1 files changed, 13 insertions, 0 deletions
diff --git a/test/SemaObjC/duplicate-property-class-extension.m b/test/SemaObjC/duplicate-property-class-extension.m
new file mode 100644
index 000000000000..bdf4786c76e8
--- /dev/null
+++ b/test/SemaObjC/duplicate-property-class-extension.m
@@ -0,0 +1,13 @@
+// RUN: %clang_cc1  -fsyntax-only -verify %s
+
+@interface Foo 
+@property (readonly) char foo;
+@end
+
+@interface Foo ()
+@property (readwrite) char foo; // expected-note {{property declared here}}
+@end
+
+@interface Foo ()
+@property (readwrite) char foo;	// expected-error {{property has a previous declaration}}
+@end