Method test_after_info

Lib/test/test_tkinter/test_misc.py:260–298

(self)

            root.tk.call('after', 'info', idle1)

    def test_after_info(self):
        root = self.root

        # No events.
        self.assertEqual(root.after_info(), ())

        # Add timer.
        timer = root.after(1, lambda: 'break')

        # With no parameter, it returns a tuple of the event handler ids.
        self.assertEqual(root.after_info(), (timer, ))
        root.after_cancel(timer)

        timer1 = root.after(5000, lambda: 'break')
        timer2 = root.after(5000, lambda: 'break')
        idle1 = root.after_idle(lambda: 'break')
        # Only contains new events and not 'timer'.
        self.assertEqual(root.after_info(), (idle1, timer2, timer1))

        # With a parameter returns a tuple of (script, type).
        timer1_info = root.after_info(timer1)
        self.assertEqual(len(timer1_info), 2)
        self.assertEqual(timer1_info[1], 'timer')
        idle1_info = root.after_info(idle1)
        self.assertEqual(len(idle1_info), 2)
        self.assertEqual(idle1_info[1], 'idle')

        root.after_cancel(timer1)
        with self.assertRaises(tkinter.TclError):
            root.after_info(timer1)
        root.after_cancel(timer2)
        with self.assertRaises(tkinter.TclError):
            root.after_info(timer2)
        root.after_cancel(idle1)
        with self.assertRaises(tkinter.TclError):
            root.after_info(idle1)

        # No events.
        self.assertEqual(root.after_info(), ())

    def test_clipboard(self):
        root = self.root