message: test(config): adds a unit test for stringify content
diff: @@ -108,6 +108,11 @@ Array [
  `)
  })
  + it('should return stringified version of file', () => {
  + config.shouldStringifyContent.mockImplementation(() => true)
  + expect(process()).toMatchInlineSnapshot(`"ts:module.exports=\\"export default \\\\\\"foo\\\\\\"\\""`)
  + })
  +
  it('should not pass the instrument option to babel-jest', () => {
  args[3] = { instrument: true }
  expect(process()).toBe(`babel:ts:${INPUT}`)
  