"""Unit tests for FeatureFmFacebook Decider."""

from unittest.mock import MagicMock

from garcon.activity import Activity

from feed_ingestion.flows.feature_fm_facebook.flow import Flow


def test_decider():
    """Test decider method."""
    activity_result = MagicMock()
    activity_result.result.get.return_value = False
    schedule = MagicMock()
    schedule.return_value = activity_result

    # list of activities
    activity_names = {
        'bootstrap',
        'load_staging_raw_table',
        'load_staging_fact_table',
        'load_fact_tables',
        'deduplicate_fact_table'}

    # test activities are called
    flow = Flow()
    flow.decider(schedule, {})
    scheduled_activities = set()
    for (name, activity), _ in schedule.call_args_list:
        assert name in activity_names
        assert isinstance(activity, Activity)
        scheduled_activities.add(name)
    assert scheduled_activities == activity_names

    # test flow stops if data is already ingested
    schedule.reset_mock()
    activity_result.result.get.return_value = {'stop': True}
    activity_names = {'bootstrap'}
    flow.decider(schedule, {})
    scheduled_activities = set()
    for (name, activity), _ in schedule.call_args_list:
        assert name in activity_names
        assert isinstance(activity, Activity)
        scheduled_activities.add(name)
    assert scheduled_activities == activity_names