-
Notifications
You must be signed in to change notification settings - Fork 577
/
limited_reader_test.ts
33 lines (31 loc) · 1.22 KB
/
limited_reader_test.ts
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
import { assertEquals } from "../testing/asserts.ts";
import { LimitedReader } from "./limited_reader.ts";
import { StringWriter } from "./string_writer.ts";
import { copy } from "../streams/copy.ts";
import { readAll } from "../streams/read_all.ts";
import { StringReader } from "./string_reader.ts";
Deno.test("ioLimitedReader", async function () {
const decoder = new TextDecoder();
let sr = new StringReader("abc");
let r = new LimitedReader(sr, 2);
let buffer = await readAll(r);
assertEquals(decoder.decode(buffer), "ab");
assertEquals(decoder.decode(await readAll(sr)), "c");
sr = new StringReader("abc");
r = new LimitedReader(sr, 3);
buffer = await readAll(r);
assertEquals(decoder.decode(buffer), "abc");
assertEquals((await readAll(r)).length, 0);
sr = new StringReader("abc");
r = new LimitedReader(sr, 4);
buffer = await readAll(r);
assertEquals(decoder.decode(buffer), "abc");
assertEquals((await readAll(r)).length, 0);
});
Deno.test("ioLimitedReader", async function () {
const rb = new StringReader("abc");
const wb = new StringWriter();
await copy(new LimitedReader(rb, -1), wb);
assertEquals(wb.toString(), "");
});