cpython/Lib/lib-tk/test/test_ttk/test_style.py

100 lines
3.0 KiB
Python

import unittest
import Tkinter
import ttk
from test.test_support import requires, run_unittest
import support
requires('gui')
class StyleTest(unittest.TestCase):
def setUp(self):
self.root = support.get_tk_root()
self.style = ttk.Style(self.root)
def tearDown(self):
# As tests have shown, these tests are likely to deliver
# <<ThemeChanged>> events after the root is destroyed, so
# lets let them happen now.
self.root.update_idletasks()
self.root.destroy()
def test_configure(self):
style = self.style
style.configure('TButton', background='yellow')
self.failUnlessEqual(style.configure('TButton', 'background'),
'yellow')
self.failUnless(isinstance(style.configure('TButton'), dict))
def test_map(self):
style = self.style
style.map('TButton', background=[('active', 'background', 'blue')])
self.failUnlessEqual(style.map('TButton', 'background'),
[('active', 'background', 'blue')])
self.failUnless(isinstance(style.map('TButton'), dict))
def test_lookup(self):
style = self.style
style.configure('TButton', background='yellow')
style.map('TButton', background=[('active', 'background', 'blue')])
self.failUnlessEqual(style.lookup('TButton', 'background'), 'yellow')
self.failUnlessEqual(style.lookup('TButton', 'background',
['active', 'background']), 'blue')
self.failUnlessEqual(style.lookup('TButton', 'optionnotdefined',
default='iknewit'), 'iknewit')
def test_layout(self):
style = self.style
self.failUnlessRaises(Tkinter.TclError, style.layout, 'NotALayout')
tv_style = style.layout('Treeview')
# "erase" Treeview layout
style.layout('Treeview', '')
self.failUnlessEqual(style.layout('Treeview'),
[('null', {'sticky': 'nswe'})]
)
# restore layout
style.layout('Treeview', tv_style)
self.failUnlessEqual(style.layout('Treeview'), tv_style)
# should return a list
self.failUnless(isinstance(style.layout('TButton'), list))
# correct layout, but "option" doesn't exist as option
self.failUnlessRaises(Tkinter.TclError, style.layout, 'Treeview',
[('name', {'option': 'inexistant'})])
def test_theme_use(self):
self.failUnlessRaises(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.failIf(curr_theme == new_theme)
self.failIf(new_theme != self.style.theme_use())
self.style.theme_use(curr_theme)
tests_gui = (StyleTest, )
if __name__ == "__main__":
run_unittest(*tests_gui)