1 files changed, 46 insertions, 0 deletions
diff --git a/testing/web-platform/tests/WebIDL/valid/xml/nullableobjects.widlprocxml b/testing/web-platform/tests/WebIDL/valid/xml/nullableobjects.widlprocxml
new file mode 100644
index 000000000..22d9fdd25
--- /dev/null
+++ b/testing/web-platform/tests/WebIDL/valid/xml/nullableobjects.widlprocxml
@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE Definitions SYSTEM "widlprocxml.dtd">
+<Definitions>
+  <webidl>interface A {
+};
+interface B {
+};
+interface C {
+  void f(<ref>A</ref>? x);
+  void f(<ref>B</ref>? x);
+
+};</webidl>
+  <Interface name="A" id="::A">
+    <webidl>interface A {
+};</webidl>
+  </Interface>
+  <Interface name="B" id="::B">
+    <webidl>interface B {
+};</webidl>
+  </Interface>
+  <Interface name="C" id="::C">
+    <webidl>interface C {
+  void f(<ref>A</ref>? x);
+  void f(<ref>B</ref>? x);
+
+};</webidl>
+    <Operation name="f" id="::C::f">
+      <webidl>  void f(<ref>A</ref>? x);</webidl>
+      <Type type="void"/>
+      <ArgumentList>
+        <Argument name="x">
+          <Type name="A" nullable="nullable"/>
+        </Argument>
+      </ArgumentList>
+    </Operation>
+    <Operation name="f" id="::C::f">
+      <webidl>  void f(<ref>B</ref>? x);</webidl>
+      <Type type="void"/>
+      <ArgumentList>
+        <Argument name="x">
+          <Type name="B" nullable="nullable"/>
+        </Argument>
+      </ArgumentList>
+    </Operation>
+  </Interface>
+</Definitions>