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# (C) Copyright 2005-2023 Enthought, Inc., Austin, TX
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD
# license included in LICENSE.txt and may be redistributed only under
# the conditions described in the aforementioned license. The license
# is also available online at http://www.enthought.com/licenses/BSD.txt
#
# Thanks for using Enthought open source!
import unittest
from traits.etsconfig.api import ETSConfig
from pyface.base_toolkit import find_toolkit, import_toolkit
class TestToolkit(unittest.TestCase):
def test_import_null_toolkit(self):
toolkit = import_toolkit("null")
self.assertEqual(toolkit.package, "pyface")
self.assertEqual(toolkit.toolkit, "null")
def test_missing_toolkit(self):
# test that we get an error with an undefined toolkit
with self.assertRaises(RuntimeError):
import_toolkit("nosuchtoolkit")
def test_find_current_toolkit_no_etsconfig(self):
old_etsconfig_toolkit = ETSConfig._toolkit
expected_toolkit = (
"qt"
if old_etsconfig_toolkit == "qt4"
else old_etsconfig_toolkit
)
ETSConfig._toolkit = ""
try:
toolkit = find_toolkit("pyface.toolkits", old_etsconfig_toolkit)
self.assertEqual(toolkit.package, "pyface")
self.assertEqual(toolkit.toolkit, expected_toolkit)
self.assertEqual(ETSConfig.toolkit, expected_toolkit)
finally:
ETSConfig._toolkit = old_etsconfig_toolkit
def test_find_null_toolkit_no_etsconfig(self):
old_etsconfig_toolkit = ETSConfig._toolkit
ETSConfig._toolkit = ""
try:
toolkit = find_toolkit("pyface.toolkits", "null")
self.assertEqual(toolkit.package, "pyface")
self.assertEqual(toolkit.toolkit, "null")
self.assertEqual(ETSConfig.toolkit, "null")
finally:
ETSConfig._toolkit = old_etsconfig_toolkit
def test_find_nonexistent_toolkit_no_etsconfig(self):
old_etsconfig_toolkit = ETSConfig._toolkit
ETSConfig._toolkit = ""
try:
toolkit = find_toolkit("pyface.toolkits", "nonexistent")
self.assertEqual(toolkit.package, "pyface")
self.assertEqual(toolkit.toolkit, "null")
self.assertEqual(ETSConfig.toolkit, "null")
finally:
ETSConfig._toolkit = old_etsconfig_toolkit
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