assertThat(handshake.peerCertificates.size).isEqualTo(1)
  }

  @Test
  fun shutdownTwice() {
    val server2 = MockWebServer()
    server2.start()
    server2.shutdown()
    try {
      server2.start()
      fail<Any>()
    } catch (expected: IllegalStateException) {
      // expected
    }
    server2.shutdown()
  }

  }

  @Test
  fun startTwice() {
    val server2 = MockWebServer()
    server2.start()
    server2.start()
    server2.shutdown()
  }

  @Test
  fun shutdownTwice() {
    val server2 = MockWebServer()
    server2.start()
    server2.shutdown()
    try {
      server2.start()
      fail<Unit>()
    } catch (expected: IllegalStateException) {
      // Expected.
    }