class_docstr: Tests integration with various state prep methods.
docstr: Test that the BasisState operator prepares the desired state.
docstr_tok: ["Test","that","the","BasisState","operator","prepares","the","desired","state","."]
code: def test_basis_state(self):
      """Test that the BasisState operator prepares the desired state."""
      qs = qml.tape.QuantumScript(
          ops=[qml.BasisState([0, 1], wires=(0, 1))],
          measurements=[qml.probs(wires=(0, 1, 2))],
      )
      probs = simulate(qs)
      expected = np.zeros(8)
      expected[2] = 1.0
      assert qml.math.allclose(probs, expected)
  
imports: import pytest
  import numpy
  import pennylane
  from pennylane.devices.qubit import simulate, get_final_state, measure_final_state
label_desc: Use image node_id 1 for calling the TestStatePrepBase obj's underlying member method code with example usage: obj.test_basis_state() without return types