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early_zip_readable_streams_test.ts
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early_zip_readable_streams_test.ts
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// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
import { earlyZipReadableStreams } from "./early_zip_readable_streams.ts";
import { assertEquals } from "../testing/asserts.ts";
Deno.test("[streams] earlyZipReadableStreams short first", async () => {
const textStream = new ReadableStream<string>({
start(controller) {
controller.enqueue("1");
controller.enqueue("2");
controller.enqueue("3");
controller.close();
},
});
const textStream2 = new ReadableStream<string>({
start(controller) {
controller.enqueue("a");
controller.enqueue("b");
controller.enqueue("c");
controller.enqueue("d");
controller.enqueue("e");
controller.close();
},
});
const buf = [];
for await (const s of earlyZipReadableStreams(textStream, textStream2)) {
buf.push(s);
}
assertEquals(buf, [
"1",
"a",
"2",
"b",
"3",
"c",
]);
});
Deno.test("[streams] earlyZipReadableStreams long first", async () => {
const textStream = new ReadableStream<string>({
start(controller) {
controller.enqueue("a");
controller.enqueue("b");
controller.enqueue("c");
controller.enqueue("d");
controller.enqueue("e");
controller.close();
},
});
const textStream2 = new ReadableStream<string>({
start(controller) {
controller.enqueue("1");
controller.enqueue("2");
controller.enqueue("3");
controller.close();
},
});
const buf = [];
for await (const s of earlyZipReadableStreams(textStream, textStream2)) {
buf.push(s);
}
assertEquals(buf, [
"a",
"1",
"b",
"2",
"c",
"3",
"d",
]);
});