test(kernel): cover zero row limit

Author: vuanhphung

tests/e2e/test_kernel_backend.py

@@ -183,7 +183,7 @@ def test_fetchall_arrow(conn):
         assert table.column_names == ["a", "b"]
 
 
-@pytest.mark.parametrize("row_limit", [None, 1, 5])
+@pytest.mark.parametrize("row_limit", [None, 0, 1, 5])
 def test_cursor_row_limit(conn, row_limit):
     with conn.cursor(row_limit=row_limit) as cur:
         cur.execute("SELECT id FROM range(10) ORDER BY id")

tests/unit/test_kernel_client.py

@@ -436,7 +436,7 @@ def test_execute_command_forwards_query_tags():
     assert stmt.execute.called
 
 
-@pytest.mark.parametrize("row_limit", [None, 1, 5])
+@pytest.mark.parametrize("row_limit", [None, 0, 1, 5])
 def test_execute_command_forwards_row_limit(row_limit):
     c = _make_client()
     c._kernel_session = MagicMock()