complex_test.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# This file is part of the Shiboken Python Bindings Generator project.
#
# Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
#
# Contact: PySide team <contact@pyside.org>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public License
# version 2.1 as published by the Free Software Foundation. Please
# review the following information to ensure the GNU Lesser General
# Public License version 2.1 requirements will be met:
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# #
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# Lesser General Public License for more details.
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# You should have received a copy of the GNU Lesser General Public
# License along with this program; if not, write to the Free Software
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'''Test cases for Complex class'''

import sys
import unittest

import sample
from sample import Point

class ComplexTest(unittest.TestCase):
    '''Test case for conversions between C++ Complex class to Python complex class'''

    def testFunctionReturningComplexObject(self):
        '''Test function returning a C++ Complex object.'''
        cpx = sample.transmutePointIntoComplex(Point(5.0, 2.3))
        self.assertEqual(cpx, complex(5.0, 2.3))

    def testFunctionReceivingComplexObjectAsArgument(self):
        '''Test function returning a C++ Complex object.'''
        pt = sample.transmuteComplexIntoPoint(complex(1.2, 3.4))
        # these assertions intentionally avoids to test the == operator,
        # it should have its own test cases.
        self.assertEqual(pt.x(), 1.2)
        self.assertEqual(pt.y(), 3.4)

    def testComplexList(self):
        '''Test list of C++ Complex objects conversion to a list of Python complex objects.'''
        # the global function gimmeComplexList() is expected to return a list
        # containing the following Complex values: [0j, 1.1+2.2j, 1.3+2.4j]
        cpxlist = sample.gimmeComplexList()
        self.assertEqual(cpxlist, [complex(), complex(1.1, 2.2), complex(1.3, 2.4)])

    def testSumComplexPair(self):
        '''Test sum of a tuple containing two complex objects.'''
        cpx1 = complex(1.2, 3.4)
        cpx2 = complex(5.6, 7.8)
        self.assertEqual(sample.sumComplexPair((cpx1, cpx2)), cpx1 + cpx2)

    def testUsingTuples(self):
        cpx1, cpx2 = (1.2, 3.4), (5.6, 7.8)
        self.assertEqual(sample.sumComplexPair((cpx1, cpx2)), sample.sumComplexPair((complex(*cpx1), complex(*cpx2))))
        cpx1, cpx2 = (1, 3), (5, 7)
        self.assertEqual(sample.sumComplexPair((cpx1, cpx2)), sample.sumComplexPair((complex(*cpx1), complex(*cpx2))))
        cpx1, cpx2 = (1.2, 3), (5.6, 7)
        self.assertEqual(sample.sumComplexPair((cpx1, cpx2)), sample.sumComplexPair((complex(*cpx1), complex(*cpx2))))
        cpx1, cpx2 = (1, 2, 3), (4, 5, 7)
        self.assertRaises(TypeError, sample.sumComplexPair, (cpx1, cpx2))
        cpx1, cpx2 = ('1', '2'), ('4', '5')
        self.assertRaises(TypeError, sample.sumComplexPair, (cpx1, cpx2))


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