integration/bunjs-only-snippets/streams.test.js


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import { expect, it } from "bun:test";

it("exists globally", () => {
  expect(typeof ReadableStream).toBe("function");
  expect(typeof ReadableStreamBYOBReader).toBe("function");
  expect(typeof ReadableStreamBYOBRequest).toBe("function");
  expect(typeof ReadableStreamDefaultController).toBe("function");
  expect(typeof ReadableStreamDefaultReader).toBe("function");
  expect(typeof TransformStream).toBe("function");
  expect(typeof TransformStreamDefaultController).toBe("function");
  expect(typeof WritableStream).toBe("function");
  expect(typeof WritableStreamDefaultController).toBe("function");
  expect(typeof WritableStreamDefaultWriter).toBe("function");
  expect(typeof ByteLengthQueuingStrategy).toBe("function");
  expect(typeof CountQueuingStrategy).toBe("function");
});

it("ReadableStream", async () => {
  var stream = new ReadableStream({
    start(controller) {
      controller.enqueue(Buffer.from("abdefgh"));
    },
    pull(controller) {},
    cancel() {},
    type: "bytes",
  });
  const chunks = [];
  const chunk = await stream.getReader().read();
  chunks.push(chunk.value);
  expect(chunks[0].join("")).toBe(Buffer.from("abdefgh").join(""));
});