diff --git a/tests/data/attribute-class-in.md b/tests/data/attribute-class-in.md
new file mode 100644
index 0000000..11bb5cc
--- /dev/null
+++ b/tests/data/attribute-class-in.md
@@ -0,0 +1,11 @@
+{class="some-class(value)"}
+[Some text here!](/link){class="link(variant)" target="_blank"}
+
+{.-hello}
+Some text
+
+{.smile-😎 .yolo}
+Some text
+
+{id="smile-😎"}
+Some text
diff --git a/tests/data/attribute-class-out.html b/tests/data/attribute-class-out.html
new file mode 100644
index 0000000..f90e536
--- /dev/null
+++ b/tests/data/attribute-class-out.html
@@ -0,0 +1,4 @@
+<p class="some-class(value)"><a class="link(variant)" target="_blank" href="/link" rel="noopener noreferrer">Some text here!</a></p>
+<p class="-hello">Some text</p>
+<p class="smile-😎 yolo">Some text</p>
+<p id="smile-😎">Some text</p>
diff --git a/tests/data/attribute-class-out.md b/tests/data/attribute-class-out.md
new file mode 100644
index 0000000..52a1899
--- /dev/null
+++ b/tests/data/attribute-class-out.md
@@ -0,0 +1,11 @@
+{.some-class(value)}
+[Some text here!](/link){.link(variant) target="_blank"}
+
+{.-hello}
+Some text
+
+{.smile-😎 .yolo}
+Some text
+
+{#smile-😎}
+Some text
diff --git a/tests/data/ordered_lists-in.md b/tests/data/ordered_lists-in.md
new file mode 100644
index 0000000..c8371aa
--- /dev/null
+++ b/tests/data/ordered_lists-in.md
@@ -0,0 +1,6 @@
+1. one
+1. two
+1. three
+    1. three dot one
+    1. three dot two
+1. four
diff --git a/tests/data/ordered_lists-out.html b/tests/data/ordered_lists-out.html
new file mode 100644
index 0000000..aa4481a
--- /dev/null
+++ b/tests/data/ordered_lists-out.html
@@ -0,0 +1,11 @@
+<ol>
+<li>one</li>
+<li>two</li>
+<li>three
+<ol>
+<li>three dot one</li>
+<li>three dot two</li>
+</ol>
+</li>
+<li>four</li>
+</ol>
diff --git a/tests/data/ordered_lists-out.md b/tests/data/ordered_lists-out.md
new file mode 100644
index 0000000..688cbfc
--- /dev/null
+++ b/tests/data/ordered_lists-out.md
@@ -0,0 +1,6 @@
+1. one
+2. two
+3. three
+    1. three dot one
+    2. three dot two
+4. four
diff --git a/tests/data/pre-broken-in.md b/tests/data/pre-broken-in.md
new file mode 100644
index 0000000..e3eff67
--- /dev/null
+++ b/tests/data/pre-broken-in.md
@@ -0,0 +1,6 @@
+<p>Header</p>
+<pre><code>Some code
+
+Broken
+
+<p>Footer</p>
diff --git a/tests/data/pre-broken-out.html b/tests/data/pre-broken-out.html
new file mode 100644
index 0000000..306111c
--- /dev/null
+++ b/tests/data/pre-broken-out.html
@@ -0,0 +1,6 @@
+<p>Header</p>
+<pre><code>Some code
+
+Broken
+
+<p>Footer</p></code></pre>
diff --git a/tests/data/pre-broken-out.md b/tests/data/pre-broken-out.md
new file mode 100644
index 0000000..b246c9f
--- /dev/null
+++ b/tests/data/pre-broken-out.md
@@ -0,0 +1,7 @@
+Header
+
+<pre><code>Some code
+
+Broken
+
+<p>Footer</p></code></pre>