assert200Http2Response(execute(url), server.hostName)
    val sanUrl = url.newBuilder().host("san.com").build()
    assert200Http2Response(execute(sanUrl), "san.com")
    assertThat(client.connectionPool.connectionCount()).isEqualTo(1)
  }

  /**
   * Test connecting to an alternative host then common name, although only subject alternative
   * names are used if present no special consideration of common name.
   */

      connectionPool.evictAll()
      if (connectionPool.connectionCount() > 0) {
        // Minimise test flakiness due to possible race conditions with connections closing.
        // Some number of tests will report here, but not fail due to this delay.
        println("Delaying to avoid flakes")
        Thread.sleep(500L)
        println("After delay: " + connectionPool.connectionCount())
      }

      connectionPool.evictAll()

    require(keepAliveDuration > 0L) { "keepAliveDuration <= 0: $keepAliveDuration" }
  }

  fun idleConnectionCount(): Int =
    connections.count {
      it.withLock { it.calls.isEmpty() }
    }

  fun connectionCount(): Int = connections.size

  /**
   * Attempts to acquire a recycled connection to [address] for [call]. Returns the connection if it

    var connectionPool = ConnectionPool()
    connectionPool = ConnectionPool(0, 0L, TimeUnit.SECONDS)
    val idleConnectionCount: Int = connectionPool.idleConnectionCount()
    val connectionCount: Int = connectionPool.connectionCount()
    connectionPool.evictAll()
  }

  @Test
  fun connectionSpec() {
    var connectionSpec: ConnectionSpec = ConnectionSpec.RESTRICTED_TLS
    connectionSpec = ConnectionSpec.MODERN_TLS

    client.newCall(request).execute().use { response ->
      assertEquals(200, response.code)
    }

    client.connectionPool.evictAll()
    assertEquals(0, client.connectionPool.connectionCount())

    client.newCall(request).execute().use { response ->
      assertEquals(200, response.code)
    }

    assertEquals(2, sessionIds.size)
    assertEquals(sessionIds[0], sessionIds[1])
  }