diff --git a/test/rendering/fixtures/custom-block-void/index.js b/test/rendering/fixtures/custom-block-void/index.js
new file mode 100644
index 000000000..e508818c3
--- /dev/null
+++ b/test/rendering/fixtures/custom-block-void/index.js
@@ -0,0 +1,10 @@
+
+import React from 'react'
+
+function Image(props) {
+  return <img src={props.node.data.get('src')} />
+}
+
+export function renderNode(node) {
+  if (node.type == 'image') return Image
+}
diff --git a/test/rendering/fixtures/custom-block-void/input.yaml b/test/rendering/fixtures/custom-block-void/input.yaml
new file mode 100644
index 000000000..c02f43e13
--- /dev/null
+++ b/test/rendering/fixtures/custom-block-void/input.yaml
@@ -0,0 +1,11 @@
+
+nodes:
+  - kind: block
+    type: image
+    isVoid: true
+    data:
+      src: https://img.washingtonpost.com/wp-apps/imrs.php?src=https://img.washingtonpost.com/news/speaking-of-science/wp-content/uploads/sites/36/2015/10/as12-49-7278-1024x1024.jpg&w=1484
+    nodes:
+      - kind: text
+        ranges:
+          - text: another
diff --git a/test/rendering/fixtures/custom-block-void/output.html b/test/rendering/fixtures/custom-block-void/output.html
new file mode 100644
index 000000000..591712d02
--- /dev/null
+++ b/test/rendering/fixtures/custom-block-void/output.html
@@ -0,0 +1,13 @@
+
+<div contenteditable="true">
+  <div style="position:relative;">
+    <span style="position:absolute;top:0px;right:0px;bottom:0px;left:0px;text-indent:-9999px;">
+      <span>
+        <br>
+      </span>
+    </span>
+    <div contenteditable="false">
+      <img src="https://img.washingtonpost.com/wp-apps/imrs.php?src=https://img.washingtonpost.com/news/speaking-of-science/wp-content/uploads/sites/36/2015/10/as12-49-7278-1024x1024.jpg&w=1484">
+    </div>
+  </div>
+</div>
diff --git a/test/rendering/fixtures/custom-mark/index.js b/test/rendering/fixtures/custom-mark/index.js
new file mode 100644
index 000000000..119a06836
--- /dev/null
+++ b/test/rendering/fixtures/custom-mark/index.js
@@ -0,0 +1,10 @@
+
+import React from 'react'
+
+const BOLD = {
+  fontWeight: 'bold'
+}
+
+export function renderMark(mark) {
+  if (mark.type == 'bold') return BOLD
+}
diff --git a/test/rendering/fixtures/custom-mark/input.yaml b/test/rendering/fixtures/custom-mark/input.yaml
new file mode 100644
index 000000000..e5830723f
--- /dev/null
+++ b/test/rendering/fixtures/custom-mark/input.yaml
@@ -0,0 +1,12 @@
+
+nodes:
+  - kind: block
+    type: default
+    nodes:
+      - kind: text
+        ranges:
+          - text: one
+          - text: two
+            marks:
+              - type: bold
+          - text: three
diff --git a/test/rendering/fixtures/custom-mark/output.html b/test/rendering/fixtures/custom-mark/output.html
new file mode 100644
index 000000000..46f6c9544
--- /dev/null
+++ b/test/rendering/fixtures/custom-mark/output.html
@@ -0,0 +1,10 @@
+
+<div contenteditable="true">
+  <div>
+    <span>
+      <span>one</span>
+      <span style="font-weight:bold;">two</span>
+      <span>three</span>
+    </span>
+  </div>
+</div>
diff --git a/test/rendering/fixtures/empty-text/index.js b/test/rendering/fixtures/empty-text/index.js
new file mode 100644
index 000000000..dbf0139ef
--- /dev/null
+++ b/test/rendering/fixtures/empty-text/index.js
@@ -0,0 +1,4 @@
+
+/**
+ * Nothing, pure defaults.
+ */
diff --git a/test/rendering/fixtures/empty-text/input.yaml b/test/rendering/fixtures/empty-text/input.yaml
new file mode 100644
index 000000000..bf22c57f4
--- /dev/null
+++ b/test/rendering/fixtures/empty-text/input.yaml
@@ -0,0 +1,8 @@
+
+nodes:
+  - kind: block
+    type: default
+    nodes:
+      - kind: text
+        ranges:
+          - text: ""
diff --git a/test/rendering/fixtures/empty-text/output.html b/test/rendering/fixtures/empty-text/output.html
new file mode 100644
index 000000000..ab6f37ef0
--- /dev/null
+++ b/test/rendering/fixtures/empty-text/output.html
@@ -0,0 +1,8 @@
+
+<div contenteditable="true">
+  <div>
+    <span>
+      <span><br></span>
+    </span>
+  </div>
+</div>
diff --git a/test/rendering/index.js b/test/rendering/index.js
index 8189e3a6b..a14d7b336 100644
--- a/test/rendering/index.js
+++ b/test/rendering/index.js
@@ -52,8 +52,9 @@ function clean(html) {
   $('*').each((i, el) => {
     $(el).removeAttr('data-key')
     $(el).removeAttr('data-offset-key')
-    $(el).removeAttr('style')
   })
 
+  $('[contenteditable]').removeAttr('style')
+
   return $.html()
 }