text: import pytest
  import pandas as pd
  from subsurface.io.faults import faults
  from subsurface.geological_formats.fault import FaultSticks
  import os
  
  input_path = os.path.dirname(__file__)+'/../data/faults'
  
  
  @pytest.fixture(scope="module")
  def get_faultsticks() -> pd.DataFrame:
      fp = input_path + "/faultsticks"
      faultsticks = faults.read_faultsticks_charisma(fp)
      return faultsticks
  
  
  def test_faultsticks_npoints(get_faultsticks):
      assert len(get_faultsticks) == 12
  
  
  def test_faultsticks_nsticks(get_faultsticks):
      assert len(get_faultsticks["stick id"].unique()) == 4
  
  
  def test_FaultSticks(get_faultsticks):
      """Test instantiation of FaultSticks class."""
      fault = FaultSticks(get_faultsticks)