@app.get("/items/")
async def read_items(commons: Annotated[CommonQueryParams, Depends(CommonQueryParams)]):
    response = {}
    if commons.q:
        response.update({"q": commons.q})
    items = fake_items_db[commons.skip : commons.skip + commons.limit]
    response.update({"items": items})

        buildString {
          append("<-- ${response.code}")
          if (response.message.isNotEmpty()) append(" ${response.message}")
          append(" ${redactUrl(response.request.url)} (${tookMs}ms")
          if (!logHeaders) append(", $bodySize body")
          append(")")
        },
      )

      if (logHeaders) {
        val headers = response.headers
        for (i in 0 until headers.size) {

  private fun writeHttpResponse(
    socket: Socket,
    sink: BufferedSink,
    response: MockResponse,
  ) {
    sleepNanos(response.headersDelayNanos)
    sink.writeUtf8(response.status)
    sink.writeUtf8("\r\n")

    writeHeaders(sink, response.headers)

    val body = response.body ?: return
    sleepNanos(response.bodyDelayNanos)
    val responseBodySink =
      sink.withThrottlingAndSocketPolicy(

    }

    /**
     * Returns the LanManager/LMv2 response.
     *
     * @return A <code>byte[]</code> containing the LanManager response.
     */
    public byte[] getLMResponse() {
        return lmResponse;
    }

    /**
     * Sets the LanManager/LMv2 response for this message.
     *
     * @param lmResponse The LanManager response.
     */
    public void setLMResponse(byte[] lmResponse) {

received followed by a cache hit or miss.  Critically in the cache hit scenario the server won’t send the response body.

The response will have non-null `cacheResponse` and `networkResponse`. The cacheResponse will be used as the top level
response only if the response code is HTTP/1.1 304 Not Modified.
 
 - CallStart
 - **CacheConditionalHit**
 - ConnectionAcquired
 - ... Standard Events...

    return result
  }

  override fun peek(): MockResponse {
    return responseQueue.peek() ?: failFastResponse ?: super.peek()
  }

  open fun enqueueResponse(response: MockResponse) {
    responseQueue.add(response)
  }

  open fun clear() {
    responseQueue.clear()
  }

  override fun shutdown() {
    responseQueue.add(DEAD_LETTER)
  }

  open fun setFailFast(failFast: Boolean) {

client = TestClient(app)


def test_post_item():
    response = client.post("/items/", json={"name": "Foo", "price": 3})
    assert response.status_code == 200
    assert response.json() == {
        "name": "Foo",
        "price": 3,
        "description": None,
        "tax": None,
    }


def test_post_invalid_item():
    response = client.post("/items/", json={"name": "Foo", "price": "invalid price"})

`User-Agent`, `Host`, `Connection`, and `Content-Type`. It will add an `Accept-Encoding` header for transparent response compression unless the header is already present. If you’ve got cookies, OkHttp will add a `Cookie` header with them.

Some requests will have a cached response. When this cached response isn’t fresh, OkHttp can do a _conditional GET_ to download an updated response if it’s newer than what’s cached. This requires headers like `If-Modified-Since` and `If-None-Match` to be added....

@app.get("/items/{item_id}")
async def read_items(item_id: str):
    return items[item_id]


def test_read_items():
    with TestClient(app) as client:
        response = client.get("/items/foo")
        assert response.status_code == 200

    )
    serverIpv6.enqueue(
      MockResponse(body = "hello from IPv6"),
    )

    val call = client.newCall(Request(url))
    val response = call.execute()
    assertThat(response.body.string()).isEqualTo("hello from IPv6")

    // In the process we made one successful connection attempt.
    assertThat(listener.recordedEventTypes().filter { it == "ConnectStart" }).hasSize(1)