1 files changed, 17 insertions, 0 deletions
diff --git a/tests/classes/interface_constant_inheritance_001.phpt b/tests/classes/interface_constant_inheritance_001.phpt
new file mode 100644
index 0000000..f982a4a
--- /dev/null
+++ b/tests/classes/interface_constant_inheritance_001.phpt
@@ -0,0 +1,17 @@
+--TEST--
+Ensure an interface may not shadow an inherited constant. 
+--FILE--
+<?php
+interface I1 {
+	const FOO = 10;
+}
+
+interface I2 extends I1 {
+	const FOO = 10;
+}
+
+echo "Done\n";
+?>
+--EXPECTF--
+
+Fatal error: Cannot inherit previously-inherited or override constant FOO from interface I1 in %s on line 6