diff --git a/parser_test.go b/parser_test.go
index 9e2f4ee..e75f0a3 100644
--- a/parser_test.go
+++ b/parser_test.go
@@ -159,6 +159,7 @@ func TestGeneralParser(t *testing.T) {
 		/* 138 */ {`v=10; v++; v`, int64(11), nil},
 		/* 139 */ {`1+1|2+0.5`, float64(2), nil},
 		/* 140 */ {`1.2()`, newFraction(6, 5), nil},
+		/* 141 */ {`1|(2-2)`, nil, errors.New(`division by zero`)},
 	}
 
 	// t.Setenv("EXPR_PATH", ".")