Fix unit test. Remove unused import

Author: softwareengineerprogrammer

src/geophires_x/EconomicsSam.py

@@ -43,7 +43,7 @@
 from geophires_x.GeoPHIRESUtils import is_float, is_int, sig_figs, quantity
 from geophires_x.OptionList import EconomicModel, EndUseOptions
 from geophires_x.Parameter import Parameter, OutputParameter, floatParameter
-from geophires_x.Units import convertible_unit, EnergyCostUnit, CurrencyUnit, Units, CurrencyFrequencyUnit
+from geophires_x.Units import convertible_unit, EnergyCostUnit, CurrencyUnit, Units
 
 
 @dataclass

tests/test_geophires_x.py

@@ -1452,7 +1452,7 @@ def test_royalty_rate_with_addon(self):
             )
         )
 
-        self.assertEqual(30, sig_figs(result.result['EXTENDED ECONOMICS']['Royalty Holder NPV']['value'], 1))
+        self.assertEqual(50, sig_figs(result.result['EXTENDED ECONOMICS']['Royalty Holder NPV']['value'], 1))
 
         addon_cash_flow = _cash_flow_profile_row(result.result['SAM CASH FLOW PROFILE'], 'Capacity payment revenue ($)')
         self.assertEqual(0, addon_cash_flow[0])