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

import * as AWS from "@/AWS";
import * as Core from "@/Test/Core";
import * as Test from "@/Test/Alchemy";
import * as eventbridge from "@distilled.cloud/aws/eventbridge";
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 DmsTestFunctionLive, { DmsTestFunction } from "./handler";

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

// 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 on the freshly attached policy that the
// handler's `Effect.orDie` surfaces as a 500). 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("500 millis"),
        Schedule.recurs(6),
      ]),
    }),
  );

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

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

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

        const readinessUrl = `${baseUrl}/bindings`;
        yield* Effect.logInfo(
          `DMS 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: ${response.status}`),
                ),
          ),
          Effect.tapError((error) =>
            Effect.logWarning(
              `DMS test setup: fixture not ready yet (${String(error)})`,
            ),
          ),
          Effect.retry({ schedule: readinessPolicy }),
        );
      }),
      { timeout: 240_000 },
    );

    afterAll(sharedStack.destroy(), { timeout: 120_000 });

    describe("binding registration", () => {
      test.provider("all capabilities initialize in the runtime", (_stack) =>
        Effect.gen(function* () {
          const response = yield* send(
            HttpClientRequest.get(`${baseUrl}/bindings`),
          ).pipe(Effect.flatMap((r) => r.json));
          expect((response as any).bound).toHaveLength(14);
        }),
      );
    });

    describe("DescribeSchemas", () => {
      test.provider(
        "answers with a typed fault for a never-refreshed endpoint",
        (_stack) =>
          Effect.gen(function* () {
            const response = (yield* send(
              HttpClientRequest.get(`${baseUrl}/schemas`),
            ).pipe(Effect.flatMap((r) => r.json))) as {
              schemas: unknown[];
              fault: string | null;
            };
            // The fixture endpoint has never had a schema refresh (that needs
            // a replication instance): DMS answers with a typed fault, or an
            // empty schema list. An IAM grant gap would 500 the route instead.
            if (response.fault !== null) {
              expect([
                "ResourceNotFoundFault",
                "InvalidResourceStateFault",
              ]).toContain(response.fault);
            } else {
              expect(response.schemas).toEqual([]);
            }
          }),
        { timeout: 60_000 },
      );
    });

    describe("DescribeRefreshSchemasStatus", () => {
      test.provider(
        "answers with a typed fault for a never-refreshed endpoint",
        (_stack) =>
          Effect.gen(function* () {
            const response = (yield* send(
              HttpClientRequest.get(`${baseUrl}/refresh-status`),
            ).pipe(Effect.flatMap((r) => r.json))) as {
              status: string | null;
              fault: string | null;
            };
            if (response.fault !== null) {
              expect([
                "ResourceNotFoundFault",
                "InvalidResourceStateFault",
              ]).toContain(response.fault);
            } else {
              expect(response.status).toBeNull();
            }
          }),
        { timeout: 60_000 },
      );
    });

    describe("DescribeConnections", () => {
      test.provider(
        "reports zero connection tests for the fresh endpoint",
        (_stack) =>
          Effect.gen(function* () {
            const response = (yield* send(
              HttpClientRequest.get(`${baseUrl}/connections`),
            ).pipe(Effect.flatMap((r) => r.json))) as { count: number };
            expect(response.count).toBe(0);
          }),
        { timeout: 60_000 },
      );
    });

    describe("DescribeEvents", () => {
      test.provider(
        "reads recent replication-instance events (empty on a quiet account)",
        (_stack) =>
          Effect.gen(function* () {
            const response = (yield* send(
              HttpClientRequest.get(`${baseUrl}/events`),
            ).pipe(Effect.flatMap((r) => r.json))) as { count: number };
            expect(response.count).toBeGreaterThanOrEqual(0);
          }),
        { timeout: 60_000 },
      );
    });

    describe("DescribeEndpointSettings", () => {
      test.provider(
        "enumerates the settings the mysql engine accepts",
        (_stack) =>
          Effect.gen(function* () {
            const response = (yield* send(
              HttpClientRequest.get(`${baseUrl}/endpoint-settings`),
            ).pipe(Effect.flatMap((r) => r.json))) as { count: number };
            expect(response.count).toBeGreaterThan(0);
          }),
        { timeout: 60_000 },
      );
    });

    describe("DescribeOrderableReplicationInstances", () => {
      test.provider(
        "enumerates orderable replication instance classes",
        (_stack) =>
          Effect.gen(function* () {
            const response = (yield* send(
              HttpClientRequest.get(`${baseUrl}/orderable`),
            ).pipe(Effect.flatMap((r) => r.json))) as { count: number };
            expect(response.count).toBeGreaterThan(0);
          }),
        { timeout: 60_000 },
      );
    });

    describe("DescribeReplicationTasks", () => {
      test.provider(
        "answers a no-match filter with zero tasks or the typed fault",
        (_stack) =>
          Effect.gen(function* () {
            const response = (yield* send(
              HttpClientRequest.get(`${baseUrl}/tasks`),
            ).pipe(Effect.flatMap((r) => r.json))) as {
              count: number;
              fault: string | null;
            };
            expect(response.count).toBe(0);
            if (response.fault !== null) {
              expect(response.fault).toBe("ResourceNotFoundFault");
            }
          }),
        { timeout: 60_000 },
      );
    });

    describe("StartReplicationTask", () => {
      test.provider(
        "surfaces the typed not-found fault for a nonexistent task",
        (_stack) =>
          Effect.gen(function* () {
            const response = (yield* send(
              HttpClientRequest.post(`${baseUrl}/task/start`),
            ).pipe(Effect.flatMap((r) => r.json))) as { fault: string };
            expect([
              "ResourceNotFoundFault",
              "InvalidResourceStateFault",
              "AccessDeniedFault",
            ]).toContain(response.fault);
          }),
        { timeout: 60_000 },
      );
    });

    describe("StopReplicationTask", () => {
      test.provider(
        "surfaces the typed not-found fault for a nonexistent task",
        (_stack) =>
          Effect.gen(function* () {
            const response = (yield* send(
              HttpClientRequest.post(`${baseUrl}/task/stop`),
            ).pipe(Effect.flatMap((r) => r.json))) as { fault: string };
            expect([
              "ResourceNotFoundFault",
              "InvalidResourceStateFault",
            ]).toContain(response.fault);
          }),
        { timeout: 60_000 },
      );
    });

    describe("DescribeTableStatistics", () => {
      test.provider(
        "surfaces the typed not-found fault for a nonexistent task",
        (_stack) =>
          Effect.gen(function* () {
            const response = (yield* send(
              HttpClientRequest.get(`${baseUrl}/task/tables`),
            ).pipe(Effect.flatMap((r) => r.json))) as { fault: string };
            expect([
              "ResourceNotFoundFault",
              "InvalidResourceStateFault",
              "AccessDeniedFault",
            ]).toContain(response.fault);
          }),
        { timeout: 60_000 },
      );
    });

    describe("ReloadTables", () => {
      test.provider(
        "surfaces the typed not-found fault for a nonexistent task",
        (_stack) =>
          Effect.gen(function* () {
            const response = (yield* send(
              HttpClientRequest.post(`${baseUrl}/task/reload`),
            ).pipe(Effect.flatMap((r) => r.json))) as { fault: string };
            expect([
              "ResourceNotFoundFault",
              "InvalidResourceStateFault",
            ]).toContain(response.fault);
          }),
        { timeout: 60_000 },
      );
    });

    describe("DescribeReplications", () => {
      test.provider(
        "answers a no-match filter with zero replications or the typed fault",
        (_stack) =>
          Effect.gen(function* () {
            const response = (yield* send(
              HttpClientRequest.get(`${baseUrl}/replications`),
            ).pipe(Effect.flatMap((r) => r.json))) as {
              count: number;
              fault: string | null;
            };
            expect(response.count).toBe(0);
            if (response.fault !== null) {
              expect(response.fault).toBe("ResourceNotFoundFault");
            }
          }),
        { timeout: 60_000 },
      );
    });

    describe("StartReplication", () => {
      test.provider(
        "surfaces the typed not-found fault for a nonexistent config",
        (_stack) =>
          Effect.gen(function* () {
            const response = (yield* send(
              HttpClientRequest.post(`${baseUrl}/replication/start`),
            ).pipe(Effect.flatMap((r) => r.json))) as { fault: string };
            expect([
              "ResourceNotFoundFault",
              "InvalidResourceStateFault",
              "AccessDeniedFault",
            ]).toContain(response.fault);
          }),
        { timeout: 60_000 },
      );
    });

    describe("StopReplication", () => {
      test.provider(
        "surfaces the typed not-found fault for a nonexistent config",
        (_stack) =>
          Effect.gen(function* () {
            const response = (yield* send(
              HttpClientRequest.post(`${baseUrl}/replication/stop`),
            ).pipe(Effect.flatMap((r) => r.json))) as { fault: string };
            expect([
              "ResourceNotFoundFault",
              "InvalidResourceStateFault",
              "AccessDeniedFault",
            ]).toContain(response.fault);
          }),
        { timeout: 60_000 },
      );
    });

    describe(
      "consumeReplicationEvents",
      { tags: ["provider:aws:eventbridge"] },
      () => {
        test.provider(
          "created the EventBridge rule for DMS replication task state changes",
          () =>
            Effect.gen(function* () {
              // The rule's physical name embeds the fixture's logical id
              // (`DmsTestFunction-DmsReplicationEvents`); find it on the default
              // bus with bounded manual pagination.
              let rule: eventbridge.Rule | undefined;
              let nextToken: string | undefined;
              for (let page = 0; page < 10 && !rule; page++) {
                const result = yield* eventbridge.listRules({
                  NextToken: nextToken,
                });
                rule = (result.Rules ?? []).find((candidate) =>
                  candidate.Name?.includes("DmsReplicationEvents"),
                );
                nextToken = result.NextToken;
                if (!nextToken) break;
              }
              expect(rule).toBeDefined();
              expect(rule?.EventPattern).toContain("aws.dms");
              expect(rule?.EventPattern).toContain(
                "DMS Replication Task State Change",
              );
            }),
          { timeout: 60_000 },
        );
      },
    );
  },
);