diff --git a/tests/data/atx_heading2.html b/tests/data/atx_heading2.html
new file mode 100644
index 0000000..8ddad40
--- /dev/null
+++ b/tests/data/atx_heading2.html
@@ -0,0 +1,8 @@
+<p>check the validity of the headings</p>
+<p>#
+##
+###
+####
+#####
+######</p>
+<p>####### h7 is not valid #######</p>
\ No newline at end of file
diff --git a/tests/data/atx_heading2.md b/tests/data/atx_heading2.md
new file mode 100644
index 0000000..6cbca60
--- /dev/null
+++ b/tests/data/atx_heading2.md
@@ -0,0 +1,10 @@
+check the validity of the headings
+
+#
+##
+###
+####
+#####
+######
+
+####### h7 is not valid #######