code: def test_invalid_parameters(self):
      # q < .1
      assert_raises(ValueError, psturng, -0.1, 5, 6)
      # r < 2
      assert_raises((ValueError, OverflowError), psturng, 0.9, 1, 2)
  
imports: from statsmodels.compat.python import lzip, lmap
  from numpy.testing import assert_equal, assert_almost_equal, assert_array_almost_equal, assert_raises
  import numpy
  import pytest
  from statsmodels.stats.libqsturng import qsturng, psturng
label_desc: Use image node_id 4 for calling the TestPsturng obj's underlying member method code with example usage: obj.test_invalid_parameters() without return types