Create add_surface_water regression tests

reframe_tests/tests/test_geometry.py

@@ -22,6 +22,13 @@ class TestAddSurfaceRoughness(GprMaxGeometryTest):
     )
 
 
+@rfm.simple_test
+class TestAddSurfaceWater(GprMaxGeometryTest):
+    tags = {"test", "serial", "geometery", "fractal", "surface", "roughness", "water"}
+    sourcesdir = "src/geometry_tests/add_surface_water_geometry"
+    model = parameter(["add_surface_water_full", "add_surface_water_small"])
+
+
 @rfm.simple_test
 class TestBoxGeometryDefaultPml(GprMaxRegressionTest):
     tags = {"test", "serial", "geometery", "box"}