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# (C) Copyright 2004-2023 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!
import unittest
from traitsui.testing.tester._ui_tester_registry._layout import (
column_major_to_row_major,
)
class TestLayout(unittest.TestCase):
def test_column_major_index_too_large(self):
# Test when the index is too large for the total number of elements
# The indices would look like:
# 0 2 3 4
# 1 / / /
with self.assertRaises(ValueError):
column_major_to_row_major(
index=10,
n=5,
num_rows=2,
num_cols=4,
)
def test_column_major_index_index_overhanging(self):
# This is the layout for displaying numbers from 0-9 with column
# major setup:
# 0 3 6 8
# 1 4 7 9
# 2 5 / /
# The index should be populated (row first) in this order:
# 0, 3, 6, 8, 1, 4, 7, 9, 2, 5
actual = column_major_to_row_major(
index=9,
n=10,
num_rows=3,
num_cols=4,
)
self.assertEqual(actual, 7)
def test_column_major_index_in_grid_first_row(self):
# Test when the index is small enough to be within the upper, filled
# grid.
# This is the layout for displaying numbers from 0-9 with column
# major setup:
# 0 3 6 8
# 1 4 7 9
# 2 5 / /
# The index should be populated (row first) in this order:
# 0, 3, 6, 8, 1, 4, 7, 9, 2, 5
actual = column_major_to_row_major(
index=6,
n=10,
num_rows=3,
num_cols=4,
)
self.assertEqual(actual, 2)
def test_column_major_index_in_grid_last_row(self):
# Test when the index is small enough to be within the upper, filled
# grid.
# This is the layout for displaying numbers from 0-9 with column
# major setup:
# 0 3 6 8
# 1 4 7 9
# 2 5 / /
# The index should be populated (row first) in this order:
# 0, 3, 6, 8, 1, 4, 7, 9, 2, 5
actual = column_major_to_row_major(
index=4,
n=10,
num_rows=3,
num_cols=4,
)
self.assertEqual(actual, 5)
def test_column_major_index_last_row(self):
# Test when the index is in the last row
# This is the layout for displaying numbers from 0-9 with column
# major setup:
# 0 3 6 8
# 1 4 7 9
# 2 5 / /
# The index should be populated (row first) in this order:
# 0, 3, 6, 8, 1, 4, 7, 9, 2, 5
actual = column_major_to_row_major(
index=2,
n=10,
num_rows=3,
num_cols=4,
)
self.assertEqual(actual, 8)
def test_column_major_index_long_overhang(self):
# This is the layout for displaying numbers from 0-9 with column
# major setup:
# 0 2 3 4
# 1 / / /
# The index should be populated (row first) in this order:
# 0, 2, 3, 4, 1
actual = column_major_to_row_major(
index=4,
n=5,
num_rows=2,
num_cols=4,
)
self.assertEqual(actual, 3)
def test_column_major_index_full_grid(self):
# This is the layout for displaying numbers from 0-9 with column
# major setup:
# 0 3 6 9 12
# 1 4 7 10 13
# 2 5 8 11 14
# The index should be populated (row first) in this order:
# 0, 3, 6, 9, 12, 1, 4, 7, 10, 13, 2, 5, 8, 11, 14
actual = column_major_to_row_major(
index=11,
n=15,
num_rows=3,
num_cols=5,
)
self.assertEqual(actual, 13)
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