Files
pre-commit/tests/color_test.py
2019-07-22 20:07:16 +02:00

71 lines
1.9 KiB
Python

from __future__ import unicode_literals
import os
import sys
import mock
import pytest
from pre_commit.color import format_color
from pre_commit.color import GREEN
from pre_commit.color import InvalidColorSetting
from pre_commit.color import use_color
@pytest.mark.parametrize(
('in_text', 'in_color', 'in_use_color', 'expected'), (
('foo', GREEN, True, '{}foo\033[0m'.format(GREEN)),
('foo', GREEN, False, 'foo'),
),
)
def test_format_color(in_text, in_color, in_use_color, expected):
ret = format_color(in_text, in_color, in_use_color)
assert ret == expected
def test_use_color_never():
assert use_color('never') is False
def test_use_color_always():
assert use_color('always') is True
def test_use_color_no_tty():
with mock.patch.object(sys.stdout, 'isatty', return_value=False):
assert use_color('auto') is False
def test_use_color_tty_with_color_support():
with mock.patch.object(sys.stdout, 'isatty', return_value=True):
with mock.patch('pre_commit.color.terminal_supports_color', True):
assert use_color('auto') is True
def test_use_color_tty_without_color_support():
with mock.patch.object(sys.stdout, 'isatty', return_value=True):
with mock.patch('pre_commit.color.terminal_supports_color', False):
assert use_color('auto') is False
def test_use_color_raises_if_given_shenanigans():
with pytest.raises(InvalidColorSetting):
use_color('herpaderp')
def test_no_color_env_unset():
with mock.patch.dict(os.environ):
if 'NO_COLOR' in os.environ:
del os.environ['NO_COLOR']
assert use_color('always') is True
def test_no_color_env_empty():
with mock.patch.dict(os.environ, NO_COLOR=''):
assert use_color('always') is True
def test_no_color_env_non_empty():
with mock.patch.dict(os.environ, NO_COLOR=' '):
assert use_color('always') is False