Function assertDefined

test/production/graceful-shutdown/index.test.ts:23–25

(value: T | void)

let app: Awaited<ReturnType<typeof launchApp>>

function assertDefined<T>(value: T | void): asserts value is T {
  expect(value).toBeDefined()
}

describe('Graceful Shutdown', () => {
  describe('development (next dev)', () => {