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import sys
from subprocess import Popen, PIPE
import unittest
from scrapy.utils.test import get_testenv
class CmdlineTest(unittest.TestCase):
def setUp(self):
self.env = get_testenv()
self.env['SCRAPY_SETTINGS_MODULE'] = 'scrapy.tests.test_cmdline.settings'
def _execute(self, *new_args, **kwargs):
args = (sys.executable, '-m', 'scrapy.cmdline') + new_args
proc = Popen(args, stdout=PIPE, stderr=PIPE, env=self.env, **kwargs)
comm = proc.communicate()
return comm[0].strip()
def test_default_settings(self):
self.assertEqual(self._execute('settings', '--get', 'TEST1'), \
'default')
def test_override_settings_using_set_arg(self):
self.assertEqual(self._execute('settings', '--get', 'TEST1', '-s', 'TEST1=override'), \
'override')
def test_override_settings_using_envvar(self):
self.env['SCRAPY_TEST1'] = 'override'
self.assertEqual(self._execute('settings', '--get', 'TEST1'), \
'override')
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