diff --git a/tests/test.lisp b/tests/test.lsp
similarity index 81%
rename from tests/test.lisp
rename to tests/test.lsp
index 63e7a6d..d17b390 100644
--- a/tests/test.lisp
+++ b/tests/test.lsp
@@ -2,6 +2,19 @@
 
 (print "Test starts")
 
+(print "result of (and (> 2 1) (> 2 1)): " (and (> 2 1) (> 2 1)))
+(print "result of (or (> 2 1) (> 2 1)):  " (or (> 2 1) (> 2 1)))
+(print "result of (and (> 2 1) (> 1 2)): " (and (> 2 1) (> 1 2)))
+(print "result of (or (> 2 1) (> 1 2)):  " (or (> 2 1) (> 1 2)))
+(print "result of (and (> 1 1) (> 1 2)): " (and (> 1 1) (> 1 2)))
+(print "result of (or (> 1 1) (> 2 1)):  " (or (> 1 1) (> 1 2)))
+
+
+(print "(member '(1 2 3) 1:" (member '(1 2 3) 1))
+(print "(member '(1 2 3) 3:" (member '(1 2 3) 3))
+(print "(member '(1 2 3) 30:" (member '(1 2 3) 30))
+
+
 (defun fact (n)
    (if (<= n 1)
       1
@@ -24,8 +37,7 @@
 
 (define json_list (parse-json "{\"k1\":\"v1\", \"k2\":42, \"k3\":[\"a\",123,true,false,null]}"))
 (print json_list)
-(for x json_list
-    (print x))
+(for x json_list (print x))
 
 
 
@@ -47,7 +59,7 @@
 ; (write-file "tests/csv_data.csv" (last web_page))
 
 (define fdx_list (parse-csv (read-file "tests/csv_data.csv")))
-(print fdx_list)
+; (print fdx_list)
 
 
 
@@ -106,6 +118,10 @@
 (if (> 2 10)
     (print "2 > 10"))
 
+
+
+
+
 (define csv_list '())
 (for f (ls-dir "tests/divi")
      (if (regex-search? f "^divi.*\.csv$")
@@ -118,10 +134,15 @@
         )
      ))
 
-;; (for x csv_list
-;;     (print x))
+;; (for x csv_list (print x))
+
+(print "(len csv_list) : " (len csv_list))
+
+(define my_tickers '("WFC" "AIG"))
+
+; (print (filter (lambda (x) (= (first x) "CLX")) csv_list))
+(print (filter (lambda (x) (member my_tickers (first x))) csv_list))
 
-(print (len csv_list))
 
 
 (print "Test ends")
\ No newline at end of file