fix: mock fetch to prevent actual API calls

Co-Authored-By: Han Xiao <[email protected]>

src/tools/__tests__/evaluator.test.ts

@@ -66,6 +66,22 @@ jest.mock('@ai-sdk/google', () => ({
   GoogleChatLanguageModel: jest.fn()
 }));
 
+// Mock fetch to prevent actual API calls
+const mockFetch = jest.fn().mockResolvedValue({
+  ok: true,
+  json: () => Promise.resolve({
+    choices: [{
+      message: {
+        function_call: {
+          arguments: JSON.stringify(mockEvalResponse)
+        }
+      }
+    }]
+  })
+});
+
+global.fetch = mockFetch;
+
 // Mock OpenAI API
 jest.mock('@ai-sdk/openai', () => ({
   OpenAIChatLanguageModel: jest.fn().mockImplementation(() => ({
@@ -76,14 +92,6 @@ jest.mock('@ai-sdk/openai', () => ({
   }))
 }));
 
-// Mock response handler to prevent API calls
-jest.mock('@ai-sdk/provider-utils/src/response-handler', () => ({
-  handleResponse: jest.fn().mockImplementation(() => ({
-    object: mockEvalResponse,
-    usage: { totalTokens: 0 }
-  }))
-}));
-
 jest.mock('../../utils/token-tracker');
 
 // Mock readUrl to prevent actual API calls