diff --git a/tests/unit/db/__init__.py b/tests/unit/db/__init__.py
new file mode 100644
index 000000000..e69de29bb
diff --git a/tests/unit/db/test_event.py b/tests/unit/db/test_event.py
new file mode 100644
index 000000000..982bbadc5
--- /dev/null
+++ b/tests/unit/db/test_event.py
@@ -0,0 +1,11 @@
+from unittest import TestCase
+
+from lbry.db.query_context import Event
+
+
+class TestDBEvents(TestCase):
+
+    def test_enum(self):
+        self.assertEqual(Event.BLOCK_READ.value, 1)
+        self.assertEqual(Event.BLOCK_READ.label, "blockchain.sync.block.read")
+        self.assertEqual(Event(1).label, "blockchain.sync.block.read")
diff --git a/tests/unit/db/test_result.py b/tests/unit/db/test_result.py
new file mode 100644
index 000000000..47bcd7dd7
--- /dev/null
+++ b/tests/unit/db/test_result.py
@@ -0,0 +1,21 @@
+from unittest import TestCase
+
+from lbry.db import Result
+
+
+class TestResult(TestCase):
+
+    def test_result(self):
+        result = Result([], 0)
+        self.assertFalse(result)
+        self.assertEqual(0, len(result))
+        self.assertEqual(0, result.total)
+
+        result = Result(['a', 'b', 'c'], 100)
+        self.assertTrue(result)
+        self.assertEqual(3, len(result))
+        self.assertEqual(100, result.total)
+        self.assertEqual('b', result[1])
+        self.assertEqual(['a', 'b', 'c'], [o for o in result])
+        self.assertEqual(['a', 'b', 'c'], list(result))
+        self.assertEqual("['a', 'b', 'c']", repr(result))
diff --git a/tests/unit/db/test_sync.py b/tests/unit/db/test_sync.py
new file mode 100644
index 000000000..51e7248c9
--- /dev/null
+++ b/tests/unit/db/test_sync.py
@@ -0,0 +1,78 @@
+from lbry.testcase import UnitDBTestCase
+
+
+class TestClientDBSync(UnitDBTestCase):
+
+    async def asyncSetUp(self):
+        await super().asyncSetUp()
+        await self.add(self.coinbase())
+
+    async def test_process_inputs(self):
+        await self.add(self.tx())
+        await self.add(self.tx())
+        txo1, txo2a, txo2b, txo3a, txo3b = self.outputs
+        self.assertEqual([
+            (txo1.id, None),
+            (txo2b.id, None),
+        ], await self.get_txis())
+        self.assertEqual([
+            (txo1.id, False),
+            (txo2a.id, False),
+            (txo2b.id, False),
+            (txo3a.id, False),
+            (txo3b.id, False),
+        ], await self.get_txos())
+        await self.db.process_all_things_after_sync()
+        self.assertEqual([
+            (txo1.id, txo1.get_address(self.ledger)),
+            (txo2b.id, txo2b.get_address(self.ledger)),
+        ], await self.get_txis())
+        self.assertEqual([
+            (txo1.id, True),
+            (txo2a.id, False),
+            (txo2b.id, True),
+            (txo3a.id, False),
+            (txo3b.id, False),
+        ], await self.get_txos())
+
+    async def test_process_claims(self):
+        claim1 = await self.add(self.create_claim())
+        await self.db.process_all_things_after_sync()
+        self.assertEqual([claim1.claim_id], await self.get_claims())
+
+        claim2 = await self.add(self.create_claim())
+        self.assertEqual([claim1.claim_id], await self.get_claims())
+        await self.db.process_all_things_after_sync()
+        self.assertEqual([claim1.claim_id, claim2.claim_id], await self.get_claims())
+
+        claim3 = await self.add(self.create_claim())
+        claim4 = await self.add(self.create_claim())
+        await self.db.process_all_things_after_sync()
+        self.assertEqual([
+            claim1.claim_id,
+            claim2.claim_id,
+            claim3.claim_id,
+            claim4.claim_id,
+        ], await self.get_claims())
+
+        await self.add(self.abandon_claim(claim4))
+        await self.db.process_all_things_after_sync()
+        self.assertEqual([
+            claim1.claim_id, claim2.claim_id, claim3.claim_id
+        ], await self.get_claims())
+
+        # create and abandon in same block
+        claim5 = await self.add(self.create_claim())
+        await self.add(self.abandon_claim(claim5))
+        await self.db.process_all_things_after_sync()
+        self.assertEqual([
+            claim1.claim_id, claim2.claim_id, claim3.claim_id
+        ], await self.get_claims())
+
+        # create and abandon in different blocks but with bulk sync
+        claim6 = await self.add(self.create_claim())
+        await self.add(self.abandon_claim(claim6))
+        await self.db.process_all_things_after_sync()
+        self.assertEqual([
+            claim1.claim_id, claim2.claim_id, claim3.claim_id
+        ], await self.get_claims())
diff --git a/tests/unit/db/test_utils.py b/tests/unit/db/test_utils.py
new file mode 100644
index 000000000..8229006f4
--- /dev/null
+++ b/tests/unit/db/test_utils.py
@@ -0,0 +1,15 @@
+import unittest
+from lbry.db.utils import chunk
+
+
+class TestChunk(unittest.TestCase):
+
+    def test_chunk(self):
+        self.assertEqual(list(chunk([], 3)), [])
+        self.assertEqual(list(chunk(['a'], 3)), [['a']])
+        self.assertEqual(list(chunk(['a', 'b', 'c'], 3)), [['a', 'b', 'c']])
+        self.assertEqual(list(chunk(['a', 'b', 'c', 'd'], 3)), [['a', 'b', 'c'], ['d']])
+        self.assertEqual(
+            list(chunk(['a', 'b', 'c', 'd', 'e', 'f', 'g'], 3)),
+            [['a', 'b', 'c'], ['d', 'e', 'f'], ['g']]
+        )