black formatting

Author: browniea

mhkit/tests/river/test_io_d3d.py

@@ -371,6 +371,15 @@ def test_turbulent_intensity(self):
         ucx_size = np.size(ucx["ucx"])
         self.assertEqual(TI_size, ucx_size)
 
+    def test_calculate_grid_convergence_index(self):
+        fine_grid = np.array([1.0, 2.0, 3.0])
+        coarse_grid = np.array([0.5, 1.5, 2.5])
+        refinement_ratio = 2.0
+        gci = river.io.d3d.calculate_grid_convergence_index(
+            fine_grid, coarse_grid, refinement_ratio
+        )
+        assert_array_almost_equal(gci, np.array([0.2083, 0.1042, 0.0694]), decimal=3)
+
 
 if __name__ == "__main__":
     unittest.main()