Parameterize test_reduction.py for different reduction operations

tests/kernelcreation/test_reduction.py

@@ -3,17 +3,18 @@ import numpy as np
 import sympy as sp
 
 import pystencils as ps
-from pystencils import AddReducedAssignment
+from pystencils.sympyextensions import reduced_assign
 
 
 @pytest.mark.parametrize('dtype', ["float64"])
-def test_reduction(dtype):
+@pytest.mark.parametrize("op", ["+", "-", "*", "min", "max"])
+def test_reduction(dtype, op):
     x = ps.fields(f'x: {dtype}[1d]')
     w = sp.Symbol("w")
 
     # kernel with reduction assignment
 
-    reduction_assignment = AddReducedAssignment(w, x.center())
+    reduction_assignment = reduced_assign(w, op, x.center())
 
     config = ps.CreateKernelConfig(cpu_openmp=True)