diff --git a/src/Markdig.Tests/Markdig.Tests.csproj b/src/Markdig.Tests/Markdig.Tests.csproj
index 1a1c5366..23801f21 100644
--- a/src/Markdig.Tests/Markdig.Tests.csproj
+++ b/src/Markdig.Tests/Markdig.Tests.csproj
@@ -57,6 +57,7 @@
       <DependentUpon>Specs.tt</DependentUpon>
     </Compile>
     <Compile Include="Specs\TestEmphasisPlus.cs" />
+    <Compile Include="TestEmphasisExtraOptions.cs" />
     <Compile Include="TestConfigureNewLine.cs" />
     <Compile Include="TestHtmlAttributes.cs" />
     <Compile Include="TestHtmlHelper.cs" />
diff --git a/src/Markdig.Tests/TestEmphasisExtraOptions.cs b/src/Markdig.Tests/TestEmphasisExtraOptions.cs
new file mode 100644
index 00000000..7920402a
--- /dev/null
+++ b/src/Markdig.Tests/TestEmphasisExtraOptions.cs
@@ -0,0 +1,45 @@
+using NUnit.Framework;
+using Markdig.Extensions.EmphasisExtras;
+
+namespace Markdig.Tests
+{
+    [TestFixture]
+    public class TestEmphasisExtraOptions
+    {
+        [Test]
+        public void OnlyStrikethrough_Single()
+        {
+            TestParser.TestSpec("~foo~", "<p>~foo~</p>", new MarkdownPipelineBuilder().UseEmphasisExtras(EmphasisExtraOptions.Strikethrough).Build());
+        }
+
+        [Test]
+        public void OnlyStrikethrough_Double()
+        {
+            TestParser.TestSpec("~~foo~~", "<p><del>foo</del></p>", new MarkdownPipelineBuilder().UseEmphasisExtras(EmphasisExtraOptions.Strikethrough).Build());
+        }
+
+        [Test]
+        public void OnlySubscript_Single()
+        {
+            TestParser.TestSpec("~foo~", "<p><sub>foo</sub></p>", new MarkdownPipelineBuilder().UseEmphasisExtras(EmphasisExtraOptions.Subscript).Build());
+        }
+
+        [Test]
+        public void OnlySubscript_Double()
+        {
+            TestParser.TestSpec("~~foo~~", "<p><sub><sub>foo</sub></sub></p>", new MarkdownPipelineBuilder().UseEmphasisExtras(EmphasisExtraOptions.Subscript).Build());
+        }
+
+        [Test]
+        public void SubscriptAndStrikethrough_Single()
+        {
+            TestParser.TestSpec("~foo~", "<p><sub>foo</sub></p>", new MarkdownPipelineBuilder().UseEmphasisExtras(EmphasisExtraOptions.Strikethrough | EmphasisExtraOptions.Subscript).Build());
+        }
+
+        [Test]
+        public void SubscriptAndStrikethrough_Double()
+        {
+            TestParser.TestSpec("~~foo~~", "<p><del>foo</del></p>", new MarkdownPipelineBuilder().UseEmphasisExtras(EmphasisExtraOptions.Strikethrough | EmphasisExtraOptions.Subscript).Build());
+        }
+    }
+}
\ No newline at end of file