WIP crossroads on hex vs bytes interpretation

tests/common.py

@@ -1,5 +1,11 @@
+# standard imports
+import hashlib
+
 # local imports
-from chainqueue.cache import Cache
+from chainqueue.cache import (
+        Cache,
+        CacheTokenTx,
+        )
 
 
 class MockCounter:
@@ -38,3 +44,47 @@ class MockTokenCache(Cache):
 
     def count(self, cache_filter): 
         self.last_filter = cache_filter
+
+
+class MockCacheTokenTx(CacheTokenTx):
+
+    def deserialize(self, signed_tx):
+        h = hashlib.sha1()
+        h.update(signed_tx + b'\x01')
+        z = h.digest()
+        nonce = int.from_bytes(z[:4], 'big')
+        token_value = int.from_bytes(z[4:8], 'big')
+        value = int.from_bytes(z[8:12], 'big')
+        
+        h = hashlib.sha1()
+        h.update(z)
+        z = h.digest()
+        sender = z.hex()
+
+        h = hashlib.sha1()
+        h.update(z)
+        z = h.digest()
+        recipient = z.hex()
+
+        h = hashlib.sha1()
+        h.update(z)
+        z = h.digest()
+        token = z.hex()
+
+        h = hashlib.sha256()
+        h.update(z)
+        z = h.digest()
+        tx_hash = z.hex()
+
+        #tx = CacheTokenTx(normalizer=self.normalizer)
+        self.init(tx_hash, nonce, sender, recipient, value)
+        self.set('src_token', token)
+        self.set('dst_token', token)
+        self.set('src_value', token_value)
+        self.set('dst_value', token_value)
+        self.confirm(42, 13, 1024000)
+
+        return self
+
+
+