From ca4a07f766f7c59e200346bd257de2caf956e9e0 Mon Sep 17 00:00:00 2001
From: Lex Berezhny <lex@damoti.com>
Date: Wed, 20 Mar 2019 01:36:30 -0400
Subject: [PATCH] ledger.is_valid_address added

---
 torba/client/baseledger.py | 5 +++++
 torba/client/basescript.py | 2 +-
 torba/testcase.py          | 2 ++
 3 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/torba/client/baseledger.py b/torba/client/baseledger.py
index 721236e07..1f35fb2eb 100644
--- a/torba/client/baseledger.py
+++ b/torba/client/baseledger.py
@@ -153,6 +153,11 @@ class BaseLedger(metaclass=LedgerRegistry):
     def address_to_hash160(address):
         return Base58.decode(address)[1:21]
 
+    @classmethod
+    def is_valid_address(cls, address):
+        decoded = Base58.decode(address)
+        return decoded[0] == cls.pubkey_address_prefix
+
     @classmethod
     def public_key_to_address(cls, public_key):
         return cls.hash160_to_address(hash160(public_key))
diff --git a/torba/client/basescript.py b/torba/client/basescript.py
index a849a9346..560525c09 100644
--- a/torba/client/basescript.py
+++ b/torba/client/basescript.py
@@ -64,7 +64,7 @@ def push_data(data):
     else:
         yield BCDataStream.uint8.pack(OP_PUSHDATA4)
         yield BCDataStream.uint32.pack(size)
-    yield data
+    yield bytes(data)
 
 
 def read_data(token, stream):
diff --git a/torba/testcase.py b/torba/testcase.py
index 7e3913bb8..42390ee07 100644
--- a/torba/testcase.py
+++ b/torba/testcase.py
@@ -61,6 +61,8 @@ class AsyncioTestCase(unittest.TestCase):
     # Implementation inspired by discussion:
     #  https://bugs.python.org/issue32972
 
+    maxDiff = None
+
     async def asyncSetUp(self):  # pylint: disable=C0103
         pass