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1"Test multicall, coverage 33%."
2
3from idlelib import multicall
4import unittest
5from test.support import requires
6from tkinter import Tk, Text
7
8
9class MultiCallTest(unittest.TestCase):
10
11    @classmethod
12    def setUpClass(cls):
13        requires('gui')
14        cls.root = Tk()
15        cls.root.withdraw()
16        cls.mc = multicall.MultiCallCreator(Text)
17
18    @classmethod
19    def tearDownClass(cls):
20        del cls.mc
21        cls.root.update_idletasks()
22##        for id in cls.root.tk.call('after', 'info'):
23##            cls.root.after_cancel(id)  # Need for EditorWindow.
24        cls.root.destroy()
25        del cls.root
26
27    def test_creator(self):
28        mc = self.mc
29        self.assertIs(multicall._multicall_dict[Text], mc)
30        self.assertTrue(issubclass(mc, Text))
31        mc2 = multicall.MultiCallCreator(Text)
32        self.assertIs(mc, mc2)
33
34    def test_init(self):
35        mctext = self.mc(self.root)
36        self.assertIsInstance(mctext._MultiCall__binders, list)
37
38    def test_yview(self):
39        # Added for tree.wheel_event
40        # (it depends on yview to not be overridden)
41        mc = self.mc
42        self.assertIs(mc.yview, Text.yview)
43        mctext = self.mc(self.root)
44        self.assertIs(mctext.yview.__func__, Text.yview)
45
46
47if __name__ == '__main__':
48    unittest.main(verbosity=2)
49