Lib/idlelib/idle_test/test_editor.py

"Test editor, coverage 35%."

from idlelib import editor
import unittest
from test.support import requires
from tkinter import Tk

Editor = editor.EditorWindow


class EditorWindowTest(unittest.TestCase):

    @classmethod
    def setUpClass(cls):
        requires('gui')
        cls.root = Tk()
        cls.root.withdraw()

    @classmethod
    def tearDownClass(cls):
        cls.root.update_idletasks()
        for id in cls.root.tk.call('after', 'info'):
            cls.root.after_cancel(id)
        cls.root.destroy()
        del cls.root

    def test_init(self):
        e = Editor(root=self.root)
        self.assertEqual(e.root, self.root)
        e._close()


class EditorFunctionTest(unittest.TestCase):

    def test_filename_to_unicode(self):
        func = Editor._filename_to_unicode
        class dummy():
            filesystemencoding = 'utf-8'
        pairs = (('abc', 'abc'), ('a\U00011111c', 'a\ufffdc'),
                 (b'abc', 'abc'), (b'a\xf0\x91\x84\x91c', 'a\ufffdc'))
        for inp, out in pairs:
            self.assertEqual(func(dummy, inp), out)


if __name__ == '__main__':
    unittest.main(verbosity=2)