diff --git a/test/rss_thread_watch/filter_test.clj b/test/rss_thread_watch/filter_test.clj
new file mode 100644
index 0000000..3924c35
--- /dev/null
+++ b/test/rss_thread_watch/filter_test.clj
@@ -0,0 +1,17 @@
+(ns rss-thread-watch.filter-test
+  (:require [clojure.test :refer :all]
+            [rss-thread-watch.filters :refer :all]))
+
+(def thread {:title "This is a thread TiTle wItH some extRa text"
+             :no 928398237932
+             :chod 92})
+
+
+(deftest filters
+  (testing "Case sensitive filter"
+    (is (case-sensitive-filter thread ["TiTle"]))
+    (is (= (case-sensitive-filter thread ["TITLE"]) nil)))
+  (testing "Case insensitive filter"
+    (is (case-insensitive-filter thread ["TiTle"]))
+    (is (case-insensitive-filter thread ["with"]))))
+