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# (C) Copyright 2005-2025 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 apptools._testing.optional_dependencies import (
numpy,
requires_numpy,
)
if numpy is not None:
from apptools.selection.api import ListSelection
@requires_numpy
class TestListSelection(unittest.TestCase):
def test_list_selection(self):
all_items = ["a", "b", "c", "d"]
selected = ["d", "b"]
list_selection = ListSelection.from_available_items(
provider_id="foo", selected=selected, all_items=all_items
)
self.assertEqual(list_selection.items, selected)
self.assertEqual(list_selection.indices, [3, 1])
def test_list_selection_of_sequence_items(self):
all_items = [["a", "b"], ["c", "d"], ["e", "f"]]
selected = [all_items[2], all_items[1]]
list_selection = ListSelection.from_available_items(
provider_id="foo", selected=selected, all_items=all_items
)
self.assertEqual(list_selection.items, selected)
self.assertEqual(list_selection.indices, [2, 1])
def test_list_selection_of_numpy_array_items(self):
data = numpy.arange(10)
all_items = [data, data + 10, data + 30]
selected = [all_items[0], all_items[2]]
list_selection = ListSelection.from_available_items(
provider_id="foo", selected=selected, all_items=all_items
)
self.assertEqual(list_selection.items, selected)
self.assertEqual(list_selection.indices, [0, 2])
def test_list_selection_with_invalid_selected_items(self):
data = numpy.arange(10)
all_items = [data, data + 10, data + 30]
selected = [
data - 10,
]
with self.assertRaises(ValueError):
ListSelection.from_available_items(
provider_id="foo", selected=selected, all_items=all_items
)
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