Volitional

lib/ika_conjugations/verb.rb

@@ -69,6 +69,10 @@ module IkaConjugations
       Ichidan.new(stem.kanji + "すぎる", stem.kana + "すぎる", "#{definition} too much")
     end
 
+    def volitional
+      negative_stem + "よう"
+    end
+
     class Ichidan < Verb
       def stem
         all_but_last_character
@@ -136,6 +140,10 @@ module IkaConjugations
                                    "んで"
                                  end
       end
+
+      def volitional
+        all_but_last_character + last_character("o") + "う"
+      end
     end
 
     class Suru < Verb

test/ika_conjugations/test_verb.rb

@@ -195,6 +195,7 @@ module IkaConjugations
       assert_equal "連れて来たい", @tsuretekuru.desire.kanji
       assert_equal "つれてきたい", @tsuretekuru.desire.kana
       assert_equal "ありたい", @aru.desire.kana
+      assert_equal "あいたい", @au.desire.kana
     end
 
     def test_potential
@@ -220,5 +221,22 @@ module IkaConjugations
       assert_equal "to drink too much", @nomu.excessive.definition
       assert_equal "べんきょうしすぎました", @benkyousuru.excessive.long_form_past_positive.kana
     end
+
+    def test_volitional
+      assert_equal "見よう", @miru.volitional.kanji
+      assert_equal "みよう", @miru.volitional.kana
+      assert_equal "飲もう", @nomu.volitional.kanji
+      assert_equal "のもう", @nomu.volitional.kana
+      assert_equal "しよう", @suru.volitional.kanji
+      assert_equal "しよう", @suru.volitional.kana
+      assert_equal "勉強しよう", @benkyousuru.volitional.kanji
+      assert_equal "べんきょうしよう", @benkyousuru.volitional.kana
+      assert_equal "来よう", @kuru.volitional.kanji
+      assert_equal "こよう", @kuru.volitional.kana
+      assert_equal "連れて来よう", @tsuretekuru.volitional.kanji
+      assert_equal "つれてこよう", @tsuretekuru.volitional.kana
+      assert_equal "あろう", @aru.volitional.kana
+      assert_equal "あおう", @au.volitional.kana
+    end
   end
 end