from amitools.vamos.schedule import Stack


def schedule_stack_default_test(mem_alloc):
  mem, alloc = mem_alloc
  st = Stack.alloc(alloc, 4096)
  assert st
  l = st.get_lower()
  u = st.get_upper()
  s = st.get_size()
  assert u - l == s
  assert mem.r32(u-4) == s
  st.free()
  assert alloc.is_all_free()