code: def test_simple(self):
      x = np.array([1 + 1j, 0 + 2j, 1 + 2j, np.inf, np.nan])
      y_r = x**2
      y = np.power(x, 2)
      assert_almost_equal(y, y_r)
  
imports: import sys
  import platform
  import pytest
  import numpy
  import numpy._core._multiarray_umath
  from numpy.testing import assert_raises, assert_equal, assert_array_equal, assert_almost_equal, assert_array_max_ulp
label_desc: Use image node_id 3 for calling the TestCpow obj's underlying member method code with example usage: obj.test_simple() without return types