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Serhiy Storchaka
a9db5cb52f
Add a test for the ScrolledText widget, which had no tests: that it is a Text widget held in a Frame with a Scrollbar, that Text methods work, that the geometry manager methods are redirected to the frame while configure is not, and that the scrollbar tracks the text view. Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
66 lines
2.3 KiB
Python
66 lines
2.3 KiB
Python
import unittest
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import tkinter
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from tkinter.scrolledtext import ScrolledText
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from test.support import requires
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from test.test_tkinter.support import setUpModule # noqa: F401
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from test.test_tkinter.support import AbstractTkTest
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requires('gui')
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class ScrolledTextTest(AbstractTkTest, unittest.TestCase):
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def create(self, **kwargs):
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st = ScrolledText(self.root, **kwargs)
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self.addCleanup(st.destroy)
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return st
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def test_create(self):
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st = self.create(background='red', height=5)
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# It is a Text widget held in a Frame together with a Scrollbar.
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self.assertIsInstance(st, tkinter.Text)
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self.assertIsInstance(st.frame, tkinter.Frame)
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self.assertIsInstance(st.vbar, tkinter.Scrollbar)
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self.assertEqual(st.winfo_parent(), str(st.frame))
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# str() returns the frame, so that geometry managers manage it.
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self.assertEqual(str(st), str(st.frame))
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# Keyword options configure the Text.
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self.assertEqual(str(st['background']), 'red')
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self.assertEqual(st['height'], 5 if self.wantobjects else '5')
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def test_text_methods(self):
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st = self.create()
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st.insert('1.0', 'hello\nworld')
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self.assertEqual(st.get('1.0', 'end-1c'), 'hello\nworld')
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self.assertEqual(st.index('end-1c'), '2.5')
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st.delete('1.0', 'end')
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self.assertEqual(st.get('1.0', 'end-1c'), '')
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def test_geometry_methods(self):
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st = self.create()
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# configure is not redirected; it configures the Text.
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st.configure(height=8)
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self.assertEqual(st['height'], 8 if self.wantobjects else '8')
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# Pack, Grid and Place methods are redirected to the frame.
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st.pack()
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self.root.update()
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self.assertEqual(st.frame.winfo_manager(), 'pack')
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self.assertEqual(st.pack_info(), st.frame.pack_info())
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st.pack_forget()
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self.assertEqual(st.frame.winfo_manager(), '')
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def test_scrollbar(self):
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st = self.create(height=5)
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st.pack()
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st.insert('1.0', '\n'.join(map(str, range(100))))
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self.root.update()
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# The scrollbar tracks the text view.
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self.assertEqual(st.vbar.get(), st.yview())
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st.yview_moveto(1.0)
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self.root.update()
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self.assertEqual(st.vbar.get()[1], 1.0)
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if __name__ == "__main__":
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unittest.main()
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