test/import/test_shake_lexer.rb in tracksperanto-2.2.2 vs test/import/test_shake_lexer.rb in tracksperanto-2.2.4

@@ -82,9 +82,22 @@
         [:value_at, 4, 715.034],
         [:value_at, 5, 714.377]
       ]],
     s)
   end
+
+  def test_parse_funcall_with_valueats_at_negframes
+    s = parse 'Linear(0,716.08@-1,715.846@2)'
+    assert_equal(
+      [[
+        :funcall,
+        "Linear",
+        0,
+        [:value_at, -1, 716.08],
+        [:value_at, 2, 715.846],
+      ]],
+    s)
+  end
   
   def test_parse_hermite_valuats_containing_arrays
     # Hermite curves use array args
     s = parse 'Hermite(0,[-64,98.33,98.33]@1,[50,97.29,97.29]@4)'
     ref = [[
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