when(readRequest.getTreeId()).thenReturn(123); // Set consistent tree ID for affinity

        when(mockChannelManager.getHealthyChannels()).thenReturn(Arrays.asList(channel1, channel2));

        // Multiple calls with same file ID should return same channel
        ChannelInfo first = loadBalancer.selectChannel(readRequest);
        ChannelInfo second = loadBalancer.selectChannel(readRequest);

        assertEquals(first, second);

如果你的應用仰賴 lifespan 事件，`AsyncClient` 不會觸發這些事件。若要確保它們被觸發，請使用 [florimondmanca/asgi-lifespan](https://github.com/florimondmanca/asgi-lifespan#usage) 的 `LifespanManager`。

///

## 其他非同步函式呼叫 { #other-asynchronous-function-calls }

由於測試函式現在是非同步的，你也可以在測試中呼叫（並 `await`）其他 `async` 函式，和在程式碼其他地方一樣。

/// tip

	_, err := objAPI.DeleteObject(ctx, minioMetaBucket, historyFile, ObjectOptions{
		DeletePrefix:       true,
		DeletePrefixObject: true, // use prefix delete on exact object (this is an optimization to avoid fan-out calls)
	})
	return err
}

func readServerConfigHistory(ctx context.Context, objAPI ObjectLayer, uuidKV string) ([]byte, error) {
	historyFile := pathJoin(minioConfigHistoryPrefix, uuidKV+kvPrefix)

		return err
	}

	oa := Args(so)
	if oa.URL == nil || oa.URL.String() == "" {
		*a = oa
		return nil
	}

	*a = oa
	return nil
}

// Opa - implements opa policy agent calls.
type Opa struct {
	args   Args
	client *http.Client
}

// Enabled returns if opa is enabled.
func Enabled(kvs config.KVS) bool {
	return kvs.Get(URL) != ""
}

configured to fall back for broad connectivity.

Using OkHttp is easy. Its request/response API is designed with fluent builders and immutability. It
supports both synchronous blocking calls and async calls with callbacks.

A well behaved user agent
-------------------------

OkHttp follows modern HTTP specifications such as

* HTTP Semantics - [RFC 9110](https://datatracker.ietf.org/doc/html/rfc9110)

        assertTrue(ntlmConnection.getInstanceFollowRedirects());
        assertEquals("application/json", ntlmConnection.getRequestProperty("Accept"));
    }

    /**
     * Test that connect() calls connect() on the underlying connection.
     * @throws IOException
     */
    @Test
    void testConnect() throws Exception {
        // Act
        ntlmConnection.connect();

        // Assert

The process that happens when your API app calls the *external API* is named a "callback". Because the software that the external developer wrote sends a request to your API and then your API *calls back*, sending a request to an *external API* (that was probably created by the same developer).

    instance := grid.NewSingleHandler[*grid.MSS, *grid.MSS](h, grid.NewMSS, grid.NewMSS)

    // Register the handler on the manager
    instance.Register(manager, handler)

    // The typed instance is also used for calls
    conn := manager.Connection("host")
    resp, err := instance.Call(ctx, conn, grid.NewMSSWith(map[string]string{"myfield": "myvalue"}))
    if err == nil {
        fmt.Println("Got response with field", resp["result"])

display: block;\n  width: 100%;\n}\n\n.col-form-label {\n  padding-top: calc(0.375rem + 1px);\n  padding-bottom: calc(0.375rem + 1px);\n  margin-bottom: 0;\n  font-size: inherit;\n  line-height: 1.5;\n}\n\n.col-form-label-lg {\n  padding-top: calc(0.5rem + 1px);\n  padding-bottom: calc(0.5rem + 1px);\n  font-size: 1.25rem;\n  line-height: 1.5;\n}\n\n.col-form-label-sm {\n  padding-top: calc(0.25rem + 1px);\n  padding-bottom: calc(0.25rem + 1px);\n  font-size: 0.875rem;\n  line-height: 1.5;\n}\n\n.f...

   * That is, the first call to {@link #nextIndex()} will return {@code position}, and the first
   * call to {@link #next()} will return the element at that index, if available. Calls to {@link
   * #previous()} can retrieve the preceding {@code position} elements.
   *
   * @throws IndexOutOfBoundsException if {@code position} is negative or is greater than {@code
   *     size}