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denoland-deno/std/examples/tests/xeval_test.ts
Bartek Iwańczuk a913b7a1ba
BREAKING: remove CLI 'deno script.ts' hack (#5026)
This PR removes the hack in CLI that allows to run scripts with shorthand: deno script.ts.

Removing this functionality because it hacks around short-comings of clap our CLI parser. We agree that this shorthand syntax is desirable, but it needs to be rethinked and reimplemented. For 1.0 we should go with conservative approach that is correct.
2020-05-04 13:03:30 +02:00

57 lines
1.7 KiB
TypeScript

// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import { xeval } from "../xeval.ts";
import { stringsReader } from "../../io/util.ts";
import { decode, encode } from "../../encoding/utf8.ts";
import {
assertEquals,
assertStrContains,
assert,
} from "../../testing/asserts.ts";
const { execPath, run } = Deno;
Deno.test("xevalSuccess", async function (): Promise<void> {
const chunks: string[] = [];
await xeval(stringsReader("a\nb\nc"), ($): number => chunks.push($));
assertEquals(chunks, ["a", "b", "c"]);
});
Deno.test("xevalDelimiter", async function (): Promise<void> {
const chunks: string[] = [];
await xeval(stringsReader("!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 = run({
cmd: [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 = run({
cmd: [execPath(), "run", xevalPath, "("],
stdin: "null",
stdout: "piped",
stderr: "piped",
});
assertEquals(await p.status(), { code: 1, success: false });
assertEquals(decode(await p.output()), "");
assertStrContains(decode(await p.stderrOutput()), "Uncaught SyntaxError");
p.close();
});