fun testDnsRequestInvalid() {
    val (allAddresses, exception) = dnsQuery("google.invalid")

    assertThat(exception).isNull()
    assertThat(allAddresses).isEmpty()
  }

  @Test
  fun testRequestOnNetwork() {
    assumeNetwork()

    val context = InstrumentationRegistry.getInstrumentation().context
    val connectivityManager =
      context.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager