from typing import List

import pytest

from app.config import ALLOWED_REDIRECT_DOMAINS
from app.utils import random_string, random_words, sanitize_next_url


def test_random_words():
    s = random_words()
    assert len(s) > 0


def test_random_string():
    s = random_string()
    assert len(s) > 0


def generate_sanitize_url_cases() -> List:
    cases = [
        [None, None],
        ["", None],
        ["http://badhttp.com", None],
        ["https://badhttps.com", None],
        ["/", "/"],
        ["/auth", "/auth"],
        ["/some/path", "/some/path"],
        ["//somewhere.net", None],
    ]
    for domain in ALLOWED_REDIRECT_DOMAINS:
        cases.append([f"http://{domain}", f"http://{domain}"])
        cases.append([f"https://{domain}", f"https://{domain}"])
        cases.append([f"https://{domain}/sub", f"https://{domain}/sub"])
        cases.append([domain, None])
        cases.append([f"//{domain}", f"//{domain}"])
    return cases


@pytest.mark.parametrize("url,expected", generate_sanitize_url_cases())
def test_sanitize_url(url, expected):
    sanitized = sanitize_next_url(url)
    assert expected == sanitized