1 files changed, 26 insertions, 0 deletions
diff --git a/testing/web-platform/tests/resources/webidl2/test/widlproc/test/valid/xml/uniontype.widlprocxml b/testing/web-platform/tests/resources/webidl2/test/widlproc/test/valid/xml/uniontype.widlprocxml
new file mode 100644
index 000000000..7d0880799
--- /dev/null
+++ b/testing/web-platform/tests/resources/webidl2/test/widlproc/test/valid/xml/uniontype.widlprocxml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE Definitions SYSTEM "widlprocxml.dtd">
+<Definitions>
+  <webidl>interface Union {
+ attribute (float or (Date or <ref>Event</ref>) or (<ref>Node</ref> or DOMString)?) test;
+};</webidl>
+  <Interface name="Union" id="::Union">
+    <webidl>interface Union {
+ attribute (float or (Date or <ref>Event</ref>) or (<ref>Node</ref> or DOMString)?) test;
+};</webidl>
+    <Attribute name="test" id="::Union::test">
+      <webidl> attribute (float or (Date or <ref>Event</ref>) or (<ref>Node</ref> or DOMString)?) test;</webidl>
+      <Type type="union">
+        <Type type="float"/>
+        <Type type="union">
+          <Type type="Date"/>
+          <Type name="Event"/>
+        </Type>
+        <Type type="union" nullable="nullable">
+          <Type name="Node"/>
+          <Type type="DOMString"/>
+        </Type>
+      </Type>
+    </Attribute>
+  </Interface>
+</Definitions>