Nim/tests/gc/gcleak.nim

discard """
  outputsub: "no leak: "
"""

when defined(GC_setMaxPause):
  GC_setMaxPause 2_000

type
  TTestObj = object of RootObj
    x: string

proc makeObj(): TTestObj =
  result.x = "Hello"

for i in 1 .. 1_000_000:
  when defined(gcMarkAndSweep) or defined(boehmgc):
    GC_fullcollect()
  var obj = makeObj()
  if getOccupiedMem() > 300_000: quit("still a leak!")
#  echo GC_getstatistics()

echo "no leak: ", getOccupiedMem()