Update elf.py

Author: micaelalex

hashes/elf.py

@@ -1,6 +1,11 @@
-def ELFHash(data):
+def elf_hash(data):
     """
     Implementation of ElfHash Algorithm, a variant of PJW hash function.
+
+    Returns:
+        [int] -- [32 bit binary int]
+    >>> elf_hash('lorem ipsum')
+    '253956621'
     """
     hash = x = i = 0
     for i in range(len(data)):
@@ -9,4 +14,9 @@ def ELFHash(data):
         if x != 0:
             hash ^= (x >> 24)
         hash &= ~x
-    return hash
+    return hash
+
+if __name__ == "__main__":
+    import doctest
+
+    doctest.testmod()