t3-code-android-nightly/.repos/alchemy-effect/packages/alchemy/test/AWS/Polly/Bindings.test.ts

import * as AWS from "@/AWS";
import * as Core from "@/Test/Core";
import * as Test from "@/Test/Alchemy";
import { describe, expect } from "alchemy-test";
import * as Data from "effect/Data";
import * as Effect from "effect/Effect";
import * as Schedule from "effect/Schedule";
import * as HttpClient from "effect/http/HttpClient";
import * as HttpClientRequest from "effect/http/HttpClientRequest";
import PollyTestFunctionLive, {
  BUCKET,
  LEXICON_NAME,
  PollyTestFunction,
} from "./handler.ts";

const testOptions = { providers: AWS.providers() };
const { test, beforeAll, afterAll } = Test.make(testOptions);
const sharedStack = Core.scratchStack(testOptions, "PollyBindings");

// Lambda function URL cold-start (DNS, IAM propagation, init) can take well
// over 60s on a fresh deploy.
const readinessPolicy = Schedule.max([
  Schedule.fixed("2 seconds"),
  Schedule.recurs(75),
]);

let baseUrl: string;

class TransientUpstream extends Data.TaggedError("TransientUpstream")<{
  readonly status: number;
  readonly body: string;
}> {}

// The shared Lambda fixture occasionally answers a transient 5xx under load
// (cold re-init, IAM propagation). Retry only 5xx; a genuine 4xx/assertion
// failure surfaces immediately.
const send = (request: HttpClientRequest.HttpClientRequest) =>
  HttpClient.execute(request).pipe(
    Effect.flatMap((response) =>
      response.status >= 500
        ? response.text.pipe(
            Effect.flatMap((body) =>
              Effect.fail(
                new TransientUpstream({ status: response.status, body }),
              ),
            ),
          )
        : Effect.succeed(response),
    ),
    Effect.retry({
      while: (e) => e._tag === "TransientUpstream",
      schedule: Schedule.max([
        Schedule.exponential("2 seconds"),
        Schedule.recurs(5),
      ]),
    }),
  );

describe.sequential(
  "Polly Bindings",
  {
    tags: [
      "provider:aws",
      "provider:aws:lambda",
      "provider:aws:polly",
      "provider:aws:s3",
      "live",
    ],
  },
  () => {
    beforeAll(
      Effect.gen(function* () {
        yield* Effect.logInfo(
          "Polly test setup: destroying previous resources",
        );
        yield* sharedStack.destroy();

        yield* Effect.logInfo("Polly test setup: deploying fixture");
        const { functionUrl } = yield* sharedStack.deploy(
          Effect.gen(function* () {
            return yield* PollyTestFunction;
          }).pipe(Effect.provide(PollyTestFunctionLive)),
        );

        expect(functionUrl).toBeTruthy();
        baseUrl = functionUrl!.replace(/\/+$/, "");

        const readinessUrl = `${baseUrl}/ping`;
        yield* Effect.logInfo(
          `Polly test setup: probing readiness at ${readinessUrl}`,
        );
        yield* HttpClient.get(readinessUrl).pipe(
          Effect.flatMap((response) =>
            response.status === 200
              ? Effect.succeed(response)
              : Effect.fail(
                  new Error(`Function not ready: ${response.status}`),
                ),
          ),
          Effect.tapError((error) =>
            Effect.logWarning(
              `Polly test setup: fixture not ready yet (${String(error)})`,
            ),
          ),
          Effect.retry({ schedule: readinessPolicy }),
        );
      }),
      { timeout: 300_000 },
    );

    afterAll.skipIf(!!process.env.NO_DESTROY)(sharedStack.destroy(), {
      timeout: 180_000,
    });

    describe("DescribeVoices", () => {
      test.provider(
        "lists en-US voices including Joanna",
        (_stack) =>
          Effect.gen(function* () {
            const response = (yield* send(
              HttpClientRequest.get(`${baseUrl}/voices`),
            ).pipe(Effect.flatMap((r) => r.json))) as {
              error?: string;
              count: number;
              voiceIds: string[];
            };

            expect(response.error).toBeUndefined();
            expect(response.count).toBeGreaterThan(0);
            expect(response.voiceIds).toContain("Joanna");
          }),
        { timeout: 120_000 },
      );
    });

    describe("ListLexicons", () => {
      test.provider(
        "lists the fixture's deployed lexicon",
        (_stack) =>
          Effect.gen(function* () {
            const response = (yield* send(
              HttpClientRequest.get(`${baseUrl}/lexicons`),
            ).pipe(Effect.flatMap((r) => r.json))) as {
              error?: string;
              names: string[];
            };

            expect(response.error).toBeUndefined();
            expect(response.names).toContain(LEXICON_NAME);
          }),
        { timeout: 120_000 },
      );
    });

    describe("GetLexicon", () => {
      test.provider(
        "reads the lexicon's PLS content scoped to its ARN",
        (_stack) =>
          Effect.gen(function* () {
            const response = (yield* send(
              HttpClientRequest.get(`${baseUrl}/lexicon-content`),
            ).pipe(Effect.flatMap((r) => r.json))) as {
              error?: string;
              name: string | null;
              containsAlias: boolean;
              lexemesCount: number | null;
            };

            expect(response.error).toBeUndefined();
            expect(response.name).toBe(LEXICON_NAME);
            expect(response.containsAlias).toBe(true);
            expect(response.lexemesCount).toBe(1);
          }),
        { timeout: 120_000 },
      );
    });

    describe("StartSpeechSynthesisStream", () => {
      // skipIf-gated: the distilled HTTP transport cannot send an input event
      // stream (bidirectional streaming). A direct probe of
      // `polly.startSpeechSynthesisStream` with a finite
      // `Stream.make({ TextEvent }, { CloseStreamEvent })` ActionStream never
      // receives response headers — it hangs until `Effect.timeout` fires
      // (`TimeoutError` after 20s locally; the Lambda route hangs to the
      // test timeout). Same transport gap leaves transcribe-streaming and
      // lex StartConversation unbound fleet-wide. Re-enable with
      // AWS_TEST_POLLY_STREAM=1 once distilled core supports bidirectional
      // event-stream request bodies.
      test.provider.skipIf(!process.env.AWS_TEST_POLLY_STREAM)(
        "streams text events in and collects audio events out",
        (_stack) =>
          Effect.gen(function* () {
            const response = (yield* send(
              HttpClientRequest.post(`${baseUrl}/stream`),
            ).pipe(Effect.flatMap((r) => r.json))) as {
              error?: string;
              events: number;
              audioBytes: number;
              closed: boolean;
            };

            expect(response.error).toBeUndefined();
            expect(response.events).toBeGreaterThan(0);
            expect(response.audioBytes).toBeGreaterThan(1000);
            expect(response.closed).toBe(true);
          }),
        { timeout: 120_000 },
      );
    });

    describe("SynthesizeSpeech", () => {
      test.provider(
        "synthesizes text with the lexicon applied to non-empty mp3 bytes",
        (_stack) =>
          Effect.gen(function* () {
            const response = (yield* send(
              HttpClientRequest.get(`${baseUrl}/synthesize`),
            ).pipe(Effect.flatMap((r) => r.json))) as {
              error?: string;
              contentType?: string;
              byteLength: number;
            };

            expect(response.error).toBeUndefined();
            expect(response.contentType).toContain("audio/mpeg");
            expect(response.byteLength).toBeGreaterThan(1000);
          }),
        { timeout: 120_000 },
      );
    });

    describe("StartSpeechSynthesisTask + GetSpeechSynthesisTask + ListSpeechSynthesisTasks", () => {
      test.provider(
        "runs an async synthesis task to completion in S3",
        (_stack) =>
          Effect.gen(function* () {
            const response = (yield* send(
              HttpClientRequest.post(`${baseUrl}/task`),
            ).pipe(Effect.flatMap((r) => r.json))) as {
              error?: string;
              taskId: string;
              status: string | null;
              statusReason: string | null;
              outputUri: string | null;
              listedCount: number;
            };

            expect(response.error).toBeUndefined();
            expect(response.taskId).toBeTruthy();
            expect(response.status).toBe("completed");
            expect(response.outputUri).toContain(BUCKET);
            expect(response.listedCount).toBeGreaterThan(0);
          }),
        { timeout: 120_000 },
      );
    });
  },
);