async def test_multiple_save_deeply_nested_and_fetch(engine: AIOEngine):
instances = [
NestedLevel1(field=1,
next_=NestedLevel2(field=2, next_=NestedLevel3(field=3))),
NestedLevel1(field=4,
next_=NestedLevel2(field=5, next_=NestedLevel3(field=6))),
]
await engine.save_all(instances)
fetched = await engine.find(NestedLevel1)
assert len(fetched) == 2
assert fetched[0] in instances
assert fetched[1] in instances
async def test_update_deeply_nested(engine: AIOEngine):
inst3 = NestedLevel3(
field=0) # Isolate inst3 to make sure it's not internaly copied
instance = NestedLevel1(next_=NestedLevel2(next_=inst3))
await engine.save(instance)
assert await engine.count(NestedLevel3, NestedLevel3.field == 42) == 0
inst3.field = 42
await engine.save(instance)
assert await engine.count(NestedLevel3, NestedLevel3.field == 42) == 1
async def test_save_deeply_nested_and_fetch(engine: AIOEngine):
instance = NestedLevel1(next_=NestedLevel2(next_=NestedLevel3(field=0)))
await engine.save(instance)
fetched = await engine.find_one(NestedLevel1)
assert fetched == instance
async def test_save_deeply_nested(engine: AIOEngine):
instance = NestedLevel1(next_=NestedLevel2(next_=NestedLevel3()))
await engine.save(instance)
assert await engine.count(NestedLevel3) == 1
assert await engine.count(NestedLevel2) == 1
assert await engine.count(NestedLevel1) == 1