add test_override

tests/codegen/test_config.py

@@ -136,3 +136,26 @@ def test_config_validation():
         cfg.index_field = Field.create_generic(
             "idx", spatial_dimensions=1, field_type=FieldType.GENERIC
         )
+
+
+def test_override():
+    cfg1 = CreateKernelConfig()
+    cfg1.function_name = "test"
+    cfg1.cpu.openmp.schedule = "dynamic"
+    cfg1.gpu.manual_launch_grid = False
+    cfg1.allow_double_writes = True
+
+    cfg2 = CreateKernelConfig()
+    cfg2.function_name = "func"
+    cfg2.cpu.openmp.schedule = "static(5)"
+    cfg2.cpu.vectorize.lanes = 12
+    cfg2.allow_double_writes = False
+
+    cfg1.override(cfg2)
+
+    assert cfg1.function_name == "func"
+    assert cfg1.cpu.openmp.schedule == "static(5)"
+    assert cfg1.cpu.openmp.enable is None
+    assert cfg1.cpu.vectorize.lanes == 12
+    assert cfg1.cpu.vectorize.assume_aligned is None
+    assert cfg1.allow_double_writes is False