Files
cmdasana/urwid/tests/test_vterm.py
2015-07-20 19:30:57 -07:00

335 lines
11 KiB
Python

# Urwid terminal emulation widget unit tests
# Copyright (C) 2010 aszlig
# Copyright (C) 2011 Ian Ward
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# Urwid web site: http://excess.org/urwid/
import os
import sys
import unittest
from itertools import dropwhile
from urwid import vterm
from urwid import signals
from urwid.compat import B
class DummyCommand(object):
QUITSTRING = B('|||quit|||')
def __init__(self):
self.reader, self.writer = os.pipe()
def __call__(self):
# reset
stdout = getattr(sys.stdout, 'buffer', sys.stdout)
stdout.write(B('\x1bc'))
while True:
data = os.read(self.reader, 1024)
if self.QUITSTRING == data:
break
stdout.write(data)
stdout.flush()
def write(self, data):
os.write(self.writer, data)
def quit(self):
self.write(self.QUITSTRING)
class TermTest(unittest.TestCase):
def setUp(self):
self.command = DummyCommand()
self.term = vterm.Terminal(self.command)
self.resize(80, 24)
def tearDown(self):
self.command.quit()
def connect_signal(self, signal):
self._sig_response = None
def _set_signal_response(widget, *args, **kwargs):
self._sig_response = (args, kwargs)
self._set_signal_response = _set_signal_response
signals.connect_signal(self.term, signal, self._set_signal_response)
def expect_signal(self, *args, **kwargs):
self.assertEqual(self._sig_response, (args, kwargs))
def disconnect_signal(self, signal):
signals.disconnect_signal(self.term, signal, self._set_signal_response)
def caught_beep(self, obj):
self.beeped = True
def resize(self, width, height, soft=False):
self.termsize = (width, height)
if not soft:
self.term.render(self.termsize, focus=False)
def write(self, data):
data = B(data)
self.command.write(data.replace(B('\e'), B('\x1b')))
def flush(self):
self.write(chr(0x7f))
def read(self, raw=False):
self.term.wait_and_feed()
rendered = self.term.render(self.termsize, focus=False)
if raw:
is_empty = lambda c: c == (None, None, B(' '))
content = list(rendered.content())
lines = [list(dropwhile(is_empty, reversed(line)))
for line in content]
return [list(reversed(line)) for line in lines if len(line)]
else:
content = rendered.text
lines = [line.rstrip() for line in content]
return B('\n').join(lines).rstrip()
def expect(self, what, desc=None, raw=False):
if not isinstance(what, list):
what = B(what)
got = self.read(raw=raw)
if desc is None:
desc = ''
else:
desc += '\n'
desc += 'Expected:\n%r\nGot:\n%r' % (what, got)
self.assertEqual(got, what, desc)
def test_simplestring(self):
self.write('hello world')
self.expect('hello world')
def test_linefeed(self):
self.write('hello\x0aworld')
self.expect('hello\nworld')
def test_linefeed2(self):
self.write('aa\b\b\eDbb')
self.expect('aa\nbb')
def test_carriage_return(self):
self.write('hello\x0dworld')
self.expect('world')
def test_insertlines(self):
self.write('\e[0;0flast\e[0;0f\e[10L\e[0;0ffirst\nsecond\n\e[11D')
self.expect('first\nsecond\n\n\n\n\n\n\n\n\nlast')
def test_deletelines(self):
self.write('1\n2\n3\n4\e[2;1f\e[2M')
self.expect('1\n4')
def test_movement(self):
self.write('\e[10;20H11\e[10;0f\e[20C\e[K')
self.expect('\n' * 9 + ' ' * 19 + '1')
self.write('\e[A\e[B\e[C\e[D\b\e[K')
self.expect('')
self.write('\e[50A2')
self.expect(' ' * 19 + '2')
self.write('\b\e[K\e[50B3')
self.expect('\n' * 23 + ' ' * 19 + '3')
self.write('\b\e[K' + '\eM' * 30 + '\e[100C4')
self.expect(' ' * 79 + '4')
self.write('\e[100D\e[K5')
self.expect('5')
def edgewall(self):
edgewall = '1-\e[1;%(x)df-2\e[%(y)d;1f3-\e[%(y)d;%(x)df-4\x0d'
self.write(edgewall % {'x': self.termsize[0] - 1,
'y': self.termsize[1] - 1})
def test_horizontal_resize(self):
self.resize(80, 24)
self.edgewall()
self.expect('1-' + ' ' * 76 + '-2' + '\n' * 22
+ '3-' + ' ' * 76 + '-4')
self.resize(78, 24, soft=True)
self.flush()
self.expect('1-' + '\n' * 22 + '3-')
self.resize(80, 24, soft=True)
self.flush()
self.expect('1-' + '\n' * 22 + '3-')
def test_vertical_resize(self):
self.resize(80, 24)
self.edgewall()
self.expect('1-' + ' ' * 76 + '-2' + '\n' * 22
+ '3-' + ' ' * 76 + '-4')
for y in xrange(23, 1, -1):
self.resize(80, y, soft=True)
self.write('\e[%df\e[J3-\e[%d;%df-4' % (y, y, 79))
desc = "try to rescale to 80x%d." % y
self.expect('\n' * (y - 2) + '3-' + ' ' * 76 + '-4', desc)
self.resize(80, 24, soft=True)
self.flush()
self.expect('1-' + ' ' * 76 + '-2' + '\n' * 22
+ '3-' + ' ' * 76 + '-4')
def write_movements(self, arg):
fmt = 'XXX\n\e[faaa\e[Bccc\e[Addd\e[Bfff\e[Cbbb\e[A\e[Deee'
self.write(fmt.replace('\e[', '\e['+arg))
def test_defargs(self):
self.write_movements('')
self.expect('aaa ddd eee\n ccc fff bbb')
def test_nullargs(self):
self.write_movements('0')
self.expect('aaa ddd eee\n ccc fff bbb')
def test_erase_line(self):
self.write('1234567890\e[5D\e[K\n1234567890\e[5D\e[1K\naaaaaaaaaaaaaaa\e[2Ka')
self.expect('12345\n 7890\n a')
def test_erase_display(self):
self.write('1234567890\e[5D\e[Ja')
self.expect('12345a')
self.write('98765\e[8D\e[1Jx')
self.expect(' x5a98765')
def test_scrolling_region_simple(self):
self.write('\e[10;20r\e[10f1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n11\n12\e[faa')
self.expect('aa' + '\n' * 9 + '2\n3\n4\n5\n6\n7\n8\n9\n10\n11\n12')
def test_scrolling_region_reverse(self):
self.write('\e[2J\e[1;2r\e[5Baaa\r\eM\eM\eMbbb\nXXX')
self.expect('\n\nbbb\nXXX\n\naaa')
def test_scrolling_region_move(self):
self.write('\e[10;20r\e[2J\e[10Bfoo\rbar\rblah\rmooh\r\e[10Aone\r\eM\eMtwo\r\eM\eMthree\r\eM\eMa')
self.expect('ahree\n\n\n\n\n\n\n\n\n\nmooh')
def test_scrolling_twice(self):
self.write('\e[?6h\e[10;20r\e[2;5rtest')
self.expect('\ntest')
def test_cursor_scrolling_region(self):
self.write('\e[?6h\e[10;20r\e[10f1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n11\n12\e[faa')
self.expect('\n' * 9 + 'aa\n3\n4\n5\n6\n7\n8\n9\n10\n11\n12')
def test_relative_region_jump(self):
self.write('\e[21H---\e[10;20r\e[?6h\e[18Htest')
self.expect('\n' * 19 + 'test\n---')
def test_set_multiple_modes(self):
self.write('\e[?6;5htest')
self.expect('test')
self.assertTrue(self.term.term_modes.constrain_scrolling)
self.assertTrue(self.term.term_modes.reverse_video)
self.write('\e[?6;5l')
self.expect('test')
self.assertFalse(self.term.term_modes.constrain_scrolling)
self.assertFalse(self.term.term_modes.reverse_video)
def test_wrap_simple(self):
self.write('\e[?7h\e[1;%dHtt' % self.term.width)
self.expect(' ' * (self.term.width - 1) + 't\nt')
def test_wrap_backspace_tab(self):
self.write('\e[?7h\e[1;%dHt\b\b\t\ta' % self.term.width)
self.expect(' ' * (self.term.width - 1) + 'a')
def test_cursor_visibility(self):
self.write('\e[?25linvisible')
self.expect('invisible')
self.assertEqual(self.term.term.cursor, None)
self.write('\rvisible\e[?25h\e[K')
self.expect('visible')
self.assertNotEqual(self.term.term.cursor, None)
def test_get_utf8_len(self):
length = self.term.term.get_utf8_len(int("11110000", 2))
self.assertEqual(length, 3)
length = self.term.term.get_utf8_len(int("11000000", 2))
self.assertEqual(length, 1)
length = self.term.term.get_utf8_len(int("11111101", 2))
self.assertEqual(length, 5)
def test_encoding_unicode(self):
vterm.util._target_encoding = 'utf-8'
self.write('\e%G\xe2\x80\x94')
self.expect('\xe2\x80\x94')
def test_encoding_unicode_ascii(self):
vterm.util._target_encoding = 'ascii'
self.write('\e%G\xe2\x80\x94')
self.expect('?')
def test_encoding_wrong_unicode(self):
vterm.util._target_encoding = 'utf-8'
self.write('\e%G\xc0\x99')
self.expect('')
def test_encoding_vt100_graphics(self):
vterm.util._target_encoding = 'ascii'
self.write('\e)0\e(0\x0fg\x0eg\e)Bn\e)0g\e)B\e(B\x0fn')
self.expect([[
(None, '0', B('g')), (None, '0', B('g')),
(None, None, B('n')), (None, '0', B('g')),
(None, None, B('n'))
]], raw=True)
def test_ibmpc_mapping(self):
vterm.util._target_encoding = 'ascii'
self.write('\e[11m\x18\e[10m\x18')
self.expect([[(None, 'U', B('\x18'))]], raw=True)
self.write('\ec\e)U\x0e\x18\x0f\e[3h\x18\e[3l\x18')
self.expect([[(None, None, B('\x18'))]], raw=True)
self.write('\ec\e[11m\xdb\x18\e[10m\xdb')
self.expect([[
(None, 'U', B('\xdb')), (None, 'U', B('\x18')),
(None, None, B('\xdb'))
]], raw=True)
def test_set_title(self):
self._the_title = None
def _change_title(widget, title):
self._the_title = title
self.connect_signal('title')
self.write('\e]666parsed right?\e\\te\e]0;test title\007st1')
self.expect('test1')
self.expect_signal(B('test title'))
self.write('\e]3;stupid title\e\\\e[0G\e[2Ktest2')
self.expect('test2')
self.expect_signal(B('stupid title'))
self.disconnect_signal('title')
def test_set_leds(self):
self.connect_signal('leds')
self.write('\e[0qtest1')
self.expect('test1')
self.expect_signal('clear')
self.write('\e[3q\e[H\e[Ktest2')
self.expect('test2')
self.expect_signal('caps_lock')
self.disconnect_signal('leds')