text: import pytest
  import pypospack.utils
  
  
  pypospack_root_dir = get_pypospack_root_directory()
  pyposmat_config_file = os.path.join(pypospack_root_dir,'data/Ni__eam__born_exp_fs__3.5NN/pyposmat.config.in')
  pyposmat_data_file = os.path.join(pypospack_root_dir,'data/Ni__eam__born_exp_fs__3.5NN/pyposmat.results.4.out')
  
  def test__init():
      o_pca = PyposmatPcaAnalysis()
  
  
  