class_docstr: Test Fourier coefficients are properly validated/invalidated.
class_docstr_tok: ["Test","Fourier","coefficients","are","properly","validated\/invalidated","."]
docstr: Check invalid Fourier coefficient inputs are caught.
docstr_tok: ["Check","invalid","Fourier","coefficient","inputs","are","caught","."]
code: def test_invalid_fourier_coeffs(
      self, coeffs, n_inputs, can_be_list, expected_error_message
  ):
      """Check invalid Fourier coefficient inputs are caught."""
      with pytest.raises(ValueError, match=expected_error_message):
          _validate_coefficients(coeffs, n_inputs, can_be_list)
  
file_path: pennylane/tests/fourier/test_visualize.py
imports: import pytest
  from pennylane import numpy
  from pennylane.fourier.visualize import _validate_coefficients
  from pennylane.fourier.visualize import violin, bar, box, panel, radial_box
label_desc: Use image node_id 3 for calling the TestValidateCoefficients obj's underlying member method code with example usage: obj.test_invalid_fourier_coeffs(coeffs, n_inputs, can_be_list, expected_error_message) without return types