Function prepare

packages/browser/src/client/tester/tester.ts:230–257

(options: PrepareOptions)

}

async function prepare(options: PrepareOptions) {
  preparedData = await prepareTestEnvironment(options)

  // page is reloading
  debug?.('runner resolved successfully')

  const { config, state } = preparedData

  state.durations.prepare = performance.now() - state.durations.prepare

  debug?.('prepare time', state.durations.prepare, 'ms')

  await Promise.all([
    setupCommonEnv(config),
    startCoverageInsideWorker(config.coverage, moduleRunner, { isolate: config.browser.isolate }),
    (async () => {
      const VitestIndex = await import('vitest')
      Object.defineProperty(window, '__vitest_index__', {
        value: VitestIndex,
        enumerable: false,
      })
    })(),
  ])

  if (!config.browser.trackUnhandledErrors) {
    getBrowserState().disposeExceptionTracker()
  }
}

async function cleanup() {
  const state = getWorkerState()