From 171bbd1a8cb1b114bb23e4662199d0eb508fb347 Mon Sep 17 00:00:00 2001
From: Hiroshi Ogawa <4232207+hi-ogawa@users.noreply.github.com>
Date: Thu, 22 Oct 2026 15:53:56 +0900
Subject: [PATCH] feat: label repeats without retry index in failure header

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---
 packages/vitest/src/node/reporters/base.ts | 23 +++++++++-------------
 test/e2e/test/retry.test.ts                | 17 ++++++++++++++++
 2 files changed, 26 insertions(+), 14 deletions(-)

diff --git a/packages/vitest/src/node/reporters/base.ts b/packages/vitest/src/node/reporters/base.ts
index 2c49039ab..de4e3e067 100644
--- a/packages/vitest/src/node/reporters/base.ts
+++ b/packages/vitest/src/node/reporters/base.ts
@@ -1562,20 +1562,15 @@ export abstract class BaseReporter implements Reporter {
 function formatErrorAttempts(task: Task, attempts: (TaskResultAttempt | undefined)[]): string {
   const maxRetries = typeof task.retry === 'number' ? task.retry : (task.retry?.count ?? 0)
   return [...Map.groupBy(attempts, (attempt) => attempt)]
-    .map(([attempt, occurrences]) => {
-      const parts: string[] = []
-      if (attempt && (maxRetries || task.repeats)) {
-        parts.push(
-          task.repeats
-            ? `repeat ${attempt.repeatIndex} retry ${attempt.retryIndex}`
-            : `retry ${attempt.retryIndex}`,
-        )
-      }
-      if (occurrences.length > 1) {
-        parts.push(`x${occurrences.length}`)
-      }
-      return parts.join(' ')
-    })
+    .map(([attempt, occurrences]) =>
+      [
+        attempt && task.repeats && `repeat ${attempt.repeatIndex}`,
+        attempt && maxRetries && `retry ${attempt.retryIndex}`,
+        occurrences.length > 1 && `x${occurrences.length}`,
+      ]
+        .filter(Boolean)
+        .join(' '),
+    )
     .filter(Boolean)
     .join(', ')
 }
diff --git a/test/e2e/test/retry.test.ts b/test/e2e/test/retry.test.ts
index 53ba92bfa..1234b8432 100644
--- a/test/e2e/test/retry.test.ts
+++ b/test/e2e/test/retry.test.ts
@@ -393,6 +393,23 @@ describe('failure summary header', () => {
     `)
   })
 
+  test('labels repeats without retry', async () => {
+    const { stderr } = await runInlineTests({
+      'basic.test.js': `
+        import { expect, test } from 'vitest'
+
+        test('repeated', { repeats: 1 }, () => {
+          expect(1).toBe(2)
+        })
+      `,
+    })
+
+    expect(extractFailureHeaders(stderr)).toMatchInlineSnapshot(`
+      " FAIL  basic.test.js > repeated (repeat 0, repeat 1)
+      AssertionError: expected 1 to be 2 // Object.is equality"
+    `)
+  })
+
   test('prints headers for soft errors repeated within an attempt', async () => {
     const { stderr } = await runInlineTests({
       'basic.test.js': `
-- 
2.54.0