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

import * as AWS from "@/AWS";
import * as Core from "@/Test/Core";
import * as Test from "@/Test/Alchemy";
import * as Lambda from "@distilled.cloud/aws/lambda";
import { describe, expect } from "alchemy-test";
import * as Effect from "effect/Effect";
import * as Schedule from "effect/Schedule";
import * as HttpClient from "effect/http/HttpClient";
import LambdaBindingsTestFunctionLive, {
  LambdaBindingsTestFunction,
} from "./bindings-handler.ts";

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

let baseUrl: string;
let deployedFunctionName: string;

// Fresh function URLs take a few seconds to start serving 200s; ride
// through propagation + cold start with a bounded retry.
const getJson = (path: string, times = 10) =>
  HttpClient.get(`${baseUrl}${path}`).pipe(
    Effect.flatMap((response) =>
      response.status === 200
        ? response.json
        : response.text.pipe(
            Effect.flatMap((body) =>
              Effect.fail(
                new Error(`${path} returned ${response.status}: ${body}`),
              ),
            ),
          ),
    ),
    Effect.retry({
      schedule: Schedule.max([
        Schedule.exponential("1 second"),
        Schedule.recurs(times),
      ]),
    }),
  );

describe(
  "Lambda Bindings",
  { tags: ["provider:aws", "provider:aws:lambda", "live"] },
  () => {
    beforeAll(
      Effect.gen(function* () {
        yield* sharedStack.destroy();
        const { functionName, functionUrl } = yield* sharedStack.deploy(
          Effect.gen(function* () {
            return yield* LambdaBindingsTestFunction;
          }).pipe(Effect.provide(LambdaBindingsTestFunctionLive)),
        );
        expect(functionUrl).toBeTruthy();
        baseUrl = functionUrl!.replace(/\/+$/, "");
        deployedFunctionName = functionName;
      }),
      { timeout: 300_000 },
    );

    afterAll(
      Effect.gen(function* () {
        yield* sharedStack.destroy();
        // Out-of-band proof the destroy removed the host function. The raw
        // afterAll context has no providers layer (only `test.provider` bodies
        // do), so the distilled call must be wrapped in `Core.withProviders`
        // to satisfy Credentials/HttpClient/Region.
        if (deployedFunctionName) {
          yield* Core.withProviders(
            Lambda.getFunction({
              FunctionName: deployedFunctionName,
            }).pipe(
              Effect.flatMap(() =>
                Effect.fail(
                  new Error(`Function ${deployedFunctionName} still exists`),
                ),
              ),
              Effect.catchTag("ResourceNotFoundException", () => Effect.void),
              Effect.retry({
                schedule: Schedule.max([
                  Schedule.exponential(500),
                  Schedule.recurs(8),
                ]),
              }),
            ),
            testOptions,
            "LambdaBindings",
          );
        }
      }),
      { timeout: 180_000 },
    );

    test.provider(
      "InvokeFunction invokes the target function",
      () =>
        Effect.gen(function* () {
          const result = (yield* getJson("/invoke", 30)) as {
            statusCode: number;
          };
          expect(result.statusCode).toBe(200);
        }),
      { timeout: 120_000 },
    );

    test.provider(
      "InvokeWithResponseStream streams the target's response",
      () =>
        Effect.gen(function* () {
          const result = (yield* getJson("/invoke-stream")) as {
            statusCode: number;
            payload: string;
            complete: boolean;
            eventShapes: string[][];
          };
          expect(result.statusCode).toBe(200);
          expect(result.complete).toBe(true);
          expect(
            result.payload,
            `event shapes: ${JSON.stringify(result.eventShapes)}`,
          ).toContain("ok");
        }),
      { timeout: 120_000 },
    );

    test.provider(
      "GetFunction reads the target's configuration",
      () =>
        Effect.gen(function* () {
          const result = (yield* getJson("/get-function")) as {
            functionName: string;
          };
          expect(result.functionName).toBeTruthy();
        }),
      { timeout: 120_000 },
    );

    test.provider(
      "GetAccountSettings reads account limits",
      () =>
        Effect.gen(function* () {
          const result = (yield* getJson("/account-settings")) as {
            concurrentExecutions: number;
          };
          expect(result.concurrentExecutions).toBeGreaterThan(0);
        }),
      { timeout: 120_000 },
    );

    test.provider(
      "ListFunctions lists functions in the region",
      () =>
        Effect.gen(function* () {
          const result = (yield* getJson("/list-functions")) as {
            count: number;
          };
          expect(result.count).toBeGreaterThan(0);
        }),
      { timeout: 120_000 },
    );
  },
);