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import pytest
from twisted.conch.telnet import ITelnetProtocol
from twisted.cred import credentials
from twisted.internet.defer import inlineCallbacks
from scrapy.extensions.telnet import TelnetConsole
from scrapy.utils.test import get_crawler
class TestTelnetExtension:
def _get_console_and_portal(self, settings=None):
crawler = get_crawler(settings_dict=settings)
console = TelnetConsole(crawler)
# This function has some side effects we don't need for this test
console._get_telnet_vars = dict
console.start_listening()
protocol = console.protocol()
portal = protocol.protocolArgs[0]
return console, portal
@inlineCallbacks
def test_bad_credentials(self):
console, portal = self._get_console_and_portal()
creds = credentials.UsernamePassword(b"username", b"password")
d = portal.login(creds, None, ITelnetProtocol)
with pytest.raises(ValueError, match="Invalid credentials"):
yield d
console.stop_listening()
@inlineCallbacks
def test_good_credentials(self):
console, portal = self._get_console_and_portal()
creds = credentials.UsernamePassword(
console.username.encode("utf8"), console.password.encode("utf8")
)
d = portal.login(creds, None, ITelnetProtocol)
yield d
console.stop_listening()
@inlineCallbacks
def test_custom_credentials(self):
settings = {
"TELNETCONSOLE_USERNAME": "user",
"TELNETCONSOLE_PASSWORD": "pass",
}
console, portal = self._get_console_and_portal(settings=settings)
creds = credentials.UsernamePassword(b"user", b"pass")
d = portal.login(creds, None, ITelnetProtocol)
yield d
console.stop_listening()
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