From b8a5386d4e377ec750f905a6edf537019dd58a14 Mon Sep 17 00:00:00 2001
From: Lukasz Mierzwa <l.mierzwa@gmail.com>
Date: Fri, 14 Feb 2025 15:46:37 +0000
Subject: [PATCH] Add a test for aggregation wrapped in ParenExpr

Signed-off-by: Lukasz Mierzwa <l.mierzwa@gmail.com>
---
 promql/parser/parse_test.go | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/promql/parser/parse_test.go b/promql/parser/parse_test.go
index 3445fce067..14af0b16ae 100644
--- a/promql/parser/parse_test.go
+++ b/promql/parser/parse_test.go
@@ -3947,6 +3947,26 @@ var testExpr = []struct {
 			},
 		},
 	},
+	{
+		input: "(sum(foo))",
+		expected: &ParenExpr{
+			Expr: &AggregateExpr{
+				Op: SUM,
+				Expr: &VectorSelector{
+					Name: "foo",
+					LabelMatchers: []*labels.Matcher{
+						MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
+					},
+					PosRange: posrange.PositionRange{
+						Start: 5,
+						End:   8,
+					},
+				},
+				PosRange: posrange.PositionRange{Start: 1, End: 9},
+			},
+			PosRange: posrange.PositionRange{Start: 0, End: 10},
+		},
+	},
 }
 
 func makeInt64Pointer(val int64) *int64 {