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gh-79579: Improve DML query detection in sqlite3 #93623

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Merged
erlend-aasland merged 22 commits into from
Jun 14, 2022
Merged

gh-79579: Improve DML query detection in sqlite3 #93623

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c8bcf3b
Add tests
erlend-aasland Jun 8, 2022
d38e632
Modify pysqlite_check_remaining_sql to return char * iso. int
erlend-aasland Jun 8, 2022
7fcca68
Rename pysqlite_check_remaining_sql to lstrip_sql
erlend-aasland Jun 8, 2022
3061dc5
Use lstrip_sql() to strip comments and whitespace
erlend-aasland Jun 8, 2022
631f24d
Adjust comment
erlend-aasland Jun 8, 2022
8f29283
Explicit comparison
erlend-aasland Jun 8, 2022
a51cfe6
Add more tests
erlend-aasland Jun 8, 2022
bf0e150
Fix bug in lstrip parser
erlend-aasland Jun 8, 2022
5918fbe
Adjust NEWS
erlend-aasland Jun 8, 2022
b45e5b5
Make test more messy
erlend-aasland Jun 9, 2022
b0a7fbc
Address Ma Lin's review
erlend-aasland Jun 9, 2022
61a81eb
Reword comment
erlend-aasland Jun 9, 2022
e3fea31
Inline it
erlend-aasland Jun 9, 2022
d6ce75c
Further mess up messy test to increase code coverage
erlend-aasland Jun 9, 2022
7f7943f
Increase code coverage
erlend-aasland Jun 10, 2022
adcba2c
Merge branch 'main' into sqlite-rowcount/gh-79579-alt
erlend-aasland Jun 12, 2022
e5fafc7
Rewrite lstrip_sql by borrowing from SQLite's parser
erlend-aasland Jun 13, 2022
7d7a654
Test code nit
erlend-aasland Jun 13, 2022
2e638a0
Harden test_rowcount_prefixed_with_comment test
erlend-aasland Jun 13, 2022
b932e4f
Simplify one test
erlend-aasland Jun 13, 2022
ca053d7
Fix ret value for invalid comments
erlend-aasland Jun 13, 2022
c6fa9b2
Simplify
erlend-aasland Jun 13, 2022
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Add tests
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@erlend-aasland
erlend-aasland committed Jun 8, 2022
commit c8bcf3b2b8f0a469f659af56d53057bd9e1018f0
15 changes: 15 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 @@ -906,6 +906,21 @@ def test_rowcount_update_returning(self):
self.assertEqual(self.cu.fetchone()[0], 1)
self.assertEqual(self.cu.rowcount, 1)

def test_rowcount_prefixed_with_comment(self):
# gh-79579: rowcount is updated even if query is prefixed with comments
self.cu.execute("/* foo */ insert into test(name) values (?)", ('foo',))
self.assertEqual(self.cu.rowcount, 1)
self.cu.execute("/* bar */ update test set name='bar' where name='foo'")
self.assertEqual(self.cu.rowcount, 2)

def test_rowcount_vaccuum(self):
data = ((1,), (2,), (3,))
self.cu.executemany("insert into test(income) values(?)", data)
self.assertEqual(self.cu.rowcount, 3)
self.cx.commit()
self.cu.execute("vacuum")
self.assertEqual(self.cu.rowcount, -1)

def test_total_changes(self):
self.cu.execute("insert into test(name) values ('foo')")
self.cu.execute("insert into test(name) values ('foo')")
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2 changes: 2 additions & 0 deletions Misc/NEWS.d/next/Library/2022-06-06-12-58-27.gh-issue-79579.e8rB-M.rst
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Original file line number Diff line number Diff line change
@@ -0,0 +1,2 @@
:data:`sqlite3.Cursor.rowcount` is now correctly updated for all datamodifying
SQL queries. Patch by Erlend E. Aasland.