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from io import StringIO
from unittest import mock, TestCase
from scrapy.utils.display import pformat, pprint
class TestDisplay(TestCase):
object = {'a': 1}
colorized_string = (
"{\x1b[33m'\x1b[39;49;00m\x1b[33ma\x1b[39;49;00m\x1b[33m'"
"\x1b[39;49;00m: \x1b[34m1\x1b[39;49;00m}\n"
)
plain_string = "{'a': 1}"
@mock.patch('sys.platform', 'linux')
@mock.patch("sys.stdout.isatty")
def test_pformat(self, isatty):
isatty.return_value = True
self.assertEqual(pformat(self.object), self.colorized_string)
@mock.patch("sys.stdout.isatty")
def test_pformat_dont_colorize(self, isatty):
isatty.return_value = True
self.assertEqual(pformat(self.object, colorize=False), self.plain_string)
def test_pformat_not_tty(self):
self.assertEqual(pformat(self.object), self.plain_string)
@mock.patch('sys.platform', 'win32')
@mock.patch('platform.version')
@mock.patch("sys.stdout.isatty")
def test_pformat_old_windows(self, isatty, version):
isatty.return_value = True
version.return_value = '10.0.14392'
self.assertEqual(pformat(self.object), self.colorized_string)
@mock.patch('sys.platform', 'win32')
@mock.patch('scrapy.utils.display._enable_windows_terminal_processing')
@mock.patch('platform.version')
@mock.patch("sys.stdout.isatty")
def test_pformat_windows_no_terminal_processing(self, isatty, version, terminal_processing):
isatty.return_value = True
version.return_value = '10.0.14393'
terminal_processing.return_value = False
self.assertEqual(pformat(self.object), self.plain_string)
@mock.patch('sys.platform', 'win32')
@mock.patch('scrapy.utils.display._enable_windows_terminal_processing')
@mock.patch('platform.version')
@mock.patch("sys.stdout.isatty")
def test_pformat_windows(self, isatty, version, terminal_processing):
isatty.return_value = True
version.return_value = '10.0.14393'
terminal_processing.return_value = True
self.assertEqual(pformat(self.object), self.colorized_string)
@mock.patch('sys.platform', 'linux')
@mock.patch("sys.stdout.isatty")
def test_pformat_no_pygments(self, isatty):
isatty.return_value = True
import builtins
real_import = builtins.__import__
def mock_import(name, globals, locals, fromlist, level):
if 'pygments' in name:
raise ImportError
return real_import(name, globals, locals, fromlist, level)
builtins.__import__ = mock_import
self.assertEqual(pformat(self.object), self.plain_string)
builtins.__import__ = real_import
def test_pprint(self):
with mock.patch('sys.stdout', new=StringIO()) as mock_out:
pprint(self.object)
self.assertEqual(mock_out.getvalue(), "{'a': 1}\n")
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