def test_headers_message_known_blocks(self): cblock1 = CBlock(nNonce=1) block1 = Block(cblock1, None) cblock2 = CBlock(nNonce=2) block2 = Block(cblock2, None) self.chain.blocks = {block1.hash(): block1, block2.hash(): block2} self.networking.request_blocks = MagicMock() message = messages.msg_headers() message.headers = [cblock1.get_header(), cblock2.get_header()] self.networking.headers_message(self.public_connection1, message) self.assertFalse(self.public_connection1.send.called) self.assertFalse(self.chain.process_header.called) self.assertFalse(self.private_connection.send.called) self.assertTrue(self.networking.request_blocks.called) self.assertEqual(len(self.networking.request_blocks.call_args[0][1]), 0)