Helper function for html validation

bookwyrm/tests/validate_html.py

@@ -0,0 +1,20 @@
+""" html validation on rendered templates """
+from tidylib import tidy_document
+
+def validate_html(html):
+    """ run tidy on html """
+    _, errors = tidy_document(
+        html.content,
+        options={
+            "drop-empty-elements": False,
+            "warn-proprietary-attributes": False,
+        },
+    )
+    # idk how else to filter out these unescape amp errs
+    errors = "\n".join(
+        e
+        for e in errors.split("\n")
+        if "&book" not in e and "id and name attribute" not in e
+    )
+    if errors:
+        raise Exception(errors)