""" Tests for cloud_interest_rate_calculator """
# pylint: disable=no-self-use,missing-function-docstring,missing-class-docstring

import pytest
import mock
from src import lambda_function


class TestExampleFunction:
    @pytest.mark.parametrize("event", [{"value": "One Thousand"}, {"not_value": 1000}])
    def test_handler_bad_input(self, event):
        with pytest.raises(Exception):
            assert lambda_function.handler(event, {})

    @mock.patch("src.lambda_function.get_factors")
    def test_handler_unexpected_error(self, mock_calculate_interest):
        event = {"value": "10"}
        mock_calculate_interest.side_effect = Exception()
        with pytest.raises(Exception):
            assert lambda_function.handler(event, {})

    def test_handler(self):
        event = {"value": "10"}
        response = lambda_function.handler(event, {})
        assert response == "1,2,5,10"

    @pytest.mark.parametrize(
        "initial,expected",
        [
            (1, {1}),
            (10, {1, 2, 5, 10}),
            (60, {1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60}),
            (64, {1, 2, 4, 8, 16, 32, 64}),
        ],
    )
    def test_get_factors(self, initial, expected):
        response = lambda_function.get_factors(initial)
        assert response == expected

    @pytest.mark.parametrize(
        "initial,expected",
        [([], ""), ([1], "1"), ([2], "2"), ([1, 2, 3], "1,2,3"), ([1, 3, 2], "1,2,3"),],
    )
    def test_stringify(self, initial, expected):
        response = lambda_function.stringify(initial)
        assert response == expected