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# Test methods with long descriptive names can omit docstrings
# pylint: disable=missing-docstring
import unittest
from unittest import mock
from Orange.data import Table
from Orange.widgets.data.owsql import OWSql
from Orange.widgets.tests.base import WidgetTest, simulate
from Orange.tests.sql.base import DataBaseTest as dbt
mock_msgbox = mock.MagicMock()
mock_msgbox().addButton.return_value = "NO"
mock_msgbox().clickedButton.return_value = "NO"
def mock_sqltable(*args, **_):
table = Table(args[1])
table.get_domain = lambda **_: table.domain
table.download_data = lambda *_: 1
return table
class TestOWSqlConnected(WidgetTest, dbt):
def setUpDB(self):
# pylint: disable=attribute-defined-outside-init
self.widget = self.create_widget(OWSql)
self.params, _ = self.create_iris_sql_table()
self.iris = Table("iris")
def tearDownDB(self):
self.drop_iris_sql_table()
@dbt.run_on(["postgres"])
def test_connection(self):
"""Test if a connection to the database can be established"""
self.set_connection_params()
self.widget.connect()
self.assertFalse(self.widget.Error.connection.is_shown())
self.assertIsNotNone(self.widget.database_desc)
tables = ["Select a table"]
self.assertTrue(set(self.widget.tables).issuperset(set(tables)))
@dbt.run_on(["postgres"])
def test_output_iris(self):
"""Test if iris data can be fetched from database"""
self.assertIsNone(self.get_output(self.widget.Outputs.data))
self.set_connection_params()
self.widget.connect()
idx = list(map(str, self.widget.tables)).index("iris")
self.widget.tablecombo.setCurrentIndex(idx)
self.widget.select_table()
output = self.get_output(self.widget.Outputs.data)
self.assertIsNotNone(output)
self.assertEqual(len(output), len(self.iris))
iris_domain = set(map(str, self.iris.domain.attributes))
output_domain = set(map(str, output.domain.attributes))
self.assertTrue(output_domain.issuperset(iris_domain))
def set_connection_params(self):
"""Set database connection parameters on widget"""
port = ''
if self.params['port'] is not None:
port += ':' + str(self.params['port'])
self.widget.servertext.setText(self.params['host'] + port)
self.widget.databasetext.setText(self.params['database'])
self.widget.usernametext.setText(self.params['user'])
self.widget.passwordtext.setText(self.params['password'])
class TestOWSql(WidgetTest):
@mock.patch('Orange.widgets.data.owsql.Table',
mock.PropertyMock(return_value=Table('iris')))
@mock.patch('Orange.widgets.data.owsql.SqlTable')
@mock.patch('Orange.widgets.data.owsql.Backend')
def test_restore_table(self, mock_backends, mock_sqltable):
"""Test if selected table is restored from settings"""
backend = mock.Mock()
backend().display_name = "database"
del backend().missing_extension
backend().list_tables.return_value = ["a", "b", "c"]
backend().n_tables.return_value = 3
mock_backends.available_backends.return_value = [backend]
mock_sqltable().approx_len.return_value = 100
settings = {"host": "host", "port": "port", "database": "DB",
"schema": "", "username": "username",
"password": "password", "table": "b"}
widget = self.create_widget(OWSql, stored_settings=settings)
self.assertEqual(widget.tablecombo.currentText(), "b")
@mock.patch("Orange.data.sql.backend.base.Backend.available_backends")
def test_selected_backend(self, mocked_backends: mock.Mock):
b1, b2 = mock.Mock(), mock.Mock()
b1.display_name = "B1"
b2.display_name = "B2"
mocked_backends.return_value = [b1, b2]
widget = self.create_widget(OWSql)
self.assertEqual(widget.backendcombo.currentText(), "B1")
simulate.combobox_activate_index(widget.backendcombo, 1)
self.assertEqual(widget.backendcombo.currentText(), "B2")
settings = widget.settingsHandler.pack_data(widget)
widget = self.create_widget(OWSql, stored_settings=settings)
self.assertEqual(widget.backendcombo.currentText(), "B2")
settings = widget.settingsHandler.pack_data(widget)
settings["selected_backend"] = "B3"
widget = self.create_widget(OWSql, stored_settings=settings)
self.assertEqual(widget.backendcombo.currentText(), "B1")
mocked_backends.return_value = []
settings = widget.settingsHandler.pack_data(widget)
widget = self.create_widget(OWSql, stored_settings=settings)
self.assertEqual(widget.backendcombo.currentText(), "")
@mock.patch('Orange.widgets.data.owsql.Backend')
def test_data_source(self, mocked_backends: mock.Mock):
widget: OWSql = self.create_widget(OWSql)
widget.controls.data_source.buttons[OWSql.CUSTOM_SQL].click()
backend = mock.Mock()
backend().display_name = "Dummy Backend"
backend().list_tables.return_value = ["a", "b", "c"]
backend().n_tables.return_value = 3
mocked_backends.available_backends.return_value = [backend]
settings = {"selected_backend": "Dummy Backend",
"host": "host", "port": "port", "database": "DB",
"schema": "", "username": "username",
"password": "password"}
widget: OWSql = self.create_widget(OWSql, stored_settings=settings)
self.assertEqual(widget.tablecombo.currentText(), "Select a table")
self.assertFalse(widget.tablecombo.isHidden())
self.assertTrue(widget.tabletext.isHidden())
self.assertTrue(widget.custom_sql.isHidden())
widget.controls.data_source.buttons[OWSql.CUSTOM_SQL].click()
self.assertEqual(widget.tablecombo.currentText(), "Select a table")
self.assertFalse(widget.tablecombo.isHidden())
self.assertTrue(widget.tabletext.isHidden())
self.assertFalse(widget.custom_sql.isHidden())
widget.controls.data_source.buttons[OWSql.TABLE].click()
self.assertEqual(widget.tablecombo.currentText(), "Select a table")
self.assertFalse(widget.tablecombo.isHidden())
self.assertTrue(widget.tabletext.isHidden())
self.assertTrue(widget.custom_sql.isHidden())
@mock.patch('Orange.widgets.data.owsql.MAX_TABLES', 2)
@mock.patch('Orange.widgets.data.owsql.SqlTable',
mock.Mock(side_effect=mock_sqltable))
@mock.patch('Orange.widgets.data.owsql.Backend')
def test_table_text(self, mocked_backends: mock.Mock):
backend = mock.Mock()
backend().display_name = "Dummy Backend"
backend().list_tables.return_value = ["iris", "zoo", "titanic"]
backend().n_tables.return_value = 3
mocked_backends.available_backends.return_value = [backend]
settings = {"selected_backend": "Dummy Backend",
"host": "host", "port": "port", "database": "DB",
"schema": "", "username": "username",
"password": "password"}
widget: OWSql = self.create_widget(OWSql, stored_settings=settings)
self.assertTrue(widget.tablecombo.isHidden())
self.assertFalse(widget.tabletext.isHidden())
widget.tabletext.setText("zoo")
widget.select_table()
output = self.get_output(widget.Outputs.data, widget=widget)
self.assertIsInstance(output, Table)
self.assertEqual(len(output), 101)
@mock.patch('Orange.widgets.data.owsql.AUTO_DL_LIMIT', 120)
@mock.patch('Orange.widgets.data.owsql.is_postgres',
mock.Mock(return_value=True))
@mock.patch('Orange.widgets.data.owsql.QMessageBox', mock_msgbox)
@mock.patch('Orange.widgets.data.owsql.SqlTable',
mock.Mock(side_effect=mock_sqltable))
@mock.patch('Orange.widgets.data.owsql.Backend')
def test_auto_dl_limit(self, mocked_backends: mock.Mock):
backend = mock.Mock()
backend().display_name = "Dummy Backend"
backend().list_tables.return_value = ["iris", "zoo", "titanic"]
backend().n_tables.return_value = 3
mocked_backends.available_backends.return_value = [backend]
settings = {"selected_backend": "Dummy Backend",
"host": "host", "port": "port", "database": "DB",
"schema": "", "username": "username",
"password": "password"}
widget: OWSql = self.create_widget(OWSql, stored_settings=settings)
widget.tablecombo.setCurrentIndex(2)
widget.select_table()
output = self.get_output(widget.Outputs.data, widget=widget)
self.assertIsInstance(output, Table)
self.assertEqual(len(output), 101)
widget.tablecombo.setCurrentIndex(1)
widget.select_table()
output = self.get_output(widget.Outputs.data, widget=widget)
self.assertIsNone(output)
if __name__ == "__main__":
unittest.main()
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