Added the test_hashes file that should have been in there already

tests/test_hashes.py

@@ -0,0 +1,12 @@
+import pytest
+import sys
+sys.path.append("./src/")
+import rainbow_generator
+import pearson
+
+
+def test_hashes():
+
+    assert pearson.hashN("CeQ",2)==b"\xFF\x99"
+    assert pearson.hashN("kjB",2)==b"\xAA\xAA"
+