diff --git a/tests/grub_script_functions.in b/tests/grub_script_functions.in
index 234a1be13..3e69014d6 100644
--- a/tests/grub_script_functions.in
+++ b/tests/grub_script_functions.in
@@ -68,6 +68,11 @@ function fstar {
   do
     echo fstar $f
   done
+
+  for f in aaa$*bbb
+  do
+    echo fstar $f
+  done
 }
 
 fstar
@@ -80,6 +85,16 @@ function fdqstar {
   do
     echo fdqstar $f
   done
+
+  for f in aaa"$*"bbb
+  do
+    echo fdqstar $f
+  done
+
+  for f in "aaa$*bbb"
+  do
+    echo fdqstar $f
+  done
 }
 
 fdqstar
@@ -92,6 +107,11 @@ function fat {
   do
     echo fat $f
   done
+
+  for f in aaa$@bbb
+  do
+    echo fat $f
+  done
 }
 
 fat
@@ -106,6 +126,16 @@ function fdqat {
   do
     echo fdqat $f
   done
+
+  for f in aaa"$@"bbb
+  do
+    echo fdqat $f
+  done
+
+  for f in "aaa$@bbb"
+  do
+    echo fdqat $f
+  done
 }
 
 # fdqat # this case needs special handling, lets ignore till we really need it.