| import unittest | |
| import tkinter | |
| from tkinter import ttk | |
| from tkinter.scrolledtext import ScrolledText | |
| from test.support import requires | |
| from test.test_tkinter.support import setUpModule # noqa: F401 | |
| from test.test_tkinter.support import AbstractTkTest | |
| requires('gui') | |
| class ScrolledTextTest(AbstractTkTest, unittest.TestCase): | |
| def create(self, **kwargs): | |
| st = ScrolledText(self.root, **kwargs) | |
| self.addCleanup(st.destroy) | |
| return st | |
| def test_create(self): | |
| st = self.create(background='red', height=5) | |
| # It is a Text widget held in a Frame together with a Scrollbar. | |
| self.assertIsInstance(st, tkinter.Text) | |
| # By default the frame and scroll bar are the classic tkinter widgets. | |
| self.assertIsInstance(st.frame, tkinter.Frame) | |
| self.assertNotIsInstance(st.frame, ttk.Frame) | |
| self.assertIsInstance(st.vbar, tkinter.Scrollbar) | |
| self.assertNotIsInstance(st.vbar, ttk.Scrollbar) | |
| self.assertEqual(st.winfo_parent(), str(st.frame)) | |
| # str() returns the frame, so that geometry managers manage it. | |
| self.assertEqual(str(st), str(st.frame)) | |
| # Keyword options configure the Text. | |
| self.assertEqual(str(st['background']), 'red') | |
| self.assertEqual(st['height'], 5 if self.wantobjects else '5') | |
| def test_use_ttk(self): | |
| # use_ttk=True uses the themed tkinter.ttk widgets. | |
| st = self.create(use_ttk=True) | |
| self.assertIsInstance(st.frame, ttk.Frame) | |
| self.assertIsInstance(st.vbar, ttk.Scrollbar) | |
| def test_text_methods(self): | |
| st = self.create() | |
| st.insert('1.0', 'hello\nworld') | |
| self.assertEqual(st.get('1.0', 'end-1c'), 'hello\nworld') | |
| self.assertEqual(st.index('end-1c'), '2.5') | |
| st.delete('1.0', 'end') | |
| self.assertEqual(st.get('1.0', 'end-1c'), '') | |
| def test_geometry_methods(self): | |
| st = self.create() | |
| # configure is not redirected; it configures the Text. | |
| st.configure(height=8) | |
| self.assertEqual(st['height'], 8 if self.wantobjects else '8') | |
| # Pack, Grid and Place methods are redirected to the frame. | |
| st.pack() | |
| self.root.update() | |
| self.assertEqual(st.frame.winfo_manager(), 'pack') | |
| self.assertEqual(st.pack_info(), st.frame.pack_info()) | |
| st.pack_forget() | |
| self.assertEqual(st.frame.winfo_manager(), '') | |
| def test_scrollbar(self): | |
| st = self.create(height=5) | |
| st.pack() | |
| st.insert('1.0', '\n'.join(map(str, range(100)))) | |
| self.root.update() | |
| # The scrollbar tracks the text view. | |
| self.assertEqual(st.vbar.get(), st.yview()) | |
| st.yview_moveto(1.0) | |
| self.root.update() | |
| self.assertEqual(st.vbar.get()[1], 1.0) | |
| if __name__ == "__main__": | |
| unittest.main() |