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import gc
import sys
import tracemalloc
# exec the first argument to get func() and n
exec_globals = {}
exec(sys.argv[1], exec_globals)
func = exec_globals["func"]
n = int(sys.argv[2]) if sys.argv[2:] else 1
# Pre-run once
try:
func()
except Exception:
pass
# Create filter to only report leaks on the 'tracemalloc: measure' line below
filters = []
with open(__file__) as fp:
for i, line in enumerate(fp, start=1):
if "tracemalloc: measure" in line:
filters.append(tracemalloc.Filter(True, __file__, i))
# Clean up and take a snapshot
tracemalloc.start()
gc.collect()
before = tracemalloc.take_snapshot().filter_traces(filters)
# Run
for i in range(n):
try:
func() # tracemalloc: measure
except Exception:
pass
# Clean up and second snapshot
gc.collect()
after = tracemalloc.take_snapshot().filter_traces(filters)
# Check that nothing got leaked
diff = after.compare_to(before, "lineno")
if diff:
for stat in diff:
print(stat)
sys.exit(1)
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