code: def test_np_integers(self):
      ITYPES = [
          np.int16,
          np.int32,
          np.int64,
          np.uint16,
          np.uint32,
          np.uint64,
      ]
      for ityp in ITYPES:
          x = ityp(12345)
          testN = next_fast_len(x)
          assert_equal(testN, next_fast_len(int(x)))
  
imports: from scipy.fft._helper import next_fast_len, _init_nd_shape_and_axes
  from numpy.testing import assert_equal, assert_array_equal
  from pytest import raises
  import pytest
  import numpy
  import sys
label_desc: Use image node_id 2 for calling the TestNextFastLen obj's underlying member method code with example usage: obj.test_np_integers() without return types