2020-02-11 11:24:27 -05:00
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const { copy, test } = Deno;
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2019-03-06 19:42:24 -05:00
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import { assertEquals } from "../testing/asserts.ts";
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2019-02-10 18:49:48 -05:00
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import { MultiReader, StringReader } from "./readers.ts";
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import { StringWriter } from "./writers.ts";
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import { copyN } from "./ioutil.ts";
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2020-04-01 15:23:39 -04:00
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import { decode } from "../encoding/utf8.ts";
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2019-02-10 18:49:48 -05:00
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2019-04-24 07:41:23 -04:00
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test(async function ioStringReader(): Promise<void> {
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2019-02-10 18:49:48 -05:00
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const r = new StringReader("abcdef");
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2019-07-07 15:20:41 -04:00
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const res0 = await r.read(new Uint8Array(6));
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assertEquals(res0, 6);
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const res1 = await r.read(new Uint8Array(6));
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assertEquals(res1, Deno.EOF);
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2019-02-10 18:49:48 -05:00
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});
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2019-04-24 07:41:23 -04:00
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test(async function ioStringReader(): Promise<void> {
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2019-02-10 18:49:48 -05:00
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const r = new StringReader("abcdef");
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const buf = new Uint8Array(3);
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2019-10-05 12:02:34 -04:00
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const res1 = await r.read(buf);
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2019-07-07 15:20:41 -04:00
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assertEquals(res1, 3);
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2019-03-06 19:42:24 -05:00
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assertEquals(decode(buf), "abc");
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2019-10-05 12:02:34 -04:00
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const res2 = await r.read(buf);
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2019-07-07 15:20:41 -04:00
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assertEquals(res2, 3);
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assertEquals(decode(buf), "def");
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2019-10-05 12:02:34 -04:00
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const res3 = await r.read(buf);
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2019-07-07 15:20:41 -04:00
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assertEquals(res3, Deno.EOF);
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2019-03-06 19:42:24 -05:00
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assertEquals(decode(buf), "def");
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2019-02-10 18:49:48 -05:00
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});
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2019-04-24 07:41:23 -04:00
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test(async function ioMultiReader(): Promise<void> {
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2019-02-10 18:49:48 -05:00
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const r = new MultiReader(new StringReader("abc"), new StringReader("def"));
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const w = new StringWriter();
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2020-04-26 16:26:02 -04:00
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const n = await copyN(r, w, 4);
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2019-03-06 19:42:24 -05:00
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assertEquals(n, 4);
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assertEquals(w.toString(), "abcd");
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2020-04-24 18:09:14 -04:00
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await copy(r, w);
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2019-03-06 19:42:24 -05:00
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assertEquals(w.toString(), "abcdef");
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2019-02-10 18:49:48 -05:00
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});
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