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sientia-dataops-laborious-l…/tests/laborious/activities/test_postgres.py
vitor-aignosi ad00661516 SIENTIAPDE-994
Refactor tests for Postgres activities and improve error handling

- Updated test_postgres.py to enhance the testing of load_custom_query method, including cases for None data and date conversion.
- Refactored repeat_last_prediction tests to use mocks for SQLAlchemy session execution.
- Added tests for export_data_to_postgres method, covering both success and error scenarios.
- Improved the initialization tests for Activities class to ensure proper instantiation of dependencies.
- Enhanced test coverage for OPC repository connection validation.
- Updated tests for prediction workflows to streamline input handling and improve clarity.
- Introduced tests for connectors configuration to validate environment variable handling for MLFlow, OPC, and Postgres.
- Added tests for logger utility to ensure default settings are correctly applied.
2025-05-26 11:22:50 -03:00

160 lines
4.9 KiB
Python

from unittest.mock import MagicMock, patch
from pytest import fixture, mark
import pandas as pd
from laborious.activities.postgres import Postgres
@fixture
@patch("laborious.activities.postgres.create_engine")
def postgres_activity(_mock_create_engine):
return Postgres(
host="localhost",
port=5432,
user="test_user",
password="test_password",
dbname="test_db",
min_connections=1,
max_connections=5,
logger=MagicMock(),
notification_handler=MagicMock()
)
@mark.asyncio
@patch("laborious.activities.postgres.read_sql_query")
async def test_load_custom_query_none_data(mock_read_sql_query, postgres_activity):
query = "SELECT * FROM test_table LIMIT 1"
mock_read_sql_query.return_value = None
result = await postgres_activity.load_custom_query(query)
assert isinstance(result, dict)
assert len(result) == 0
@mark.asyncio
@patch("laborious.activities.postgres.read_sql_query")
async def test_load_custom_query_date_converted(mock_read_sql_query, postgres_activity):
query = "SELECT * FROM test_table LIMIT 1"
mock_data = pd.DataFrame({"column1": [1], "column2": ["test"]})
mock_data['date'] = pd.to_datetime('2022-01-01')
mock_read_sql_query.return_value = mock_data
result = await postgres_activity.load_custom_query(query)
assert isinstance(result, dict)
assert len(result) == 3
assert "column1" in result
assert "column2" in result
assert "date" in result
assert result['date'] == {0: '2022-01-01 00:00:00'}
@mark.asyncio
@patch("laborious.activities.postgres.read_sql_query")
async def test_load_custom_query_success(mock_read_sql_query, postgres_activity):
query = "SELECT * FROM test_table LIMIT 1"
mock_data = pd.DataFrame({"column1": [1], "column2": ["test"]})
mock_read_sql_query.return_value = mock_data
result = await postgres_activity.load_custom_query(query)
assert isinstance(result, dict)
assert len(result) == 2
assert "column1" in result
assert "column2" in result
postgres_activity.logger.info.assert_called()
@mark.asyncio
async def test_load_custom_query_error(postgres_activity):
query = "SELECT * FROM non_existent_table"
error_msg = "Table not found"
with patch("laborious.activities.postgres.read_sql_query", side_effect=ValueError(error_msg)):
result = await postgres_activity.load_custom_query(query)
assert isinstance(result, dict)
assert len(result) == 0
postgres_activity.notification_handler.build_and_send_notification.assert_called_once()
postgres_activity.logger.error.assert_called()
@mark.asyncio
async def test_repeat_last_prediction_success(postgres_activity):
query_items = {
"schema": "public",
"table_name": "predictions",
"model": 1
}
with patch("sqlalchemy.orm.session.Session.execute") as mock_execute:
await postgres_activity.repeat_last_prediction(query_items)
mock_execute.assert_called_once()
postgres_activity.logger.info.assert_called()
@mark.asyncio
async def test_repeat_last_prediction_error(postgres_activity):
query_items = {
"schema": "public",
"table_name": "predictions",
"model": 1
}
error_msg = "Database error"
with patch("sqlalchemy.orm.session.Session.execute", side_effect=ValueError(error_msg)):
await postgres_activity.repeat_last_prediction(query_items)
postgres_activity.notification_handler.build_and_send_notification.assert_called_once()
postgres_activity.logger.error.assert_called()
@mark.asyncio
async def test_export_data_to_postgres_success(postgres_activity):
input_data = {
"schema": "public",
"table_name": "test_table",
"data": pd.DataFrame({"column1": [1, 2], "column2": ["a", "b"]})
}
with patch("laborious.activities.postgres.DataFrame.to_sql") as mock_to_sql:
await postgres_activity.export_data_to_postgres(input_data)
mock_to_sql.assert_called_once()
postgres_activity.logger.debug.assert_called()
@mark.asyncio
async def test_export_data_to_postgres_error(postgres_activity):
input_data = {
"schema": "public",
"table_name": "test_table",
"data": pd.DataFrame({"column1": [1, 2], "column2": ["a", "b"]})
}
error_msg = "Export failed"
with patch("laborious.activities.postgres.DataFrame.to_sql", side_effect=ValueError(error_msg)):
await postgres_activity.export_data_to_postgres(input_data)
postgres_activity.notification_handler.build_and_send_notification.assert_called_once()
postgres_activity.logger.error.assert_called()
@mark.asyncio
async def test_close(postgres_activity):
postgres_activity.close()
postgres_activity.engine.dispose.assert_called_once()
@mark.asyncio
async def test_del(postgres_activity):
postgres_activity.close = MagicMock()
postgres_activity.__del__()
postgres_activity.close.assert_called_once()