From 60eb2389a370341028882d3e6cf18615d29acfdb Mon Sep 17 00:00:00 2001
From: Hornwitser <code@hornwitser.no>
Date: Tue, 10 Mar 2026 02:19:01 +0100
Subject: [PATCH] Test every ASCII character in prometheus test

The a and A felt lonely being the only letters included. Add the other
letters in the ASCII character set as there was no good reason to leave
them out.
---
 test/lib/prometheus.js | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/test/lib/prometheus.js b/test/lib/prometheus.js
index ade1b09f..8ef24147 100644
--- a/test/lib/prometheus.js
+++ b/test/lib/prometheus.js
@@ -653,12 +653,11 @@ describe("lib/prometheus", function() {
 				);
 
 				let labelValue = "";
+				// Include every ASCII codepoint
 				for (let i = 0; i < 128; i++) {
-					const char = String.fromCodePoint(i);
-					if (!/[1-9B-Zb-z]/.test(char)) { // exclude boring characters
-						labelValue += char;
-					}
+					labelValue += String.fromCodePoint(i);
 				}
+				// Include Unicode codepoints from the basic and supplementary planes.
 				labelValue += "©💣";
 
 				gauge.labels(labelValue, "2");