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gh-142787: Fix assertion failure in sqlite3 blob slice #142824

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Merged
erlend-aasland merged 5 commits into from
Feb 26, 2026
Merged

gh-142787: Fix assertion failure in sqlite3 blob slice #142824

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97ca005
gh-142787: Fix assertion failure in sqlite3 blob slice
abdoulrasheed Dec 16, 2025
577803c
📜🤖 Added by blurb_it.
blurb-it[bot] Dec 16, 2025
c7a12b3
Add regression test for gh-142787
abdoulrasheed Dec 16, 2025
e1556e8
Update test: insert new row instead of deleting
abdoulrasheed Dec 16, 2025
57fdbfe
Merge branch 'main' into fix-issue-142787
erlend-aasland Feb 26, 2026
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6 changes: 6 additions & 0 deletions Lib/test/test_sqlite3/test_dbapi.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1379,6 +1379,12 @@ def test_blob_get_slice(self):
def test_blob_get_empty_slice(self):
self.assertEqual(self.blob[5:5], b"")

def test_blob_get_empty_slice_oob_indices(self):
self.cx.execute("delete from test")
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self.cx.execute("insert into test(b) values (?)", (b"abc",))
with self.cx.blobopen("test", "b", 1) as blob:
self.assertEqual(blob[5:-5], b"")

def test_blob_get_slice_negative_index(self):
self.assertEqual(self.blob[5:-5], self.data[5:-5])

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