1 files changed, 49 insertions, 0 deletions
diff --git a/dom/bindings/parser/tests/test_identifier_conflict.py b/dom/bindings/parser/tests/test_identifier_conflict.py
new file mode 100644
index 0000000000..1f841056a1
--- /dev/null
+++ b/dom/bindings/parser/tests/test_identifier_conflict.py
@@ -0,0 +1,49 @@
+# Import the WebIDL module, so we can do isinstance checks and whatnot
+import WebIDL
+
+
+def WebIDLTest(parser, harness):
+    try:
+        parser.parse(
+            """
+            enum Foo { "a" };
+            interface Foo;
+        """
+        )
+        results = parser.finish()
+        harness.ok(False, "Should fail to parse")
+    except Exception as e:
+        harness.ok(
+            "Name collision" in e.message, "Should have name collision for interface"
+        )
+
+    parser = parser.reset()
+    try:
+        parser.parse(
+            """
+            dictionary Foo { long x; };
+            enum Foo { "a" };
+        """
+        )
+        results = parser.finish()
+        harness.ok(False, "Should fail to parse")
+    except Exception as e:
+        harness.ok(
+            "Name collision" in e.message, "Should have name collision for dictionary"
+        )
+
+    parser = parser.reset()
+    try:
+        parser.parse(
+            """
+            enum Foo { "a" };
+            enum Foo { "b" };
+        """
+        )
+        results = parser.finish()
+        harness.ok(False, "Should fail to parse")
+    except Exception as e:
+        harness.ok(
+            "Multiple unresolvable definitions" in e.message,
+            "Should have name collision for dictionary",
+        )