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from test import support
import sys
try:
from _testcapi import USE_STACKCHECK
except ImportError:
USE_STACKCHECK = False
def check(cond):
if not cond:
raise AssertionError("test failed")
# depth 1
check(support.get_recursion_depth() == 1)
# depth 2
def test_func():
check(support.get_recursion_depth() == 2)
test_func()
def test_recursive(depth, limit):
if depth >= limit:
# cannot call get_recursion_depth() at this depth,
# it can raise RecursionError
return
get_depth = support.get_recursion_depth()
print(f"test_recursive: {depth}/{limit}: "
f"get_recursion_depth() says {get_depth}")
check(get_depth == depth)
test_recursive(depth + 1, limit)
if USE_STACKCHECK:
# f-string consumes 2 frames and -1 for USE_STACKCHECK
IGNORE = 3
else:
# f-string consumes 2 frames
IGNORE = 2
# depth up to 25
with support.infinite_recursion(max_depth=25):
limit = sys.getrecursionlimit()
print(f"test with sys.getrecursionlimit()={limit}")
test_recursive(2, limit - IGNORE)
# depth up to 500
with support.infinite_recursion(max_depth=500):
limit = sys.getrecursionlimit()
print(f"test with sys.getrecursionlimit()={limit}")
test_recursive(2, limit - IGNORE)
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