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SNOW-1882588 Add Test for PR 2136 #2138

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Jan 17, 2025
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SNOW-1882588 Add Test for PR 2136 #2138

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15 changes: 15 additions & 0 deletions test/unit/test_cursor.py
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Original file line number Diff line number Diff line change
Expand Up @@ -62,6 +62,21 @@ def test_cursor_attribute():
assert cursor.lastrowid is None


def test_query_can_be_empty_with_dataframe_ast():
def mock_is_closed(*args, **kwargs):
return False

fake_conn = FakeConnection()
fake_conn.is_closed = mock_is_closed
cursor = SnowflakeCursor(fake_conn)
# when `dataframe_ast` is not presented, the execute function return None
assert cursor.execute("") is None
# when `dataframe_ast` is presented, it should not return `None`
# but raise `AttributeError` since `_paramstyle` is not set in FakeConnection.
with pytest.raises(AttributeError):
cursor.execute("", _dataframe_ast="ABCD")


@patch("snowflake.connector.cursor.SnowflakeCursor._SnowflakeCursor__cancel_query")
def test_cursor_execute_timeout(mockCancelQuery):
def mock_cmd_query(*args, **kwargs):
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