app-MAIL-temp/tests/test_utils.py

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from typing import List, Optional
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from urllib.parse import parse_qs
import pytest
from app.config import ALLOWED_REDIRECT_DOMAINS
from app.utils import random_string, random_words, sanitize_next_url, canonicalize_email
def test_random_words():
s = random_words()
assert s.find("_") > 0
assert s.count("_") == 1
assert len(s) > 3
s = random_words(2, 3)
assert s.count("_") == 1
assert s[-1] in (str(i) for i in range(10))
def test_random_string():
s = random_string()
assert len(s) > 0
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def generate_sanitize_url_cases() -> List:
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cases = [
[None, None],
["", None],
["http://badhttp.com", None],
["https://badhttps.com", None],
["/", "/"],
["/auth", "/auth"],
["/some/path", "/some/path"],
["//somewhere.net", None],
["//\\\\evil.com", None],
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]
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}"])
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cases.append([f"https://google.com\\@{domain}/haha", None])
return cases
@pytest.mark.parametrize("url,expected", generate_sanitize_url_cases())
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def test_sanitize_url(url: str, expected: Optional[str]):
sanitized = sanitize_next_url(url)
assert expected == sanitized
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def test_parse_querystring():
cases = [
{"input": "", "expected": {}},
{"input": "a=b", "expected": {"a": ["b"]}},
{"input": "a=b&c=d", "expected": {"a": ["b"], "c": ["d"]}},
{"input": "a=b&a=c", "expected": {"a": ["b", "c"]}},
]
for case in cases:
expected = case["expected"]
res = parse_qs(case["input"])
assert len(res) == len(expected)
for k, v in expected.items():
assert res[k] == v
def canonicalize_email_cases():
for domain in ("gmail.com", "protonmail.com", "proton.me", "pm.me"):
yield (f"a@{domain}", f"a@{domain}")
yield (f"a.b@{domain}", f"ab@{domain}")
yield (f"a.b+c@{domain}", f"ab@{domain}")
yield ("a.b+c@other.com", "a.b+c@other.com")
@pytest.mark.parametrize("dirty,clean", canonicalize_email_cases())
def test_canonicalize_email(dirty: str, clean: str):
assert canonicalize_email(dirty) == clean