class_docstr: Tests that the Barrier gate is correct.
class_docstr_tok: ["Tests","that","the","Barrier","gate","is","correct","."]
docstr: Test if adjoint of a Barrier is decomposed correctly.
docstr_tok: ["Test","if","adjoint","of","a","Barrier","is","decomposed","correctly","."]
code: def test_barrier_adjoint(self):
      """Test if adjoint of a Barrier is decomposed correctly."""
  
      base = qml.Barrier(wires=(0, 1))
      adj = qml.ops.op_math.Adjoint(base)
  
      assert adj.decomposition()[0].name == "Barrier"
  
imports: import pytest
  import numpy
  from pennylane import Snapshot
  import pennylane
label_desc: Use image node_id 4 for calling the TestBarrier obj's underlying member method code with example usage: obj.test_barrier_adjoint() without return types