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# (C) Copyright 2005-2023 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!
from unittest import TestCase
from pyface.data_view.index_manager import (
IntIndexManager, Root, TupleIndexManager,
)
class IndexManagerMixin:
def test_root_has_no_parent(self):
with self.assertRaises(IndexError):
self.index_manager.get_parent_and_row(Root)
def test_root_to_sequence(self):
result = self.index_manager.to_sequence(Root)
self.assertEqual(result, ())
def test_root_from_sequence(self):
result = self.index_manager.from_sequence([])
self.assertIs(result, Root)
def test_root_id_round_trip(self):
root_id = self.index_manager.id(Root)
result = self.index_manager.from_id(root_id)
self.assertIs(result, Root)
def test_simple_sequence_round_trip(self):
sequence = (5,)
index = self.index_manager.from_sequence(sequence)
result = self.index_manager.to_sequence(index)
self.assertEqual(result, sequence)
def test_simple_sequence_invalid(self):
sequence = (-5,)
with self.assertRaises(IndexError):
self.index_manager.from_sequence(sequence)
def test_simple_sequence_to_parent_row(self):
sequence = (5,)
index = self.index_manager.from_sequence(sequence)
result = self.index_manager.get_parent_and_row(index)
self.assertEqual(result, (Root, 5))
def test_simple_row_round_trip(self):
index = self.index_manager.create_index(Root, 5)
result = self.index_manager.get_parent_and_row(index)
self.assertEqual(result, (Root, 5))
def test_simple_row_invalid(self):
with self.assertRaises(IndexError):
self.index_manager.create_index(Root, -5)
def test_simple_row_to_sequence(self):
index = self.index_manager.create_index(Root, 5)
result = self.index_manager.to_sequence(index)
self.assertEqual(result, (5,))
def test_simple_id_round_trip(self):
index = self.index_manager.create_index(Root, 5)
id = self.index_manager.id(index)
result = self.index_manager.from_id(id)
self.assertEqual(result, index)
class TestIntIndexManager(IndexManagerMixin, TestCase):
def setUp(self):
super().setUp()
self.index_manager = IntIndexManager()
def tearDown(self):
self.index_manager.reset()
def test_create_index_root(self):
result = self.index_manager.create_index(Root, 5)
self.assertEqual(result, 5)
def test_create_index_leaf(self):
with self.assertRaises(RuntimeError):
self.index_manager.create_index(5, 1)
def test_create_index_negative(self):
with self.assertRaises(IndexError):
self.index_manager.create_index(Root, -5)
class TestTupleIndexManager(IndexManagerMixin, TestCase):
def setUp(self):
super().setUp()
self.index_manager = TupleIndexManager()
def tearDown(self):
self.index_manager.reset()
def test_complex_sequence_round_trip(self):
sequence = (5, 6, 7, 8, 9, 10)
index = self.index_manager.from_sequence(sequence)
result = self.index_manager.to_sequence(index)
self.assertEqual(result, sequence)
def test_complex_sequence_identical_index(self):
sequence = (5, 6, 7, 8, 9, 10)
index_1 = self.index_manager.from_sequence(sequence[:])
index_2 = self.index_manager.from_sequence(sequence[:])
self.assertIs(index_1, index_2)
def test_complex_sequence_to_parent_row(self):
sequence = (5, 6, 7, 8, 9, 10)
index = self.index_manager.from_sequence(sequence)
parent, row = self.index_manager.get_parent_and_row(index)
self.assertEqual(row, 10)
self.assertIs(
parent,
self.index_manager.from_sequence((5, 6, 7, 8, 9))
)
def test_complex_index_round_trip(self):
sequence = (5, 6, 7, 8, 9, 10)
parent = Root
for depth, row in enumerate(sequence):
with self.subTest(depth=depth):
index = self.index_manager.create_index(parent, row)
result = self.index_manager.get_parent_and_row(index)
self.assertIs(result[0], parent)
self.assertEqual(result[1], row)
parent = index
def test_complex_index_create_index_identical(self):
sequence = (5, 6, 7, 8, 9, 10)
parent = Root
for depth, row in enumerate(sequence):
with self.subTest(depth=depth):
index_1 = self.index_manager.create_index(parent, row)
index_2 = self.index_manager.create_index(parent, row)
self.assertIs(index_1, index_2)
parent = index_1
def test_complex_index_to_sequence(self):
sequence = (5, 6, 7, 8, 9, 10)
parent = Root
for depth, row in enumerate(sequence):
with self.subTest(depth=depth):
index = self.index_manager.create_index(parent, row)
result = self.index_manager.to_sequence(index)
self.assertEqual(result, sequence[:depth+1])
parent = index
def test_complex_index_sequence_round_trip(self):
parent = Root
for depth, row in enumerate([5, 6, 7, 8, 9, 10]):
with self.subTest(depth=depth):
index = self.index_manager.create_index(parent, row)
sequence = self.index_manager.to_sequence(index)
result = self.index_manager.from_sequence(sequence)
self.assertIs(result, index)
parent = index
def test_complex_index_id_round_trip(self):
sequence = (5, 6, 7, 8, 9, 10)
parent = Root
for depth, row in enumerate(sequence):
with self.subTest(depth=depth):
index = self.index_manager.create_index(parent, row)
id = self.index_manager.id(index)
self.assertIsInstance(id, int)
result = self.index_manager.from_id(id)
self.assertIs(result, index)
parent = index
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