splits_furigana_test.rb

class SplitsFuriganaTest < ActiveSupport::TestCase
  def setup
    @subject = SplitsFurigana.new
  end

  def test_some_basics
    # No reading, no fuss
    assert_equal [h("ひろ", nil)], @subject.call("ひろ", nil)

    # All kanji, no splitting
    assert_equal [h("僕", "ぼく")], @subject.call("僕", "ぼく")
    assert_equal [h("兄弟", "きょうだい")], @subject.call("兄弟", "きょうだい")

    # Partial coverage gets split (no furigana over kana, no repitition
    assert_equal [h("眠", "ねむ"), h("ら", nil)], @subject.call("眠ら", "ねむら")

    # Split partial when the leading is hiragan too
    assert_equal [h("お", nil), h("金", "かね")], @subject.call("お金", "おかね")

    # Hiragana in the middle
    assert_equal [h("女", "おんな"), h("の", nil), h("子", "こ")], @subject.call("女の子", "おんなのこ")

    # Pronunciation of numbers changes, so furigana over them
    assert_equal [h("６月", "ろくがつ")], @subject.call("６月", "ろくがつ")

    # Romaji may have furigana too, but there are furigan
    assert_equal [h("ＶＩＳＡ", "びさ")], @subject.call("ＶＩＳＡ", "びさ")
  end

  def test_nasty_edge_cases
    # All katakana & punctuation, no kanji, no furigana:
    assert_equal [h("ザ・ベスト", nil)], @subject.call("ザ・ベスト", "ざべすと")

    # A reading can be shorter than the kanji
    assert_equal [h("啄木鳥", "けら")], @subject.call("啄木鳥", "けら")
  end

  private

  def h(text, kana)
    SplitsFurigana::FuriganaPair.new(text, kana)
  end
end