code: def test_doa_params_setter():
      new_doa = doa.DOA()
  
      try:
          new_doa.r = "a"
      except:
          new_doa.r = 1.0
  
      try:
          new_doa.r = -1
      except:
          new_doa.r = 1.0
  
      assert new_doa.r == 1.0
  
file_path: opytimizer/tests/opytimizer/optimizers/misc/test_doa.py
imports: import numpy
  from opytimizer.optimizers.misc import doa
  from opytimizer.spaces import search
label_desc: Use image node_id 2 for calling a global function with example usage: test_doa_params_setter() without return types