diff --git a/test/CodeCompletion/truncation.c b/test/CodeCompletion/truncation.c
new file mode 100644
index 0000000..b64b066
--- /dev/null
+++ b/test/CodeCompletion/truncation.c
@@ -0,0 +1,12 @@
+#include "truncation.c.h"
+
+struct 
+
+// RUN: clang-cc -fsyntax-only -code-completion-at=%s.h:4:8 -o - %s | FileCheck -check-prefix=CC1 %s &&
+// CHECK-CC1: X : 1
+// CHECK-NEXT-CC1: Y : 1
+// RUN: clang-cc -fsyntax-only -code-completion-at=%s:3:8 -o - %s | FileCheck -check-prefix=CC2 %s &&
+// CHECK-CC2: X : 1
+// CHECK-CC2: Xa : 1
+// CHECK-CC2: Y : 1
+// RUN: true