Add filter to live instantiator, add filter start state

tests/base.py

@@ -1,13 +1,21 @@
+# standard imports
+import logging
 import unittest
 import tempfile
 import os
 #import pysqlite
 
+# external imports
+from chainlib.chain import ChainSpec
+
+# local imports
 from chainsyncer.db import dsn_from_config
 from chainsyncer.db.models.base import SessionBase
 
 script_dir = os.path.realpath(os.path.dirname(__file__))
 
+logging.basicConfig(level=logging.DEBUG)
+
 
 class TestBase(unittest.TestCase):
 
@@ -23,7 +31,7 @@ class TestBase(unittest.TestCase):
         SessionBase.poolable = False
         SessionBase.transactional = False
         SessionBase.procedural = False
-        SessionBase.connect(dsn, debug=True)
+        SessionBase.connect(dsn, debug=False)
 
         f = open(os.path.join(script_dir, '..', 'sql', 'sqlite', '1.sql'), 'r')
         sql = f.read()
@@ -39,6 +47,8 @@ class TestBase(unittest.TestCase):
         conn = SessionBase.engine.connect()
         conn.execute(sql)
 
+        self.chain_spec = ChainSpec('evm', 'foo', 42, 'bar')
+
     def tearDown(self):
         SessionBase.disconnect()
         os.unlink(self.db_path)

tests/test_database.py

@@ -0,0 +1,55 @@
+# standard imports
+import unittest
+
+# external imports
+from chainlib.chain import ChainSpec
+
+# local imports
+from chainsyncer.db.models.base import SessionBase
+from chainsyncer.db.models.filter import BlockchainSyncFilter
+from chainsyncer.backend import SyncerBackend
+
+# testutil imports
+from tests.base import TestBase
+
+class TestDatabase(TestBase):
+
+
+    def test_backend_live(self):
+        s = SyncerBackend.live(self.chain_spec, 42)
+        self.assertEqual(s.object_id, 1)
+        backend = SyncerBackend.first(self.chain_spec)
+        #SyncerBackend(self.chain_spec, sync_id)
+        self.assertEqual(backend.object_id, 1)
+
+        bogus_chain_spec = ChainSpec('bogus', 'foo', 13, 'baz')
+        sync_id = SyncerBackend.first(bogus_chain_spec)
+        self.assertIsNone(sync_id)
+
+
+    def test_backend_filter(self):
+        s = SyncerBackend.live(self.chain_spec, 42)
+
+        s.connect()
+        filter_id = s.db_object_filter.id
+        s.disconnect()
+
+        session = SessionBase.create_session()
+        o = session.query(BlockchainSyncFilter).get(filter_id)
+        self.assertEqual(len(o.flags), 0)
+        session.close()
+
+        for i in range(9):
+            s.register_filter(str(i))
+
+        s.connect()
+        filter_id = s.db_object_filter.id
+        s.disconnect()
+
+        session = SessionBase.create_session()
+        o = session.query(BlockchainSyncFilter).get(filter_id)
+        self.assertEqual(len(o.flags), 2)
+        session.close()
+
+if __name__ == '__main__':
+    unittest.main()