57 lines
1.8 KiB
TypeScript
57 lines
1.8 KiB
TypeScript
import { Readable } from "stream";
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import test from "ava";
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import { expect } from "chai";
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import { join } from "../src";
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test.cb("join() joins chunks using the specified separator", t => {
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t.plan(9);
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const source = new Readable({ objectMode: true });
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const expectedParts = ["ab|", "|", "c|d", "|", "|", "|", "e", "|", "|f|"];
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let i = 0;
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source
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.pipe(join("|"))
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.on("data", part => {
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expect(part).to.equal(expectedParts[i]);
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t.pass();
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i++;
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})
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.on("error", t.end)
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.on("end", t.end);
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source.push("ab|");
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source.push("c|d");
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source.push("|");
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source.push("e");
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source.push("|f|");
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source.push(null);
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});
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test.cb(
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"join() joins chunks using the specified separator without breaking up multi-byte characters " +
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"spanning multiple chunks",
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t => {
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t.plan(5);
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const source = new Readable({ objectMode: true });
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const expectedParts = ["ø", "|", "ö", "|", "一"];
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let i = 0;
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source
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.pipe(join("|"))
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.on("data", part => {
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expect(part).to.equal(expectedParts[i]);
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t.pass();
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i++;
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})
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.on("error", t.end)
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.on("end", t.end);
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source.push(Buffer.from("ø").slice(0, 1)); // 2-byte character spanning two chunks
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source.push(Buffer.from("ø").slice(1, 2));
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source.push(Buffer.from("ö").slice(0, 1)); // 2-byte character spanning two chunks
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source.push(Buffer.from("ö").slice(1, 2));
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source.push(Buffer.from("一").slice(0, 1)); // 3-byte character spanning three chunks
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source.push(Buffer.from("一").slice(1, 2));
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source.push(Buffer.from("一").slice(2, 3));
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source.push(null);
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},
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);
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