class_docstr: Unit tests for clifford compilation function.
class_docstr_tok: ["Unit","tests","for","clifford","compilation","function","."]
docstr: Test decomposition for the Clifford transform.
docstr_tok: ["Test","decomposition","for","the","Clifford","transform","."]
code: def test_decomposition(self, circuit, max_expansion):
      """Test decomposition for the Clifford transform."""
  
      old_tape = qml.tape.make_qscript(circuit)()
  
      [new_tape], tape_fn = clifford_t_decomposition(
          old_tape, max_expansion=max_expansion, max_depth=3
      )
  
      assert all(
          isinstance(op, _CLIFFORD_PHASE_GATES)
          or isinstance(
              getattr(op, "base", None), _CLIFFORD_PHASE_GATES
          )
          for op in new_tape.operations
      )
  
      dev = qml.device("default.qubit")
      transform_program, _ = dev.preprocess()
      res1, res2 = qml.execute(
          [old_tape, new_tape],
          device=dev,
          transform_program=transform_program,
      )
      qml.math.isclose(res1, tape_fn([res2]), atol=1e-2)
  
imports: import math
  from functools import reduce
  import pytest
  import pennylane
  from pennylane.transforms.decompositions.clifford_t_transform import check_clifford_t, clifford_t_decomposition, _rot_decompose, _one_qubit_decompose, _two_qubit_decompose, _CLIFFORD_T_GATES
  from pennylane.transforms.optimization.optimization_utils import _fuse_global_phases
label_desc: Use image node_id 2 for calling the TestCliffordCompile obj's underlying member method code with example usage: obj.test_decomposition(circuit, max_expansion) without return types