Added tests for the convert_quote() method.

test/test_quote.rb

@@ -0,0 +1,52 @@
+require 'minitest/autorun'
+require_relative 'helper'
+
+class QuoteTest < Minitest::Test
+  def test_explicit_quote
+    xml = <<~EOF.chomp.to_dita
+    [quote,Author Name,Quote source]
+    Quoted line
+    EOF
+
+    assert_xpath_equal xml, 'Quoted line', '//lq/p[1]/text()'
+    assert_xpath_equal xml, '&#8212; Author Name', '//lq/p[2]/text()'
+    assert_xpath_equal xml, 'Quote source', '//lq/cite/text()'
+  end
+
+  def test_delimited_quote
+    xml = <<~EOF.chomp.to_dita
+    [quote,Author Name,Quote source]
+    ____
+    First line
+
+    Second line
+    ____
+    EOF
+
+    assert_xpath_equal xml, 'First line', '//lq/p[1]/text()'
+    assert_xpath_equal xml, 'Second line', '//lq/p[2]/text()'
+    assert_xpath_equal xml, '&#8212; Author Name', '//lq/p[3]/text()'
+    assert_xpath_equal xml, 'Quote source', '//lq/cite/text()'
+  end
+
+  def test_quoted_paragraph
+    xml = <<~EOF.chomp.to_dita
+    "Quoted line"
+    -- Author Name, Quote source
+    EOF
+
+    assert_xpath_equal xml, 'Quoted line', '//lq/p[1]/text()'
+    assert_xpath_equal xml, '&#8212; Author Name', '//lq/p[2]/text()'
+    assert_xpath_equal xml, 'Quote source', '//lq/cite/text()'
+  end
+
+  def test_quote_title
+    xml = <<~EOF.chomp.to_dita
+    .Quote title
+    [quote,Author Name,Quote source]
+    Quoted line
+    EOF
+
+    assert_xpath_equal xml, 'Quote title', '//lq/p[@outputclass="title"]/b/text()'
+  end
+end