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import gc
from unittest.mock import patch
import pytest
from asdf._block.key import Key
from asdf._block.store import Store
# a blank class for testing
class Foo:
pass
def test_store_by_obj():
f = Foo()
v = 42
s = Store()
s.assign_object(f, v)
assert s.lookup_by_object(f) == v
def test_get_missing_by_obj():
f = Foo()
s = Store()
assert s.lookup_by_object(f) is None
def test_store_by_key():
f = Foo()
v = 42
s = Store()
k = Key(f)
s.assign_object(k, v)
assert s.lookup_by_object(k) == v
def test_get_by_key():
f = Foo()
v = 42
s = Store()
k = Key(f)
s.assign_object(k, v)
assert s.lookup_by_object(f) == v
def test_get_missing_key():
f = Foo()
s = Store()
k = Key(f)
assert s.lookup_by_object(k) is None
def test_get_missing_key_same_obj():
f = Foo()
v = 42
s = Store()
k = Key(f)
s.assign_object(k, v)
k2 = Key(f)
assert s.lookup_by_object(k2) is None
def test_get_existing_default():
f = Foo()
v = 42
s = Store()
s.assign_object(f, v)
assert s.lookup_by_object(f, 26) == v
def test_get_missing_default():
f = Foo()
v = 42
s = Store()
assert s.lookup_by_object(f, v) == v
def test_set_same_object():
f = Foo()
v = 42
s = Store()
s.assign_object(f, 26)
s.assign_object(f, v)
assert s.lookup_by_object(f) == v
def test_invalid_key_assign_object():
s = Store()
k = Key()
with pytest.raises(ValueError, match="Invalid key used for assign_object"):
s.assign_object(k, 42)
def test_set_same_key():
f = Foo()
s = Store()
k = Key(f)
v = 42
s.assign_object(k, 26)
s.assign_object(k, v)
assert s.lookup_by_object(k) == v
def test_get_memory_reused():
f = Foo()
s = Store()
v = 42
s.assign_object(f, v)
fid = id(f)
del f
gc.collect(2)
f2 = Foo()
def mock_id(obj):
if obj is f2:
return fid
return id(obj)
with patch("asdf._block.store.id", mock_id):
assert s.lookup_by_object(f2) is None
def test_set_memory_reused():
f = Foo()
s = Store()
v = 42
s.assign_object(f, v)
fid = id(f)
del f
gc.collect(2)
f2 = Foo()
def mock_id(obj):
if obj is f2:
return fid
return id(obj)
with patch("asdf._block.store.id", mock_id):
nv = 26
s.assign_object(f2, nv)
assert s.lookup_by_object(f2) is nv
def test_cleanup():
f = Foo()
s = Store()
k = Key(f)
s.assign_object(s, 42)
s.assign_object(k, 26)
del f
gc.collect(2)
s._cleanup()
assert s.lookup_by_object(k, None) is None
def test_keys_for_value():
s = Store()
data = {
Foo(): 42,
Foo(): 26,
Foo(): 42,
Foo(): 11,
}
data_by_value = {}
for o, v in data.items():
s.assign_object(o, v)
data_by_value[v] = [*data_by_value.get(v, []), o]
for v, objs in data_by_value.items():
objs = set(objs)
returned_objects = set()
for k in s.keys_for_value(v):
assert k._is_valid()
obj = k._ref()
returned_objects.add(obj)
assert objs == returned_objects
del returned_objects, objs
gc.collect(2)
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