Method check_create_from_data

Lib/test/test_tkinter/test_images.py:205–221

(self, ext)

        self.assertNotIn('::img::test', self.root.image_names())

    def check_create_from_data(self, ext):
        testfile = support.findfile('python.' + ext, subdir='tkinterdata')
        with open(testfile, 'rb') as f:
            data = f.read()
        image = tkinter.PhotoImage('::img::test', master=self.root,
                                   data=data)
        self.assertEqual(str(image), '::img::test')
        self.assertEqual(image.type(), 'photo')
        self.assertEqual(image.width(), 16)
        self.assertEqual(image.height(), 16)
        self.assertEqual(image['data'], data if self.wantobjects
                                        else data.decode('latin1'))
        self.assertEqual(image['file'], '')
        self.assertIn('::img::test', self.root.image_names())
        del image
        support.gc_collect()  # For PyPy or other GCs.
        self.assertNotIn('::img::test', self.root.image_names())

    def test_create_from_ppm_file(self):
        self.check_create_from_file('ppm')