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When simple query dialogs (tkinter.simpledialog), message boxes (tkinter.messagebox) or color choose dialog (tkinter.colorchooser) are created without arguments master and parent, and the default root window is not yet created, a new temporary hidden root window will be created automatically. It will not be set as the default root window and will be destroyed right after closing the dialog window. It will help to use these simple dialog windows in programs which do not need other GUI. Previously, message boxes and color chooser created the blank root window and left it after closing the dialog window, and query dialogs just raised an exception. Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
37 lines
1 KiB
Python
37 lines
1 KiB
Python
import unittest
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import tkinter
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from test.support import requires, run_unittest, swap_attr
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from tkinter.test.support import AbstractDefaultRootTest
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from tkinter.simpledialog import Dialog, askinteger
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requires('gui')
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class DefaultRootTest(AbstractDefaultRootTest, unittest.TestCase):
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def test_askinteger(self):
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@staticmethod
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def mock_wait_window(w):
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nonlocal ismapped
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ismapped = w.master.winfo_ismapped()
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w.destroy()
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with swap_attr(Dialog, 'wait_window', mock_wait_window):
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ismapped = None
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askinteger("Go To Line", "Line number")
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self.assertEqual(ismapped, False)
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root = tkinter.Tk()
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ismapped = None
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askinteger("Go To Line", "Line number")
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self.assertEqual(ismapped, True)
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root.destroy()
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tkinter.NoDefaultRoot()
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self.assertRaises(RuntimeError, askinteger, "Go To Line", "Line number")
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tests_gui = (DefaultRootTest,)
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if __name__ == "__main__":
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run_unittest(*tests_gui)
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