class_docstr: Tests for the transmon drive Hamiltonian.
docstr: Test that the attributes and the number of terms of the ``ParametrizedHamiltonian`` returned by
  ``drive`` are correct.
docstr_tok: ["Test","that","the","attributes","and","the","number","of","terms","of","the","``","ParametrizedHamiltonian","``","returned","by","``","drive","``","are","correct","."]
code: def test_attributes_and_number_of_terms(self):
      """Test that the attributes and the number of terms of the ``ParametrizedHamiltonian`` returned by
      ``drive`` are correct."""
  
      Hd = transmon_drive(amplitude=1, phase=2, freq=3, wires=[1, 2])
  
      assert isinstance(Hd, HardwareHamiltonian)
      assert Hd.wires == Wires([1, 2])
      assert len(Hd.ops) == 1
      assert Hd.pulses == [HardwarePulse(1, 2, 3, wires=[1, 2])]
  
imports: import numpy
  import pytest
  import pennylane
  from pennylane.pulse import HardwareHamiltonian, transmon_interaction, transmon_drive
  from pennylane.pulse.transmon import TransmonSettings, a, ad, AmplitudeAndPhaseAndFreq, _reorder_AmpPhaseFreq, callable_freq_to_angular
  from pennylane.pulse.hardware_hamiltonian import HardwarePulse
  from pennylane.wires import Wires
label_desc: Use image node_id 2 for calling the TestTransmonDrive obj's underlying member method code with example usage: obj.test_attributes_and_number_of_terms() without return types