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162 lines
5.3 KiB
162 lines
5.3 KiB
"""Test tooltip, coverage 100%.
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Coverage is 100% after excluding 6 lines with "# pragma: no cover".
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They involve TclErrors that either should or should not happen in a
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particular situation, and which are 'pass'ed if they do.
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"""
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from idlelib.tooltip import TooltipBase, Hovertip
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from test.support import requires
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requires('gui')
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from functools import wraps
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import time
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from tkinter import Button, Tk, Toplevel
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import unittest
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def setUpModule():
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global root
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root = Tk()
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def tearDownModule():
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global root
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root.update_idletasks()
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root.destroy()
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del root
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def add_call_counting(func):
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@wraps(func)
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def wrapped_func(*args, **kwargs):
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wrapped_func.call_args_list.append((args, kwargs))
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return func(*args, **kwargs)
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wrapped_func.call_args_list = []
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return wrapped_func
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def _make_top_and_button(testobj):
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global root
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top = Toplevel(root)
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testobj.addCleanup(top.destroy)
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top.title("Test tooltip")
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button = Button(top, text='ToolTip test button')
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button.pack()
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testobj.addCleanup(button.destroy)
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top.lift()
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return top, button
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class ToolTipBaseTest(unittest.TestCase):
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def setUp(self):
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self.top, self.button = _make_top_and_button(self)
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def test_base_class_is_unusable(self):
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global root
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top = Toplevel(root)
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self.addCleanup(top.destroy)
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button = Button(top, text='ToolTip test button')
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button.pack()
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self.addCleanup(button.destroy)
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with self.assertRaises(NotImplementedError):
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tooltip = TooltipBase(button)
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tooltip.showtip()
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class HovertipTest(unittest.TestCase):
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def setUp(self):
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self.top, self.button = _make_top_and_button(self)
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def is_tipwindow_shown(self, tooltip):
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return tooltip.tipwindow and tooltip.tipwindow.winfo_viewable()
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def test_showtip(self):
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tooltip = Hovertip(self.button, 'ToolTip text')
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self.addCleanup(tooltip.hidetip)
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self.assertFalse(self.is_tipwindow_shown(tooltip))
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tooltip.showtip()
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self.assertTrue(self.is_tipwindow_shown(tooltip))
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def test_showtip_twice(self):
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tooltip = Hovertip(self.button, 'ToolTip text')
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self.addCleanup(tooltip.hidetip)
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self.assertFalse(self.is_tipwindow_shown(tooltip))
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tooltip.showtip()
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self.assertTrue(self.is_tipwindow_shown(tooltip))
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orig_tipwindow = tooltip.tipwindow
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tooltip.showtip()
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self.assertTrue(self.is_tipwindow_shown(tooltip))
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self.assertIs(tooltip.tipwindow, orig_tipwindow)
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def test_hidetip(self):
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tooltip = Hovertip(self.button, 'ToolTip text')
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self.addCleanup(tooltip.hidetip)
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tooltip.showtip()
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tooltip.hidetip()
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self.assertFalse(self.is_tipwindow_shown(tooltip))
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def test_showtip_on_mouse_enter_no_delay(self):
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tooltip = Hovertip(self.button, 'ToolTip text', hover_delay=None)
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self.addCleanup(tooltip.hidetip)
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tooltip.showtip = add_call_counting(tooltip.showtip)
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root.update()
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self.assertFalse(self.is_tipwindow_shown(tooltip))
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self.button.event_generate('<Enter>', x=0, y=0)
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root.update()
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self.assertTrue(self.is_tipwindow_shown(tooltip))
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self.assertGreater(len(tooltip.showtip.call_args_list), 0)
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def test_hover_with_delay(self):
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# Run multiple tests requiring an actual delay simultaneously.
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# Test #1: A hover tip with a non-zero delay appears after the delay.
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tooltip1 = Hovertip(self.button, 'ToolTip text', hover_delay=100)
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self.addCleanup(tooltip1.hidetip)
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tooltip1.showtip = add_call_counting(tooltip1.showtip)
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root.update()
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self.assertFalse(self.is_tipwindow_shown(tooltip1))
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self.button.event_generate('<Enter>', x=0, y=0)
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root.update()
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self.assertFalse(self.is_tipwindow_shown(tooltip1))
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# Test #2: A hover tip with a non-zero delay doesn't appear when
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# the mouse stops hovering over the base widget before the delay
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# expires.
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tooltip2 = Hovertip(self.button, 'ToolTip text', hover_delay=100)
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self.addCleanup(tooltip2.hidetip)
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tooltip2.showtip = add_call_counting(tooltip2.showtip)
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root.update()
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self.button.event_generate('<Enter>', x=0, y=0)
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root.update()
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self.button.event_generate('<Leave>', x=0, y=0)
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root.update()
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time.sleep(0.15)
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root.update()
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# Test #1 assertions.
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self.assertTrue(self.is_tipwindow_shown(tooltip1))
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self.assertGreater(len(tooltip1.showtip.call_args_list), 0)
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# Test #2 assertions.
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self.assertFalse(self.is_tipwindow_shown(tooltip2))
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self.assertEqual(tooltip2.showtip.call_args_list, [])
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def test_hidetip_on_mouse_leave(self):
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tooltip = Hovertip(self.button, 'ToolTip text', hover_delay=None)
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self.addCleanup(tooltip.hidetip)
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tooltip.showtip = add_call_counting(tooltip.showtip)
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root.update()
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self.button.event_generate('<Enter>', x=0, y=0)
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root.update()
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self.button.event_generate('<Leave>', x=0, y=0)
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root.update()
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self.assertFalse(self.is_tipwindow_shown(tooltip))
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self.assertGreater(len(tooltip.showtip.call_args_list), 0)
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if __name__ == '__main__':
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unittest.main(verbosity=2)
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