diff --git a/mytests/test_general.py b/mytests/test_general.py
index 2bda574..158b642 100644
--- a/mytests/test_general.py
+++ b/mytests/test_general.py
@@ -55,3 +55,40 @@ ya = y area
 
     assert w_model.getvalue("xa").value == 25
     assert w_model.getvalue("ya").value == 3.1415
+
+
+def test_rotation():
+    w_model, interpreter = eval_test_program("rotations")
+
+    ast = parse("""
+x = "Hallo"
+y = rotate(x, 2)
+z = rotate(x, 4)
+""")
+    interpreter.eval(ast, w_model)
+
+    assert w_model.getvalue("y").value == "lloHa"
+    assert w_model.getvalue("z").value == "oHall"
+
+
+def test_numbers():
+    w_model, interpreter = eval_test_program("numbers")
+
+    ast = parse("""
+x = generate_list(5)
+
+def function(n):
+    n * n
+    
+y = generate_list(5)
+
+def function(n):
+    n + 1
+    
+z = generate_list(5)
+""")
+    interpreter.eval(ast, w_model)
+
+    assert w_model.getvalue("x").value == "1 2 3 4 5"
+    assert w_model.getvalue("y").value == "1 4 9 16 25"
+    assert w_model.getvalue("z").value == "2 3 4 5 6"