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# Copyright 2010 Lars Wirzenius
#
# 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, either version 3 of the License, or
# (at your option) any later version.
#
# 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/>.
import unittest
import ttystatus
class ByteSpeedTests(unittest.TestCase):
def setUp(self):
self.w = ttystatus.ByteSpeed('foo')
def test_is_not_static_width(self):
self.assertFalse(self.w.static_width)
def test_formats_zero_speed_without_update(self):
self.assertEqual(self.w.render(0), '0 B/s')
def test_formats_zero_bytes_correctly(self):
self.w.now = lambda: 1
self.w.update({'foo': 0})
self.w.now = lambda: 2
self.w.update({'foo': 0})
self.assertEqual(self.w.render(0), '0 B/s')
def test_formats_one_byte_per_second_correctly(self):
self.w.now = lambda: 1
self.w.update({'foo': 0})
self.w.now = lambda: 2
self.w.update({'foo': 1})
self.assertEqual(self.w.render(0), '1 B/s')
def test_formats_ten_bytes_per_second_correctly(self):
self.w.now = lambda: 1
self.w.update({'foo': 0})
self.w.now = lambda: 11
self.w.update({'foo': 100})
self.assertEqual(self.w.render(0), '10 B/s')
def test_formats_ten_tibs_per_second_correctly(self):
self.w.now = lambda: 1
self.w.update({'foo': 0})
self.w.now = lambda: 2
self.w.update({'foo': 10 * 1024 ** 4})
self.assertEqual(self.w.render(0), '10.00 TiB/s')
def test_keeps_only_two_data_points_with_infinite_duration(self):
for when in range(100):
self.w.now = lambda: when
self.w.update({'foo': 0})
self.assertEqual(self.w.render(0), '0 B/s')
def test_shows_current_speed_when_requested(self):
items = [
(0, 0),
(1, 1024),
(10, 1024),
(11, 1024),
]
w = ttystatus.ByteSpeed('foo', duration=5)
for when, num_bytes in items:
w.now = lambda: when
w.update({'foo': num_bytes})
self.assertEqual(w.render(0), '0 B/s')
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