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test: add test to check if Location.fromstring is static

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requested by peterjc

I agree to my contributions being dual licensed under the BSD 3-Clause and Biopython License
Signed-off-by: Fynn Freyer <fynn.freyer@googlemail.com>
This commit is contained in:
Fynn Freyer
2025-03-27 20:09:16 +01:00
committed by Peter Cock
parent 8e969c418f
commit 137dca3eb9
1 changed files with 16 additions and 1 deletions
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17
Tests/test_SeqFeature.py
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@ -16,7 +16,7 @@ from Bio import Seq
from Bio import SeqIO
from Bio import SeqRecord
from Bio.Data.CodonTable import TranslationError
from Bio.SeqFeature import AfterPosition
from Bio.SeqFeature import AfterPosition, Location
from Bio.SeqFeature import BeforePosition
from Bio.SeqFeature import BetweenPosition
from Bio.SeqFeature import CompoundLocation
@ -243,6 +243,21 @@ class TestLocations(unittest.TestCase):
self.assertEqual(int(location3.start), 10)
self.assertEqual(int(location3.end), 40)
def test_fromstring_is_static(self):
"""Test whether Location.fromstring is static.
See `#4984 <https://github.com/biopython/biopython/pull/4984#issuecomment-2758280951>`_.
"""
is_static = isinstance(Location.__dict__["fromstring"], staticmethod)
self.assertTrue(is_static)
# with old implementation
# behaviour of CompoundLocation.fromstring would change
# depending on whether we call from instance or class
f1 = SimpleLocation(10, 40)
f2 = SimpleLocation(50, 59)
instance = CompoundLocation([f1, f2])
spec = "10..40"
self.assertEqual(Location.fromstring(spec), instance.fromstring(spec))
class TestPositions(unittest.TestCase):
def test_pickle(self):