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Make empty durations an error in pure-Python parser #903

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Make empty durations an error in pure-Python parser #903

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2 changes: 1 addition & 1 deletion src/pendulum/parsing/iso8601.py
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Original file line number Diff line number Diff line change
Expand Up @@ -265,7 +265,7 @@ def parse_iso8601(

def _parse_iso8601_duration(text: str, **options: str) -> Duration | None:
m = ISO8601_DURATION.fullmatch(text)
if not m:
if not m or (not m.group("w") and not m.group("ymd") and not m.group("hms")):
return None

years = 0
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10 changes: 8 additions & 2 deletions tests/parsing/test_parse_iso8601.py
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Expand Up @@ -90,7 +90,7 @@ def test_parse_iso8601(text: str, expected: date) -> None:
assert parse_iso8601(text) == expected


def test_parse_ios8601_invalid():
def test_parse_iso8601_invalid():
# Invalid month
with pytest.raises(ValueError):
parse_iso8601("20161306T123456")
Expand Down Expand Up @@ -193,7 +193,7 @@ def test_parse_ios8601_invalid():
("P2Y30M4DT5H6M7S", (2, 30, 0, 4, 5, 6, 7, 0)),
],
)
def test_parse_ios8601_duration(
def test_parse_iso8601_duration(
text: str, expected: tuple[int, int, int, int, int, int, int, int]
) -> None:
parsed = parse_iso8601(text)
Expand All @@ -208,3 +208,9 @@ def test_parse_ios8601_duration(
parsed.remaining_seconds,
parsed.microseconds,
) == expected


def test_parse_iso8601_duration_invalid():
# Must include at least one element
with pytest.raises(ValueError):
parse_iso8601("P")