class_docstr: Test the THermitian observable
class_docstr_tok: ["Test","the","THermitian","observable"]
docstr: Test that the Hermitian matrix method produces the correct output.
docstr_tok: ["Test","that","the","Hermitian","matrix","method","produces","the","correct","output","."]
code: def test_thermitian_matrix(self, tol):
      """Test that the Hermitian matrix method produces the correct output."""
      H_01 = np.array(
          [[1, 1, 0], [1, -1, 0], [0, 0, np.sqrt(2)]]
      ) / np.sqrt(2)
      out = qml.THermitian(H_01, wires=0).matrix()
  
      # verify output type
      assert isinstance(out, np.ndarray)
  
      # verify equivalent to input state
      assert np.allclose(out, H_01, atol=tol, rtol=0)
  
imports: import functools
  from unittest.mock import PropertyMock, patch
  import pytest
  import numpy
  from gate_data import GELL_MANN
  import pennylane
label_desc: Use image node_id 12 for calling the TestTHermitian obj's underlying member method code with example usage: obj.test_thermitian_matrix(tol) without return types