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# Copyright 2019 Canonical, Ltd.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, version 3.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from collections import defaultdict
from unittest import TestCase
from urwid import Text
from subiquitycore.ui.table import (
_compute_widths_for_size,
ColSpec,
TableRow,
)
class TestComputeWidthsForSize(TestCase):
def rowsForContentSizes(self, sizes):
rows = []
for row in sizes:
cells = []
for size in row:
if not isinstance(size, tuple):
span = 1
else:
span, size = size
cells.append((span, Text("x"*size)))
rows.append(TableRow(cells))
return rows
def test_simple(self):
trows = self.rowsForContentSizes([[10]])
widths, total, has_unpacked = _compute_widths_for_size(
100, trows, defaultdict(ColSpec, {}), 0)
self.assertEqual(
({0: 10}, 10, False),
(widths, total, has_unpacked),
)
def test_two_cols(self):
trows = self.rowsForContentSizes([[10, 10]])
widths, total, has_unpacked = _compute_widths_for_size(
100, trows, defaultdict(ColSpec, {}), 0)
self.assertEqual(
({0: 10, 1: 0, 2: 10}, 20, False),
(widths, total, has_unpacked),
)
def test_two_cols_confined(self):
# When there is not enough space for the table, a column with
# can_shrink=True is not assigned a width so urwid can give
# that column as much space as it can.
trows = self.rowsForContentSizes([[10, 10]])
colspecs = defaultdict(
ColSpec, {0: ColSpec(can_shrink=True)})
widths, total, has_unpacked = _compute_widths_for_size(
15, trows, colspecs, 0)
self.assertEqual(
({1: 0, 2: 10}, 15, False),
(widths, total, has_unpacked),
)
def test_two_cols_spacing(self):
trows = self.rowsForContentSizes([[10, 10]])
widths, total, has_unpacked = _compute_widths_for_size(
100, trows, defaultdict(ColSpec, {}), 2)
self.assertEqual(
({0: 10, 1: 2, 2: 10}, 22, False),
(widths, total, has_unpacked),
)
def test_three_cols_spacing_rpad(self):
# rpad overrides the spacing to the right of a column
trows = self.rowsForContentSizes([[10, 10, 10]])
colspecs = defaultdict(
ColSpec, {0: ColSpec(rpad=40)})
widths, total, has_unpacked = _compute_widths_for_size(
100, trows, colspecs, 2)
self.assertEqual(
({0: 10, 1: 40, 2: 10, 3: 2, 4: 10}, 72, False),
(widths, total, has_unpacked),
)
def test_no_inherent_width(self):
# If a column has no cells that span only that column, it gets
# allocated space in preference to other columns. Content
# like this:
#
# [[(2, "longer content567890"), "shorter890"],
# ["shorter890", (2, "longer content5")]]
#
# should be rendered like this:
#
# +----------------------+------------+
# | longer content567890 | shorter890 |
# +------------+---------+------------+
# | shorter890 | longer content5 |
# +------------+----------------------+
trows = self.rowsForContentSizes([[(2, 20), 10],
[10, (2, 15)]])
widths, total, has_unpacked = _compute_widths_for_size(
100, trows, defaultdict(ColSpec, {}), 0)
self.assertEqual(
({0: 10, 1: 0, 2: 10, 3: 0, 4: 10}, 30, False),
(widths, total, has_unpacked),
)
def test_no_inherent_width_confined(self):
# [[(2, "longer content567890"), "shorter890"],
# ["shorter890", (2, "longer content5")]]
#
# should be rendered like this if the view is not quite wide
# enough (and column 1 has can_shrink=True):
#
# +--------------------+------------+
# | longer content5678 | shorter890 |
# | 90 | |
# +------------+-------+------------+
# | shorter890 | longer content5 |
# +------------+--------------------+
#
# This is represented by column 1 not being assigned a width
# at all, so urwid gives it as much space as it can.
trows = self.rowsForContentSizes([[(2, 20), 10],
[10, (2, 15)]])
colspecs = defaultdict(
ColSpec, {1: ColSpec(can_shrink=True)})
widths, total, has_unpacked = _compute_widths_for_size(
28, trows, colspecs, 0)
self.assertEqual(
({0: 10, 1: 0, 3: 0, 4: 10}, 28, False),
(widths, total, has_unpacked),
)