code: def test_correlate_empty(self, dtype):
      for xp in (numpy, cupy):
          a = xp.zeros((0,), dtype)
          with pytest.raises(ValueError):
              xp.correlate(a, a, mode=self.mode)
  
imports: import unittest
  import numpy
  import pytest
  import cupy
  from cupy import testing
label_desc: Use image node_id 1 for calling the TestCorrelateInvalid obj's underlying member method code with example usage: obj.test_correlate_empty(dtype) without return types