diff --git a/tests/il.sh b/tests/il.sh
new file mode 100755
index 00000000..9c17985b
--- /dev/null
+++ b/tests/il.sh
@@ -0,0 +1,104 @@
+#!/bin/sh
+
+# fill space
+PL=1
+for _ in $(seq 0 23); do
+    PL=$((PL+1))
+    if [ $PL -gt 9 ] ; then
+        PL=1
+    fi
+    printf '%s' "$PL"
+    for _ in $(seq 2 $PL); do
+        printf '#'
+    done
+    PR=$((9 - PL))
+    for _ in $(seq 0 6); do
+        printf '\033[0;1m\-'
+        printf '\033[0;46;1;4m/'
+        printf '\033[0;46;1;4m|'
+        printf '\033[0;1;4;7m\\'
+        printf '\033[0m~'
+        printf '\033[0;1m_'
+        printf '\033[0;31;7m>'
+        printf '\033[0;31;4;7m^'
+        printf '\033[0;1;7m<'
+    done
+    printf '\033[0m'
+    for _ in $(seq 1 $PR); do
+        printf '#'
+    done
+    printf '%s' "$PR"
+done
+
+# set color
+printf '\033[43;32;3m'
+
+# move
+printf '\033[1;10H'
+# IL 0
+printf '\033[0L1'
+# move
+printf '\033[3;10H'
+# IL default
+printf '\033[L2'
+# move
+printf '\033[5;10H'
+# IL 2
+printf '\033[2L3'
+
+
+# set top/bottom margins:
+printf '\033[8;14r'
+# allow left/right margins
+printf '\033[?69h'
+# set left/right margins:
+printf '\033[5;75s'
+
+# move
+printf '\033[7;10H'
+# outside margins (top), do nothing
+printf '\033[L4'
+# move
+printf '\033[8;4H'
+# outside margins(left), do nothing
+printf '\033[L5'
+# move
+printf '\033[15;10H'
+# outside margins(bottom), do nothing
+printf '\033[L6'
+# move
+printf '\033[8;76H'
+# outside margins(right), do nothing
+printf '\033[L7'
+
+# move
+printf '\033[9;10H'
+# IL 0
+printf '\033[0L8'
+# move
+printf '\033[11;10H'
+# IL default
+printf '\033[L9'
+# move
+printf '\033[13;10H'
+# IL 2
+printf '\033[6L10'
+
+
+# set top/bottom margins:
+printf '\033[16;22r'
+# restrict cursor
+printf '\033[?6h'
+
+# move
+printf '\033[2;4H'
+# IL 0
+printf '\033[0L11'
+# move
+printf '\033[4;4H'
+# IL default
+printf '\033[L12'
+# move
+printf '\033[6;4H'
+# IL 2
+printf '\033[6L13'