From 6398d4a19368e9585ebca9a633917fb77d1d187a Mon Sep 17 00:00:00 2001
From: Jeffery <h3285@evertrust.com.tw>
Date: Tue, 23 Jun 2026 16:36:25 +0800
Subject: [PATCH] =?UTF-8?q?test(ai-review=20=E4=BD=BF=E7=94=A8=E9=87=8F):?=
 =?UTF-8?q?=20=E8=A3=9C=20formatUsageStatsLine=20=E5=B0=8D=20NaN/=E7=95=B0?=
 =?UTF-8?q?=E5=B8=B8=E6=95=B8=E5=AD=97=E8=BC=B8=E5=87=BA=E5=AE=89=E5=85=A8?=
 =?UTF-8?q?=E6=96=87=E5=AD=97=E6=B8=AC=E8=A9=A6?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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---
 app/usage.test.js | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/app/usage.test.js b/app/usage.test.js
index e0785b1..aa79008 100644
--- a/app/usage.test.js
+++ b/app/usage.test.js
@@ -244,4 +244,13 @@ describe('formatUsageStatsLine', () => {
     const line = formatUsageStatsLine('ollama', 'llama3', usage, { available: false, reason: '本地服務，無帳號額度概念' }, { hasData: false });
     assert.match(line, /；剩餘可用: 無法計算（本地服務，無帳號額度概念）/);
   });
+
+  it('produces safe text (no NaN) when quota/rate carry invalid numbers', () => {
+    // quota.limit 為 NaN、rate.limit 為 NaN → 不應算出百分比、不得輸出 NaN
+    const line = formatUsageStatsLine('openai', 'm', usage,
+      { available: true, used: 5, limit: NaN, currency: 'USD' },
+      { hasData: true, remaining: NaN, limit: NaN, kind: 'tokens' });
+    assert.doesNotMatch(line, /NaN/);
+    assert.match(line, /剩餘可用: 無法計算/);
+  });
 });