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# coding=utf-8
# flake8: noqa E302
"""
Unit testing for cmd2/ansi.py module
"""
import pytest
from colorama import Fore, Back, Style
import cmd2.ansi as ansi
HELLO_WORLD = 'Hello, world!'
def test_strip_ansi():
base_str = HELLO_WORLD
ansi_str = Fore.GREEN + base_str + Fore.RESET
assert base_str != ansi_str
assert base_str == ansi.strip_ansi(ansi_str)
def test_ansi_safe_wcswidth():
base_str = HELLO_WORLD
ansi_str = Fore.GREEN + base_str + Fore.RESET
assert ansi.ansi_safe_wcswidth(ansi_str) != len(ansi_str)
def test_style_none():
base_str = HELLO_WORLD
ansi_str = base_str
assert ansi.style(base_str) == ansi_str
def test_style_fg():
base_str = HELLO_WORLD
ansi_str = Fore.BLUE + base_str + Fore.RESET
assert ansi.style(base_str, fg='blue') == ansi_str
def test_style_bg():
base_str = HELLO_WORLD
ansi_str = Back.GREEN + base_str + Back.RESET
assert ansi.style(base_str, bg='green') == ansi_str
def test_style_bold():
base_str = HELLO_WORLD
ansi_str = Style.BRIGHT + base_str + Style.NORMAL
assert ansi.style(base_str, bold=True) == ansi_str
def test_style_underline():
base_str = HELLO_WORLD
ansi_str = ansi.UNDERLINE_ENABLE + base_str + ansi.UNDERLINE_DISABLE
assert ansi.style(base_str, underline=True) == ansi_str
def test_style_multi():
base_str = HELLO_WORLD
ansi_str = Fore.BLUE + Back.GREEN + Style.BRIGHT + ansi.UNDERLINE_ENABLE + \
base_str + Fore.RESET + Back.RESET + Style.NORMAL + ansi.UNDERLINE_DISABLE
assert ansi.style(base_str, fg='blue', bg='green', bold=True, underline=True) == ansi_str
def test_style_color_not_exist():
base_str = HELLO_WORLD
with pytest.raises(ValueError):
ansi.style(base_str, fg='fake', bg='green')
with pytest.raises(ValueError):
ansi.style(base_str, fg='blue', bg='fake')
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