Update test FE

Author: antoinedemathelin

tests/test_FE.py

@@ -17,6 +17,6 @@ def predict(self, X):
 def test_fit_predict():
     model = FE(DummyEstimator)
     model.fit(np.ones((100,10)), np.ones(100),
-              index=[range(80), range(80, 100)])
+              src_index=range(80), tgt_index=range(80, 100))
     y_pred = model.predict(np.ones((100,10)))
     assert np.all(y_pred == np.zeros(100))