def test_package_global_default_preferences(self):
""" package global default preferences """
from enthought.preferences.api import get_default_preferences
from enthought.preferences.api import set_default_preferences
set_default_preferences(self.preferences)
self.assertEqual(self.preferences, get_default_preferences())
return
def test_scoped_preferences(self):
""" scoped preferences """
p = set_default_preferences(ScopedPreferences())
# Set a preference value in the default scope.
p.set('default/acme.ui.bgcolor', 'blue')
class AcmeUIPreferencesHelper(PreferencesHelper):
""" A helper! """
# The path to the preferences node that contains our preferences.
preferences_path = 'acme.ui'
# The traits that we want to initialize from preferences.
bgcolor = Str
# A trait for a preference that does not exist yet.
name = Str
helper = AcmeUIPreferencesHelper()
# Make sure the trait is set!
self.assertEqual('blue', helper.bgcolor)
# And that the non-existent trait gets the default value.
self.assertEqual('', helper.name)
return
def test_scoped_preferences(self):
""" scoped preferences """
p = set_default_preferences(ScopedPreferences())
# Set a preference value in the default scope.
p.set('default/acme.ui.bgcolor', 'blue')
class AcmeUIPreferencesHelper(PreferencesHelper):
""" A helper! """
# The path to the preferences node that contains our preferences.
preferences_path = 'acme.ui'
# The traits that we want to initialize from preferences.
bgcolor = Str
# A trait for a preference that does not exist yet.
name = Str
helper = AcmeUIPreferencesHelper()
# Make sure the trait is set!
self.assertEqual('blue', helper.bgcolor)
# And that the non-existent trait gets the default value.
self.assertEqual('', helper.name)
return
def setUp(self):
""" Prepares the test fixture before each test method is called. """
self.preferences = set_default_preferences(Preferences())
# The filename of the example preferences file.
self.example = resource_filename(PKG, 'example.ini')
return
def setUp(self):
""" Prepares the test fixture before each test method is called. """
self.preferences = set_default_preferences(Preferences())
# The filename of the example preferences file.
self.example = resource_filename(PKG, 'example.ini')
return
def setUp(self):
"""Called before each test is run"""
self.preferences = set_default_preferences(Preferences())
# The filename of the example preferences file.
pref_file = resource_filename('enthought.mayavi.tests',
'test_preference.ini')
self.preferences.load(pref_file)
self.pref = TestPreference()
self.mirror = PreferencesMirror()
self.mirror.preferences = self.pref
# Enthought library imports.
from enthought.traits.api import Color, Int, Float, Str
from enthought.traits.ui.api import View
# Local imports.
from enthought.preferences.api import Preferences, PreferencesHelper
from enthought.preferences.api import get_default_preferences
from enthought.preferences.api import set_default_preferences
from enthought.preferences.ui.api import PreferencesManager, PreferencesPage
# Create a preferences collection from a file and make it the default root
# preferences node for all preferences helpers etc.
set_default_preferences(Preferences(filename='example.ini'))
class AcmePreferencesPage(PreferencesPage):
""" A preference page for the Acme preferences. """
#### 'IPreferencesPage' interface #########################################
# The page's category (e.g. 'General/Appearence'). The empty string means
# that this is a top-level page.
category = ''
# The page's help identifier (optional). If a help Id *is* provided then
# there will be a 'Help' button shown on the preference page.
help_id = ''
def test_load_and_save(self):
""" load and save """
p = self.preferences
p.load(self.example)
class AcmeUI(HasTraits):
""" The Acme UI class! """
# The traits that we want to initialize from preferences.
bgcolor = Str('red')
width = Int(60)
ratio = Float(2.0)
visible = Bool(False)
acme_ui = AcmeUI()
# Make some bindings.
bind_preference(acme_ui, 'bgcolor', 'acme.ui.bgcolor')
bind_preference(acme_ui, 'width', 'acme.ui.width')
bind_preference(acme_ui, 'ratio', 'acme.ui.ratio')
bind_preference(acme_ui, 'visible', 'acme.ui.visible')
# Make sure the helper was initialized properly (with the values in
# the loaded .ini file *not* the trait defaults!).
self.assertEqual('blue', acme_ui.bgcolor)
self.assertEqual(50, acme_ui.width)
self.assertEqual(1.0, acme_ui.ratio)
self.assertEqual(True, acme_ui.visible)
# Make a change to one of the preference values.
p.set('acme.ui.bgcolor', 'yellow')
self.assertEqual('yellow', acme_ui.bgcolor)
self.assertEqual('yellow', p.get('acme.ui.bgcolor'))
# Save the preferences to a different file.
tmpdir = tempfile.mkdtemp()
tmp = join(tmpdir, 'tmp.ini')
p.save(tmp)
# Load the preferences again from that file.
p = set_default_preferences(Preferences())
p.load(tmp)
acme_ui = AcmeUI()
# Make some bindings.
bind_preference(acme_ui, 'bgcolor', 'acme.ui.bgcolor')
bind_preference(acme_ui, 'width', 'acme.ui.width')
bind_preference(acme_ui, 'ratio', 'acme.ui.ratio')
bind_preference(acme_ui, 'visible', 'acme.ui.visible')
# Make sure the helper was initialized properly (with the values in
# the .ini file *not* the trait defaults!).
self.assertEqual('yellow', acme_ui.bgcolor)
self.assertEqual(50, acme_ui.width)
self.assertEqual(1.0, acme_ui.ratio)
self.assertEqual(True, acme_ui.visible)
# Clean up!
os.remove(tmp)
os.removedirs(tmpdir)
return
def test_load_and_save(self):
""" load and save """
p = self.preferences
p.load(self.example)
class AcmeUI(HasTraits):
""" The Acme UI class! """
# The traits that we want to initialize from preferences.
bgcolor = Str('red')
width = Int(60)
ratio = Float(2.0)
visible = Bool(False)
acme_ui = AcmeUI()
# Make some bindings.
bind_preference(acme_ui, 'bgcolor', 'acme.ui.bgcolor')
bind_preference(acme_ui, 'width', 'acme.ui.width')
bind_preference(acme_ui, 'ratio', 'acme.ui.ratio')
bind_preference(acme_ui, 'visible', 'acme.ui.visible')
# Make sure the helper was initialized properly (with the values in
# the loaded .ini file *not* the trait defaults!).
self.assertEqual('blue', acme_ui.bgcolor)
self.assertEqual(50, acme_ui.width)
self.assertEqual(1.0, acme_ui.ratio)
self.assertEqual(True, acme_ui.visible)
# Make a change to one of the preference values.
p.set('acme.ui.bgcolor', 'yellow')
self.assertEqual('yellow', acme_ui.bgcolor)
self.assertEqual('yellow', p.get('acme.ui.bgcolor'))
# Save the preferences to a different file.
tmpdir = tempfile.mkdtemp()
tmp = join(tmpdir, 'tmp.ini')
p.save(tmp)
# Load the preferences again from that file.
p = set_default_preferences(Preferences())
p.load(tmp)
acme_ui = AcmeUI()
# Make some bindings.
bind_preference(acme_ui, 'bgcolor', 'acme.ui.bgcolor')
bind_preference(acme_ui, 'width', 'acme.ui.width')
bind_preference(acme_ui, 'ratio', 'acme.ui.ratio')
bind_preference(acme_ui, 'visible', 'acme.ui.visible')
# Make sure the helper was initialized properly (with the values in
# the .ini file *not* the trait defaults!).
self.assertEqual('yellow', acme_ui.bgcolor)
self.assertEqual(50, acme_ui.width)
self.assertEqual(1.0, acme_ui.ratio)
self.assertEqual(True, acme_ui.visible)
# Clean up!
os.remove(tmp)
os.removedirs(tmpdir)
return
