Configurable vitest coverage reportsDirectory (currently not configurable)

[StefanMuellerCH]

Command

test

Description

We are using Angular 21. Currently, there are several options in angular.json to configure vitest-outputs but there is no option to configure the test.coverage.reportsDirectory in angular.json.

Configuring the test.coverage.reportsDirectory in a vitest.config.ts file like below does not work either, as angular overwrites the coverage-reports-directory path when calling vitest. The explicitly configured vitest-config option is ignore.

import {defineConfig} from 'vitest/config'
export default defineConfig({
  test: {
    coverage: {
      provider: 'v8',
      reporter: ['lcov'],
      reportsDirectory: '.target/coverage' // This option is ignored as Angular passes the path when calling vitest!
    }
  }
})

Describe the solution you'd like

There are 2 possible solutions that would fit:

A) Provide an option in angular.json to specifiy the coverageReportsDirectory - This would be in-line with the already existing options like reporters, coverageReporters and more.

B) Angular should not pass the test.coverage.reportsDirectory to vitest if apps configured an explicit vitest.config.ts file with explicit configured reportsDirectory. Explicit configs should win over implicit configs.

Describe alternatives you've considered

No response