示例#1
0
 def test_readonly_three_replicas(self):
     set_thread_readonly_db()
     replica0 = 'my-replica-db0'
     replica1 = 'my-replica-db1'
     replica2 = 'my-replica-db2'
     pool = {
         replica0: 1,
         replica1: 1,
         replica2: 1,
     }
     replicas = pool.keys()
     with override_settings(DATABASE_POOL=pool):
         router = DBRouter()
         out0 = router.db_for_read(Submission)
         self.assertIn(out0, replicas)
         out1 = router.db_for_read(Submission)
         self.assertIn(out1, replicas)
         self.assertNotEqual(out0, out1)
         out2 = router.db_for_read(Submission)
         self.assertIn(out2, replicas)
         self.assertNotEqual(out1, out2)
         out3 = router.db_for_read(Submission)
         # Round-robin should have come around by now
         self.assertEqual(out3, out0)
     self.assertFalse(was_db_written())
示例#2
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 def test_writing_sets_db_written_flag(self):
     router = DBRouter()
     router.db_for_read(Submission)
     self.assertFalse(was_db_written())
     router.db_for_write(Submission)
     self.assertTrue(was_db_written())
     # A read won't reset the flag
     router.db_for_read(Submission)
     self.assertTrue(was_db_written())
示例#3
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 def test_readonly_one_replica(self):
     set_thread_readonly_db()
     replica = 'my-only-replica-db'
     pool = {
         replica: 1
     }
     with override_settings(DATABASE_POOL=pool):
         router = DBRouter()
         out = router.db_for_read(Submission)
         self.assertEqual(replica, out)
         out = router.db_for_read(Submission)
         self.assertEqual(replica, out)
     self.assertFalse(was_db_written())
示例#4
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 def test_readwrite(self):
     self.assertFalse(was_db_written())
     set_thread_readwrite_db()
     master = 'my_master_db'
     with override_settings(MASTER_DATABASE=master):
         router = DBRouter()
         out = router.db_for_read(Submission)
         self.assertEqual(master, out)
         out = router.db_for_write(Submission)
         self.assertEqual(master, out)
     self.assertTrue(was_db_written())