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siftlode/backend/tests/test_utils.py
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peter b1832afd18 style: apply ruff format across backend + scripts (line-length 100)
Mechanical, whole-tree `ruff format` pass — no behaviour change. Recorded in
.git-blame-ignore-revs (next commit) so git blame skips it.
2026-08-23 07:43:06 +02:00

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Python

"""iso(): the single date/datetime→JSON serializer the routes share (R6 S1a)."""
from datetime import date, datetime, timezone
from app.utils import iso, normalize_description
def test_none_maps_to_none():
assert iso(None) is None
def test_plain_date_serializes_as_iso_date():
# MediaAsset.upload_date is a `date`, not a datetime — the contract must accept it.
assert iso(date(2026, 7, 26)) == "2026-07-26"
def test_aware_datetime_keeps_offset():
dt = datetime(2026, 7, 26, 12, 30, 0, tzinfo=timezone.utc)
assert iso(dt) == "2026-07-26T12:30:00+00:00"
def test_naive_datetime_serializes_without_offset():
dt = datetime(2026, 7, 26, 12, 30, 0)
assert iso(dt) == "2026-07-26T12:30:00"
def test_matches_datetime_isoformat_contract():
# iso is exactly `dt.isoformat()` for a present value — guards the routes that used to
# hand-roll `x.isoformat() if x else None`.
dt = datetime(2020, 1, 2, 3, 4, 5, 678901, tzinfo=timezone.utc)
assert iso(dt) == dt.isoformat()
def test_normalize_description_none_stays_none():
assert normalize_description(None) is None
def test_normalize_description_drops_blank_lines():
# A YouTube contact block padded with runs of blank lines — the waste we strip before storing.
raw = "Contact us\n\n\nEmail: a@b.com\n \nInstagram: @x\n\n\n"
assert normalize_description(raw) == "Contact us\nEmail: a@b.com\nInstagram: @x"
def test_normalize_description_right_strips_and_trims():
assert normalize_description(" hi there \n\n bye ") == " hi there\n bye"
def test_normalize_description_all_blank_collapses_to_empty():
assert normalize_description("\n \n\t\n") == ""
def test_normalize_description_single_line_unchanged():
assert normalize_description("just one line") == "just one line"
def test_normalize_description_folds_crlf_line_endings():
# splitlines() folds CR/CRLF to \n — a documented, benign line-ending normalization.
assert normalize_description("a\r\nb\r\n\r\nc") == "a\nb\nc"