
          end
        end
      RUBY

      get "/rails/mailers"
      assert_match '<h3><a href="/rails/mailers/notifier">Notifier</a></h3>', last_response.body

      remove_file 'lib/mailer_previews/notifier_preview.rb'
      sleep(1)

      get "/rails/mailers"
      assert_no_match '<h3><a href="/rails/mailers/notifier">Notifier</a></h3>', last_response.body
    end

    test "mailer preview not found" do
      app('development')
      get "/rails/mailers/notifier"
      assert last_response.not_found?
      assert_match "Mailer preview &#39;notifier&#39; not found", last_response.body
    end

    test "mailer preview email not found" do
      mailer 'notifier', <<-RUBY
        class Notifier < ActionMailer::Base
          default from: "from@example.com"

          def foo
            mail to: "to@example.org"
          end
        end
      RUBY

      text_template 'notifier/foo', <<-RUBY
        Hello, World!
      RUBY

      mailer_preview 'notifier', <<-RUBY
        class NotifierPreview < ActionMailer::Preview
          def foo
            Notifier.foo
          end
        end
      RUBY

      app('development')

      get "/rails/mailers/notifier/bar"
      assert last_response.not_found?
      assert_match "Email &#39;bar&#39; not found in NotifierPreview", last_response.body
    end

    test "mailer preview NullMail" do
      mailer 'notifier', <<-RUBY
        class Notifier < ActionMailer::Base
          default from: "from@example.com"

          def foo
            # does not call +mail+
          end
        end
      RUBY

      mailer_preview 'notifier', <<-RUBY
        class NotifierPreview < ActionMailer::Preview
          def foo
            Notifier.foo
          end
        end
      RUBY

      app('development')

      get "/rails/mailers/notifier/foo"
      assert_match "You are trying to preview an email that does not have any content.", last_response.body
      assert_match "notifier#foo", last_response.body
    end

    test "mailer preview email part not found" do
      mailer 'notifier', <<-RUBY
        class Notifier < ActionMailer::Base
          default from: "from@example.com"

          def foo
            mail to: "to@example.org"
          end
        end
      RUBY

      text_template 'notifier/foo', <<-RUBY
        Hello, World!
      RUBY

      mailer_preview 'notifier', <<-RUBY
        class NotifierPreview < ActionMailer::Preview
          def foo
            Notifier.foo
          end
        end
      RUBY

      app('development')

      get "/rails/mailers/notifier/foo?part=text%2Fhtml"
      assert last_response.not_found?
      assert_match "Email part &#39;text/html&#39; not found in NotifierPreview#foo", last_response.body
    end

    test "message header uses full display names" do
      mailer 'notifier', <<-RUBY
        class Notifier < ActionMailer::Base
          default from: "Ruby on Rails <core@rubyonrails.org>"

          def foo
            mail to: "Andrew White <andyw@pixeltrix.co.uk>",
                 cc: "David Heinemeier Hansson <david@heinemeierhansson.com>"
          end
        end
      RUBY

      text_template 'notifier/foo', <<-RUBY
        Hello, World!
      RUBY

      mailer_preview 'notifier', <<-RUBY
        class NotifierPreview < ActionMailer::Preview
          def foo
            Notifier.foo
          end
        end
      RUBY

      app('development')

      get "/rails/mailers/notifier/foo"
      assert_equal 200, last_response.status
      assert_match "Ruby on Rails &lt;core@rubyonrails.org&gt;", last_response.body
      assert_match "Andrew White &lt;andyw@pixeltrix.co.uk&gt;", last_response.body
      assert_match "David Heinemeier Hansson &lt;david@heinemeierhansson.com&gt;", last_response.body
    end

    test "part menu selects correct option" do
      mailer 'notifier', <<-RUBY
        class Notifier < ActionMailer::Base
          default from: "from@example.com"

          def foo
            mail to: "to@example.org"
          end
        end
      RUBY

      html_template 'notifier/foo', <<-RUBY
        <p>Hello, World!</p>
      RUBY

      text_template 'notifier/foo', <<-RUBY
        Hello, World!
      RUBY

      mailer_preview 'notifier', <<-RUBY
        class NotifierPreview < ActionMailer::Preview
          def foo
            Notifier.foo
          end
        end
      RUBY

      app('development')

      get "/rails/mailers/notifier/foo.html"
      assert_equal 200, last_response.status
      assert_match '<option selected value="?part=text%2Fhtml">View as HTML email</option>', last_response.body

      get "/rails/mailers/notifier/foo.txt"
      assert_equal 200, last_response.status
      assert_match '<option selected value="?part=text%2Fplain">View as plain-text email</option>', last_response.body
    end

    test "mailer previews create correct links when loaded on a subdirectory" do
      mailer 'notifier', <<-RUBY
        class Notifier < ActionMailer::Base
          default from: "from@example.com"

          def foo
            mail to: "to@example.org"
          end
        end
      RUBY

      text_template 'notifier/foo', <<-RUBY
        Hello, World!
      RUBY

      mailer_preview 'notifier', <<-RUBY
        class NotifierPreview < ActionMailer::Preview
          def foo
            Notifier.foo
          end
        end
      RUBY

      app('development')

      get "/rails/mailers", {}, 'SCRIPT_NAME' => '/my_app'
      assert_match '<h3><a href="/my_app/rails/mailers/notifier">Notifier</a></h3>', last_response.body
      assert_match '<li><a href="/my_app/rails/mailers/notifier/foo">foo</a></li>', last_response.body
    end

    test "plain text mailer preview with attachment" do
      image_file "pixel.png", "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABAQMAAAAl21bKAAAAA1BMVEWzIioca/JlAAAACklEQVQI12NgAAAAAgAB4iG8MwAAAABJRU5ErkJgggo="

      mailer 'notifier', <<-RUBY
        class Notifier < ActionMailer::Base
          default from: "from@example.com"

          def foo
            attachments['pixel.png'] = File.read("#{app_path}/public/images/pixel.png", mode: 'rb')
            mail to: "to@example.org"
          end
        end
      RUBY

      text_template 'notifier/foo', <<-RUBY
        Hello, World!
      RUBY

      mailer_preview 'notifier', <<-RUBY
        class NotifierPreview < ActionMailer::Preview
          def foo
            Notifier.foo
          end
        end
      RUBY

      app('development')

      get "/rails/mailers/notifier/foo"
      assert_equal 200, last_response.status
      assert_match %r[<iframe seamless name="messageBody"], last_response.body

      get "/rails/mailers/notifier/foo?part=text/plain"
      assert_equal 200, last_response.status
      assert_match %r[Hello, World!], last_response.body
    end

    test "multipart mailer preview with attachment" do
      image_file "pixel.png", "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABAQMAAAAl21bKAAAAA1BMVEWzIioca/JlAAAACklEQVQI12NgAAAAAgAB4iG8MwAAAABJRU5ErkJgggo="

      mailer 'notifier', <<-RUBY
        class Notifier < ActionMailer::Base
          default from: "from@example.com"

          def foo
            attachments['pixel.png'] = File.read("#{app_path}/public/images/pixel.png", mode: 'rb')
            mail to: "to@example.org"
          end
        end
      RUBY

      text_template 'notifier/foo', <<-RUBY
        Hello, World!
      RUBY

      html_template 'notifier/foo', <<-RUBY
        <p>Hello, World!</p>
      RUBY

      mailer_preview 'notifier', <<-RUBY
        class NotifierPreview < ActionMailer::Preview
          def foo
            Notifier.foo
          end
        end
      RUBY

      app('development')

      get "/rails/mailers/notifier/foo"
      assert_equal 200, last_response.status
      assert_match %r[<iframe seamless name="messageBody"], last_response.body

      get "/rails/mailers/notifier/foo?part=text/plain"
      assert_equal 200, last_response.status
      assert_match %r[Hello, World!], last_response.body

      get "/rails/mailers/notifier/foo?part=text/html"
      assert_equal 200, last_response.status
      assert_match %r[<p>Hello, World!</p>], last_response.body
    end

    test "multipart mailer preview with inline attachment" do
      image_file "pixel.png", "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABAQMAAAAl21bKAAAAA1BMVEWzIioca/JlAAAACklEQVQI12NgAAAAAgAB4iG8MwAAAABJRU5ErkJgggo="

      mailer 'notifier', <<-RUBY
        class Notifier < ActionMailer::Base
          default from: "from@example.com"

          def foo
            attachments['pixel.png'] = File.read("#{app_path}/public/images/pixel.png", mode: 'rb')
            mail to: "to@example.org"
          end
        end
      RUBY

      text_template 'notifier/foo', <<-RUBY
        Hello, World!
      RUBY

      html_template 'notifier/foo', <<-RUBY
        <p>Hello, World!</p>
        <%= image_tag attachments['pixel.png'].url %>
      RUBY

      mailer_preview 'notifier', <<-RUBY
        class NotifierPreview < ActionMailer::Preview
          def foo
            Notifier.foo
          end
        end
      RUBY

      app('development')

      get "/rails/mailers/notifier/foo"
      assert_equal 200, last_response.status
      assert_match %r[<iframe seamless name="messageBody"], last_response.body

      get "/rails/mailers/notifier/foo?part=text/plain"
      assert_equal 200, last_response.status
      assert_match %r[Hello, World!], last_response.body

      get "/rails/mailers/notifier/foo?part=text/html"
      assert_equal 200, last_response.status
      assert_match %r[<p>Hello, World!</p>], last_response.body
      assert_match %r[src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABAQMAAAAl21bKAAAAA1BMVEWzIioca/JlAAAACklEQVQI12NgAAAAAgAB4iG8MwAAAABJRU5ErkJgggo="], last_response.body
    end

    test "multipart mailer preview with attached email" do
      mailer 'notifier', <<-RUBY
        class Notifier < ActionMailer::Base
          default from: "from@example.com"

          def foo
            message = ::Mail.new do
              from    'foo@example.com'
              to      'bar@example.com'
              subject 'Important Message'

              text_part do
                body 'Goodbye, World!'
              end

              html_part do
                body '<p>Goodbye, World!</p>'
              end
            end

            attachments['message.eml'] = message.to_s
            mail to: "to@example.org"
          end
        end
      RUBY

      text_template 'notifier/foo', <<-RUBY
        Hello, World!
      RUBY

      html_template 'notifier/foo', <<-RUBY
        <p>Hello, World!</p>
      RUBY

      mailer_preview 'notifier', <<-RUBY
        class NotifierPreview < ActionMailer::Preview
          def foo
            Notifier.foo
          end
        end
      RUBY

      app('development')

      get "/rails/mailers/notifier/foo"
      assert_equal 200, last_response.status
      assert_match %r[<iframe seamless name="messageBody"], last_response.body

      get "/rails/mailers/notifier/foo?part=text/plain"
      assert_equal 200, last_response.status
      assert_match %r[Hello, World!], last_response.body

      get "/rails/mailers/notifier/foo?part=text/html"
      assert_equal 200, last_response.status
      assert_match %r[<p>Hello, World!</p>], last_response.body
    end

    private
      def build_app
        super
        app_file "config/routes.rb", "Rails.application.routes.draw do; end"
      end

      def mailer(name, contents)
        app_file("app/mailers/#{name}.rb", contents)
      end

      def mailer_preview(name, contents)
        app_file("test/mailers/previews/#{name}_preview.rb", contents)
      end

      def html_template(name, contents)
        app_file("app/views/#{name}.html.erb", contents)
      end

      def text_template(name, contents)
        app_file("app/views/#{name}.text.erb", contents)
      end

      def image_file(name, contents)
        app_file("public/images/#{name}", Base64.strict_decode64(contents), 'wb')
      end
  end
end