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# Copyright 2010, 2011 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 io as StringIO
import unittest
import ttystatus
if 'unicode' in __builtins__:
make_text = __builtins__['unicode']
else:
make_text = str
class DummyMessager(object):
def __init__(self):
self.written = StringIO.StringIO()
self.enabled = True
self.fake_width = 80
def get_max_line_length(self):
return self.fake_width
def clear(self):
pass
def time_to_write(self):
return True
def write(self, string, force=False):
self.written.write(make_text(string))
def notify(self, string, f, force=False):
pass
def finish(self):
pass
def enable(self):
self.enabled = True
def disable(self):
self.enabled = False
class TerminalStatusTests(unittest.TestCase):
def setUp(self):
self.ts = ttystatus.TerminalStatus(messager=DummyMessager())
def test_has_no_widgets(self):
self.assertEqual(self.ts.widgets, [])
def test_adds_widget(self):
w = ttystatus.Literal('foo')
self.ts.add(w)
self.assertEqual(self.ts.widgets, [w])
def test_adds_widgets_from_format_string(self):
self.ts.format('hello, %String(name)')
self.assertEqual(len(self.ts.widgets), 2)
self.assertEqual(type(self.ts.widgets[0]), ttystatus.Literal)
self.assertEqual(type(self.ts.widgets[1]), ttystatus.String)
def test_removes_all_widgets(self):
self.ts.add(ttystatus.Literal('foo'))
self.ts.clear()
self.assertEqual(self.ts.widgets, [])
def test_returns_empty_string_for_unknown_value(self):
self.assertEqual(self.ts['foo'], '')
def test_sets_value(self):
self.ts['foo'] = 'bar'
self.assertEqual(self.ts['foo'], 'bar')
def test_gets_value(self):
self.ts['foo'] = 'bar'
self.assertEqual(self.ts.get('foo'), 'bar')
def test_gets_default_value_for_nonexistent_key(self):
self.assertEqual(self.ts.get('foo', 'bar'), 'bar')
def test_gets_None_for_nonexistent_key_without_default_value(self):
self.assertEqual(self.ts.get('foo'), None)
def test_updates_widgets_when_value_is_set(self):
w = ttystatus.String('foo')
self.ts.add(w)
self.assertEqual(w.render(0), '')
self.ts['foo'] = 'bar'
self.assertEqual(w.render(0), 'bar')
def test_increases_value(self):
self.ts['foo'] = 10
self.assertEqual(self.ts['foo'], 10)
self.ts.increase('foo', 10)
self.assertEqual(self.ts['foo'], 20)
def test_has_notify_method(self):
self.assertEqual(self.ts.notify('foo'), None)
def test_has_error_method(self):
self.assertEqual(self.ts.error('foo'), None)
def test_has_finish_method(self):
self.assertEqual(self.ts.finish(), None)
def test_flushes(self):
self.ts._m.time_to_write = lambda: False
self.ts.format('%String(foo)')
self.ts['foo'] = 'foo'
self.assertEqual(self.ts._m.written.getvalue(), '')
self.ts.flush()
self.assertEqual(self.ts._m.written.getvalue(), 'foo')
def test_disable_calls_messager_disable(self):
self.ts.disable()
self.assertFalse(self.ts._m.enabled)
def test_enable_calls_messager_enable(self):
self.ts.disable()
self.ts.enable()
self.assertTrue(self.ts._m.enabled)
def test_counts_correctly_even_without_rendering(self):
w = ttystatus.Counter('value')
n = 42
self.ts.add(w)
for i in range(n):
self.ts['value'] = i
self.assertEqual(w.render(0), str(n))
def test_renders_everything_when_there_is_space(self):
w1 = ttystatus.Literal('foo')
w2 = ttystatus.ProgressBar('done', 'total')
self.ts.add(w1)
self.ts.add(w2)
text = self.ts._render()
self.assertEqual(len(text), self.ts._m.get_max_line_length())
def test_renders_from_beginning_if_there_is_not_enough_space(self):
w1 = ttystatus.Literal('foo')
w2 = ttystatus.Literal('bar')
self.ts.add(w1)
self.ts.add(w2)
self.ts._m.fake_width = 4
text = self.ts._render()
self.assertEqual(text, 'foob')
def test_renders_variable_size_width_according_to_space_keep_static(self):
w1 = ttystatus.Literal('foo')
w2 = ttystatus.ProgressBar('done', 'total')
w3 = ttystatus.Literal('bar')
self.ts.add(w1)
self.ts.add(w2)
self.ts.add(w3)
self.ts._m.fake_width = 9
text = self.ts._render()
self.assertEqual(text, 'foo---bar')
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