"""
***************************************************************************
    ModelerTest
    ---------------------
    Date                 : November 2016
    Copyright            : (C) 2016 by Nyall Dawson
    Email                : nyall dot dawson at gmail dot com
***************************************************************************
*                                                                         *
*   This program is free software; you can redistribute it and/or modify  *
*   it under the terms of the GNU General Public License as published by  *
*   the Free Software Foundation; either version 2 of the License, or     *
*   (at your option) any later version.                                   *
*                                                                         *
***************************************************************************8
"""

__author__ = 'Nyall Dawson'
__date__ = 'November 2016'
__copyright__ = '(C) 2016, Nyall Dawson'

import unittest
from qgis.testing import start_app, QgisTestCase

from qgis.core import (QgsProcessingModelAlgorithm,
                       QgsProcessingModelParameter,
                       QgsProcessingParameterString,
                       QgsProcessingParameterNumber,
                       QgsProcessingParameterDistance,
                       QgsProcessingParameterField,
                       QgsProcessingParameterFile)
from processing.modeler.ModelerParametersDialog import (ModelerParametersDialog)

start_app()


class ModelerTest(QgisTestCase):

    def testModelerParametersDialogAvailableValuesOfType(self):
        # test getAvailableValuesOfType from ModelerParametersDialog

        m = QgsProcessingModelAlgorithm()

        string_param_1 = QgsProcessingModelParameter('string')
        m.addModelParameter(QgsProcessingParameterString('string'), string_param_1)

        string_param_2 = QgsProcessingModelParameter('string2')
        m.addModelParameter(QgsProcessingParameterString('string2'), string_param_2)

        num_param = QgsProcessingModelParameter('number')
        m.addModelParameter(QgsProcessingParameterNumber('number'), num_param)

        table_field_param = QgsProcessingModelParameter('field')
        m.addModelParameter(QgsProcessingParameterField('field'), table_field_param)

        file_param = QgsProcessingModelParameter('file')
        m.addModelParameter(QgsProcessingParameterFile('file'), file_param)

        dlg = ModelerParametersDialog(m, m)
        # test single types
        self.assertEqual({p.parameterName() for p in dlg.getAvailableValuesOfType(QgsProcessingParameterNumber)},
                         {'number'})
        self.assertEqual({p.parameterName() for p in dlg.getAvailableValuesOfType(QgsProcessingParameterField)},
                         {'field'})
        self.assertEqual({p.parameterName() for p in dlg.getAvailableValuesOfType(QgsProcessingParameterFile)},
                         {'file'})

        # test multiple types
        self.assertEqual({p.parameterName() for p in dlg.getAvailableValuesOfType([QgsProcessingParameterString, QgsProcessingParameterNumber, QgsProcessingParameterFile])},
                         {'string', 'string2', 'number', 'file'})


if __name__ == '__main__':
    unittest.main()