fix: 질문 음성 PENDING 응답 후 재요청에 최소 1초 간격 적용

src/features/interview-page/interview/model/useQuestionAudio.ts

@@ -4,6 +4,8 @@ import type { QuestionAudioStatus } from "@/widgets/interview-page/interview/typ
 
 const AUDIO_WAIT_MS = 180_000;
 const RETRY_DELAYS_MS = [1_000, 2_000, 4_000];
+// 서버가 long-poll 없이 PENDING을 바로 돌려줘도 요청이 몰리지 않게 하는 최소 간격
+const PENDING_MIN_INTERVAL_MS = 1_000;
 const FAILURE_MESSAGE = "음성 재생에 실패했습니다.";
 
 interface UseQuestionAudioParams {
@@ -81,8 +83,13 @@ export const useQuestionAudio = ({ sessionId, questionId, enabled, autoplay }: U
       await Promise.resolve();
       updateStatus(operation, "loading");
       let errorCount = 0;
+      const wait = (delay: number) => new Promise<void>((resolve) => {
+        releaseRetry = resolve;
+        retryTimer = window.setTimeout(resolve, delay);
+      });
       while (isCurrent(operation)) {
         if (Date.now() - startedAt >= AUDIO_WAIT_MS) { fail(); return; }
+        const requestedAt = Date.now();
         const result = await getQuestionAudio({ sessionId, questionId, signal: controller.signal });
         if (!isCurrent(operation) || ("aborted" in result)) return;
         if (Date.now() - startedAt >= AUDIO_WAIT_MS) { fail(); return; }
@@ -95,14 +102,16 @@ export const useQuestionAudio = ({ sessionId, questionId, enabled, autoplay }: U
           console.warn("질문 음성 조회 실패", result.errorMessage);
           const delay = RETRY_DELAYS_MS[errorCount++];
           if (delay === undefined) { fail(); return; }
-          await new Promise<void>((resolve) => {
-            releaseRetry = resolve;
-            retryTimer = window.setTimeout(resolve, delay);
-          });
+          await wait(delay);
           continue;
         }
         const data = result.data;
-        if (data.status === "PENDING") { errorCount = 0; continue; }
+        if (data.status === "PENDING") {
+          errorCount = 0;
+          const remaining = PENDING_MIN_INTERVAL_MS - (Date.now() - requestedAt);
+          if (remaining > 0) await wait(remaining);
+          continue;
+        }
         window.clearTimeout(deadline);
         if (data.status === "FAILED") {
           console.warn("질문 음성 생성 실패", data.errorCode);

tests/interview-browser-fixture.mjs

@@ -176,7 +176,7 @@ export async function fixture({ multi = false, answerMode = "voice", timeout = f
     if (pathname.endsWith("/me")) return json({ data: { id: 7, name: "테스트", nickname: "테스트" } });
     if (pathname.endsWith("/audio")) {
       const id = Number(pathname.split("/").at(-2));
-      audioRequests.push({ id, wait: requestUrl.searchParams.get("wait"), authorization: request.headers().authorization });
+      audioRequests.push({ id, wait: requestUrl.searchParams.get("wait"), authorization: request.headers().authorization, at: Date.now() });
       const count = audioCounts.get(id) ?? 0;
       audioCounts.set(id, count + 1);
       if (holdAudio && id === 101) await new Promise((resolve) => audioReleases.push(resolve));

tests/question-audio.browser.mjs

@@ -88,6 +88,9 @@ try {
     const f = await fixture({ audioResponses: statuses });
     await stop(f.page).waitFor();
     assert.equal(f.audioRequests.length, 3);
+    for (let i = 1; i < f.audioRequests.length; i++) {
+      assert.ok(f.audioRequests[i].at - f.audioRequests[i - 1].at >= 900, "PENDING 직후 재요청은 최소 간격을 둔다");
+    }
     assert.equal(await plays(f.page), 1);
     await close(f, `${statuses.join(" -> ")}: polling reaches native playback`);
   }