Fix test

Author: SabineHaas

doc/whatsnew/v0-1-0.txt

@@ -52,5 +52,5 @@ Contributors
 ############
 
  * Sabine Haas
- * Birgit Schachler
  * Uwe Krien
+ * Birgit Schachler

tests/test_wake_losses.py

@@ -34,7 +34,7 @@ def test_reduce_wind_speed(self):
 
     def test_get_wind_efficiency_curve_one(self):
         """Test get_wind_efficiency_curve() for one curve."""
-        wec = get_wind_efficiency_curve().sum()
+        wec = get_wind_efficiency_curve('dena_mean').sum()
         wec_exp = pd.Series({'efficiency': 162.45047,
                              'wind_speed': 1915.23620})
         assert_series_equal(wec.sort_index(), wec_exp.sort_index())