made test for index_of_coincidence

Author: nikos258

ciphers/break_vigenere.py

@@ -208,9 +208,15 @@ def find_key_from_vigenere_cipher(ciphertext: str) -> str:
 
 
 if __name__ == "__main__":
-    pass
+    print("")
     # # how to execute
-    # with open("ciphertext.txt") as file:
+    # with open("out.txt") as file:
     #     ciphertext = file.read()
     #     key = find_key_from_vigenere_cipher(ciphertext)
     #     print(key)
+
+
+
+# ---------- TESTS ----------
+# def test_index_of_coincidence(f)
+

ciphers/tests/test.py

@@ -0,0 +1,9 @@
+import unittest
+from ciphers.break_vigenere import *
+
+
+class TestBreakVigenere(unittest.TestCase):
+    def test_index_of_coincidence(self):
+        dictionary = {'a': 5, 'b': 1, 'c': 4}
+        ic = index_of_coincidence(dictionary, 100)
+        self.assertAlmostEqual(ic, 0.0032323232323232)