class_docstr: Test Evolution(Exp) class that takes a parameter x and a generator G and defines an evolution exp(ixG)
docstr: Tests that when simplification of the base results in an SProd,
  the scalar is included in the coeff rather than the base
docstr_tok: ["Tests","that","when","simplification","of","the","base","results","in","an","SProd",",","the","scalar","is","included","in","the","coeff","rather","than","the","base"]
code: def test_simplify_s_prod(self):
      """Tests that when simplification of the base results in an SProd,
      the scalar is included in the coeff rather than the base"""
      base = qml.s_prod(2, qml.sum(qml.PauliX(0), qml.PauliX(0)))
      op = Evolution(base, 3)
      new_op = op.simplify()
  
      assert qml.equal(new_op.base, qml.PauliX(0))
      assert new_op.coeff == -12j
  
imports: import pytest
  import pennylane
  from pennylane import numpy
  from pennylane.ops.op_math import Evolution, Exp
label_desc: Use image node_id 13 for calling the TestEvolution obj's underlying member method code with example usage: obj.test_simplify_s_prod() without return types