class_docstr: Tests that the template defines the correct sign flip.
class_docstr_tok: ["Tests","that","the","template","defines","the","correct","sign","flip","."]
docstr: Assert error raised when given negative basic status
docstr_tok: ["Assert","error","raised","when","given","negative","basic","status"]
code: def test_empty_wire_error(self, n_status, n_wires):
      """Assert error raised when given negative basic status"""
      with pytest.raises(
          ValueError,
          match="expected an integer equal or greater than zero for basic flipping state",
      ):
          qml.FlipSign(n_status, wires=n_wires)
  
file_path: pennylane/tests/templates/test_subroutines/test_flip_sign.py
imports: import pytest
  from pennylane import numpy
  import pennylane
label_desc: Use image node_id 2 for calling the TestFlipSign obj's underlying member method code with example usage: obj.test_empty_wire_error(n_status, n_wires) without return types