def test_load_command__import_error(self):
"""
Unit test for :func:`pyramidcms.cli.load_command`
Test what happens if the module cannot be imported, this should
catch the ImportError and raise a CommandError.
"""
app = 'pcms'
command = 'command1'
# settings_dict contains the pyramid settings
settings_dict = {'test_setting': 'setting_value'}
# ImportError is caught and CommandError raised
with patch('importlib.import_module', side_effect=ImportError):
with self.assertRaises(CommandError):
cli.load_command(app, command, settings_dict)
def test_load_command__success(self, mock_import):
"""
Unit test for :func:`pyramidcms.cli.load_command`
Test if the command is dynamically imported correctly from the
:module:`pyramidcms.commands` module, then checks if the Command
class is constructed correctly.
This test is done using :module:`unittest.mock`, no actual
command is being executed during this test.
"""
app = 'pcms'
command = 'command1'
cli.load_command(app, command, self.mock_settings)
# module is imported, get a reference to mock module
mock_import.assert_called_once_with('pyramidcms.commands.command1')
mock_module = mock_import.return_value
# Command class in mock module is instantiated
mock_module.Command.assert_called_once_with(app, command, self.mock_settings)
