Added unit test for digest -> address.

Also renamed `address_from_digest` to `address_from_digest_trits`.

Author: todofixthis

src/iota/crypto/addresses.py

@@ -256,7 +256,7 @@ def create_iterator(self, start=0, step=1):
       yield address
 
   @staticmethod
-  def address_from_digest(digest_trits, key_index):
+  def address_from_digest_trits(digest_trits, key_index):
     # type: (List[int], int) -> Address
     """
     Generates an address from a private key digest.
@@ -279,13 +279,13 @@ def _generate_address(self, key_iterator):
 
     Used in the event of a cache miss.
     """
-    return self.address_from_digest(*self._get_digest_params(key_iterator))
+    return self.address_from_digest_trits(*self._get_digest_params(key_iterator))
 
   @staticmethod
   def _get_digest_params(key_iterator):
     # type: (KeyIterator) -> Tuple[List[int], int]
     """
-    Extracts parameters for :py:meth:`address_from_digest`.
+    Extracts parameters for :py:meth:`address_from_digest_trits`.
 
     Split into a separate method so that it can be mocked during unit
     tests.

test/crypto/addresses_test.py

@@ -46,6 +46,26 @@ def setUp(self):
         b'CFANWBQFGMFKITZBJDSYLGXYUIQVCMXFWSWFRNHRV'
       )
 
+  # noinspection SpellCheckingInspection
+  def test_address_from_digest(self):
+    """
+    Generating an address from a private key digest.
+    """
+    digest =\
+      Hash(
+        b'ABQXVJNER9MPMXMBPNMFBMDGTXRWSYHNZKGAGUOI'
+        b'JKOJGZVGHCUXXGFZEMMGDSGWDCKJXO9ILLFAKGGZE'
+      )
+
+    self.assertEqual(
+      AddressGenerator.address_from_digest_trits(digest.as_trits(), 0),
+
+      Address(
+        b'QLOEDSBXXOLLUJYLEGKEPYDRIJJTPIMEPKMFHUVJ'
+        b'MPMLYYCLPQPANEVDSERQWPVNHCAXYRLAYMBHJLWWR'
+      ),
+    )
+
   def test_get_addresses_single(self):
     """
     Generating a single address.