diff --git a/parser_test.go b/parser_test.go
index 0e44b2b..283ae2a 100644
--- a/parser_test.go
+++ b/parser_test.go
@@ -156,6 +156,7 @@ func TestGeneralParser(t *testing.T) {
 		/* 135 */ {`builtin "math.arith"; mul(1|2, 2|3)`, newFraction(2, 6), nil},
 		/* 136 */ {`builtin "math.arith"; mul(1|2, 1.0, 2)`, float64(1.0), nil},
 		/* 137 */ {`builtin "os.file"`, int64(1), nil},
+		/* 138 */ {`v=10; v++; v`, int64(11), nil},
 	}
 
 	// t.Setenv("EXPR_PATH", ".")
@@ -167,20 +168,12 @@ func parserTest(t *testing.T, section string, inputs []inputType) {
 	succeeded := 0
 	failed := 0
 
-	// inputs1 := []inputType{
-	// 	/* 159 */ {`include "file-reader.expr"; it=$(ds,"int.list"); mul(it)`, int64(12000), nil},
-	// }
-
 	for i, input := range inputs {
 		var expr Expr
 		var gotResult any
 		var gotErr error
 
 		ctx := NewSimpleFuncStore()
-		// ctx.SetVar("var1", int64(123))
-		// ctx.SetVar("var2", "abc")
-		// ImportMathFuncs(ctx)
-		// ImportImportFuncs(ctx)
 		parser := NewParser(ctx)
 
 		logTest(t, i+1, "Iterator", input.source, input.wantResult, input.wantErr)