|
| 1 | +import unittest |
| 2 | +import tkinter |
| 3 | +from tkinter.scrolledtext import ScrolledText |
| 4 | +from test.support import requires |
| 5 | +from test.test_tkinter.support import setUpModule # noqa: F401 |
| 6 | +from test.test_tkinter.support import AbstractTkTest |
| 7 | + |
| 8 | +requires('gui') |
| 9 | + |
| 10 | + |
| 11 | +class ScrolledTextTest(AbstractTkTest, unittest.TestCase): |
| 12 | + |
| 13 | + def create(self, **kwargs): |
| 14 | + st = ScrolledText(self.root, **kwargs) |
| 15 | + self.addCleanup(st.destroy) |
| 16 | + return st |
| 17 | + |
| 18 | + def test_create(self): |
| 19 | + st = self.create(background='red', height=5) |
| 20 | + # It is a Text widget held in a Frame together with a Scrollbar. |
| 21 | + self.assertIsInstance(st, tkinter.Text) |
| 22 | + self.assertIsInstance(st.frame, tkinter.Frame) |
| 23 | + self.assertIsInstance(st.vbar, tkinter.Scrollbar) |
| 24 | + self.assertEqual(st.winfo_parent(), str(st.frame)) |
| 25 | + # str() returns the frame, so that geometry managers manage it. |
| 26 | + self.assertEqual(str(st), str(st.frame)) |
| 27 | + # Keyword options configure the Text. |
| 28 | + self.assertEqual(str(st['background']), 'red') |
| 29 | + self.assertEqual(st['height'], 5 if self.wantobjects else '5') |
| 30 | + |
| 31 | + def test_text_methods(self): |
| 32 | + st = self.create() |
| 33 | + st.insert('1.0', 'hello\nworld') |
| 34 | + self.assertEqual(st.get('1.0', 'end-1c'), 'hello\nworld') |
| 35 | + self.assertEqual(st.index('end-1c'), '2.5') |
| 36 | + st.delete('1.0', 'end') |
| 37 | + self.assertEqual(st.get('1.0', 'end-1c'), '') |
| 38 | + |
| 39 | + def test_geometry_methods(self): |
| 40 | + st = self.create() |
| 41 | + # configure is not redirected; it configures the Text. |
| 42 | + st.configure(height=8) |
| 43 | + self.assertEqual(st['height'], 8 if self.wantobjects else '8') |
| 44 | + # Pack, Grid and Place methods are redirected to the frame. |
| 45 | + st.pack() |
| 46 | + self.root.update() |
| 47 | + self.assertEqual(st.frame.winfo_manager(), 'pack') |
| 48 | + self.assertEqual(st.pack_info(), st.frame.pack_info()) |
| 49 | + st.pack_forget() |
| 50 | + self.assertEqual(st.frame.winfo_manager(), '') |
| 51 | + |
| 52 | + def test_scrollbar(self): |
| 53 | + st = self.create(height=5) |
| 54 | + st.pack() |
| 55 | + st.insert('1.0', '\n'.join(map(str, range(100)))) |
| 56 | + self.root.update() |
| 57 | + # The scrollbar tracks the text view. |
| 58 | + self.assertEqual(st.vbar.get(), st.yview()) |
| 59 | + st.yview_moveto(1.0) |
| 60 | + self.root.update() |
| 61 | + self.assertEqual(st.vbar.get()[1], 1.0) |
| 62 | + |
| 63 | + |
| 64 | +if __name__ == "__main__": |
| 65 | + unittest.main() |