def METHOD_NAME(self):
    image = create_image(None, 'banner.png')
    form = forms.GameForm({
        'name': 'bliblu',
        'platforms': [self.platform.id],
        'genres': [self.genre.id],
        'developer': self.developer.id,
        'publisher': self.publisher.id
    }, {
        'title_logo': SimpleUploadedFile('front.png', image.getvalue())
    })
    form.is_valid()
    self.assertTrue(form.is_valid())
    self.assertFalse(form.errors)