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denoland-deno/std/examples/tests/xeval_test.ts
2020-07-14 15:24:17 -04:00

66 lines
1.8 KiB
TypeScript

// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import { xeval } from "../xeval.ts";
import { StringReader } from "../../io/readers.ts";
import { decode, encode } from "../../encoding/utf8.ts";
import {
assertEquals,
assertStringContains,
assert,
} from "../../testing/asserts.ts";
Deno.test("xevalSuccess", async function (): Promise<void> {
const chunks: string[] = [];
await xeval(new StringReader("a\nb\nc"), ($): number => chunks.push($));
assertEquals(chunks, ["a", "b", "c"]);
});
Deno.test("xevalDelimiter", async function (): Promise<void> {
const chunks: string[] = [];
await xeval(
new StringReader("!MADMADAMADAM!"),
($): number => chunks.push($),
{
delimiter: "MADAM",
},
);
assertEquals(chunks, ["!MAD", "ADAM!"]);
});
const xevalPath = "examples/xeval.ts";
Deno.test({
name: "xevalCliReplvar",
fn: async function (): Promise<void> {
const p = Deno.run({
cmd: [
Deno.execPath(),
"run",
xevalPath,
"--replvar=abc",
"console.log(abc)",
],
stdin: "piped",
stdout: "piped",
stderr: "null",
});
assert(p.stdin != null);
await p.stdin.write(encode("hello"));
p.stdin.close();
assertEquals(await p.status(), { code: 0, success: true });
assertEquals(decode(await p.output()).trimEnd(), "hello");
p.close();
},
});
Deno.test("xevalCliSyntaxError", async function (): Promise<void> {
const p = Deno.run({
cmd: [Deno.execPath(), "run", xevalPath, "("],
stdin: "null",
stdout: "piped",
stderr: "piped",
});
assertEquals(await p.status(), { code: 1, success: false });
assertEquals(decode(await p.output()), "");
assertStringContains(decode(await p.stderrOutput()), "Uncaught SyntaxError");
p.close();
});