changedetection.io/changedetectionio/tests/test_notification_errors.py

import os
import time
from flask import url_for
from .util import set_original_response, set_modified_response, live_server_setup, wait_for_all_checks
import logging

def test_check_notification_error_handling(client, live_server, measure_memory_usage):

    live_server_setup(live_server)
    set_original_response()

    # Set a URL and fetch it, then set a notification URL which is going to give errors
    test_url = url_for('test_endpoint', _external=True)
    res = client.post(
        url_for("form_quick_watch_add"),
        data={"url": test_url, "tags": ''},
        follow_redirects=True
    )
    assert b"Watch added" in res.data

    wait_for_all_checks(client)
    set_modified_response()

    working_notification_url = url_for('test_notification_endpoint', _external=True).replace('http', 'json')
    broken_notification_url = "jsons://broken-url-xxxxxxxx123/test"

    res = client.post(
        url_for("edit_page", uuid="first"),
        # A URL with errors should not block the one that is working
        data={"notification_urls": f"{broken_notification_url}\r\n{working_notification_url}",
              "notification_title": "xxx",
              "notification_body": "xxxxx",
              "notification_format": "Text",
              "url": test_url,
              "tags": "",
              "title": "",
              "headers": "",
              "time_between_check-minutes": "180",
              "fetch_backend": "html_requests"},
        follow_redirects=True
    )
    assert b"Updated watch." in res.data

    found=False
    for i in range(1, 10):

        logging.debug("Fetching watch overview....")
        res = client.get(
            url_for("index"))

        if bytes("Notification error detected".encode('utf-8')) in res.data:
            found=True
            break

        time.sleep(1)

    assert found


    # The error should show in the notification logs
    res = client.get(
        url_for("notification_logs"))
    found_name_resolution_error = b"Temporary failure in name resolution" in res.data or b"Name or service not known" in res.data
    assert found_name_resolution_error

    # And the working one, which is after the 'broken' one should still have fired
    with open("test-datastore/notification.txt", "r") as f:
        notification_submission = f.read()
    os.unlink("test-datastore/notification.txt")
    assert 'xxxxx' in notification_submission

    client.get(url_for("form_delete", uuid="all"), follow_redirects=True)