test: failing test case for benchmark's duplicate test reporting

test/benchmark/fixtures/reporter/multiple.bench.ts

@@ -0,0 +1,12 @@
+import { bench, describe } from 'vitest'
+import { setTimeout } from 'node:timers/promises'
+
+const options = { iterations: 1, warmupIterations: 1 }
+
+bench('first', async () => {
+  await setTimeout(500)
+}, options)
+
+bench('second', async () => {
+  await setTimeout(500)
+}, options)

test/benchmark/test/reporter.test.ts

@@ -1,5 +1,7 @@
+import type { RunnerTestCase } from 'vitest'
 import * as pathe from 'pathe'
 import { assert, expect, it } from 'vitest'
+import { TaskParser } from 'vitest/src/node/reporters/task-parser.js'
 import { runVitest } from '../../test-utils'
 
 it('summary', async () => {
@@ -33,6 +35,30 @@ it('non-tty', async () => {
   }
 })
 
+it('reports passed tasks just once', async () => {
+  const passed: string[] = []
+
+  class CustomReporter extends TaskParser {
+    onTestFinished(_test: RunnerTestCase): void {
+      passed.push(_test.name)
+    }
+  }
+
+  await runVitest({
+    root: pathe.join(import.meta.dirname, '../fixtures/reporter'),
+    benchmark: {
+      reporters: new CustomReporter(),
+    },
+  }, ['multiple.bench.ts'], 'benchmark')
+
+  expect(passed).toMatchInlineSnapshot(`
+    [
+      "first",
+      "second",
+    ]
+  `)
+})
+
 it.for([true, false])('includeSamples %s', async (includeSamples) => {
   const result = await runVitest(
     {