ansible/test/units/utils/test_display.py
Matt Martz 1fedb95e4b
Use libc wcwidth to calculate print width in display (#66214)
* Use libc wcwidth to calculate print width in display. Fixes #63105

* Remove errantly added blank lines

* Fixes

* Move setlocale, adjust tests to work around py2 oddity with characters following null

* Don't change cli stub

* emojis

* Remove to_text call

* Special accounting for deletions

* Add initialization function, expand tests, ensure fallback to len

* get_text_width requires text, ensure banner deals with it

* Handle setlocale errors

* Move variable decrement

* Remove unused import
2020-06-22 16:57:01 -05:00

65 lines
2.1 KiB
Python

# -*- coding: utf-8 -*-
# (c) 2020 Matt Martz <matt@sivel.net>
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import absolute_import, division, print_function
__metaclass__ = type
from units.compat.mock import MagicMock
import pytest
from ansible.module_utils.six import PY3
from ansible.utils.display import Display, get_text_width, initialize_locale
def test_get_text_width():
initialize_locale()
assert get_text_width(u'コンニチハ') == 10
assert get_text_width(u'abコcd') == 6
assert get_text_width(u'café') == 4
assert get_text_width(u'four') == 4
assert get_text_width(u'\u001B') == 0
assert get_text_width(u'ab\u0000') == 2
assert get_text_width(u'abコ\u0000') == 4
assert get_text_width(u'🚀🐮') == 4
assert get_text_width(u'\x08') == 0
assert get_text_width(u'\x08\x08') == 0
assert get_text_width(u'ab\x08cd') == 3
assert get_text_width(u'ab\x1bcd') == 3
assert get_text_width(u'ab\x7fcd') == 3
assert get_text_width(u'ab\x94cd') == 3
pytest.raises(TypeError, get_text_width, 1)
pytest.raises(TypeError, get_text_width, b'four')
@pytest.mark.skipif(PY3, reason='Fallback only happens reliably on py2')
def test_get_text_width_no_locale():
pytest.raises(EnvironmentError, get_text_width, u'🚀🐮')
def test_Display_banner_get_text_width(monkeypatch):
initialize_locale()
display = Display()
display_mock = MagicMock()
monkeypatch.setattr(display, 'display', display_mock)
display.banner(u'🚀🐮', color=False, cows=False)
args, kwargs = display_mock.call_args
msg = args[0]
stars = u' %s' % (75 * u'*')
assert msg.endswith(stars)
@pytest.mark.skipif(PY3, reason='Fallback only happens reliably on py2')
def test_Display_banner_get_text_width_fallback(monkeypatch):
display = Display()
display_mock = MagicMock()
monkeypatch.setattr(display, 'display', display_mock)
display.banner(u'🚀🐮', color=False, cows=False)
args, kwargs = display_mock.call_args
msg = args[0]
stars = u' %s' % (77 * u'*')
assert msg.endswith(stars)