1 files changed, 11 insertions, 3 deletions
diff --git a/idlc/test/parser/constant.tests b/idlc/test/parser/constant.tests
index 505a8c2b1588..49183d4d1c18 100644
--- a/idlc/test/parser/constant.tests
+++ b/idlc/test/parser/constant.tests
@@ -79,9 +79,9 @@ constants C {
     const byte C1 = -128;
     const byte C2 = -0200;
     const byte C3 = -0x80;
-    const byte C4 = 255;
-    const byte C5 = 0377;
-    const byte C6 = 0xFF;
+    const byte C4 = 127;
+    const byte C5 = 0177;
+    const byte C6 = 0x7F;
     const short C7 = -32768;
     const short C8 = -0100000;
     const short C9 = -0x8000;
@@ -118,6 +118,14 @@ constants C {
 };
 
 
+EXPECT NEW-FAILURE "constant.tests 8a":
+constants C {
+    const byte C4 = 255;
+    const byte C5 = 0377;
+    const byte C6 = 0xFF;
+};
+
+
 EXPECT FAILURE "constant.tests 9":
 constants C { const byte C1 = -129; };