index.test.ts

import { expect, jest, test } from "@jest/globals";
import Replicate, {
  ApiError,
  Model,
  Prediction,
  validateWebhook,
  parseProgressFromLogs,
} from "replicate";
import nock from "nock";
import { Readable } from "node:stream";
import { createReadableStream } from "./lib/stream";

let client: Replicate;
const BASE_URL = "https://api.replicate.com/v1";

nock.disableNetConnect();

describe("Replicate client", () => {
  let unmatched: any[] = [];
  const handleNoMatch = (req: unknown, options: any, body: string) =>
    unmatched.push({ req, options, body });

  beforeEach(() => {
    client = new Replicate({ auth: "test-token" });

    unmatched = [];
    nock.emitter.on("no match", handleNoMatch);
  });

  afterEach(() => {
    nock.emitter.off("no match", handleNoMatch);
    expect(unmatched).toStrictEqual([]);

    nock.abortPendingRequests();
    nock.cleanAll();
  });

  describe("constructor", () => {
    test("Sets default baseUrl", () => {
      expect(client.baseUrl).toBe("https://api.replicate.com/v1");
    });

    test("Sets custom baseUrl", () => {
      const clientWithCustomBaseUrl = new Replicate({
        baseUrl: "https://example.com/",
        auth: "test-token",
      });
      expect(clientWithCustomBaseUrl.baseUrl).toBe("https://example.com/");
    });

    test("Sets custom userAgent", () => {
      const clientWithCustomUserAgent = new Replicate({
        userAgent: "my-app/1.2.3",
        auth: "test-token",
      });
      expect(clientWithCustomUserAgent.userAgent).toBe("my-app/1.2.3");
    });

    test("Does not throw error if auth token is not provided", () => {
      process.env.REPLICATE_API_TOKEN = "test-token";

      expect(() => {
        const clientWithImplicitAuth = new Replicate();

        expect(clientWithImplicitAuth.auth).toBe("test-token");
      }).not.toThrow();
    });

    test("Does not throw error if blank auth token is provided", () => {
      expect(() => {
        new Replicate({ auth: "" });
      }).not.toThrow();
    });
  });

  describe("account.get", () => {
    test("Calls the correct API route", async () => {
      nock(BASE_URL).get("/account").reply(200, {
        type: "organization",
        username: "replicate",
        name: "Replicate",
        github_url: "https://github.com/replicate",
      });

      const account = await client.accounts.current();
      expect(account.type).toBe("organization");
      expect(account.username).toBe("replicate");
    });
    // Add more tests for error handling, edge cases, etc.
  });

  describe("collections.list", () => {
    test("Calls the correct API route", async () => {
      nock(BASE_URL)
        .get("/collections")
        .reply(200, {
          results: [
            {
              name: "Super resolution",
              slug: "super-resolution",
              description:
                "Upscaling models that create high-quality images from low-quality images.",
            },
            {
              name: "Image classification",
              slug: "image-classification",
              description: "Models that classify images.",
            },
          ],
          next: null,
          previous: null,
        });

      const collections = await client.collections.list();
      expect(collections.results.length).toBe(2);
    });
    // Add more tests for error handling, edge cases, etc.
  });

  describe("collections.get", () => {
    test("Calls the correct API route", async () => {
      nock(BASE_URL).get("/collections/super-resolution").reply(200, {
        name: "Super resolution",
        slug: "super-resolution",
        description:
          "Upscaling models that create high-quality images from low-quality images.",
        models: [],
      });

      const collection = await client.collections.get("super-resolution");
      expect(collection.name).toBe("Super resolution");
    });
    // Add more tests for error handling, edge cases, etc.
  });

  describe("models.get", () => {
    test("Calls the correct API route", async () => {
      nock(BASE_URL).get("/models/replicate/hello-world").reply(200, {
        url: "https://replicate.com/replicate/hello-world",
        owner: "replicate",
        name: "hello-world",
        description: "A tiny model that says hello",
        visibility: "public",
        github_url: "https://github.com/replicate/cog-examples",
        paper_url: null,
        license_url: null,
        run_count: 12345,
        cover_image_url: "",
        default_example: {},
        latest_version: {},
      });

      await client.models.get("replicate", "hello-world");
    });
    // Add more tests for error handling, edge cases, etc.
  });

  describe("models.list", () => {
    test("Paginates results", async () => {
      nock(BASE_URL)
        .get("/models")
        .reply(200, {
          results: [{ url: "https://replicate.com/some-user/model-1" }],
          next: "https://api.replicate.com/v1/models?cursor=cD0yMDIyLTAxLTIxKzIzJTNBMTglM0EyNC41MzAzNTclMkIwMCUzQTAw",
        })
        .get(
          "/models?cursor=cD0yMDIyLTAxLTIxKzIzJTNBMTglM0EyNC41MzAzNTclMkIwMCUzQTAw"
        )
        .reply(200, {
          results: [{ url: "https://replicate.com/some-user/model-2" }],
          next: null,
        });

      const results: Model[] = [];
      for await (const batch of client.paginate(client.models.list)) {
        results.push(...batch);
      }
      expect(results).toEqual([
        { url: "https://replicate.com/some-user/model-1" },
        { url: "https://replicate.com/some-user/model-2" },
      ]);

      // Add more tests for error handling, edge cases, etc.
    });
  });

  describe("predictions.create", () => {
    const predictionTestCases = [
      {
        description: "String input",
        input: {
          text: "Alice",
        },
      },
      {
        description: "Number input",
        input: {
          text: 123,
        },
      },
      {
        description: "Boolean input",
        input: {
          text: true,
        },
      },
      {
        description: "Array input",
        input: {
          text: ["Alice", "Bob", "Charlie"],
        },
      },
      {
        description: "Object input",
        input: {
          text: {
            name: "Alice",
          },
        },
      },
    ].map((testCase) => ({
      ...testCase,
      expectedResponse: {
        id: "ufawqhfynnddngldkgtslldrkq",
        model: "replicate/hello-world",
        version:
          "5c7d5dc6dd8bf75c1acaa8565735e7986bc5b66206b55cca93cb72c9bf15ccaa",
        urls: {
          get: "https://api.replicate.com/v1/predictions/ufawqhfynnddngldkgtslldrkq",
          cancel:
            "https://api.replicate.com/v1/predictions/ufawqhfynnddngldkgtslldrkq/cancel",
        },
        input: testCase.input,
        created_at: "2022-04-26T22:13:06.224088Z",
        started_at: null,
        completed_at: null,
        status: "starting",
      },
    }));

    test.each(predictionTestCases)(
      "$description",
      async ({ input, expectedResponse }) => {
        nock(BASE_URL)
          .post("/predictions", {
            version:
              "5c7d5dc6dd8bf75c1acaa8565735e7986bc5b66206b55cca93cb72c9bf15ccaa",
            input: input as Record<string, any>,
            webhook: "http://test.host/webhook",
            webhook_events_filter: ["output", "completed"],
          })
          .reply(200, expectedResponse);

        const response = await client.predictions.create({
          version:
            "5c7d5dc6dd8bf75c1acaa8565735e7986bc5b66206b55cca93cb72c9bf15ccaa",
          input: input as Record<string, any>,
          webhook: "http://test.host/webhook",
          webhook_events_filter: ["output", "completed"],
        });

        expect(response.input).toEqual(input);
        expect(response.status).toBe(expectedResponse.status);
      }
    );

    const fileTestCases = [
      // Skip test case if File type is not available
      ...(typeof File !== "undefined"
        ? [
            {
              type: "file",
              value: new File(["hello world"], "file_hello.txt", {
                type: "text/plain",
              }),
              expected: "data:text/plain;base64,aGVsbG8gd29ybGQ=",
            },
          ]
        : []),
      {
        type: "blob",
        value: new Blob(["hello world"], { type: "text/plain" }),
        expected: "data:text/plain;base64,aGVsbG8gd29ybGQ=",
      },
      {
        type: "buffer",
        value: Buffer.from("hello world"),
        expected: "data:application/octet-stream;base64,aGVsbG8gd29ybGQ=",
      },
    ];

    test.each(fileTestCases)(
      "converts a $type input into a Replicate file URL",
      async ({ value: data, type }) => {
        const mockedFetch = jest.spyOn(client, "fetch");

        nock(BASE_URL)
          .post("/files")
          .reply(201, {
            urls: {
              get: "https://replicate.com/api/files/123",
            },
          })
          .post(
            "/predictions",
            (body) => body.input.data === "https://replicate.com/api/files/123"
          )
          .reply(201, (_uri: string, body: Record<string, any>) => {
            return body;
          });

        const prediction = await client.predictions.create({
          version:
            "5c7d5dc6dd8bf75c1acaa8565735e7986bc5b66206b55cca93cb72c9bf15ccaa",
          input: {
            prompt: "Tell me a story",
            data,
          },
        });

        expect(client.fetch).toHaveBeenCalledWith(
          new URL("https://api.replicate.com/v1/files"),
          {
            method: "POST",
            body: expect.any(FormData),
            headers: expect.any(Object),
          }
        );
        const form = mockedFetch.mock.calls[0][1]?.body as FormData;
        // @ts-ignore
        expect(form?.get("content")?.name).toMatch(new RegExp(`^${type}_`));

        expect(prediction.input).toEqual({
          prompt: "Tell me a story",
          data: "https://replicate.com/api/files/123",
        });
      }
    );

    test.each(fileTestCases)(
      "converts a $type input into a base64 encoded string",
      async ({ value: data, expected }) => {
        let actual: Record<string, any> | undefined;
        nock(BASE_URL)
          .post("/files")
          .reply(503, "Service Unavailable")
          .post("/predictions")
          .reply(201, (_uri: string, body: Record<string, any>) => {
            actual = body;
            return body;
          });

        await client.predictions.create({
          version:
            "5c7d5dc6dd8bf75c1acaa8565735e7986bc5b66206b55cca93cb72c9bf15ccaa",
          input: {
            prompt: "Tell me a story",
            data,
          },
          stream: true,
        });

        expect(actual?.input.data).toEqual(expected);
      }
    );

    test("Passes stream parameter to API endpoint", async () => {
      nock(BASE_URL)
        .post("/predictions")
        .reply(201, (_uri, body) => {
          expect((body as any).stream).toBe(true);
          return body;
        });

      await client.predictions.create({
        version:
          "5c7d5dc6dd8bf75c1acaa8565735e7986bc5b66206b55cca93cb72c9bf15ccaa",
        input: {
          prompt: "Tell me a story",
        },
        stream: true,
      });
    });

    test("Throws an error if webhook URL is invalid", async () => {
      await expect(async () => {
        await client.predictions.create({
          version:
            "5c7d5dc6dd8bf75c1acaa8565735e7986bc5b66206b55cca93cb72c9bf15ccaa",
          input: {
            text: "Alice",
          },
          webhook: "invalid-url",
        });
      }).rejects.toThrow("Invalid webhook URL");
    });

    test("Throws an error with details failing response is JSON", async () => {
      nock(BASE_URL).post("/predictions").reply(
        400,
        {
          status: 400,
          detail: "Invalid input",
        },
        { "Content-Type": "application/json" }
      );

      try {
        expect.hasAssertions();

        await client.predictions.create({
          version:
            "5c7d5dc6dd8bf75c1acaa8565735e7986bc5b66206b55cca93cb72c9bf15ccaa",
          input: {
            text: null,
          },
        });
      } catch (error) {
        expect((error as ApiError).response.status).toBe(400);
        expect((error as ApiError).message).toContain("Invalid input");
      }
    });

    test("Automatically retries on 429", async () => {
      nock(BASE_URL)
        .post("/predictions")
        .reply(
          429,
          {
            detail: "Too many requests",
          },
          { "Content-Type": "application/json", "Retry-After": "1" }
        )
        .post("/predictions")
        .reply(201, {
          id: "ufawqhfynnddngldkgtslldrkq",
        });
      const prediction = await client.predictions.create({
        version:
          "5c7d5dc6dd8bf75c1acaa8565735e7986bc5b66206b55cca93cb72c9bf15ccaa",
        input: {
          text: "Alice",
        },
      });
      expect(prediction.id).toBe("ufawqhfynnddngldkgtslldrkq");
    });

    test("Does not automatically retry on 500", async () => {
      nock(BASE_URL).post("/predictions").reply(
        500,
        {
          detail: "Internal server error",
        },
        { "Content-Type": "application/json" }
      );

      await expect(
        client.predictions.create({
          version:
            "5c7d5dc6dd8bf75c1acaa8565735e7986bc5b66206b55cca93cb72c9bf15ccaa",
          input: {
            text: "Alice",
          },
        })
      ).rejects.toThrow(
        `Request to https://api.replicate.com/v1/predictions failed with status 500 Internal Server Error: {"detail":"Internal server error"}.`
      );
    });
  });

  describe("predictions.get", () => {
    test("Calls the correct API route with the correct payload", async () => {
      nock(BASE_URL)
        .get("/predictions/rrr4z55ocneqzikepnug6xezpe")
        .reply(200, {
          id: "rrr4z55ocneqzikepnug6xezpe",
          model: "stability-ai/stable-diffusion",
          version:
            "be04660a5b93ef2aff61e3668dedb4cbeb14941e62a3fd5998364a32d613e35e",
          urls: {
            get: "https://api.replicate.com/v1/predictions/rrr4z55ocneqzikepnug6xezpe",
            cancel:
              "https://api.replicate.com/v1/predictions/rrr4z55ocneqzikepnug6xezpe/cancel",
          },
          created_at: "2022-09-13T22:54:18.578761Z",
          started_at: "2022-09-13T22:54:19.438525Z",
          completed_at: "2022-09-13T22:54:23.236610Z",
          source: "api",
          status: "succeeded",
          input: {
            prompt: "oak tree with boletus growing on its branches",
          },
          output: [
            "https://replicate.com/api/models/stability-ai/stable-diffusion/files/9c3b6fe4-2d37-4571-a17a-83951b1cb120/out-0.png",
          ],
          error: null,
          logs: "Using seed: 36941...",
          metrics: {
            predict_time: 4.484541,
          },
        });
      const prediction = await client.predictions.get(
        "rrr4z55ocneqzikepnug6xezpe"
      );
      expect(prediction.id).toBe("rrr4z55ocneqzikepnug6xezpe");
    });

    test("Automatically retries on 429", async () => {
      nock(BASE_URL)
        .get("/predictions/rrr4z55ocneqzikepnug6xezpe")
        .reply(
          429,
          {
            detail: "Too many requests",
          },
          { "Content-Type": "application/json", "Retry-After": "1" }
        )
        .get("/predictions/rrr4z55ocneqzikepnug6xezpe")
        .reply(200, {
          id: "rrr4z55ocneqzikepnug6xezpe",
        });

      const prediction = await client.predictions.get(
        "rrr4z55ocneqzikepnug6xezpe"
      );
      expect(prediction.id).toBe("rrr4z55ocneqzikepnug6xezpe");
    });

    test("Automatically retries on 500", async () => {
      nock(BASE_URL)
        .get("/predictions/rrr4z55ocneqzikepnug6xezpe")
        .reply(
          500,
          {
            detail: "Internal server error",
          },
          { "Content-Type": "application/json" }
        )
        .get("/predictions/rrr4z55ocneqzikepnug6xezpe")
        .reply(200, {
          id: "rrr4z55ocneqzikepnug6xezpe",
        });

      const prediction = await client.predictions.get(
        "rrr4z55ocneqzikepnug6xezpe"
      );
      expect(prediction.id).toBe("rrr4z55ocneqzikepnug6xezpe");
    });
  });

  describe("predictions.cancel", () => {
    test("Calls the correct API route with the correct payload", async () => {
      nock(BASE_URL)
        .post("/predictions/ufawqhfynnddngldkgtslldrkq/cancel")
        .reply(200, {
          id: "ufawqhfynnddngldkgtslldrkq",
          model: "replicate/hello-world",
          version:
            "5c7d5dc6dd8bf75c1acaa8565735e7986bc5b66206b55cca93cb72c9bf15ccaa",
          urls: {
            get: "https://api.replicate.com/v1/predictions/ufawqhfynnddngldkgtslldrkq",
            cancel:
              "https://api.replicate.com/v1/predictions/ufawqhfynnddngldkgtslldrkq/cancel",
          },
          created_at: "2022-04-26T22:13:06.224088Z",
          started_at: "2022-04-26T22:13:06.224088Z",
          completed_at: "2022-04-26T22:14:06.224088Z",
          status: "canceled",
          input: {
            text: "Alice",
          },
          output: null,
          error: null,
          logs: null,
          metrics: {},
        });

      const prediction = await client.predictions.cancel(
        "ufawqhfynnddngldkgtslldrkq"
      );
      expect(prediction.status).toBe("canceled");
    });

    // Add more tests for error handling, edge cases, etc.
  });

  describe("predictions.list", () => {
    test("Calls the correct API route with the correct payload", async () => {
      nock(BASE_URL)
        .get("/predictions")
        .reply(200, {
          next: "https://api.replicate.com/v1/predictions?cursor=cD0yMDIyLTAxLTIxKzIzJTNBMTglM0EyNC41MzAzNTclMkIwMCUzQTAw",
          previous: null,
          results: [
            {
              id: "jpzd7hm5gfcapbfyt4mqytarku",
              model: "stability-ai/stable-diffusion",
              version:
                "b21cbe271e65c1718f2999b038c18b45e21e4fba961181fbfae9342fc53b9e05",
              urls: {
                get: "https://api.replicate.com/v1/predictions/jpzd7hm5gfcapbfyt4mqytarku",
                cancel:
                  "https://api.replicate.com/v1/predictions/jpzd7hm5gfcapbfyt4mqytarku/cancel",
              },
              created_at: "2022-04-26T20:00:40.658234Z",
              started_at: "2022-04-26T20:00:84.583803Z",
              completed_at: "2022-04-26T20:02:27.648305Z",
              source: "web",
              status: "succeeded",
            },
          ],
        });

      const predictions = await client.predictions.list();
      expect(predictions.results.length).toBe(1);
      expect(predictions.results[0].id).toBe("jpzd7hm5gfcapbfyt4mqytarku");
    });

    test("Paginates results", async () => {
      nock(BASE_URL)
        .get("/predictions")
        .reply(200, {
          results: [{ id: "ufawqhfynnddngldkgtslldrkq" }],
          next: "https://api.replicate.com/v1/predictions?cursor=cD0yMDIyLTAxLTIxKzIzJTNBMTglM0EyNC41MzAzNTclMkIwMCUzQTAw",
        })
        .get(
          "/predictions?cursor=cD0yMDIyLTAxLTIxKzIzJTNBMTglM0EyNC41MzAzNTclMkIwMCUzQTAw"
        )
        .reply(200, {
          results: [{ id: "rrr4z55ocneqzikepnug6xezpe" }],
          next: null,
        });

      const results: Prediction[] = [];
      for await (const batch of client.paginate(client.predictions.list)) {
        results.push(...batch);
      }
      expect(results).toEqual([
        { id: "ufawqhfynnddngldkgtslldrkq" },
        { id: "rrr4z55ocneqzikepnug6xezpe" },
      ]);

      // Add more tests for error handling, edge cases, etc.
    });
  });

  describe("trainings.create", () => {
    test("Calls the correct API route with the correct payload", async () => {
      nock(BASE_URL)
        .post(
          "/models/owner/model/versions/632231d0d49d34d5c4633bd838aee3d81d936e59a886fbf28524702003b4c532/trainings"
        )
        .reply(200, {
          id: "zz4ibbonubfz7carwiefibzgga",
          version:
            "632231d0d49d34d5c4633bd838aee3d81d936e59a886fbf28524702003b4c532",
          status: "starting",
          input: {
            text: "...",
          },
          output: null,
          error: null,
          logs: null,
          started_at: null,
          created_at: "2023-03-28T21:47:58.566434Z",
          completed_at: null,
        });

      const training = await client.trainings.create(
        "owner",
        "model",
        "632231d0d49d34d5c4633bd838aee3d81d936e59a886fbf28524702003b4c532",
        {
          destination: "new_owner/new_model",
          input: {
            text: "...",
          },
        }
      );
      expect(training.id).toBe("zz4ibbonubfz7carwiefibzgga");
    });

    test("Throws an error if webhook is not a valid URL", async () => {
      await expect(
        client.trainings.create(
          "owner",
          "model",
          "632231d0d49d34d5c4633bd838aee3d81d936e59a886fbf28524702003b4c532",
          {
            destination: "new_owner/new_model",
            input: {
              text: "...",
            },
            webhook: "invalid-url",
          }
        )
      ).rejects.toThrow("Invalid webhook URL");
    });

    // Add more tests for error handling, edge cases, etc.
  });

  describe("trainings.get", () => {
    test("Calls the correct API route with the correct payload", async () => {
      nock(BASE_URL)
        .get("/trainings/zz4ibbonubfz7carwiefibzgga")
        .reply(200, {
          id: "zz4ibbonubfz7carwiefibzgga",
          version: "{version}",
          status: "succeeded",
          input: {
            data: "...",
            param1: "...",
          },
          output: {
            version: "...",
          },
          error: null,
          logs: null,
          webhook_completed: null,
          started_at: null,
          created_at: "2023-03-28T21:47:58.566434Z",
          completed_at: null,
        });

      const training = await client.trainings.get("zz4ibbonubfz7carwiefibzgga");
      expect(training.status).toBe("succeeded");
    });

    // Add more tests for error handling, edge cases, etc.
  });

  describe("trainings.cancel", () => {
    test("Calls the correct API route with the correct payload", async () => {
      nock(BASE_URL)
        .post("/trainings/zz4ibbonubfz7carwiefibzgga/cancel")
        .reply(200, {
          id: "zz4ibbonubfz7carwiefibzgga",
          version: "{version}",
          status: "canceled",
          input: {
            data: "...",
            param1: "...",
          },
          output: {
            version: "...",
          },
          error: null,
          logs: null,
          webhook_completed: null,
          started_at: null,
          created_at: "2023-03-28T21:47:58.566434Z",
          completed_at: null,
        });

      const training = await client.trainings.cancel(
        "zz4ibbonubfz7carwiefibzgga"
      );
      expect(training.status).toBe("canceled");
    });

    // Add more tests for error handling, edge cases, etc.
  });

  describe("trainings.list", () => {
    test("Calls the correct API route with the correct payload", async () => {
      nock(BASE_URL)
        .get("/trainings")
        .reply(200, {
          next: "https://api.replicate.com/v1/trainings?cursor=cD0yMDIyLTAxLTIxKzIzJTNBMTglM0EyNC41MzAzNTclMkIwMCUzQTAw",
          previous: null,
          results: [
            {
              id: "jpzd7hm5gfcapbfyt4mqytarku",
              model: "stability-ai/sdxl",
              version:
                "b21cbe271e65c1718f2999b038c18b45e21e4fba961181fbfae9342fc53b9e05",
              urls: {
                get: "https://api.replicate.com/v1/trainings/jpzd7hm5gfcapbfyt4mqytarku",
                cancel:
                  "https://api.replicate.com/v1/trainings/jpzd7hm5gfcapbfyt4mqytarku/cancel",
              },
              created_at: "2022-04-26T20:00:40.658234Z",
              started_at: "2022-04-26T20:00:84.583803Z",
              completed_at: "2022-04-26T20:02:27.648305Z",
              source: "web",
              status: "succeeded",
            },
          ],
        });

      const trainings = await client.trainings.list();
      expect(trainings.results.length).toBe(1);
      expect(trainings.results[0].id).toBe("jpzd7hm5gfcapbfyt4mqytarku");
    });

    test("Paginates results", async () => {
      nock(BASE_URL)
        .get("/trainings")
        .reply(200, {
          results: [{ id: "ufawqhfynnddngldkgtslldrkq" }],
          next: "https://api.replicate.com/v1/trainings?cursor=cD0yMDIyLTAxLTIxKzIzJTNBMTglM0EyNC41MzAzNTclMkIwMCUzQTAw",
        })
        .get(
          "/trainings?cursor=cD0yMDIyLTAxLTIxKzIzJTNBMTglM0EyNC41MzAzNTclMkIwMCUzQTAw"
        )
        .reply(200, {
          results: [{ id: "rrr4z55ocneqzikepnug6xezpe" }],
          next: null,
        });

      const results: Prediction[] = [];
      for await (const batch of client.paginate(client.trainings.list)) {
        results.push(...batch);
      }
      expect(results).toEqual([
        { id: "ufawqhfynnddngldkgtslldrkq" },
        { id: "rrr4z55ocneqzikepnug6xezpe" },
      ]);

      // Add more tests for error handling, edge cases, etc.
    });
  });

  describe("deployments.predictions.create", () => {
    test("Calls the correct API route with the correct payload", async () => {
      nock(BASE_URL)
        .post("/deployments/replicate/greeter/predictions")
        .reply(200, {
          id: "mfrgcyzzme2wkmbwgzrgmntcg",
          model: "replicate/hello-world",
          version:
            "5c7d5dc6dd8bf75c1acaa8565735e7986bc5b66206b55cca93cb72c9bf15ccaa",
          urls: {
            get: "https://api.replicate.com/v1/predictions/ufawqhfynnddngldkgtslldrkq",
            cancel:
              "https://api.replicate.com/v1/predictions/ufawqhfynnddngldkgtslldrkq/cancel",
          },
          created_at: "2022-09-10T09:44:22.165836Z",
          started_at: null,
          completed_at: null,
          status: "starting",
          input: {
            text: "Alice",
          },
          output: null,
          error: null,
          logs: null,
          metrics: {},
        });
      const prediction = await client.deployments.predictions.create(
        "replicate",
        "greeter",
        {
          input: {
            text: "Alice",
          },
          webhook: "http://test.host/webhook",
          webhook_events_filter: ["output", "completed"],
        }
      );
      expect(prediction.id).toBe("mfrgcyzzme2wkmbwgzrgmntcg");
    });
    // Add more tests for error handling, edge cases, etc.
  });

  describe("deployments.get", () => {
    test("Calls the correct API route with the correct payload", async () => {
      nock(BASE_URL)
        .get("/deployments/acme/my-app-image-generator")
        .reply(200, {
          owner: "acme",
          name: "my-app-image-generator",
          current_release: {
            number: 1,
            model: "stability-ai/sdxl",
            version:
              "da77bc59ee60423279fd632efb4795ab731d9e3ca9705ef3341091fb989b7eaf",
            created_at: "2024-02-15T16:32:57.018467Z",
            created_by: {
              type: "organization",
              username: "acme",
              name: "Acme Corp, Inc.",
              github_url: "https://github.com/acme",
            },
            configuration: {
              hardware: "gpu-t4",
              min_instances: 1,
              max_instances: 5,
            },
          },
        });

      const deployment = await client.deployments.get(
        "acme",
        "my-app-image-generator"
      );

      expect(deployment.owner).toBe("acme");
      expect(deployment.name).toBe("my-app-image-generator");
      expect(deployment.current_release.model).toBe("stability-ai/sdxl");
    });
    // Add more tests for error handling, edge cases, etc.
  });

  describe("deployments.create", () => {
    test("Calls the correct API route with the correct payload", async () => {
      nock(BASE_URL)
        .post("/deployments")
        .reply(200, {
          owner: "acme",
          name: "my-app-image-generator",
          current_release: {
            number: 1,
            model: "stability-ai/sdxl",
            version:
              "da77bc59ee60423279fd632efb4795ab731d9e3ca9705ef3341091fb989b7eaf",
            created_at: "2024-02-15T16:32:57.018467Z",
            created_by: {
              type: "organization",
              username: "acme",
              name: "Acme Corp, Inc.",
              github_url: "https://github.com/acme",
            },
            configuration: {
              hardware: "gpu-t4",
              min_instances: 1,
              max_instances: 5,
            },
          },
        });

      const deployment = await client.deployments.create({
        name: "my-app-image-generator",
        model: "stability-ai/sdxl",
        version:
          "da77bc59ee60423279fd632efb4795ab731d9e3ca9705ef3341091fb989b7eaf",
        hardware: "gpu-t4",
        min_instances: 1,
        max_instances: 5,
      });

      expect(deployment.owner).toBe("acme");
      expect(deployment.name).toBe("my-app-image-generator");
      expect(deployment.current_release.model).toBe("stability-ai/sdxl");
    });
    // Add more tests for error handling, edge cases, etc.
  });

  describe("deployments.update", () => {
    test("Calls the correct API route with the correct payload", async () => {
      nock(BASE_URL)
        .patch("/deployments/acme/my-app-image-generator")
        .reply(200, {
          owner: "acme",
          name: "my-app-image-generator",
          current_release: {
            number: 2,
            model: "stability-ai/sdxl",
            version:
              "632231d0d49d34d5c4633bd838aee3d81d936e59a886fbf28524702003b4c532",
            created_at: "2024-02-16T08:14:22.345678Z",
            created_by: {
              type: "organization",
              username: "acme",
              name: "Acme Corp, Inc.",
              github_url: "https://github.com/acme",
            },
            configuration: {
              hardware: "gpu-a40-large",
              min_instances: 3,
              max_instances: 10,
            },
          },
        });

      const deployment = await client.deployments.update(
        "acme",
        "my-app-image-generator",
        {
          version:
            "632231d0d49d34d5c4633bd838aee3d81d936e59a886fbf28524702003b4c532",
          hardware: "gpu-a40-large",
          min_instances: 3,
          max_instances: 10,
        }
      );

      expect(deployment.current_release.number).toBe(2);
      expect(deployment.current_release.version).toBe(
        "632231d0d49d34d5c4633bd838aee3d81d936e59a886fbf28524702003b4c532"
      );
      expect(deployment.current_release.configuration.hardware).toBe(
        "gpu-a40-large"
      );
      expect(deployment.current_release.configuration.min_instances).toBe(3);
      expect(deployment.current_release.configuration.max_instances).toBe(10);
    });
    // Add more tests for error handling, edge cases, etc.
  });

  describe("deployments.list", () => {
    test("Calls the correct API route", async () => {
      nock(BASE_URL)
        .get("/deployments")
        .reply(200, {
          next: null,
          previous: null,
          results: [
            {
              owner: "acme",
              name: "my-app-image-generator",
              current_release: {
                // ...
              },
            },
            // ...
          ],
        });

      const deployments = await client.deployments.list();
      expect(deployments.results.length).toBe(1);
    });
    // Add more tests for pagination, error handling, edge cases, etc.
  });

  describe("predictions.create with model", () => {
    test("Calls the correct API route with the correct payload", async () => {
      nock(BASE_URL)
        .post("/models/meta/llama-2-70b-chat/predictions")
        .reply(200, {
          id: "heat2o3bzn3ahtr6bjfftvbaci",
          model: "replicate/lifeboat-70b",
          version: "d-c6559c5791b50af57b69f4a73f8e021c",
          input: {
            prompt: "Please write a haiku about llamas.",
          },
          logs: "",
          error: null,
          status: "starting",
          created_at: "2023-11-27T13:35:45.99397566Z",
          urls: {
            cancel:
              "https://api.replicate.com/v1/predictions/heat2o3bzn3ahtr6bjfftvbaci/cancel",
            get: "https://api.replicate.com/v1/predictions/heat2o3bzn3ahtr6bjfftvbaci",
          },
        });
      const prediction = await client.predictions.create({
        model: "meta/llama-2-70b-chat",
        input: {
          prompt: "Please write a haiku about llamas.",
        },
        webhook: "http://test.host/webhook",
        webhook_events_filter: ["output", "completed"],
      });
      expect(prediction.id).toBe("heat2o3bzn3ahtr6bjfftvbaci");
    });
    // Add more tests for error handling, edge cases, etc.
  });

  describe("hardware.list", () => {
    test("Calls the correct API route", async () => {
      nock(BASE_URL)
        .get("/hardware")
        .reply(200, [
          { name: "CPU", sku: "cpu" },
          { name: "Nvidia T4 GPU", sku: "gpu-t4" },
          { name: "Nvidia A40 GPU", sku: "gpu-a40-small" },
          { name: "Nvidia A40 (Large) GPU", sku: "gpu-a40-large" },
        ]);

      const hardware = await client.hardware.list();
      expect(hardware.length).toBe(4);
      expect(hardware[0].name).toBe("CPU");
      expect(hardware[0].sku).toBe("cpu");
    });
    // Add more tests for error handling, edge cases, etc.
  });

  describe("models.create", () => {
    test("Calls the correct API route with the correct payload", async () => {
      nock(BASE_URL).post("/models").reply(200, {
        owner: "test-owner",
        name: "test-model",
        visibility: "public",
        hardware: "cpu",
        description: "A test model",
      });

      const model = await client.models.create("test-owner", "test-model", {
        visibility: "public",
        hardware: "cpu",
        description: "A test model",
      });

      expect(model.owner).toBe("test-owner");
      expect(model.name).toBe("test-model");
      expect(model.visibility).toBe("public");
      // expect(model.hardware).toBe('cpu');
      expect(model.description).toBe("A test model");
    });
  });

  describe("run", () => {
    test("Calls the correct API routes", async () => {
      nock(BASE_URL)
        .post("/predictions")
        .reply(201, {
          id: "ufawqhfynnddngldkgtslldrkq",
          status: "starting",
          logs: null,
        })
        .get("/predictions/ufawqhfynnddngldkgtslldrkq")
        .reply(200, {
          id: "ufawqhfynnddngldkgtslldrkq",
          status: "processing",
          logs: [
            "Using seed: 12345",
            "0%|          | 0/5 [00:00<?, ?it/s]",
            "20%|██        | 1/5 [00:00<00:01, 21.38it/s]",
            "40%|████▍     | 2/5 [00:01<00:01, 22.46it/s]",
          ].join("\n"),
        })
        .get("/predictions/ufawqhfynnddngldkgtslldrkq")
        .reply(200, {
          id: "ufawqhfynnddngldkgtslldrkq",
          status: "processing",
          logs: [
            "Using seed: 12345",
            "0%|          | 0/5 [00:00<?, ?it/s]",
            "20%|██        | 1/5 [00:00<00:01, 21.38it/s]",
            "40%|████▍     | 2/5 [00:01<00:01, 22.46it/s]",
            "60%|████▍     | 3/5 [00:01<00:01, 22.46it/s]",
            "80%|████████  | 4/5 [00:01<00:00, 22.86it/s]",
          ].join("\n"),
        })
        .get("/predictions/ufawqhfynnddngldkgtslldrkq")
        .reply(200, {
          id: "ufawqhfynnddngldkgtslldrkq",
          status: "succeeded",
          output: "Goodbye!",
          logs: [
            "Using seed: 12345",
            "0%|          | 0/5 [00:00<?, ?it/s]",
            "20%|██        | 1/5 [00:00<00:01, 21.38it/s]",
            "40%|████▍     | 2/5 [00:01<00:01, 22.46it/s]",
            "60%|████▍     | 3/5 [00:01<00:01, 22.46it/s]",
            "80%|████████  | 4/5 [00:01<00:00, 22.86it/s]",
            "100%|██████████| 5/5 [00:02<00:00, 22.26it/s]",
          ].join("\n"),
        });

      const callback = jest.fn();

      const output = await client.run(
        "owner/model:5c7d5dc6dd8bf75c1acaa8565735e7986bc5b66206b55cca93cb72c9bf15ccaa",
        {
          input: { text: "Hello, world!" },
          wait: { interval: 1 },
        },
        (prediction) => {
          const progress = parseProgressFromLogs(prediction);
          callback(prediction, progress);
        }
      );

      expect(output).toBe("Goodbye!");

      expect(callback).toHaveBeenNthCalledWith(
        1,
        {
          id: "ufawqhfynnddngldkgtslldrkq",
          status: "starting",
          logs: null,
        },
        null
      );

      expect(callback).toHaveBeenNthCalledWith(
        2,
        {
          id: "ufawqhfynnddngldkgtslldrkq",
          status: "processing",
          logs: expect.any(String),
        },
        {
          percentage: 0.4,
          current: 2,
          total: 5,
        }
      );

      expect(callback).toHaveBeenNthCalledWith(
        3,
        {
          id: "ufawqhfynnddngldkgtslldrkq",
          status: "processing",
          logs: expect.any(String),
        },
        {
          percentage: 0.8,
          current: 4,
          total: 5,
        }
      );

      expect(callback).toHaveBeenNthCalledWith(
        4,
        {
          id: "ufawqhfynnddngldkgtslldrkq",
          status: "succeeded",
          logs: expect.any(String),
          output: "Goodbye!",
        },
        {
          percentage: 1.0,
          current: 5,
          total: 5,
        }
      );

      expect(callback).toHaveBeenCalledTimes(4);
    });

    test("Calls the correct API routes for a model", async () => {
      nock(BASE_URL)
        .post("/models/replicate/hello-world/predictions")
        .reply(201, {
          id: "ufawqhfynnddngldkgtslldrkq",
          status: "starting",
        })
        .get("/predictions/ufawqhfynnddngldkgtslldrkq")
        .twice()
        .reply(200, {
          id: "ufawqhfynnddngldkgtslldrkq",
          status: "processing",
        })
        .get("/predictions/ufawqhfynnddngldkgtslldrkq")
        .reply(200, {
          id: "ufawqhfynnddngldkgtslldrkq",
          status: "succeeded",
          output: "Goodbye!",
        });

      const progress = jest.fn();

      const output = await client.run(
        "replicate/hello-world",
        {
          input: { text: "Hello, world!" },
          wait: { interval: 1 },
        },
        progress
      );

      expect(output).toBe("Goodbye!");

      expect(progress).toHaveBeenNthCalledWith(1, {
        id: "ufawqhfynnddngldkgtslldrkq",
        status: "starting",
      });

      expect(progress).toHaveBeenNthCalledWith(2, {
        id: "ufawqhfynnddngldkgtslldrkq",
        status: "processing",
      });

      expect(progress).toHaveBeenNthCalledWith(3, {
        id: "ufawqhfynnddngldkgtslldrkq",
        status: "processing",
      });

      expect(progress).toHaveBeenNthCalledWith(4, {
        id: "ufawqhfynnddngldkgtslldrkq",
        status: "succeeded",
        output: "Goodbye!",
      });

      expect(progress).toHaveBeenCalledTimes(4);
    });

    test("Does not throw an error for identifier containing hyphen and full stop", async () => {
      nock(BASE_URL)
        .post("/predictions")
        .reply(200, {
          id: "ufawqhfynnddngldkgtslldrkq",
          status: "processing",
        })
        .get("/predictions/ufawqhfynnddngldkgtslldrkq")
        .reply(200, {
          id: "ufawqhfynnddngldkgtslldrkq",
          status: "succeeded",
          output: "foobar",
        });

      await expect(
        client.run("a/b-1.0:abc123", { input: { text: "Hello, world!" } })
      ).resolves.not.toThrow();
    });

    test("Throws an error for invalid identifiers", async () => {
      const options = { input: { text: "Hello, world!" } };

      // @ts-expect-error
      await expect(client.run("owner:abc123", options)).rejects.toThrow();

      await expect(client.run("/model:abc123", options)).rejects.toThrow();

      // @ts-expect-error
      await expect(client.run(":abc123", options)).rejects.toThrow();
    });

    test("Throws an error if webhook URL is invalid", async () => {
      await expect(async () => {
        await client.run(
          "owner/model:5c7d5dc6dd8bf75c1acaa8565735e7986bc5b66206b55cca93cb72c9bf15ccaa",
          {
            input: {
              text: "Alice",
            },
            webhook: "invalid-url",
          }
        );
      }).rejects.toThrow("Invalid webhook URL");
    });

    test("Aborts the operation when abort signal is invoked", async () => {
      const controller = new AbortController();
      const { signal } = controller;
      let body: Record<string, unknown> | undefined;

      const scope = nock(BASE_URL)
        .post("/predictions", (_body) => {
          // Should not pass the signal object in the body.
          body = _body;
          controller.abort();
          return _body;
        })
        .reply(201, {
          id: "ufawqhfynnddngldkgtslldrkq",
          status: "processing",
        })
        .persist()
        .get("/predictions/ufawqhfynnddngldkgtslldrkq")
        .reply(200, {
          id: "ufawqhfynnddngldkgtslldrkq",
          status: "processing",
        })
        .post("/predictions/ufawqhfynnddngldkgtslldrkq/cancel")
        .reply(200, {
          id: "ufawqhfynnddngldkgtslldrkq",
          status: "canceled",
        });

      const onProgress = jest.fn();
      const output = await client.run(
        "owner/model:5c7d5dc6dd8bf75c1acaa8565735e7986bc5b66206b55cca93cb72c9bf15ccaa",
        {
          input: { text: "Hello, world!" },
          signal,
        },
        onProgress
      );

      expect(body).toBeDefined();
      expect(body?.["signal"]).toBeUndefined();
      expect(signal.aborted).toBe(true);
      expect(output).toBeUndefined();

      expect(onProgress).toHaveBeenNthCalledWith(
        1,
        expect.objectContaining({
          status: "processing",
        })
      );
      expect(onProgress).toHaveBeenNthCalledWith(
        2,
        expect.objectContaining({
          status: "processing",
        })
      );
      expect(onProgress).toHaveBeenNthCalledWith(
        3,
        expect.objectContaining({
          status: "canceled",
        })
      );

      scope.done();
    });
  });

  describe("webhooks.default.secret.get", () => {
    test("Calls the correct API route", async () => {
      nock(BASE_URL).get("/webhooks/default/secret").reply(200, {
        key: "whsec_5WbX5kEWLlfzsGNjH64I8lOOqUB6e8FH",
      });

      const secret = await client.webhooks.default.secret.get();
      expect(secret.key).toBe("whsec_5WbX5kEWLlfzsGNjH64I8lOOqUB6e8FH");
    });

    test("Can be used to validate webhook", async () => {
      // Test case from https://github.com/svix/svix-webhooks/blob/b41728cd98a7e7004a6407a623f43977b82fcba4/javascript/src/webhook.test.ts#L190-L200
      const request = new Request("http://test.host/webhook", {
        method: "POST",
        headers: {
          "Content-Type": "application/json",
          "Webhook-ID": "msg_p5jXN8AQM9LWM0D4loKWxJek",
          "Webhook-Timestamp": "1614265330",
          "Webhook-Signature":
            "v1,g0hM9SsE+OTPJTGt/tmIKtSyZlE3uFJELVlNIOLJ1OE=",
        },
        body: `{"test": 2432232314}`,
      });

      // This is a test secret and should not be used in production
      const secret = "whsec_MfKQ9r8GKYqrTwjUPD8ILPZIo2LaLaSw";

      const isValid = await validateWebhook(request, secret);
      expect(isValid).toBe(true);
    });

    // Add more tests for error handling, edge cases, etc.
  });

  // Continue with tests for other methods

  describe("createReadableStream", () => {
    function createStream(body: string | ReadableStream, status = 200) {
      const streamEndpoint = "https://stream.replicate.com/fake_stream";
      const fetch = jest.fn((url) => {
        if (url !== streamEndpoint) {
          throw new Error(`Unmocked call to fetch() with url: ${url}`);
        }
        return new Response(body, { status });
      });
      return createReadableStream({
        url: streamEndpoint,
        fetch: fetch as any,
      });
    }

    test("consumes a server sent event stream", async () => {
      const stream = createStream(
        `
        event: output
        id: EVENT_1
        data: hello world

        event: done
        id: EVENT_2
        data: {}

      `.replace(/^[ ]+/gm, "")
      );

      const iterator = stream[Symbol.asyncIterator]();
      expect(await iterator.next()).toEqual({
        done: false,
        value: { event: "output", id: "EVENT_1", data: "hello world" },
      });
      expect(await iterator.next()).toEqual({
        done: false,
        value: { event: "done", id: "EVENT_2", data: "{}" },
      });
      expect(await iterator.next()).toEqual({ done: true });
      expect(await iterator.next()).toEqual({ done: true });
    });

    test("consumes multiple events", async () => {
      const stream = createStream(
        `
        event: output
        id: EVENT_1
        data: hello world

        event: output
        id: EVENT_2
        data: hello dave

        event: done
        id: EVENT_3
        data: {}

      `.replace(/^[ ]+/gm, "")
      );

      const iterator = stream[Symbol.asyncIterator]();

      expect(await iterator.next()).toEqual({
        done: false,
        value: { event: "output", id: "EVENT_1", data: "hello world" },
      });
      expect(await iterator.next()).toEqual({
        done: false,
        value: { event: "output", id: "EVENT_2", data: "hello dave" },
      });
      expect(await iterator.next()).toEqual({
        done: false,
        value: { event: "done", id: "EVENT_3", data: "{}" },
      });
      expect(await iterator.next()).toEqual({ done: true });
      expect(await iterator.next()).toEqual({ done: true });
    });

    test("ignores unexpected characters", async () => {
      const stream = createStream(
        `
        : hi

        event: output
        id: EVENT_1
        data: hello world

        event: done
        id: EVENT_2
        data: {}

      `.replace(/^[ ]+/gm, "")
      );

      const iterator = stream[Symbol.asyncIterator]();

      expect(await iterator.next()).toEqual({
        done: false,
        value: { event: "output", id: "EVENT_1", data: "hello world" },
      });
      expect(await iterator.next()).toEqual({
        done: false,
        value: { event: "done", id: "EVENT_2", data: "{}" },
      });
      expect(await iterator.next()).toEqual({ done: true });
      expect(await iterator.next()).toEqual({ done: true });
    });

    test("supports multiple lines of output in a single event", async () => {
      const stream = createStream(
        `
        : hi

        event: output
        id: EVENT_1
        data: hello,
        data: this is a new line,
        data: and this is a new line too

        event: done
        id: EVENT_2
        data: {}

      `.replace(/^[ ]+/gm, "")
      );

      const iterator = stream[Symbol.asyncIterator]();

      expect(await iterator.next()).toEqual({
        done: false,
        value: {
          event: "output",
          id: "EVENT_1",
          data: "hello,\nthis is a new line,\nand this is a new line too",
        },
      });
      expect(await iterator.next()).toEqual({
        done: false,
        value: { event: "done", id: "EVENT_2", data: "{}" },
      });
      expect(await iterator.next()).toEqual({ done: true });
      expect(await iterator.next()).toEqual({ done: true });
    });

    test("supports the server writing data lines in multiple chunks", async () => {
      // Create a stream of data chunks split on the pipe character for readability.
      const data = `
        event: output
        id: EVENT_1
        data: hello,|
        data: this is a new line,|
        data: and this is a new line too

        event: done
        id: EVENT_2
        data: {}

      `.replace(/^[ ]+/gm, "");

      const chunks = data.split("|");
      const body = new ReadableStream({
        async pull(controller) {
          if (chunks.length) {
            await new Promise((resolve) => setTimeout(resolve, 1));
            const chunk = chunks.shift();
            controller.enqueue(new TextEncoder().encode(chunk));
          }
        },
      });

      const stream = createStream(body);

      // Consume the iterator in parallel to writing it.
      const iterator = stream[Symbol.asyncIterator]();
      expect(await iterator.next()).toEqual({
        done: false,
        value: {
          event: "output",
          id: "EVENT_1",
          data: "hello,\nthis is a new line,\nand this is a new line too",
        },
      });
      expect(await iterator.next()).toEqual({
        done: false,
        value: { event: "done", id: "EVENT_2", data: "{}" },
      });
      expect(await iterator.next()).toEqual({ done: true });

      // Wait for both promises to resolve.
    });

    test("supports the server writing data in a complete mess", async () => {
      const body = new ReadableStream({
        async pull(controller) {
          if (chunks.length) {
            await new Promise((resolve) => setTimeout(resolve, 1));
            const chunk = chunks.shift();
            controller.enqueue(new TextEncoder().encode(chunk));
          }
        },
      });
      const stream = createStream(body);

      // Create a stream of data chunks split on the pipe character for readability.
      const data = `
        : hi

        ev|ent: output
        id: EVENT_1
        data: hello,
        data: this |is a new line,|
        data: and this is |a new line too

        event: d|one
        id: EVENT|_2
        data: {}

      `.replace(/^[ ]+/gm, "");

      const chunks = data.split("|");

      const iterator = stream[Symbol.asyncIterator]();
      expect(await iterator.next()).toEqual({
        done: false,
        value: {
          event: "output",
          id: "EVENT_1",
          data: "hello,\nthis is a new line,\nand this is a new line too",
        },
      });
      expect(await iterator.next()).toEqual({
        done: false,
        value: { event: "done", id: "EVENT_2", data: "{}" },
      });
      expect(await iterator.next()).toEqual({ done: true });
    });

    test("supports ending without a done", async () => {
      const stream = createStream(
        `
        event: output
        id: EVENT_1
        data: hello world

      `.replace(/^[ ]+/gm, "")
      );

      const iterator = stream[Symbol.asyncIterator]();
      expect(await iterator.next()).toEqual({
        done: false,
        value: { event: "output", id: "EVENT_1", data: "hello world" },
      });
      expect(await iterator.next()).toEqual({ done: true });
    });

    test("an error event in the stream raises an exception", async () => {
      const stream = createStream(
        `
        event: output
        id: EVENT_1
        data: hello world

        event: error
        id: EVENT_2
        data: An unexpected error occurred

      `.replace(/^[ ]+/gm, "")
      );

      const iterator = stream[Symbol.asyncIterator]();
      expect(await iterator.next()).toEqual({
        done: false,
        value: { event: "output", id: "EVENT_1", data: "hello world" },
      });
      await expect(iterator.next()).rejects.toThrowError(
        "An unexpected error occurred"
      );
      expect(await iterator.next()).toEqual({ done: true });
    });

    test("an error when fetching the stream raises an exception", async () => {
      const stream = createStream("{}", 500);
      const iterator = stream[Symbol.asyncIterator]();
      await expect(iterator.next()).rejects.toThrowError(
        "Request to https://stream.replicate.com/fake_stream failed with status 500"
      );
      expect(await iterator.next()).toEqual({ done: true });
    });
  });
});