aboutsummaryrefslogtreecommitdiffstats
path: root/activesupport/test/inflector_test.rb
blob: d8c93dc9ae265c530607c651f38bf29ae2de5b9c (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
require 'abstract_unit'
require 'inflector_test_cases'

module Ace
  module Base
    class Case
    end
  end
end

class InflectorTest < Test::Unit::TestCase
  include InflectorTestCases

  def test_pluralize_plurals
    assert_equal "plurals", ActiveSupport::Inflector.pluralize("plurals")
    assert_equal "Plurals", ActiveSupport::Inflector.pluralize("Plurals")
  end

  def test_pluralize_empty_string
    assert_equal "", ActiveSupport::Inflector.pluralize("")
  end

  SingularToPlural.each do |singular, plural|
    define_method "test_pluralize_#{singular}" do
      assert_equal(plural, ActiveSupport::Inflector.pluralize(singular))
      assert_equal(plural.capitalize, ActiveSupport::Inflector.pluralize(singular.capitalize))
    end
  end

  SingularToPlural.each do |singular, plural|
    define_method "test_singularize_#{plural}" do
      assert_equal(singular, ActiveSupport::Inflector.singularize(plural))
      assert_equal(singular.capitalize, ActiveSupport::Inflector.singularize(plural.capitalize))
    end
  end

  def test_overwrite_previous_inflectors
    assert_equal("series", ActiveSupport::Inflector.singularize("series"))
    ActiveSupport::Inflector.inflections.singular "series", "serie"
    assert_equal("serie", ActiveSupport::Inflector.singularize("series"))
    ActiveSupport::Inflector.inflections.uncountable "series" # Return to normal
  end

  MixtureToTitleCase.each do |before, titleized|
    define_method "test_titleize_#{before}" do
      assert_equal(titleized, ActiveSupport::Inflector.titleize(before))
    end
  end

  def test_camelize
    CamelToUnderscore.each do |camel, underscore|
      assert_equal(camel, ActiveSupport::Inflector.camelize(underscore))
    end
  end

  def test_camelize_with_lower_downcases_the_first_letter
    assert_equal('capital', ActiveSupport::Inflector.camelize('Capital', false))
  end

  def test_underscore
    CamelToUnderscore.each do |camel, underscore|
      assert_equal(underscore, ActiveSupport::Inflector.underscore(camel))
    end
    CamelToUnderscoreWithoutReverse.each do |camel, underscore|
      assert_equal(underscore, ActiveSupport::Inflector.underscore(camel))
    end
  end

  def test_camelize_with_module
    CamelWithModuleToUnderscoreWithSlash.each do |camel, underscore|
      assert_equal(camel, ActiveSupport::Inflector.camelize(underscore))
    end
  end

  def test_underscore_with_slashes
    CamelWithModuleToUnderscoreWithSlash.each do |camel, underscore|
      assert_equal(underscore, ActiveSupport::Inflector.underscore(camel))
    end
  end

  def test_demodulize
    assert_equal "Account", ActiveSupport::Inflector.demodulize("MyApplication::Billing::Account")
  end

  def test_foreign_key
    ClassNameToForeignKeyWithUnderscore.each do |klass, foreign_key|
      assert_equal(foreign_key, ActiveSupport::Inflector.foreign_key(klass))
    end

    ClassNameToForeignKeyWithoutUnderscore.each do |klass, foreign_key|
      assert_equal(foreign_key, ActiveSupport::Inflector.foreign_key(klass, false))
    end
  end

  def test_tableize
    ClassNameToTableName.each do |class_name, table_name|
      assert_equal(table_name, ActiveSupport::Inflector.tableize(class_name))
    end
  end

  def test_parameterize
    StringToParameterized.each do |some_string, parameterized_string|
      assert_equal(parameterized_string, ActiveSupport::Inflector.parameterize(some_string))
    end
  end

  def test_parameterize_and_normalize
    StringToParameterizedAndNormalized.each do |some_string, parameterized_string|
      assert_equal(parameterized_string, ActiveSupport::Inflector.parameterize(some_string))
    end
  end

  def test_parameterize_with_custom_separator
    StringToParameterized.each do |some_string, parameterized_string|
      assert_equal(parameterized_string.gsub('-', '_'), ActiveSupport::Inflector.parameterize(some_string, '_'))
    end
  end

  def test_classify
    ClassNameToTableName.each do |class_name, table_name|
      assert_equal(class_name, ActiveSupport::Inflector.classify(table_name))
      assert_equal(class_name, ActiveSupport::Inflector.classify("table_prefix." + table_name))
    end
  end

  def test_classify_with_symbol
    assert_nothing_raised do
      assert_equal 'FooBar', ActiveSupport::Inflector.classify(:foo_bars)
    end
  end

  def test_classify_with_leading_schema_name
    assert_equal 'FooBar', ActiveSupport::Inflector.classify('schema.foo_bar')
  end

  def test_humanize
    UnderscoreToHuman.each do |underscore, human|
      assert_equal(human, ActiveSupport::Inflector.humanize(underscore))
    end
  end

  def test_humanize_by_rule
    ActiveSupport::Inflector.inflections do |inflect|
      inflect.human(/_cnt$/i, '\1_count')
      inflect.human(/^prefx_/i, '\1')
    end
    assert_equal("Jargon count", ActiveSupport::Inflector.humanize("jargon_cnt"))
    assert_equal("Request", ActiveSupport::Inflector.humanize("prefx_request"))
  end

  def test_humanize_by_string
    ActiveSupport::Inflector.inflections do |inflect|
      inflect.human("col_rpted_bugs", "Reported bugs")
    end
    assert_equal("Reported bugs", ActiveSupport::Inflector.humanize("col_rpted_bugs"))
    assert_equal("Col rpted bugs", ActiveSupport::Inflector.humanize("COL_rpted_bugs"))
  end

  def test_constantize
    assert_nothing_raised { assert_equal Ace::Base::Case, ActiveSupport::Inflector.constantize("Ace::Base::Case") }
    assert_nothing_raised { assert_equal Ace::Base::Case, ActiveSupport::Inflector.constantize("::Ace::Base::Case") }
    assert_nothing_raised { assert_equal InflectorTest, ActiveSupport::Inflector.constantize("InflectorTest") }
    assert_nothing_raised { assert_equal InflectorTest, ActiveSupport::Inflector.constantize("::InflectorTest") }
    assert_raises(NameError) { ActiveSupport::Inflector.constantize("UnknownClass") }
    assert_raises(NameError) { ActiveSupport::Inflector.constantize("An invalid string") }
    assert_raises(NameError) { ActiveSupport::Inflector.constantize("InvalidClass\n") }
  end

  def test_constantize_does_lexical_lookup
    assert_raises(NameError) { ActiveSupport::Inflector.constantize("Ace::Base::InflectorTest") }
  end

  def test_ordinal
    OrdinalNumbers.each do |number, ordinalized|
      assert_equal(ordinalized, ActiveSupport::Inflector.ordinalize(number))
    end
  end

  def test_dasherize
    UnderscoresToDashes.each do |underscored, dasherized|
      assert_equal(dasherized, ActiveSupport::Inflector.dasherize(underscored))
    end
  end

  def test_underscore_as_reverse_of_dasherize
    UnderscoresToDashes.each do |underscored, dasherized|
      assert_equal(underscored, ActiveSupport::Inflector.underscore(ActiveSupport::Inflector.dasherize(underscored)))
    end
  end

  def test_underscore_to_lower_camel
    UnderscoreToLowerCamel.each do |underscored, lower_camel|
      assert_equal(lower_camel, ActiveSupport::Inflector.camelize(underscored, false))
    end
  end

  %w{plurals singulars uncountables humans}.each do |inflection_type|
    class_eval "
      def test_clear_#{inflection_type}
        cached_values = ActiveSupport::Inflector.inflections.#{inflection_type}
        ActiveSupport::Inflector.inflections.clear :#{inflection_type}
        assert ActiveSupport::Inflector.inflections.#{inflection_type}.empty?, \"#{inflection_type} inflections should be empty after clear :#{inflection_type}\"
        ActiveSupport::Inflector.inflections.instance_variable_set :@#{inflection_type}, cached_values
      end
    "
  end

  def test_clear_all
    cached_values = ActiveSupport::Inflector.inflections.plurals, ActiveSupport::Inflector.inflections.singulars, ActiveSupport::Inflector.inflections.uncountables, ActiveSupport::Inflector.inflections.humans
    ActiveSupport::Inflector.inflections.clear :all
    assert ActiveSupport::Inflector.inflections.plurals.empty?
    assert ActiveSupport::Inflector.inflections.singulars.empty?
    assert ActiveSupport::Inflector.inflections.uncountables.empty?
    assert ActiveSupport::Inflector.inflections.humans.empty?
    ActiveSupport::Inflector.inflections.instance_variable_set :@plurals, cached_values[0]
    ActiveSupport::Inflector.inflections.instance_variable_set :@singulars, cached_values[1]
    ActiveSupport::Inflector.inflections.instance_variable_set :@uncountables, cached_values[2]
    ActiveSupport::Inflector.inflections.instance_variable_set :@humans, cached_values[3]
  end

  def test_clear_with_default
    cached_values = ActiveSupport::Inflector.inflections.plurals, ActiveSupport::Inflector.inflections.singulars, ActiveSupport::Inflector.inflections.uncountables, ActiveSupport::Inflector.inflections.humans
    ActiveSupport::Inflector.inflections.clear
    assert ActiveSupport::Inflector.inflections.plurals.empty?
    assert ActiveSupport::Inflector.inflections.singulars.empty?
    assert ActiveSupport::Inflector.inflections.uncountables.empty?
    assert ActiveSupport::Inflector.inflections.humans.empty?
    ActiveSupport::Inflector.inflections.instance_variable_set :@plurals, cached_values[0]
    ActiveSupport::Inflector.inflections.instance_variable_set :@singulars, cached_values[1]
    ActiveSupport::Inflector.inflections.instance_variable_set :@uncountables, cached_values[2]
    ActiveSupport::Inflector.inflections.instance_variable_set :@humans, cached_values[3]
  end

  Irregularities.each do |irregularity|
    singular, plural = *irregularity
    ActiveSupport::Inflector.inflections do |inflect|
      define_method("test_irregularity_between_#{singular}_and_#{plural}") do
        inflect.irregular(singular, plural)
        assert_equal singular, ActiveSupport::Inflector.singularize(plural)
        assert_equal plural, ActiveSupport::Inflector.pluralize(singular)
      end
    end
  end

  [ :all, [] ].each do |scope|
    ActiveSupport::Inflector.inflections do |inflect|
      define_method("test_clear_inflections_with_#{scope.kind_of?(Array) ? "no_arguments" : scope}") do
        # save all the inflections
        singulars, plurals, uncountables = inflect.singulars, inflect.plurals, inflect.uncountables

        # clear all the inflections
        inflect.clear(*scope)

        assert_equal [], inflect.singulars
        assert_equal [], inflect.plurals
        assert_equal [], inflect.uncountables

        # restore all the inflections
        singulars.reverse.each { |singular| inflect.singular(*singular) }
        plurals.reverse.each   { |plural|   inflect.plural(*plural) }
        inflect.uncountable(uncountables)

        assert_equal singulars, inflect.singulars
        assert_equal plurals, inflect.plurals
        assert_equal uncountables, inflect.uncountables
      end
    end
  end

  { :singulars => :singular, :plurals => :plural, :uncountables => :uncountable, :humans => :human }.each do |scope, method|
    ActiveSupport::Inflector.inflections do |inflect|
      define_method("test_clear_inflections_with_#{scope}") do
        # save the inflections
        values = inflect.send(scope)

        # clear the inflections
        inflect.clear(scope)

        assert_equal [], inflect.send(scope)

        # restore the inflections
        if scope == :uncountables
          inflect.send(method, values)
        else
          values.reverse.each { |value| inflect.send(method, *value) }
        end

        assert_equal values, inflect.send(scope)
      end
    end
  end
end