test_widgets.py 文件源码

def test_add_and_hidden(self):
        self.assertRaises(tkinter.TclError, self.nb.hide, -1)
        self.assertRaises(tkinter.TclError, self.nb.hide, 'hi')
        self.assertRaises(tkinter.TclError, self.nb.hide, None)
        self.assertRaises(tkinter.TclError, self.nb.add, None)
        self.assertRaises(tkinter.TclError, self.nb.add, ttk.Label(self.root),
            unknown='option')

        tabs = self.nb.tabs()
        self.nb.hide(self.child1)
        self.nb.add(self.child1)
        self.assertEqual(self.nb.tabs(), tabs)

        child = ttk.Label(self.root)
        self.nb.add(child, text='c')
        tabs = self.nb.tabs()

        curr = self.nb.index('current')
        # verify that the tab gets readded at its previous position
        child2_index = self.nb.index(self.child2)
        self.nb.hide(self.child2)
        self.nb.add(self.child2)
        self.assertEqual(self.nb.tabs(), tabs)
        self.assertEqual(self.nb.index(self.child2), child2_index)
        self.assertEqual(str(self.child2), self.nb.tabs()[child2_index])
        # but the tab next to it (not hidden) is the one selected now
        self.assertEqual(self.nb.index('current'), curr + 1)