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Issue #13583: sqlite3.Row now supports slice indexing.

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Tests by Jessica McKellar.
This commit is contained in:
Serhiy Storchaka 2015-03-31 13:33:11 +03:00
parent 80d84c89ee
commit 72e731cc03
4 changed files with 24 additions and 2 deletions
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18
Lib/sqlite3/test/factory.py
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@ -111,6 +111,24 @@ class RowFactoryTests(unittest.TestCase):
with self.assertRaises(IndexError):
row[2**1000]
def CheckSqliteRowSlice(self):
# A sqlite.Row can be sliced like a list.
self.con.row_factory = sqlite.Row
row = self.con.execute("select 1, 2, 3, 4").fetchone()
self.assertEqual(row[0:0], ())
self.assertEqual(row[0:1], (1,))
self.assertEqual(row[1:3], (2, 3))
self.assertEqual(row[3:1], ())
# Explicit bounds are optional.
self.assertEqual(row[1:], (2, 3, 4))
self.assertEqual(row[:3], (1, 2, 3))
# Slices can use negative indices.
self.assertEqual(row[-2:-1], (3,))
self.assertEqual(row[-2:], (3, 4))
# Slicing supports steps.
self.assertEqual(row[0:4:2], (1, 3))
self.assertEqual(row[3:0:-2], (4, 2))
def CheckSqliteRowIter(self):
"""Checks if the row object is iterable"""
self.con.row_factory = sqlite.Row