def test_db_for_read(self):
router = ShardedPerTenantRouter()
obj = TShardedModel(partner_id=PID)
db_alias = router.db_for_read(TShardedModel, instance=obj)
self.assertEqual(db_alias, 'test2__{}'.format(obj.partner_id))
self.assertFalse(router._write_mode)
def test_get_shard_for_instance_read_mod(self):
instance = TShardedModel(partner_id=PID)
router = ShardedPerTenantRouter()
router._write_mode = False
db_alias = router._get_shard_for_instance(instance)
self.assertEqual(db_alias, 'test2__{}'.format(instance.partner_id))
def test_get_shard_with_instance_read_mode(self):
router = ShardedPerTenantRouter()
router._write_mode = False
instance = TShardedModel(partner_id=PID)
hints = {'instance': instance}
db_alias = router._get_shard(TShardedModel, **hints)
self.assertEqual(db_alias, 'test2__{}'.format(instance.partner_id))
def test_allow_relation(self):
router = ShardedPerTenantRouter()
obj1 = TShardedModel(partner_id=PID)
obj2 = TShardedModel(partner_id=obj1.partner_id)
result = router.allow_relation(obj1, obj2)
self.assertTrue(result)
self.assertTrue(router._write_mode)
def test_get_shard_read_mode(self):
partner_id = PID
router = ShardedPerTenantRouter()
router._write_mode = False
hints = {'exact_lookups': {TShardedModel.sharded_field: partner_id}}
db_alias = router._get_shard(TShardedModel, **hints)
self.assertEqual(db_alias, 'test2__{}'.format(partner_id))
def test__build_db_alias_without_shard_value(self):
router = ShardedPerTenantRouter()
router._write_mode = True
db_alias = router._build_db_alias(None, TShardedModel)
self.assertEqual(db_alias, 'test1')
def test__build_db_alias_with_config(self):
router = ShardedPerTenantRouter()
router._write_mode = True
db_alias = router._build_db_alias(1, TShardedModel)
self.assertEqual(db_alias, 'test1__1')
def test_get_db_group_for_default(self):
router = ShardedPerTenantRouter()
router._write_mode = True
db_group = router._get_db_group(TShardedModel)
self.assertEqual(db_group, 'test1')
def test_get_db_group_for_read(self):
router = ShardedPerTenantRouter()
router._write_mode = False
db_group = router._get_db_group(TShardedModel)
self.assertEqual(db_group, 'test2')
def test_if_alias_not_in_DATABASES_then_return_db_group(self):
router = ShardedPerTenantRouter()
router._write_mode = True
db_alias = router._build_db_alias(1, TShardedModel)
self.assertEqual(db_alias, 'test1')
def test_db_for_read_for_non_sharded_model(self):
router = ShardedPerTenantRouter()
self.assertIsNone(router.db_for_write(TNoneShardedModel))
def test_is_sharded_model(self):
router = ShardedPerTenantRouter()
self.assertTrue(router._is_sharded_model(TShardedModel))
self.assertFalse(router._is_sharded_model(TNoneShardedModel))
