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import numpy
from traits.testing.unittest_tools import unittest
from apptools.selection.api import ListSelection
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.array(range(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.array(range(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)
if __name__ == '__main__':
unittest.main()
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