class_docstr: Integration tests to verify outputs of compilation pipelines.
class_docstr_tok: ["Integration","tests","to","verify","outputs","of","compilation","pipelines","."]
docstr: Test that the default pipeline removes Barriers.
docstr_tok: ["Test","that","the","default","pipeline","removes","Barriers","."]
code: def test_compile_default_pipeline_removes_barrier(self):
      """Test that the default pipeline removes Barriers."""
  
      tape = qml.tape.QuantumScript(
          [qml.PauliX(0), qml.Barrier([0, 1]), qml.CNOT([0, 1])]
      )
      [compiled_tape], _ = qml.compile(tape)
      assert compiled_tape.operations == [
          qml.PauliX(0),
          qml.CNOT([0, 1]),
      ]
  
imports: from functools import partial
  import pytest
  from test_optimization.utils import compare_operation_lists
  import pennylane
  from pennylane import numpy
  from pennylane.wires import Wires
  from pennylane.transforms.compile import compile
  from pennylane.transforms import unitary_to_rot
  from pennylane.transforms.optimization import cancel_inverses, commute_controlled, merge_rotations, single_qubit_fusion
  from pennylane.transforms.optimization.optimization_utils import _fuse_global_phases
label_desc: Use image node_id 4 for calling the TestCompileIntegration obj's underlying member method code with example usage: obj.test_compile_default_pipeline_removes_barrier() without return types