Added unit test for BASE64 script.

Author: Lethja

test/BASE64/BASE64.LUA

@@ -0,0 +1 @@
+../../util/BASE64.LUA

test/BASE64/test.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env sh
+set -e
+INTERP=${INTERP:-lua}
+TEST="BASE64 ENCODE"
+SCRIPT="BASE64.LUA"
+
+GNU=$(base64 $SCRIPT)
+LUA=$($INTERP $SCRIPT $SCRIPT)
+
+if [ "$GNU" = "$LUA" ]; then
+  echo "$TEST: PASS"
+else
+  echo "$TEST: FAIL"
+  exit 1
+fi
+
+TEST="BASE64 DECODE"
+
+LUA=$(echo $GNU | $INTERP $SCRIPT -d)
+GNU=$(cat $SCRIPT)
+
+if [ "$GNU" = "$LUA" ]; then
+  echo "$TEST: PASS"
+  exit 0
+else
+  echo "$TEST: FAIL"
+  exit 1
+fi