diff --git a/android/util_test.go b/android/util_test.go
index 25b52ca..fa26c77 100644
--- a/android/util_test.go
+++ b/android/util_test.go
@@ -593,6 +593,10 @@
 			name: "map",
 			f:    firstUniqueStringsMap,
 		},
+		{
+			name: "optimal",
+			f:    FirstUniqueStrings,
+		},
 	}
 	const maxSize = 1024
 	uniqueStrings := make([]string, maxSize)