test: use mock agent for openai test to prevent network calls

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: maxholman

__tests__/openai.test.ts

@@ -1,15 +1,48 @@
-import { expect, test } from "vitest";
+import { MockAgent, setGlobalDispatcher } from "undici";
+import { afterAll, beforeAll, describe, expect, test } from "vitest";
 import { CreateModerationCommand } from "./fixtures/openai/commands.ts";
 import { OpenAiApiRestClient } from "./fixtures/openai/main.ts";
 
-test("OpenAI CreateModeration", async () => {
-	const openAiClient = new OpenAiApiRestClient(new URL("http://invalid"));
+const mockAgent = new MockAgent();
+setGlobalDispatcher(mockAgent);
 
-	const command = new CreateModerationCommand({
-		input: "This is a test",
-	});
+beforeAll(() => {
+	mockAgent.activate();
+	mockAgent.disableNetConnect();
+});
+
+afterAll(() => {
+	mockAgent.assertNoPendingInterceptors();
+});
+
+const apiUrl = "http://192.2.0.1";
 
-	const result = await openAiClient.json(command).catch((err) => err);
+describe("OpenAI", () => {
+	const pool = mockAgent.get(apiUrl);
 
-	expect(result).toBeTruthy();
+	pool
+		.intercept({
+			path: "/moderations",
+			method: "POST",
+		})
+		.reply(200, {
+			id: "modr-123",
+			model: "text-moderation-latest",
+			results: [],
+		})
+		.times(1);
+
+	test("CreateModeration", async () => {
+		const openAiClient = new OpenAiApiRestClient(apiUrl, {
+			logger: console.debug,
+		});
+
+		const command = new CreateModerationCommand({
+			input: "This is a test",
+		});
+
+		const result = await openAiClient.json(command);
+
+		expect(result).toBeTruthy();
+	});
 });