diff --git a/tests/test_core.py b/tests/test_core.py
index 94fe91e9..c53bc7e2 100644
--- a/tests/test_core.py
+++ b/tests/test_core.py
@@ -32,9 +32,7 @@ def test_bigchain_class_default_initialization(config):
     from bigchaindb.core import Bigchain
     from bigchaindb.consensus import BaseConsensusRules
     bigchain = Bigchain()
-    assert bigchain.host == config['database']['host']
-    assert bigchain.port == config['database']['port']
-    assert bigchain.dbname == config['database']['name']
+    assert bigchain.connection
     assert bigchain.me == config['keypair']['public']
     assert bigchain.me_private == config['keypair']['private']
     assert bigchain.nodes_except_me == config['keyring']
@@ -43,16 +41,16 @@ def test_bigchain_class_default_initialization(config):
 
 def test_bigchain_class_initialization_with_parameters(config):
     from bigchaindb.core import Bigchain
+    from bigchaindb.backend.connection import Connection
     from bigchaindb.consensus import BaseConsensusRules
     init_kwargs = {
         'public_key': 'white',
         'private_key': 'black',
         'keyring': ['key_one', 'key_two'],
     }
-    bigchain = Bigchain(**init_kwargs)
-    assert bigchain.host == init_kwargs['host']
-    assert bigchain.port == init_kwargs['port']
-    assert bigchain.dbname == init_kwargs['dbname']
+    connection = Connection()
+    bigchain = Bigchain(**init_kwargs, connection=connection)
+    assert bigchain.connection == connection
     assert bigchain.me == init_kwargs['public_key']
     assert bigchain.me_private == init_kwargs['private_key']
     assert bigchain.nodes_except_me == init_kwargs['keyring']