import datetime

import pytest
from marshmallow import ValidationError

from app.coordinator.validators import (
    validate_datetime_greater_than_now,
    validate_index,
)


def test_validate_index() -> None:
    assert validate_index(123456) is None


def test_validate_index_with_invalid_value() -> None:
    with pytest.raises(ValidationError):
        validate_index(12345)

    with pytest.raises(ValidationError):
        validate_index(1234567)


def test_validate_datetime_greater_than_now() -> None:
    d = datetime.datetime.now() + datetime.timedelta(days=2)
    assert validate_datetime_greater_than_now(d) is None


def test_validate_datetime_greater_than_now_with_invalid_data() -> None:
    d = datetime.datetime.now() - datetime.timedelta(days=2)
    with pytest.raises(ValidationError):
        validate_datetime_greater_than_now(d)