From e8a361210d743f9cb1ff7e65ff0b7cd242ca477f Mon Sep 17 00:00:00 2001
From: Tanner Collin <git@tannercollin.com>
Date: Sat, 14 Mar 2026 17:04:51 -0600
Subject: [PATCH] test: Correct infinity string comparison in checkDisplay

Co-authored-by: aider (gemini/gemini-2.5-pro) <aider@aider.chat>
---
 calculator/test.js | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/calculator/test.js b/calculator/test.js
index 41323f9..44d49e1 100644
--- a/calculator/test.js
+++ b/calculator/test.js
@@ -119,7 +119,12 @@ function press(buttons) {
 }
 
 function checkDisplay(expected, message) {
-  const expectedStr = String(expected);
+  let expectedStr = String(expected);
+  if (expected === Infinity) {
+    expectedStr = 'INF';
+  } else if (expected === -Infinity) {
+    expectedStr = '-INF';
+  }
 
   // attempt a numeric comparison for float-related issues
   const expectedNum = parseFloat(expectedStr.replace(/,/g, ''));