def test_sync_anytrait_items_not_event(self):
""" Test sychronizing trait with name *_items which is a normal trait
rather than an event trait for listening to list/dict/set mutation.
"""
class MyPreferencesHelper(PreferencesHelper):
preferences_path = Str('my_section')
names_items = Str()
helper = MyPreferencesHelper(preferences=self.preferences)
helper.names_items = "Hello"
self.preferences.save(self.tmpfile)
new_preferences = Preferences()
new_preferences.load(self.tmpfile)
self.assertEqual(
sorted(new_preferences.keys("my_section")),
["names_items"]
)
self.assertEqual(
new_preferences.get("my_section.names_items"),
str(helper.names_items),
)
def test_preferences_page_apply_skip_items_traits(self):
""" Test _items traits from List mutation are skipped. """
# Regression test for enthought/apptools#129
class MyPreferencesPage(PreferencesPage):
preferences_path = "my_ref.pref"
names = List(Str())
preferences = Preferences()
pref_page = MyPreferencesPage(
preferences=preferences,
names=["1"],
)
pref_page.names.append("2")
pref_page.apply()
self.assertEqual(preferences.get("my_ref.pref.names"), str(["1", "2"]))
self.assertEqual(preferences.keys("my_ref.pref"), ["names"])
def test_preferences_page_apply(self):
""" Test applying the preferences """
# this sets up imitate Mayavi usage.
class MyPreferencesPage(PreferencesPage):
# the following set default values for class traits
category = "Application"
help_id = ""
name = "Note"
preferences_path = "my_ref.pref"
# custom preferences
backend = Enum("auto", "simple", "test")
traits_view = View(Group(Item("backend")))
preferences = Preferences()
pref_page = MyPreferencesPage(
preferences=preferences,
category="Another Application",
help_id="this_wont_be_saved",
name="Different Note",
# custom preferences
backend="simple",
)
pref_page.apply()
self.assertEqual(preferences.get("my_ref.pref.backend"), "simple")
self.assertEqual(preferences.keys("my_ref.pref"), ["backend"])
# this is not saved by virtue of it being static and never assigned to
self.assertIsNone(preferences.get("my_ref.pref.traits_view"))
# These are skipped because this trait is defined on the
# PreferencesPage.
self.assertIsNone(preferences.get("my_ref.pref.help_id"))
self.assertIsNone(preferences.get("my_ref.pref.category"))
self.assertIsNone(preferences.get("my_ref.pref.name"))
def test_sync_anytrait_items_overload(self):
""" Test sychronizing trait with name *_items not to be mistaken
as the event trait for mutating list/dict/set
"""
class MyPreferencesPage(PreferencesPage):
preferences_path = Str('my_section')
names_items = Str()
preferences = Preferences()
pref_page = MyPreferencesPage(preferences=preferences)
pref_page.names_items = "Hello"
pref_page.apply()
self.assertEqual(sorted(preferences.keys("my_section")),
["names_items"])
self.assertEqual(
preferences.get("my_section.names_items"),
"Hello",
)
def test_mutate_list_of_values(self):
""" Mutated list should be saved and _items events not to be
saved in the preferences.
"""
# Regression test for enthought/apptools#129
class MyPreferencesHelper(PreferencesHelper):
preferences_path = Str('my_section')
list_of_str = List(Str)
helper = MyPreferencesHelper(list_of_str=["1"])
# Now modify the list to fire _items event
helper.list_of_str.append("2")
self.preferences.save(self.tmpfile)
new_preferences = Preferences()
new_preferences.load(self.tmpfile)
self.assertEqual(
new_preferences.get("my_section.list_of_str"), str(["1", "2"])
)
self.assertEqual(new_preferences.keys("my_section"), ["list_of_str"])
