thegalactic / py-galactic

            "The value must be correct"

        )

    def test___setitem__(self):

        context = MemoryContext({'mybool': bool, 'myint': int}, ['0', '1'])

        context.model['mybool']['0'] = True

        context.model['myint']['0'] = 1

        self.assertEqual(

            str(context.population['0']),

            "{'mybool': True, 'myint': 1}",

            "The textual representation of the first individual is not correct"

        )

        context.model['mybool']['1'] = True

        context.model['myint']['1'] = 2

        self.assertEqual(

            str(context.population['1']),

            "{'mybool': True, 'myint': 2}",

            "The textual representation of the first individual is not correct"

        )

        with self.assertRaises(KeyError):

            context.model['mybool']['unknown'] = 1

        with self.assertRaises(ValueError):

            context.model['myint']['0'] = 'abc'

    def test___len__(self):

        context = MemoryContext({'mybool': bool, 'myint': int}, ['0', '1'])

        with self.assertRaises(ValueError):

            _ = context.population['0'].value(other.model['myint'])

    def test___setitem__(self):

        context = MemoryContext({'mybool': bool, 'myint': int}, ['0', '1'])

        context.population['0']['mybool'] = True

        context.population['0']['myint'] = 1

        self.assertEqual(

            str(context.population['0']),

            "{'mybool': True, 'myint': 1}",

            "The textual representation of the first individual is not correct"

        )

        context.population['1']['mybool'] = True

        context.population['1']['myint'] = 2

        self.assertEqual(

            str(context.population['1']),

            "{'mybool': True, 'myint': 2}",

            "The textual representation of the first individual is not correct"

        )

        with self.assertRaises(KeyError):

            context.population['0']['unknown'] = 1

        with self.assertRaises(ValueError):

            context.population['0']['myint'] = 'abc'

    def test___getitem__(self):

        context = MemoryContext({'mybool': bool, 'myint': int}, ['0'])