Source code for airflow.triggers.testing

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#   http://www.apache.org/licenses/LICENSE-2.0
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from __future__ import annotations

from typing import Any

from airflow.triggers.base import BaseTrigger, TriggerEvent


[docs]class SuccessTrigger(BaseTrigger):
    """
    A trigger that always succeeds immediately.

    Should only be used for testing.
    """

[docs]    def serialize(self) -> tuple[str, dict[str, Any]]:
        return ("airflow.triggers.testing.SuccessTrigger", {})

[docs]    async def run(self):
        yield TriggerEvent(True)


[docs]class FailureTrigger(BaseTrigger):
    """
    A trigger that always errors immediately.

    Should only be used for testing.
    """

[docs]    def serialize(self) -> tuple[str, dict[str, Any]]:
        return ("airflow.triggers.testing.FailureTrigger", {})

[docs]    async def run(self):
        # Python needs at least one "yield" keyword in the body to make
        # this an async generator.
        if False:
            yield None
        raise ValueError("Deliberate trigger failure")