feat: enlarge max test steps limit

src/editors/TestGenerationPanel.ts

@@ -23,6 +23,7 @@
 import { fetchApps } from '../api/llm/http';
 
 const MAX_HISTORY_LEN = 100;
+const MAX_TEST_STEPS = 40;
 
 export class TestGenerationPanel {
   public static currentPanel: TestGenerationPanel | undefined;
@@ -281,7 +282,7 @@
    */
   private _setWebviewMessageListener(webview: Webview) {
     webview.onDidReceiveMessage(
       async (message: any) => {
         switch (message.action) {
           case 'ready':
             this._msgQueue.ready();
@@ -525,9 +526,9 @@
       );
     }
 
-    if (maxTestSteps < 1 || maxTestSteps > 20) {
+    if (maxTestSteps < 1 || maxTestSteps > MAX_TEST_STEPS) {
       throw new Error(
-        'Invalid number of test steps. Please enter a value between 1 and 20.',
+        `Invalid number of test steps. Please enter a value between 1 and ${MAX_TEST_STEPS}.`,
       );
     }
 
@@ -595,7 +596,7 @@
 }
 
 class MessageQueue {
   private _messages: any[];
   private _ready: boolean;
   private _webview: Webview;
 
@@ -605,7 +606,7 @@
     this._webview = webview;
   }
 
   enqueue(msg: any) {
     if (!this._ready) {
       this._messages.push(msg);
       return;