Angular runnerConfig not reading my vitest coverage report generation config

[XHicoRVI]

Command

test

Is this a regression?

• Yes, this behavior used to work in the previous version

The previous version in which this bug was not present was

No response

Description

Dependancies
"@vitest/browser-webdriverio": "4.1.10",
"@vitest/coverage-istanbul": "4.1.10",

My angular.json

"test": {
"builder": "@angular/build:unit-test",
"options": {
"browsers": ["chrome", "firefox"],
"buildTarget": "dashboard:build",
"runnerConfig": "vitest-base.config.ts"
}
},

My vitest config file "vitest-base.config.ts"

import { defineConfig } from 'vitest/config';

export default defineConfig({
test: {
coverage: {
provider: 'istanbul',
reportOnFailure: true,
},
reporters: ['junit'],
outputFile: {
junit: 'test/junit-report.xml',
},
},
});

the problem

When I run the command ng test --watch=false --coverage --browsers=firefoxHeadless
The test excecute as expected without failure but there is no folder test nor file junit-report.xml but a folder coverage and the html application of the report (default angular settings).

I think that vitest-base.config.ts is never read.

Minimal Reproduction

Added these dependancies
"@vitest/browser-webdriverio": "4.1.10",
"@vitest/coverage-istanbul": "4.1.10",

angular.json :

"test": {
"builder": "@angular/build:unit-test",
"options": {
"browsers": ["chrome", "firefox"],
"buildTarget": "dashboard:build",
"runnerConfig": "vitest-base.config.ts"
}
},

vitest-base.config.ts :

import { defineConfig } from 'vitest/config';

export default defineConfig({
test: {
coverage: {
provider: 'istanbul',
reportOnFailure: true,
},
reporters: ['junit'],
outputFile: {
junit: 'test/junit-report.xml',
},
},
});

the command

run ng test --watch=false --coverage --browsers=firefoxHeadless

Exception or Error

Your Environment

_                      _                 ____ _     ___
    / \   _ __   __ _ _   _| | __ _ _ __     / ___| |   |_ _|
   / △ \ | '_ \ / _` | | | | |/ _` | '__|   | |   | |    | |
  / ___ \| | | | (_| | |_| | | (_| | |      | |___| |___ | |
 /_/   \_\_| |_|\__, |\__,_|_|\__,_|_|       \____|_____|___|
                |___/
    

Angular CLI       : 22.0.6
Angular           : 22.0.6
Node.js           : 24.18.0
Package Manager   : npm 11.16.0
Operating System  : win32 x64

┌───────────────────────────┬───────────────────┬───────────────────┐
│ Package                   │ Installed Version │ Requested Version │
├───────────────────────────┼───────────────────┼───────────────────┤
│ @angular/build            │ 22.0.6            │ 22.0.6            │
│ @angular/cdk              │ 22.0.4            │ 22.0.4            │
│ @angular/cli              │ 22.0.6            │ 22.0.6            │
│ @angular/common           │ 22.0.6            │ 22.0.6            │
│ @angular/compiler         │ 22.0.6            │ 22.0.6            │
│ @angular/compiler-cli     │ 22.0.6            │ 22.0.6            │
│ @angular/core             │ 22.0.6            │ 22.0.6            │
│ @angular/forms            │ 22.0.6            │ 22.0.6            │
│ @angular/language-service │ 22.0.6            │ 22.0.6            │
│ @angular/material         │ 22.0.4            │ 22.0.4            │
│ @angular/platform-browser │ 22.0.6            │ 22.0.6            │
│ @angular/router           │ 22.0.6            │ 22.0.6            │
│ rxjs                      │ 7.8.2             │ 7.8.2             │
│ typescript                │ 6.0.3             │ 6.0.3             │
│ vitest                    │ 4.1.10            │ 4.1.10            │
└───────────────────────────┴───────────────────┴───────────────────┘

Anything else relevant?

No response