diff --git a/lbry/tests/unit/blob/test_blob_file.py b/lbry/tests/unit/blob/test_blob_file.py
index daadca847..28c6e061c 100644
--- a/lbry/tests/unit/blob/test_blob_file.py
+++ b/lbry/tests/unit/blob/test_blob_file.py
@@ -10,6 +10,22 @@ from lbry.blob.blob_manager import BlobManager
 from lbry.blob.blob_file import BlobFile, BlobBuffer, AbstractBlob
 
 
+class MockTransport(asyncio.Transport):
+    def __init__(self):
+        self.closed = asyncio.Event()
+        self.paused = asyncio.Event()
+        self._extra = {}
+
+    def close(self):
+        self.closed.set()
+
+    def pause_reading(self) -> None:
+        self.paused.set()
+
+    def resume_reading(self) -> None:
+        self.paused.clear()
+
+
 class TestBlob(AsyncioTestCase):
     blob_hash = "7f5ab2def99f0ddd008da71db3a3772135f4002b19b7605840ed1034c8955431bd7079549e65e6b2a3b9c17c773073ed"
     blob_bytes = b'1' * ((2 * 2 ** 20) - 1)
@@ -41,7 +57,7 @@ class TestBlob(AsyncioTestCase):
 
     async def _test_close_writers_on_finished(self, blob_class=AbstractBlob, blob_directory=None):
         blob = self._get_blob(blob_class, blob_directory=blob_directory)
-        writers = [blob.get_blob_writer('1.2.3.4', port) for port in range(5)]
+        writers = [blob.get_blob_writer(MockTransport()) for _ in range(5)]
         self.assertEqual(5, len(blob.writers))
 
         # test that writing too much causes the writer to fail with InvalidDataError and to be removed
@@ -137,14 +153,15 @@ class TestBlob(AsyncioTestCase):
         blob_directory = tempfile.mkdtemp()
         self.addCleanup(lambda: shutil.rmtree(blob_directory))
         blob = self._get_blob(BlobBuffer, blob_directory=blob_directory)
-        writer = blob.get_blob_writer('1.1.1.1', 1337)
+        transport = MockTransport()
+        writer = blob.get_blob_writer(transport)
         self.assertEqual(1, len(blob.writers))
         with self.assertRaises(OSError):
-            blob.get_blob_writer('1.1.1.1', 1337)
+            blob.get_blob_writer(transport)
         writer.close_handle()
-        self.assertTrue(blob.writers[('1.1.1.1', 1337)].closed())
-        writer = blob.get_blob_writer('1.1.1.1', 1337)
-        self.assertEqual(blob.writers[('1.1.1.1', 1337)], writer)
+        self.assertTrue(blob.writers[(transport)].closed())
+        writer = blob.get_blob_writer(transport)
+        self.assertEqual(blob.writers[transport], writer)
         writer.close_handle()
         await asyncio.sleep(0.000000001)  # flush callbacks
         self.assertEqual(0, len(blob.writers))