logos-blockchain-e2e-tests/tests/dos_robustness/dos_robustness.py

import pytest

from src.libs.common import delay, to_app_id, to_index
from src.libs.custom_logger import get_custom_logger
from src.steps.da import StepsDataAvailability
from src.test_data import DATA_TO_DISPERSE

logger = get_custom_logger(__name__)


class TestDosRobustness(StepsDataAvailability):
    main_nodes = []

    @pytest.mark.usefixtures("setup_2_node_cluster")
    def test_spam_protection_valid_uploads(self, setup_2_node_cluster):
        num_samples = len(DATA_TO_DISPERSE)
        missing_dispersals = num_samples
        for i in range(num_samples):
            try:
                self.disperse_data(DATA_TO_DISPERSE[i], to_app_id(1), to_index(0), timeout_duration=0)
                missing_dispersals -= 1
            except Exception as ex:
                logger.error(f"Dispersal #{i+1} was not successful with error {ex}")
                break

            delay(0.1)

        assert missing_dispersals == 0, f"{missing_dispersals} dispersals were not successful"

    @pytest.mark.usefixtures("setup_2_node_cluster")
    def test_spam_protection_single_burst(self, setup_2_node_cluster):
        successful_dispersals = 0
        for i in range(1000):
            try:
                self.disperse_data(DATA_TO_DISPERSE[0], to_app_id(1), to_index(0), timeout_duration=0)
                successful_dispersals = i
            except Exception as ex:
                logger.debug(f"Dispersal #{i+1} was not successful with error {ex}")
                break

        assert successful_dispersals < 1000, "All 1000 consecutive dispersals were successful without any constraint"