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# Test btree interaction with the garbage collector.
try:
import btree, io, gc
except ImportError:
print("SKIP")
raise SystemExit
N = 80
# Create a BytesIO but don't keep a reference to it.
db = btree.open(io.BytesIO(), pagesize=512)
# Overwrite lots of the Python stack to make sure no reference to the BytesIO remains.
x = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
# Write lots of key/value pairs, which fill up the DB and also allocate temporary heap
# memory due to the string addition, and do a GC collect to verify that the BytesIO
# is not collected.
for i in range(N):
db[b"thekey" + str(i)] = b"thelongvalue" + str(i)
print(db[b"thekey" + str(i)])
gc.collect()
# Reclaim memory allocated by the db object.
db.close()
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