docs: use sse instead of websocket for ruletest

Signed-off-by: Jiyong Huang <huangjy@emqx.io>

Author: ngjaying

docs/en_US/api/restapi/ruletest.md

@@ -10,16 +10,16 @@ and it will automatically stop and clear after the time is exceeded. The general
 follows:
 
 1. [Create a test rule](#create-a-test-rule), get the id and port of the test rule.
-2. Use the id and port of the test rule to connect and listen to the WebSocket service. Its service address
+3. Use the id and port of the test rule to connect and listen to the SSE service. Its service address
    is `http://locahost:10081/test/myid` where `10081` is the port value returned in step 1, and myid is the id of the
-   test rule.
+   test rule. Server-Sent Events (SSE) allows the server to push updates to the client. Connect via HTTP GET with header `Accept: text/event-stream`.
 3. [Start the test rule](#start-the-test-rule), wait for the test rule to run. The rule running result will be returned
-   through the WebSocket service.
-4. After the rule trial run ends, [delete the test rule](#delete-the-test-rule), and close the WebSocket service.
+   through the SSE service.
+4. After the rule trial run ends, [delete the test rule](#delete-the-test-rule), and close the SSE service.
 
 ::: tip
 
-The WebSocket service defaults to port 10081, which can be modified by the `httpServerPort` field in the `kuiper.yaml`
+The SSE service defaults to port 10081, which can be modified by the `httpServerPort` field in the `kuiper.yaml`
 configuration file. Before using the test rule, please make sure that this port is accessible.
 
 :::
@@ -93,7 +93,7 @@ If created successfully, the return example is as follows:
 }
 ```
 
-After the rule is created successfully, the websocket endpoint starts. Users can listen to the websocket
+After the rule is created successfully, the SSE endpoint starts. Users can listen to the SSE
 address `http://locahost:10081/test/uuid` to get the result output. Among them, the port and id are the above return
 values.
 
@@ -111,12 +111,12 @@ If creation fails, the status code is 400, return error information, an example
 POST /ruletest/{id}/start
 ```
 
-Start the trial run rule, WebSocket will be able to receive the data output after the rule runs.
+Start the trial run rule, SSE will be able to receive the data output after the rule runs.
 
 ## Delete the Test Rule
 
 ```shell
 DELETE /ruletest/{id}
 ```
 
-Delete the trial run rule, WebSocket will stop the service.
+Delete the trial run rule, SSE will stop the service.

docs/zh_CN/api/restapi/ruletest.md

@@ -7,14 +7,14 @@
 10 分钟），超过时间后会自动停止并清除。使用规则试运行的一般步骤如下：
 
 1. [创建测试规则](#创建测试规则)，获得测试规则的 id 和端口。
-2. 使用测试规则的 id 和端口，连接并监听 WebSocket 服务。其服务地址为 `http://locahost:10081/test/myid` 其中 `10081` 为步骤1
-   返回的端口值，myid 为测试规则的 id。
-3. [启动测试规则](#启动测试规则)，等待测试规则运行。规则运行结果将通过 WebSocket 服务返回。
-4. 规则试运行结束后，[删除测试规则](#删除测试规则)，关闭 WebSocket 服务。
+2. 使用测试规则的 id 和端口，连接并监听 SSE 服务。其服务地址为 `http://locahost:10081/test/myid` 其中 `10081` 为步骤1
+   返回的端口值，myid 为测试规则的 id。Server-Sent Events (SSE) 允许服务器向客户端推送更新。请使用带有请求头 `Accept: text/event-stream` 的 HTTP GET 请求进行连接。
+3. [启动测试规则](#启动测试规则)，等待测试规则运行。规则运行结果将通过 SSE 服务返回。
+4. 规则试运行结束后，[删除测试规则](#删除测试规则)，关闭 SSE 服务。
 
 ::: tip
 
-WebSocket 服务默认采用 10081 端口，可通过配置文件 `kuiper.yaml` 中的 `httpServerPort` 字段修改。使用测试规则前，请确保该端口可访问。
+SSE 服务默认采用 10081 端口，可通过配置文件 `kuiper.yaml` 中的 `httpServerPort` 字段修改。使用测试规则前，请确保该端口可访问。
 
 :::
 
@@ -84,7 +84,7 @@ POST /ruletest
 }
 ```
 
-规则创建成功后，websocket endpoint 启动。用户可通过监听 websocket 地址 `http://locahost:10081/test/uuid` 获取结果输出。其中，端口和
+规则创建成功后，SSE endpoint 启动。用户可通过监听 SSE 地址 `http://locahost:10081/test/uuid` 获取结果输出。其中，端口和
 id 为上述返回值。
 
 若创建失败，状态码为 400，返回错误信息，示例如下：
@@ -101,12 +101,12 @@ id 为上述返回值。
 POST /ruletest/{id}/start
 ```
 
-启动试运行规则，WebSocket 将可接收到规则运行后输出的数据。
+启动试运行规则，SSE 将可接收到规则运行后输出的数据。
 
 ## 删除测试规则
 
 ```shell
 DELETE /ruletest/{id}
 ```
 
-删除试运行规则，WebSocket 将停止服务。
+删除试运行规则，SSE 将停止服务。