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bpo-44041: Add test for sqlite3 column count #25907

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Merged
merged 6 commits into from
Jun 4, 2021
Merged

bpo-44041: Add test for sqlite3 column count #25907

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f961c3f
bpo-44041: Only call sqlite3_column_count() if needed
May 4, 2021
16ae182
Merge branch 'main' into sqlite-column-count
Jun 3, 2021
01b5940
Fix merge
Jun 3, 2021
ef94c62
Check that column count is updated correctly for cached statements
Jun 4, 2021
43ca03d
Revert "bpo-44041: Only call sqlite3_column_count() if needed"
Jun 4, 2021
dba2bad
Strip spurious change
Jun 4, 2021
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11 changes: 11 additions & 0 deletions Lib/sqlite3/test/dbapi.py
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Original file line number Diff line number Diff line change
Expand Up @@ -555,6 +555,17 @@ def test_last_row_id_insert_o_r(self):
]
self.assertEqual(results, expected)

def test_column_count(self):
# Check that column count is updated correctly for cached statements
select = "select * from test"
res = self.cu.execute(select)
old_count = len(res.description)
# Add a new column and execute the cached select query again
self.cu.execute("alter table test add newcol")
res = self.cu.execute(select)
new_count = len(res.description)
self.assertEqual(new_count - old_count, 1)


class ThreadTests(unittest.TestCase):
def setUp(self):
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