Added testing of streaming multiple blocks from gossip peer

tests/gossip-unittests/test_server_diffuse_mny.py

@@ -0,0 +1,78 @@
+import os, uuid
+TEST_DIR = 'testdata/%s-%s' % (str(uuid.uuid4())[:12], os.path.basename(__file__)) + '/'
+print("Test directory:", TEST_DIR)
+os.environ["ONIONR_HOME"] = TEST_DIR
+
+from threading import Thread
+import asyncio
+import unittest
+import sys
+sys.path.append(".")
+sys.path.append("src/")
+
+from ordered_set import OrderedSet
+import onionrblocks
+
+import blockdb
+from gossip.server import gossip_server
+from filepaths import gossip_server_socket_file
+
+
+BLOCK_MAX_SIZE = 1024 * 2000
+BLOCK_MAX_SIZE_LEN = len(str(BLOCK_MAX_SIZE))
+BLOCK_ID_SIZE = 128
+BLOCK_STREAM_OFFSET_DIGITS = 8
+
+
+class OnionrDiffuseMany(unittest.TestCase):
+
+
+    def test_many(self):
+
+        Thread(target=gossip_server, daemon=True).start()
+        blocks = []
+        for _ in range(10):
+            bl = onionrblocks.blockcreator.create_anonvdf_block(
+                b"my test block" + os.urandom(16), b"txt", 2800)
+            blockdb.add_block_to_db(bl)
+            blocks.append(bl)
+
+        async def diffuse_client():
+            reader, writer = await asyncio.open_unix_connection(
+                gossip_server_socket_file)
+
+            # tell we want to stream blocks
+            writer.write(int(4).to_bytes(1, 'big'))
+            await writer.drain()
+
+            # tell timestamp offset
+            writer.write('0'.zfill(BLOCK_STREAM_OFFSET_DIGITS).encode('utf-8'))
+            await writer.drain()
+
+            # Read blocks from offset
+            for i in range(10):
+                bl_id = await reader.readexactly(BLOCK_ID_SIZE)
+                for bl in blocks:
+                    if bl.id == bl_id:
+                        break
+
+                # tell we want the block
+                writer.write(int(1).to_bytes(1, 'big'))
+                await writer.drain()
+
+                # check block size
+                self.assertEqual(
+                    len(bl.raw),
+                    int((await reader.readexactly(BLOCK_MAX_SIZE_LEN)).decode('utf-8')))
+
+                self.assertEqual(bl.raw, await reader.readexactly(len(bl.raw)))
+                writer.write(int(1).to_bytes(1, 'big'))
+                await writer.drain()
+
+            writer.write(int(0).to_bytes(1, 'big'))
+            await writer.drain()
+
+
+        asyncio.run(diffuse_client())
+
+unittest.main()

tests/gossip-unittests/test_server_diffuse_one.py

@@ -26,6 +26,7 @@ BLOCK_STREAM_OFFSET_DIGITS = 8
 
 class OnionrServerDiffuseTest(unittest.TestCase):
 
+
     def test_one_block(self):
 
         Thread(target=gossip_server, daemon=True).start()
@@ -45,6 +46,17 @@ class OnionrServerDiffuseTest(unittest.TestCase):
 
             self.assertEqual(bl.id, await reader.readexactly(BLOCK_ID_SIZE))
 
+            # we want the block
+            writer.write(int(1).to_bytes(1, 'big'))
+            assert writer.drain()
+
+            # check block size
+            self.assertEqual(
+                len(bl.raw),
+                int((await reader.readexactly(BLOCK_MAX_SIZE_LEN)).decode('utf-8')))
+
+            self.assertEqual(bl.raw, await reader.readexactly(len(bl.raw)))
+
 
         asyncio.run(diffuse_client())