boxyroom /vendor/plugins/state_machine/test/unit/guard_test.rb

Language Ruby Lines 909
MD5 Hash 5c74c9d851fe61b2742b9a6d640758be Estimated Cost $18,968 (why?)
Repository https://bitbucket.org/systech3/boxyroom.git View Raw File View Project SPDX
  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
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
require File.expand_path(File.dirname(__FILE__) + '/../test_helper')

class GuardTest < Test::Unit::TestCase
  def setup
    @guard = StateMachine::Guard.new(:from => :parked, :to => :idling)
  end
  
  def test_should_not_raise_exception_if_implicit_option_specified
    assert_nothing_raised { StateMachine::Guard.new(:invalid => :valid) }
  end
  
  def test_should_not_have_an_if_condition
    assert_nil @guard.if_condition
  end
  
  def test_should_not_have_an_unless_condition
    assert_nil @guard.unless_condition
  end
  
  def test_should_have_a_state_requirement
    assert_equal 1, @guard.state_requirements.length
  end
end

class GuardWithNoRequirementsTest < Test::Unit::TestCase
  def setup
    @object = Object.new
    @guard = StateMachine::Guard.new
  end
  
  def test_should_use_all_matcher_for_event_requirement
    assert_equal StateMachine::AllMatcher.instance, @guard.event_requirement
  end
  
  def test_should_use_all_matcher_for_from_state_requirement
    assert_equal StateMachine::AllMatcher.instance, @guard.state_requirements.first[:from]
  end
  
  def test_should_use_all_matcher_for_to_state_requirement
    assert_equal StateMachine::AllMatcher.instance, @guard.state_requirements.first[:to]
  end
  
  def test_should_match_nil_query
    assert @guard.matches?(@object, nil)
  end
  
  def test_should_match_empty_query
    assert @guard.matches?(@object, {})
  end
  
  def test_should_match_non_empty_query
    assert @guard.matches?(@object, :to => :idling, :from => :parked, :on => :ignite)
  end
  
  def test_should_include_all_requirements_in_match
    match = @guard.match(@object, nil)
    
    assert_equal @guard.state_requirements.first[:from], match[:from]
    assert_equal @guard.state_requirements.first[:to], match[:to]
    assert_equal @guard.event_requirement, match[:on]
  end
end

class GuardWithFromRequirementTest < Test::Unit::TestCase
  def setup
    @object = Object.new
    @guard = StateMachine::Guard.new(:from => :parked)
  end
  
  def test_should_use_a_whitelist_matcher
    assert_instance_of StateMachine::WhitelistMatcher, @guard.state_requirements.first[:from]
  end
  
  def test_should_match_if_not_specified
    assert @guard.matches?(@object, :to => :idling)
  end
  
  def test_should_match_if_included
    assert @guard.matches?(@object, :from => :parked)
  end
  
  def test_should_not_match_if_not_included
    assert !@guard.matches?(@object, :from => :idling)
  end
  
  def test_should_not_match_if_nil
    assert !@guard.matches?(@object, :from => nil)
  end
  
  def test_should_ignore_to
    assert @guard.matches?(@object, :from => :parked, :to => :idling)
  end
  
  def test_should_ignore_on
    assert @guard.matches?(@object, :from => :parked, :on => :ignite)
  end
  
  def test_should_be_included_in_known_states
    assert_equal [:parked], @guard.known_states
  end
  
  def test_should_include_requirement_in_match
    match = @guard.match(@object, :from => :parked)
    assert_equal @guard.state_requirements.first[:from], match[:from]
  end
end

class GuardWithMultipleFromRequirementsTest < Test::Unit::TestCase
  def setup
    @object = Object.new
    @guard = StateMachine::Guard.new(:from => [:idling, :parked])
  end
  
  def test_should_match_if_included
    assert @guard.matches?(@object, :from => :idling)
  end
  
  def test_should_not_match_if_not_included
    assert !@guard.matches?(@object, :from => :first_gear)
  end
  
  def test_should_be_included_in_known_states
    assert_equal [:idling, :parked], @guard.known_states
  end
end

class GuardWithToRequirementTest < Test::Unit::TestCase
  def setup
    @object = Object.new
    @guard = StateMachine::Guard.new(:to => :idling)
  end
  
  def test_should_use_a_whitelist_matcher
    assert_instance_of StateMachine::WhitelistMatcher, @guard.state_requirements.first[:to]
  end
  
  def test_should_match_if_not_specified
    assert @guard.matches?(@object, :from => :parked)
  end
  
  def test_should_match_if_included
    assert @guard.matches?(@object, :to => :idling)
  end
  
  def test_should_not_match_if_not_included
    assert !@guard.matches?(@object, :to => :parked)
  end
  
  def test_should_not_match_if_nil
    assert !@guard.matches?(@object, :to => nil)
  end
  
  def test_should_ignore_from
    assert @guard.matches?(@object, :to => :idling, :from => :parked)
  end
  
  def test_should_ignore_on
    assert @guard.matches?(@object, :to => :idling, :on => :ignite)
  end
  
  def test_should_be_included_in_known_states
    assert_equal [:idling], @guard.known_states
  end
  
  def test_should_include_requirement_in_match
    match = @guard.match(@object, :to => :idling)
    assert_equal @guard.state_requirements.first[:to], match[:to]
  end
end

class GuardWithMultipleToRequirementsTest < Test::Unit::TestCase
  def setup
    @object = Object.new
    @guard = StateMachine::Guard.new(:to => [:idling, :parked])
  end
  
  def test_should_match_if_included
    assert @guard.matches?(@object, :to => :idling)
  end
  
  def test_should_not_match_if_not_included
    assert !@guard.matches?(@object, :to => :first_gear)
  end
  
  def test_should_be_included_in_known_states
    assert_equal [:idling, :parked], @guard.known_states
  end
end

class GuardWithOnRequirementTest < Test::Unit::TestCase
  def setup
    @object = Object.new
    @guard = StateMachine::Guard.new(:on => :ignite)
  end
  
  def test_should_use_a_whitelist_matcher
    assert_instance_of StateMachine::WhitelistMatcher, @guard.event_requirement
  end
  
  def test_should_match_if_not_specified
    assert @guard.matches?(@object, :from => :parked)
  end
  
  def test_should_match_if_included
    assert @guard.matches?(@object, :on => :ignite)
  end
  
  def test_should_not_match_if_not_included
    assert !@guard.matches?(@object, :on => :park)
  end
  
  def test_should_not_match_if_nil
    assert !@guard.matches?(@object, :on => nil)
  end
  
  def test_should_ignore_to
    assert @guard.matches?(@object, :on => :ignite, :to => :parked)
  end
  
  def test_should_ignore_from
    assert @guard.matches?(@object, :on => :ignite, :from => :parked)
  end
  
  def test_should_not_be_included_in_known_states
    assert_equal [], @guard.known_states
  end
  
  def test_should_include_requirement_in_match
    match = @guard.match(@object, :on => :ignite)
    assert_equal @guard.event_requirement, match[:on]
  end
end

class GuardWithMultipleOnRequirementsTest < Test::Unit::TestCase
  def setup
    @object = Object.new
    @guard = StateMachine::Guard.new(:on => [:ignite, :park])
  end
  
  def test_should_match_if_included
    assert @guard.matches?(@object, :on => :ignite)
  end
  
  def test_should_not_match_if_not_included
    assert !@guard.matches?(@object, :on => :shift_up)
  end
end

class GuardWithExceptFromRequirementTest < Test::Unit::TestCase
  def setup
    @object = Object.new
    @guard = StateMachine::Guard.new(:except_from => :parked)
  end
  
  def test_should_use_a_blacklist_matcher
    assert_instance_of StateMachine::BlacklistMatcher, @guard.state_requirements.first[:from]
  end
  
  def test_should_match_if_not_included
    assert @guard.matches?(@object, :from => :idling)
  end
  
  def test_should_not_match_if_included
    assert !@guard.matches?(@object, :from => :parked)
  end
  
  def test_should_match_if_nil
    assert @guard.matches?(@object, :from => nil)
  end
  
  def test_should_ignore_to
    assert @guard.matches?(@object, :from => :idling, :to => :parked)
  end
  
  def test_should_ignore_on
    assert @guard.matches?(@object, :from => :idling, :on => :ignite)
  end
  
  def test_should_be_included_in_known_states
    assert_equal [:parked], @guard.known_states
  end
end

class GuardWithMultipleExceptFromRequirementsTest < Test::Unit::TestCase
  def setup
    @object = Object.new
    @guard = StateMachine::Guard.new(:except_from => [:idling, :parked])
  end
  
  def test_should_match_if_not_included
    assert @guard.matches?(@object, :from => :first_gear)
  end
  
  def test_should_not_match_if_included
    assert !@guard.matches?(@object, :from => :idling)
  end
  
  def test_should_be_included_in_known_states
    assert_equal [:idling, :parked], @guard.known_states
  end
end

class GuardWithExceptToRequirementTest < Test::Unit::TestCase
  def setup
    @object = Object.new
    @guard = StateMachine::Guard.new(:except_to => :idling)
  end
  
  def test_should_use_a_blacklist_matcher
    assert_instance_of StateMachine::BlacklistMatcher, @guard.state_requirements.first[:to]
  end
  
  def test_should_match_if_not_included
    assert @guard.matches?(@object, :to => :parked)
  end
  
  def test_should_not_match_if_included
    assert !@guard.matches?(@object, :to => :idling)
  end
  
  def test_should_match_if_nil
    assert @guard.matches?(@object, :to => nil)
  end
  
  def test_should_ignore_from
    assert @guard.matches?(@object, :to => :parked, :from => :idling)
  end
  
  def test_should_ignore_on
    assert @guard.matches?(@object, :to => :parked, :on => :ignite)
  end
  
  def test_should_be_included_in_known_states
    assert_equal [:idling], @guard.known_states
  end
end

class GuardWithMultipleExceptToRequirementsTest < Test::Unit::TestCase
  def setup
    @object = Object.new
    @guard = StateMachine::Guard.new(:except_to => [:idling, :parked])
  end
  
  def test_should_match_if_not_included
    assert @guard.matches?(@object, :to => :first_gear)
  end
  
  def test_should_not_match_if_included
    assert !@guard.matches?(@object, :to => :idling)
  end
  
  def test_should_be_included_in_known_states
    assert_equal [:idling, :parked], @guard.known_states
  end
end

class GuardWithExceptOnRequirementTest < Test::Unit::TestCase
  def setup
    @object = Object.new
    @guard = StateMachine::Guard.new(:except_on => :ignite)
  end
  
  def test_should_use_a_blacklist_matcher
    assert_instance_of StateMachine::BlacklistMatcher, @guard.event_requirement
  end
  
  def test_should_match_if_not_included
    assert @guard.matches?(@object, :on => :park)
  end
  
  def test_should_not_match_if_included
    assert !@guard.matches?(@object, :on => :ignite)
  end
  
  def test_should_match_if_nil
    assert @guard.matches?(@object, :on => nil)
  end
  
  def test_should_ignore_to
    assert @guard.matches?(@object, :on => :park, :to => :idling)
  end
  
  def test_should_ignore_from
    assert @guard.matches?(@object, :on => :park, :from => :parked)
  end
  
  def test_should_not_be_included_in_known_states
    assert_equal [], @guard.known_states
  end
end

class GuardWithMultipleExceptOnRequirementsTest < Test::Unit::TestCase
  def setup
    @object = Object.new
    @guard = StateMachine::Guard.new(:except_on => [:ignite, :park])
  end
  
  def test_should_match_if_not_included
    assert @guard.matches?(@object, :on => :shift_up)
  end
  
  def test_should_not_match_if_included
    assert !@guard.matches?(@object, :on => :ignite)
  end
end

class GuardWithFailuresExcludedTest < Test::Unit::TestCase
  def setup
    @object = Object.new
    @guard = StateMachine::Guard.new(:include_failures => false)
  end
  
  def test_should_use_a_blacklist_matcher
    assert_instance_of StateMachine::WhitelistMatcher, @guard.success_requirement
  end
  
  def test_should_match_if_not_specified
    assert @guard.matches?(@object)
  end
  
  def test_should_match_if_true
    assert @guard.matches?(@object, :success => true)
  end
  
  def test_should_not_match_if_false
    assert !@guard.matches?(@object, :success => false)
  end
end

class GuardWithFailuresIncludedTest < Test::Unit::TestCase
  def setup
    @object = Object.new
    @guard = StateMachine::Guard.new(:include_failures => true)
  end
  
  def test_should_use_all_matcher
    assert_equal StateMachine::AllMatcher.instance, @guard.success_requirement
  end
  
  def test_should_match_if_not_specified
    assert @guard.matches?(@object)
  end
  
  def test_should_match_if_true
    assert @guard.matches?(@object, :success => true)
  end
  
  def test_should_match_if_false
    assert @guard.matches?(@object, :success => false)
  end
end

class GuardWithConflictingFromRequirementsTest < Test::Unit::TestCase
  def test_should_raise_an_exception
    exception = assert_raise(ArgumentError) { StateMachine::Guard.new(:from => :parked, :except_from => :parked) }
    assert_equal 'Conflicting keys: from, except_from', exception.message
  end
end

class GuardWithConflictingToRequirementsTest < Test::Unit::TestCase
  def test_should_raise_an_exception
    exception = assert_raise(ArgumentError) { StateMachine::Guard.new(:to => :idling, :except_to => :idling) }
    assert_equal 'Conflicting keys: to, except_to', exception.message
  end
end

class GuardWithConflictingOnRequirementsTest < Test::Unit::TestCase
  def test_should_raise_an_exception
    exception = assert_raise(ArgumentError) { StateMachine::Guard.new(:on => :ignite, :except_on => :ignite) }
    assert_equal 'Conflicting keys: on, except_on', exception.message
  end
end

class GuardWithDifferentRequirementsTest < Test::Unit::TestCase
  def setup
    @object = Object.new
    @guard = StateMachine::Guard.new(:from => :parked, :to => :idling, :on => :ignite)
  end
  
  def test_should_match_empty_query
    assert @guard.matches?(@object)
  end
  
  def test_should_match_if_all_requirements_match
    assert @guard.matches?(@object, :from => :parked, :to => :idling, :on => :ignite)
  end
  
  def test_should_not_match_if_from_not_included
    assert !@guard.matches?(@object, :from => :idling)
  end
  
  def test_should_not_match_if_to_not_included
    assert !@guard.matches?(@object, :to => :parked)
  end
  
  def test_should_not_match_if_on_not_included
    assert !@guard.matches?(@object, :on => :park)
  end
  
  def test_should_be_nil_if_unmatched
    assert_nil @guard.match(@object, :from => :parked, :to => :idling, :on => :park)
  end
  
  def test_should_include_all_known_states
    assert_equal [:parked, :idling], @guard.known_states
  end
  
  def test_should_not_duplicate_known_statse
    guard = StateMachine::Guard.new(:except_from => :idling, :to => :idling, :on => :ignite)
    assert_equal [:idling], guard.known_states
  end
end

class GuardWithNilRequirementsTest < Test::Unit::TestCase
  def setup
    @object = Object.new
    @guard = StateMachine::Guard.new(:from => nil, :to => nil)
  end
  
  def test_should_match_empty_query
    assert @guard.matches?(@object)
  end
  
  def test_should_match_if_all_requirements_match
    assert @guard.matches?(@object, :from => nil, :to => nil)
  end
  
  def test_should_not_match_if_from_not_included
    assert !@guard.matches?(@object, :from => :parked)
  end
  
  def test_should_not_match_if_to_not_included
    assert !@guard.matches?(@object, :to => :idling)
  end
  
  def test_should_include_all_known_states
    assert_equal [nil], @guard.known_states
  end
end

class GuardWithImplicitRequirementTest < Test::Unit::TestCase
  def setup
    @guard = StateMachine::Guard.new(:parked => :idling, :on => :ignite)
  end
  
  def test_should_create_an_event_requirement
    assert_instance_of StateMachine::WhitelistMatcher, @guard.event_requirement
    assert_equal [:ignite], @guard.event_requirement.values
  end
  
  def test_should_use_a_whitelist_from_matcher
    assert_instance_of StateMachine::WhitelistMatcher, @guard.state_requirements.first[:from]
  end
  
  def test_should_use_a_whitelist_to_matcher
    assert_instance_of StateMachine::WhitelistMatcher, @guard.state_requirements.first[:to]
  end
end

class GuardWithMultipleImplicitRequirementsTest < Test::Unit::TestCase
  def setup
    @object = Object.new
    @guard = StateMachine::Guard.new(:parked => :idling, :idling => :first_gear, :on => :ignite)
  end
  
  def test_should_create_multiple_state_requirements
    assert_equal 2, @guard.state_requirements.length
  end
  
  def test_should_not_match_event_as_state_requirement
    assert !@guard.matches?(@object, :from => :on, :to => :ignite)
  end
  
  def test_should_match_if_from_included_in_any
    assert @guard.matches?(@object, :from => :parked)
    assert @guard.matches?(@object, :from => :idling)
  end
  
  def test_should_not_match_if_from_not_included_in_any
    assert !@guard.matches?(@object, :from => :first_gear)
  end
  
  def test_should_match_if_to_included_in_any
    assert @guard.matches?(@object, :to => :idling)
    assert @guard.matches?(@object, :to => :first_gear)
  end
  
  def test_should_not_match_if_to_not_included_in_any
    assert !@guard.matches?(@object, :to => :parked)
  end
  
  def test_should_match_if_all_options_match
    assert @guard.matches?(@object, :from => :parked, :to => :idling, :on => :ignite)
    assert @guard.matches?(@object, :from => :idling, :to => :first_gear, :on => :ignite)
  end
  
  def test_should_not_match_if_any_options_do_not_match
    assert !@guard.matches?(@object, :from => :parked, :to => :idling, :on => :park)
    assert !@guard.matches?(@object, :from => :parked, :to => :first_gear, :on => :park)
  end
  
  def test_should_include_all_known_states
    assert_equal [:first_gear, :idling, :parked], @guard.known_states.sort_by {|state| state.to_s}
  end
  
  def test_should_not_duplicate_known_statse
    guard = StateMachine::Guard.new(:parked => :idling, :first_gear => :idling)
    assert_equal [:first_gear, :idling, :parked], guard.known_states.sort_by {|state| state.to_s}
  end
end

class GuardWithImplicitFromRequirementMatcherTest < Test::Unit::TestCase
  def setup
    @matcher = StateMachine::BlacklistMatcher.new(:parked)
    @guard = StateMachine::Guard.new(@matcher => :idling)
  end
  
  def test_should_not_convert_from_to_whitelist_matcher
    assert_equal @matcher, @guard.state_requirements.first[:from]
  end
  
  def test_should_convert_to_to_whitelist_matcher
    assert_instance_of StateMachine::WhitelistMatcher, @guard.state_requirements.first[:to]
  end
end

class GuardWithImplicitToRequirementMatcherTest < Test::Unit::TestCase
  def setup
    @matcher = StateMachine::BlacklistMatcher.new(:idling)
    @guard = StateMachine::Guard.new(:parked => @matcher)
  end
  
  def test_should_convert_from_to_whitelist_matcher
    assert_instance_of StateMachine::WhitelistMatcher, @guard.state_requirements.first[:from]
  end
  
  def test_should_not_convert_to_to_whitelist_matcher
    assert_equal @matcher, @guard.state_requirements.first[:to]
  end
end

class GuardWithImplicitAndExplicitRequirementsTest < Test::Unit::TestCase
  def setup
    @guard = StateMachine::Guard.new(:parked => :idling, :from => :parked)
  end
  
  def test_should_create_multiple_requirements
    assert_equal 2, @guard.state_requirements.length
  end
  
  def test_should_create_implicit_requirements_for_implicit_options
    assert(@guard.state_requirements.any? do |state_requirement|
      state_requirement[:from].values == [:parked] && state_requirement[:to].values == [:idling]
    end)
  end
  
  def test_should_create_implicit_requirements_for_explicit_options
    assert(@guard.state_requirements.any? do |state_requirement|
      state_requirement[:from].values == [:from] && state_requirement[:to].values == [:parked]
    end)
  end
end

class GuardWithIfConditionalTest < Test::Unit::TestCase
  def setup
    @object = Object.new
  end
  
  def test_should_have_an_if_condition
    guard = StateMachine::Guard.new(:if => lambda {true})
    assert_not_nil guard.if_condition
  end
  
  def test_should_match_if_true
    guard = StateMachine::Guard.new(:if => lambda {true})
    assert guard.matches?(@object)
  end
  
  def test_should_not_match_if_false
    guard = StateMachine::Guard.new(:if => lambda {false})
    assert !guard.matches?(@object)
  end
  
  def test_should_be_nil_if_unmatched
    guard = StateMachine::Guard.new(:if => lambda {false})
    assert_nil guard.match(@object)
  end
end

class GuardWithMultipleIfConditionalsTest < Test::Unit::TestCase
  def setup
    @object = Object.new
  end
  
  def test_should_match_if_all_are_true
    guard = StateMachine::Guard.new(:if => [lambda {true}, lambda {true}])
    assert guard.match(@object)
  end
  
  def test_should_not_match_if_any_are_false
    guard = StateMachine::Guard.new(:if => [lambda {true}, lambda {false}])
    assert !guard.match(@object)
    
    guard = StateMachine::Guard.new(:if => [lambda {false}, lambda {true}])
    assert !guard.match(@object)
  end
end

class GuardWithUnlessConditionalTest < Test::Unit::TestCase
  def setup
    @object = Object.new
  end
  
  def test_should_have_an_unless_condition
    guard = StateMachine::Guard.new(:unless => lambda {true})
    assert_not_nil guard.unless_condition
  end
  
  def test_should_match_if_false
    guard = StateMachine::Guard.new(:unless => lambda {false})
    assert guard.matches?(@object)
  end
  
  def test_should_not_match_if_true
    guard = StateMachine::Guard.new(:unless => lambda {true})
    assert !guard.matches?(@object)
  end
  
  def test_should_be_nil_if_unmatched
    guard = StateMachine::Guard.new(:unless => lambda {true})
    assert_nil guard.match(@object)
  end
end

class GuardWithMultipleUnlessConditionalsTest < Test::Unit::TestCase
  def setup
    @object = Object.new
  end
  
  def test_should_match_if_all_are_false
    guard = StateMachine::Guard.new(:unless => [lambda {false}, lambda {false}])
    assert guard.match(@object)
  end
  
  def test_should_not_match_if_any_are_true
    guard = StateMachine::Guard.new(:unless => [lambda {true}, lambda {false}])
    assert !guard.match(@object)
    
    guard = StateMachine::Guard.new(:unless => [lambda {false}, lambda {true}])
    assert !guard.match(@object)
  end
end

class GuardWithConflictingConditionalsTest < Test::Unit::TestCase
  def test_should_match_if_if_is_true_and_unless_is_false
    guard = StateMachine::Guard.new(:if => lambda {true}, :unless => lambda {false})
    assert guard.match(@object)
  end
  
  def test_should_not_match_if_if_is_false_and_unless_is_true
    guard = StateMachine::Guard.new(:if => lambda {false}, :unless => lambda {true})
    assert !guard.match(@object)
  end
  
  def test_should_not_match_if_if_is_false_and_unless_is_false
    guard = StateMachine::Guard.new(:if => lambda {false}, :unless => lambda {false})
    assert !guard.match(@object)
  end
  
  def test_should_not_match_if_if_is_true_and_unless_is_true
    guard = StateMachine::Guard.new(:if => lambda {true}, :unless => lambda {true})
    assert !guard.match(@object)
  end
end

begin
  # Load library
  require 'rubygems'
  require 'graphviz'
  
  class GuardDrawingTest < Test::Unit::TestCase
    def setup
      @machine = StateMachine::Machine.new(Class.new)
      states = [:parked, :idling]
      
      graph = GraphViz.new('G')
      states.each {|state| graph.add_node(state.to_s)}
      
      @guard = StateMachine::Guard.new(:from => :idling, :to => :parked)
      @edges = @guard.draw(graph, :park, states)
    end
    
    def test_should_create_edges
      assert_equal 1, @edges.size
    end
    
    def test_should_use_from_state_from_start_node
      assert_equal 'idling', @edges.first.instance_variable_get('@xNodeOne')
    end
    
    def test_should_use_to_state_for_end_node
      assert_equal 'parked', @edges.first.instance_variable_get('@xNodeTwo')
    end
    
    def test_should_use_event_name_as_label
      assert_equal 'park', @edges.first['label']
    end
  end
  
  class GuardDrawingWithFromRequirementTest < Test::Unit::TestCase
    def setup
      @machine = StateMachine::Machine.new(Class.new)
      states = [:parked, :idling, :first_gear]
      
      graph = GraphViz.new('G')
      states.each {|state| graph.add_node(state.to_s)}
      
      @guard = StateMachine::Guard.new(:from => [:idling, :first_gear], :to => :parked)
      @edges = @guard.draw(graph, :park, states)
    end
    
    def test_should_generate_edges_for_each_valid_from_state
      [:idling, :first_gear].each_with_index do |from_state, index|
        edge = @edges[index]
        assert_equal from_state.to_s, edge.instance_variable_get('@xNodeOne')
        assert_equal 'parked', edge.instance_variable_get('@xNodeTwo')
      end
    end
  end
  
  class GuardDrawingWithExceptFromRequirementTest < Test::Unit::TestCase
    def setup
      @machine = StateMachine::Machine.new(Class.new)
      states = [:parked, :idling, :first_gear]
      
      graph = GraphViz.new('G')
      states.each {|state| graph.add_node(state.to_s)}
      
      @guard = StateMachine::Guard.new(:except_from => :parked, :to => :parked)
      @edges = @guard.draw(graph, :park, states)
    end
    
    def test_should_generate_edges_for_each_valid_from_state
      %w(idling first_gear).each_with_index do |from_state, index|
        edge = @edges[index]
        assert_equal from_state, edge.instance_variable_get('@xNodeOne')
        assert_equal 'parked', edge.instance_variable_get('@xNodeTwo')
      end
    end
  end
  
  class GuardDrawingWithoutFromRequirementTest < Test::Unit::TestCase
    def setup
      @machine = StateMachine::Machine.new(Class.new)
      states = [:parked, :idling, :first_gear]
      
      graph = GraphViz.new('G')
      states.each {|state| graph.add_node(state.to_s)}
      
      @guard = StateMachine::Guard.new(:to => :parked)
      @edges = @guard.draw(graph, :park, states)
    end
    
    def test_should_generate_edges_for_each_valid_from_state
      %w(parked idling first_gear).each_with_index do |from_state, index|
        edge = @edges[index]
        assert_equal from_state, edge.instance_variable_get('@xNodeOne')
        assert_equal 'parked', edge.instance_variable_get('@xNodeTwo')
      end
    end
  end
  
  class GuardDrawingWithoutToRequirementTest < Test::Unit::TestCase
    def setup
      @machine = StateMachine::Machine.new(Class.new)
      
      graph = GraphViz.new('G')
      graph.add_node('parked')
      
      @guard = StateMachine::Guard.new(:from => :parked)
      @edges = @guard.draw(graph, :park, [:parked])
    end
    
    def test_should_create_loopback_edge
      assert_equal 'parked', @edges.first.instance_variable_get('@xNodeOne')
      assert_equal 'parked', @edges.first.instance_variable_get('@xNodeTwo')
    end
  end
  
  class GuardDrawingWithNilStateTest < Test::Unit::TestCase
    def setup
      @machine = StateMachine::Machine.new(Class.new)
      
      graph = GraphViz.new('G')
      graph.add_node('parked')
      
      @guard = StateMachine::Guard.new(:from => :idling, :to => nil)
      @edges = @guard.draw(graph, :park, [nil, :idling])
    end
    
    def test_should_generate_edges_for_each_valid_from_state
      assert_equal 'idling', @edges.first.instance_variable_get('@xNodeOne')
      assert_equal 'nil', @edges.first.instance_variable_get('@xNodeTwo')
    end
  end
rescue LoadError
  $stderr.puts 'Skipping GraphViz StateMachine::Guard tests. `gem install ruby-graphviz` and try again.'
end
Back to Top