Added tests for the convert_verse() method.

test/test_verse.rb

@@ -0,0 +1,46 @@
+require 'minitest/autorun'
+require_relative 'helper'
+
+class VerseTest < Minitest::Test
+  def test_explicit_verse
+    xml = <<~EOF.chomp.to_dita
+    [verse]
+    First line
+    Second line
+    EOF
+
+    assert_xpath_equal xml, "First line\nSecond line", '//lines/text()'
+  end
+
+  def test_delimited_verse
+    xml = <<~EOF.chomp.to_dita
+    [verse]
+    ____
+    First line
+
+    Second line
+    ____
+    EOF
+
+    assert_xpath_equal xml, "First line\n\nSecond line", '//lines/text()'
+  end
+
+  def test_verse_author
+    xml = <<~EOF.chomp.to_dita
+    [verse,Author Name]
+    Verse line
+    EOF
+
+    assert_xpath_equal xml, "Verse line\n&#8212; Author Name", '//lines/text()'
+  end
+
+  def test_verse_source
+    xml = <<~EOF.chomp.to_dita
+    [verse,,Citation source]
+    Verse line
+    EOF
+
+    assert_xpath_equal xml, 'Verse line', '//lines/text()'
+    assert_xpath_equal xml, 'Citation source', '//lines/cite/text()'
+  end
+end