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#------------------------------------------------------------------------------
#
# Copyright (c) 2012, Enthought, Inc.
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD
# license included in enthought/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
#
# Author: Pietro Berkes
# Date: Jan 2012
#
#------------------------------------------------------------------------------
from traits.has_traits import HasTraits
from traits.trait_types import Float, List, Instance
from traitsui.handler import ModelView
from traitsui.view import View
from traitsui.item import Item
from traitsui.editors.csv_list_editor import CSVListEditor
import traitsui.editors.csv_list_editor as csv_list_editor
from traitsui.tests._tools import *
class ListOfFloats(HasTraits):
data = List(Float)
class ListOfFloatsWithCSVEditor(ModelView):
model = Instance(ListOfFloats)
traits_view = View(
Item(label="Close the window to append data"),
Item('model.data', editor = CSVListEditor()),
buttons = ['OK']
)
@skip_if_null
def test_csv_editor_disposal():
# Bug: CSVListEditor does not un-hook the traits notifications after its
# disposal, causing errors when the hooked data is accessed after
# the window is closed (Issue #48)
try:
with store_exceptions_on_all_threads():
list_of_floats = ListOfFloats(data=[1,2,3])
csv_view = ListOfFloatsWithCSVEditor(model=list_of_floats)
ui = csv_view.edit_traits()
press_ok_button(ui)
# raise an exception if still hooked
list_of_floats.data.append(2)
except AttributeError:
# if all went well, we should not be here
assert False, "AttributeError raised"
@skip_if_null
def test_csv_editor_external_append():
# Behavior: CSV editor is notified when an element is appended to the
# list externally
def _wx_get_text_value(ui):
txt_ctrl = ui.control.FindWindowByName('text')
return txt_ctrl.GetValue()
def _qt_get_text_value(ui):
from pyface import qt
txt_ctrl = ui.control.findChild(qt.QtGui.QLineEdit)
return txt_ctrl.text()
with store_exceptions_on_all_threads():
list_of_floats = ListOfFloats(data=[1.0])
csv_view = ListOfFloatsWithCSVEditor(model=list_of_floats)
ui = csv_view.edit_traits()
# add element to list, make sure that editor knows about it
list_of_floats.data.append(3.14)
# get current value from editor
if is_current_backend_wx():
value_str = _wx_get_text_value(ui)
elif is_current_backend_qt4():
value_str = _qt_get_text_value(ui)
expected = csv_list_editor._format_list_str([1.0, 3.14])
nose.tools.assert_equal(value_str, expected)
press_ok_button(ui)
if __name__ == '__main__':
# Executing the file opens the dialog for manual testing
list_of_floats = ListOfFloats(data=[1,2,3])
csv_view = ListOfFloatsWithCSVEditor(model=list_of_floats)
csv_view.configure_traits()
# this call will raise an AttributeError in commit
# 4ecb2fa8f0ef385d55a2a4062d821b0415777973
# This is because the editor does not un-hook the traits notifications
# after its disposal
list_of_floats.data.append(2)
print list_of_floats.data
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