Add spec tests for HTML5-modified converter

spec/html5_extended_converter.rb

@@ -0,0 +1,32 @@
+# frozen_string_literal: true
+
+require 'asciidoctor/foodogsquared/converters/html5-extended'
+
+describe Asciidoctor::Foodogsquared::Converters::HTML5Modified do
+  it 'should have a more semantic paragraph output' do
+    input = <<~INPUT
+      Hello there, fanciful!
+    INPUT
+
+    expected = <<~HTML
+      <p>Hello there, fanciful!</p>
+    HTML
+
+    actual = (Asciidoctor.convert input).chomp
+    (expect actual).to eq expected.chomp
+  end
+
+  it 'should still have a more semantic paragraph output with a title' do
+    input = <<~INPUT
+      .Whoa there!
+      Hello there, fanciful!
+    INPUT
+
+    expected = <<~HTML
+      <p><strong class="title">Whoa there!</strong>Hello there, fanciful!</p>
+    HTML
+
+    actual = (Asciidoctor.convert input).chomp
+    (expect actual).to eq expected.chomp
+  end
+end