import unittest
import Tkinter as tkinter
import ttk
from test.test_support import requires, run_unittest
from test_ttk.support import AbstractTkTest
requires('gui')
class StyleTest(AbstractTkTest, unittest.TestCase):
def setUp(self):
super(StyleTest, self).setUp()
self.style = ttk.Style(self.root)
def test_configure(self):
style = self.style
style.configure('TButton', background='yellow')
self.assertEqual(style.configure('TButton', 'background'),
'yellow')
self.assertIsInstance(style.configure('TButton'), dict)
def test_map(self):
style = self.style
style.map('TButton', background=[('active', 'background', 'blue')])
self.assertEqual(style.map('TButton', 'background'),
[('active', 'background', 'blue')] if self.wantobjects else
[('active background', 'blue')])
self.assertIsInstance(style.map('TButton'), dict)
def test_lookup(self):
style = self.style
style.configure('TButton', background='yellow')
style.map('TButton', background=[('active', 'background', 'blue')])
self.assertEqual(style.lookup('TButton', 'background'), 'yellow')
self.assertEqual(style.lookup('TButton', 'background',
['active', 'background']), 'blue')
self.assertEqual(style.lookup('TButton', 'optionnotdefined',
default='iknewit'), 'iknewit')
def test_layout(self):
style = self.style
self.assertRaises(tkinter.TclError, style.layout, 'NotALayout')
tv_style = style.layout('Treeview')
# "erase" Treeview layout
style.layout('Treeview', '')
self.assertEqual(style.layout('Treeview'),
[('null', {'sticky': 'nswe'})]
)
# restore layout
style.layout('Treeview', tv_style)
self.assertEqual(style.layout('Treeview'), tv_style)
# should return a list
self.assertIsInstance(style.layout('TButton'), list)
# correct layout, but "option" doesn't exist as option
self.assertRaises(tkinter.TclError, style.layout, 'Treeview',
[('name', {'option': 'inexistent'})])
def test_theme_use(self):
self.assertRaises(tkinter.TclError, self.style.theme_use,
'nonexistingname')
curr_theme = self.style.theme_use()
new_theme = None
for theme in self.style.theme_names():
if theme != curr_theme:
new_theme = theme
self.style.theme_use(theme)
break
else:
# just one theme available, can't go on with tests
return
self.assertFalse(curr_theme == new_theme)
self.assertFalse(new_theme != self.style.theme_use())
self.style.theme_use(curr_theme)
tests_gui = (StyleTest, )
if __name__ == "__main__":
run_unittest(*tests_gui)
