+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+import datetime
+import itertools
+import random
+import unittest
+
+from arvados.keep import KeepLocator
+
+class ArvadosPutResumeCacheTest(unittest.TestCase):
+ DEFAULT_TEST_COUNT = 10
+
+ def numstrs(fmtstr, base, exponent):
+ def genstrs(self, count=None):
+ return (fmtstr.format(random.randint(0, base ** exponent))
+ for c in xrange(count or self.DEFAULT_TEST_COUNT))
+ return genstrs
+
+ checksums = numstrs('{:032x}', 16, 32)
+ sizes = numstrs('{:d}', 2, 26)
+ signatures = numstrs('{:040x}', 16, 40)
+ timestamps = numstrs('{:08x}', 16, 8)
+
+ def perm_hints(self, count=DEFAULT_TEST_COUNT):
+ for sig, ts in itertools.izip(self.signatures(count),
+ self.timestamps(count)):
+ yield 'A{}@{}'.format(sig, ts)
+
+ def test_good_locators_returned(self):
+ for hint_gens in [(), (self.sizes(),), (self.perm_hints(),),
+ (self.sizes(), self.perm_hints())]:
+ for loc_data in itertools.izip(self.checksums(), *hint_gens):
+ locator = '+'.join(loc_data)
+ self.assertEquals(locator, str(KeepLocator(locator)))
+
+ def test_nonchecksum_rejected(self):
+ for badstr in ['', 'badbadbad', '8f9e68d957b504a29ba76c526c3145dj',
+ '+8f9e68d957b504a29ba76c526c3145d9',
+ '3+8f9e68d957b504a29ba76c526c3145d9']:
+ self.assertRaises(ValueError, KeepLocator, badstr)
+
+ def test_bad_hints_rejected(self):
+ checksum = next(self.checksums(1))
+ for badhint in ['', 'nonsense', '+32', checksum]:
+ self.assertRaises(ValueError, KeepLocator,
+ '+'.join([checksum, badhint]))
+
+ def test_expiry_passed(self):
+ checksum = next(self.checksums(1))
+ signature = next(self.signatures(1))
+ dt1980 = datetime.datetime(1980, 1, 1)
+ dt2000 = datetime.datetime(2000, 2, 2)
+ dt2080 = datetime.datetime(2080, 3, 3)
+ locator = KeepLocator(checksum)
+ self.assertFalse(locator.permission_expired())
+ self.assertFalse(locator.permission_expired(dt1980))
+ self.assertFalse(locator.permission_expired(dt2080))
+ # Timestamped to 1987-01-05 18:48:32.
+ locator = KeepLocator('{}+A{}@20000000'.format(checksum, signature))
+ self.assertTrue(locator.permission_expired())
+ self.assertTrue(locator.permission_expired(dt2000))
+ self.assertFalse(locator.permission_expired(dt1980))
+
+
+if __name__ == '__main__':
+ unittest.main()