handle values contain +

Signed-off-by: yeya24 <[email protected]>
cortexproject · Jan 29, 2025 · aa3edb0 · aa3edb0
1 parent eaf3e57
commit aa3edb0
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/walk.go b/walk.go
@@ -462,6 +462,11 @@ func (s *PromQLSmith) walkLabelMatchers() []*labels.Matcher {
 	})
 
 	valF := func(v string) string {
+		// If a label value contains + such as +Inf it will cause parse error for regex.
+		// Always hardcode to .+ for simplicity.
+		if strings.Contains(v, "+") {
+			return ".+"
+		}
 		val := s.rnd.Float64()
 		switch {
 		case val > 0.95: