diff --git a/tests/test_decomp.py b/tests/test_decomp.py
new file mode 100644
index 0000000..75bbf82
--- /dev/null
+++ b/tests/test_decomp.py
@@ -0,0 +1,29 @@
+"""
+author: deadc0de6 (https://github.com/deadc0de6)
+Copyright (c) 2017, deadc0de6
+
+Basic unittest for ls
+"""
+
+import unittest
+
+from catcli.decomp import Decomp
+
+
+class TestDecomp(unittest.TestCase):
+    """test ls"""
+
+    def test_list(self):
+        """test decomp formats"""
+        dec = Decomp()
+        formats = dec.get_formats()
+        self.assertTrue('zip' in formats)
+
+
+def main():
+    """entry point"""
+    unittest.main()
+
+
+if __name__ == '__main__':
+    main()