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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
import { assertEquals, assertRejects } from "../testing/asserts.ts";import { LimitedTransformStream } from "./limited_transform_stream.ts";
Deno.test("[streams] LimitedTransformStream", async function () {  const r = new ReadableStream({    start(controller) {      controller.enqueue("foo");      controller.enqueue("foo");      controller.enqueue("foo");      controller.enqueue("foo");      controller.enqueue("foo");      controller.enqueue("foo");      controller.close();    },  });
  const chunks = [];  for await (const chunk of r.pipeThrough(new LimitedTransformStream(3))) {    chunks.push(chunk);  }  assertEquals(chunks.length, 3);});
Deno.test("[streams] LimitedTransformStream error", async function () {  const r = new ReadableStream({    start(controller) {      controller.enqueue("foo");      controller.enqueue("foo");      controller.enqueue("foo");      controller.enqueue("foo");      controller.enqueue("foo");      controller.enqueue("foo");      controller.close();    },  });
  await assertRejects(async () => {    for await (      const _chunk of r.pipeThrough(        new LimitedTransformStream(3, { error: true }),      )    ) {      // needed to read    }  }, RangeError);});