text: import pytest
  
  import numpy as np
  
  
  @pytest.mark.unit
  def test_crosstalk(get_xtalk_pmap, get_test_signal) -> None:
      xtalk = get_xtalk_pmap.generator.devices["crosstalk"]
      new_sig = xtalk.process(signal=get_test_signal)
      assert new_sig == get_test_signal
  
  
  @pytest.mark.unit
  def test_crosstalk_flip(get_xtalk_pmap, get_test_signal) -> None:
      xtalk = get_xtalk_pmap.generator.devices["crosstalk"]
      xtalk.params["crosstalk_matrix"].set_value([[0, 1], [1, 0]])
      new_sig = xtalk.process(signal=get_test_signal)
      assert (new_sig["TC2"]["values"].numpy() == np.linspace(0, 100, 101)).all()
      assert (new_sig["TC1"]["values"].numpy() == np.linspace(100, 200, 101)).all()
  
  
  @pytest.mark.unit
  def test_crosstalk_mix(get_xtalk_pmap, get_test_signal) -> None:
      xtalk = get_xtalk_pmap.generator.devices["crosstalk"]
      xtalk.params["crosstalk_matrix"].set_value([[0.5, 0.5], [0.5, 0.5]])
      new_sig = xtalk.process(signal=get_test_signal)
      assert (new_sig["TC2"]["values"].numpy() == new_sig["TC1"]["values"].numpy()).all()
  
  
  @pytest.mark.unit
  def test_crosstalk_set_get_parameters(get_xtalk_pmap) -> None:
      get_xtalk_pmap.set_parameters(
          [[1, 1], [1, 1]], [[["crosstalk", "crosstalk_matrix"]]]
      )
      assert (
          get_xtalk_pmap.get_parameters()[0].get_value().numpy() == [[1, 1], [1, 1]]
      ).all()
  