diff --git a/test/usecases/function/artificial_functions.mod b/test/usecases/function/artificial_functions.mod
new file mode 100644
index 000000000..a6d574fde
--- /dev/null
+++ b/test/usecases/function/artificial_functions.mod
@@ -0,0 +1,34 @@
+NEURON {
+    ARTIFICIAL_CELL art_functions
+    RANGE x
+    GLOBAL gbl
+}
+
+ASSIGNED {
+    gbl
+    v
+    x
+}
+
+FUNCTION x_plus_a(a) {
+    x_plus_a = x + a
+}
+
+FUNCTION identity(v) {
+    identity = v
+}
+
+INITIAL {
+    x = 1.0
+    gbl = 42.0
+}
+
+: A LINEAR block makes a MOD file not VECTORIZED.
+STATE {
+  z
+}
+
+LINEAR lin {
+  ~ z = 2
+}
+
diff --git a/test/usecases/function/test_functions.py b/test/usecases/function/test_functions.py
index 6936fe29e..046cb8555 100644
--- a/test/usecases/function/test_functions.py
+++ b/test/usecases/function/test_functions.py
@@ -1,7 +1,7 @@
 from neuron import h
 
 
-def check_callable(get_instance):
+def check_callable(get_instance, has_voltage=True):
     for x, value in zip(coords, values):
         get_instance(x).x = value
 
@@ -19,10 +19,11 @@ def check_callable(get_instance):
     actual = get_instance(x).identity(expected)
     assert actual == expected, f"{actual} == {expected}"
 
-    # Check `f` using `v`.
-    expected = -2.0
-    actual = get_instance(x).v_plus_a(40.0)
-    assert actual == expected, f"{actual} == {expected}"
+    if has_voltage:
+        # Check `f` using `v`.
+        expected = -2.0
+        actual = get_instance(x).v_plus_a(40.0)
+        assert actual == expected, f"{actual} == {expected}"
 
 
 nseg = 5
@@ -38,7 +39,10 @@ def check_callable(get_instance):
 point_processes = {x: h.point_functions(s(x)) for x in coords}
 point_non_threadsafe = {x: h.point_non_threadsafe(s(x)) for x in coords}
 
+art_cells = {x: h.art_functions() for x in coords}
+
 check_callable(lambda x: s(x).functions)
 check_callable(lambda x: s(x).non_threadsafe)
 check_callable(lambda x: point_processes[x])
 check_callable(lambda x: point_non_threadsafe[x])
+check_callable(lambda x: art_cells[x], has_voltage=False)