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"""
Tests for the udiskie.cache module.
"""
import unittest
import time
from udiskie.cache import PasswordCache
class TestDev:
def __init__(self, id_uuid):
self.id_uuid = id_uuid
class TestPasswordCache(unittest.TestCase):
"""
Tests for the udiskie.cache.PasswordCache class.
"""
# NOTE: The device names are different in each test so that they do not
# interfere accidentally.
def test_timeout(self):
"""The cached password expires after the specified timeout."""
device = TestDev('ALPHA')
password = '{<}hëllo ωορλδ!{>}'
cache = PasswordCache(1)
cache[device] = password
self.assertEqual(cache[device], password.encode('utf-8'))
time.sleep(1.5)
with self.assertRaises(KeyError):
cache[device]
def test_touch(self):
"""Key access refreshes the timeout."""
device = TestDev('BETA')
password = '{<}hëllo ωορλδ!{>}'
cache = PasswordCache(3)
cache[device] = password
time.sleep(2)
self.assertEqual(cache[device], password.encode('utf-8'))
time.sleep(2)
self.assertEqual(cache[device], password.encode('utf-8'))
time.sleep(4)
with self.assertRaises(KeyError):
cache[device]
def test_revoke(self):
"""A key can be deleted manually."""
device = TestDev('GAMMA')
password = '{<}hëllo ωορλδ!{>}'
cache = PasswordCache(0)
cache[device] = password
self.assertEqual(cache[device], password.encode('utf-8'))
del cache[device]
with self.assertRaises(KeyError):
cache[device]
def test_update(self):
device = TestDev('DELTA')
password = '{<}hëllo ωορλδ!{>}'
cache = PasswordCache(0)
cache[device] = password
self.assertEqual(cache[device], password.encode('utf-8'))
cache[device] = password * 2
self.assertEqual(cache[device], password.encode('utf-8')*2)
del cache[device]
with self.assertRaises(KeyError):
cache[device]
if __name__ == '__main__':
unittest.main()
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