"""Tests for the change_alias use case."""

import pytest

from neotalk.core.entities.responses import ResponseTypes
from neotalk.core.use_cases.identity.change_alias import change_alias_use_case


def test_change_alias_trims_and_updates(identity):
    # When setting a padded alias
    response = change_alias_use_case(identity, "  carol  ")

    # Then it is trimmed and stored, leaving other fields intact
    assert response["type"] == ResponseTypes.SUCCESS
    updated = response["data"]["identity"]
    assert updated.alias == "carol"
    assert updated.peer_id == identity.peer_id


@pytest.mark.parametrize(
    "alias",
    [pytest.param("", id="empty"), pytest.param("   ", id="whitespace")],
)
def test_change_alias_rejects_blank(identity, alias):
    # When setting a blank alias
    response = change_alias_use_case(identity, alias)

    # Then it is a parameters error
    assert response["type"] == ResponseTypes.PARAMETERS_ERROR


def test_change_alias_rejects_overly_long_alias(identity):
    # When setting an alias beyond the limit
    response = change_alias_use_case(identity, "x" * 33)

    # Then it is a parameters error
    assert response["type"] == ResponseTypes.PARAMETERS_ERROR
    assert response["errors"][0]["field"] == "alias"