0g-storage-node/tests/sync_chunks_test.py

#!/usr/bin/env python3

import random

from test_framework.test_framework import TestFramework
from utility.submission import data_to_segments
from utility.utils import assert_equal, wait_until


class SyncChunksTest(TestFramework):
    """
    By default, auto_sync_enabled and sync_file_on_announcement_enabled are both false,
    and chunks sync should be triggered by rpc.
    """

    def setup_params(self):
        self.num_nodes = 2

        # enable find chunks topic
        for i in range(self.num_nodes):
            self.zgs_node_configs[i] = {"network_find_chunks_enabled": True}

    def run_test(self):
        client1 = self.nodes[0]
        client2 = self.nodes[1]

        # Prepare 3 segments to upload
        chunk_data = random.randbytes(256 * 1024 * 3)
        data_root = self.__submit_file__(chunk_data)

        # Ensure log entry sync from blockchain node
        wait_until(lambda: client1.zgs_get_file_info(data_root) is not None)
        assert_equal(client1.zgs_get_file_info(data_root)["finalized"], False)

        # Upload only 2nd segment to storage node
        segments = data_to_segments(chunk_data)
        self.log.info(
            "segments: %s", [(s["root"], s["index"], s["proof"]) for s in segments]
        )
        assert client1.zgs_upload_segment(segments[1]) is None

        # segment 0 is not able to download
        assert client1.zgs_download_segment_decoded(data_root, 0, 1024) is None
        # segment 1 is available to download
        assert_equal(
            client1.zgs_download_segment_decoded(data_root, 1024, 2048),
            chunk_data[1024 * 256 : 2048 * 256],
        )
        # segment 2 is not able to download
        assert client1.zgs_download_segment_decoded(data_root, 2048, 3072) is None

        # Segment 1 should not be able to download on node 2
        wait_until(lambda: client2.zgs_get_file_info(data_root) is not None)
        assert_equal(client2.zgs_get_file_info(data_root)["finalized"], False)
        assert client2.zgs_download_segment_decoded(data_root, 1024, 2048) is None

        # Restart node 1 to check if the proof nodes are persisted.
        self.stop_storage_node(0)
        self.start_storage_node(0)
        self.nodes[0].wait_for_rpc_connection()

        # Trigger chunks sync by rpc
        assert client2.admin_start_sync_chunks(0, 1024, 2048) is None
        wait_until(lambda: client2.sync_status_is_completed_or_unknown(0))
        wait_until(
            lambda: client2.zgs_download_segment_decoded(data_root, 1024, 2048)
            is not None
        )

        # Validate data
        assert_equal(
            client2.zgs_download_segment_decoded(data_root, 1024, 2048),
            chunk_data[1024 * 256 : 2048 * 256],
        )


if __name__ == "__main__":
    SyncChunksTest().main()