old_contents: from pandas import read_csv
  
  import pastas as ps
  
  
  def test_create_rechargemodel():
      rain = read_csv("tests/data/rain.csv", index_col=0, parse_dates=True,
                      squeeze=True)
      evap = read_csv("tests/data/evap.csv", index_col=0, parse_dates=True,
                      squeeze=True)
      rm = ps.RechargeModel(prec=rain, evap=evap, name='recharge',
                            recharge="Linear")
      return rm
  
  
  def test_create_model():
      obs = read_csv("tests/data/obs.csv", index_col=0, parse_dates=True,
                     squeeze=True)
      ml = ps.Model(obs, name="Test_Model")
      sm = test_create_rechargemodel()
      ml.add_stressmodel(sm)
      return ml
  
  
  def test_model_solve():
      ml = test_create_model()
      ml.solve()
      return
  
  
  def test_model_copy():
      ml = test_create_model()
      ml.copy()
      return
  
new_contents: from pandas import read_csv
  
  import pastas as ps
  
  
  def test_create_rechargemodel():
      rain = read_csv("tests/data/rain.csv", index_col=0, parse_dates=True,
                      squeeze=True)
      evap = read_csv("tests/data/evap.csv", index_col=0, parse_dates=True,
                      squeeze=True)
      rm = ps.RechargeModel(prec=rain, evap=evap, name='recharge')
      return rm
  
  
  def test_create_model():
      obs = read_csv("tests/data/obs.csv", index_col=0, parse_dates=True,
                     squeeze=True)
      ml = ps.Model(obs, name="Test_Model")
      sm = test_create_rechargemodel()
      ml.add_stressmodel(sm)
      return ml
  
  
  def test_model_solve():
      ml = test_create_model()
      ml.solve()
      return
  
  
  def test_model_copy():
      ml = test_create_model()
      ml.copy()
      return
  
subject: Fix travis bug