diff --git a/tests/tests/atx_heading.html b/tests/tests/atx_heading.html
index 7d8118e..0540854 100644
--- a/tests/tests/atx_heading.html
+++ b/tests/tests/atx_heading.html
@@ -1,2 +1,14 @@
 <h1>This is an h1</h1>
-<h2>This is an h2</h2>
\ No newline at end of file
+<h2>This is an h2</h2>
+<h3>This is an h3</h3>
+<h4>This is an h4</h4>
+<h5>This is an h5</h5>
+<h6>This is an h6</h6>
+<h1>This is a closed h1</h1>
+<h2>This is a closed h2</h2>
+<h3>This is a closed h3</h3>
+<h4>This is a closed h4</h4>
+<h5>This is a closed h5</h5>
+<h6>This is a closed h6</h6>
+<h1>This is an irregularly closed h1</h1>
+<h4>This is an irregularly closed h4</h4>
\ No newline at end of file
diff --git a/tests/tests/atx_heading.md b/tests/tests/atx_heading.md
index cede358..4f6e49b 100644
--- a/tests/tests/atx_heading.md
+++ b/tests/tests/atx_heading.md
@@ -1,3 +1,27 @@
 # This is an h1
 
-## This is an h2
\ No newline at end of file
+## This is an h2
+
+### This is an h3
+
+#### This is an h4
+
+##### This is an h5
+
+###### This is an h6
+
+# This is a closed h1 #
+
+## This is a closed h2 ##
+
+### This is a closed h3 ###
+
+#### This is a closed h4 ####
+
+##### This is a closed h5 #####
+
+###### This is a closed h6 ######
+
+# This is an irregularly closed h1 ###
+
+#### This is an irregularly closed h4 ##
\ No newline at end of file