From 91cdb6c97a4800b6fde27163f32c0728d544dd59 Mon Sep 17 00:00:00 2001
From: Karsten Jeschkies <karsten.jeschkies@grafana.com>
Date: Tue, 14 Nov 2023 10:54:07 +0100
Subject: [PATCH] Ensure parsing a serialized LogQL AST  results in the same
 AST.

---
 pkg/logql/syntax/parser_test.go | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/pkg/logql/syntax/parser_test.go b/pkg/logql/syntax/parser_test.go
index c0c39a7d8f13..b009162bdf6c 100644
--- a/pkg/logql/syntax/parser_test.go
+++ b/pkg/logql/syntax/parser_test.go
@@ -3144,6 +3144,12 @@ func TestParse(t *testing.T) {
 			ast, err := ParseExpr(tc.in)
 			require.Equal(t, tc.err, err)
 			require.Equal(t, tc.exp, ast)
+
+			if err == nil {
+				roundtrip, err := ParseExpr(ast.String())
+				require.NoError(t, err)
+				require.Equal(t, ast, roundtrip)
+			}
 		})
 	}
 }