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xeval_test.ts
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xeval_test.ts
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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
import { xeval } from "./xeval.ts";
import { StringReader } from "../io/readers.ts";
import { assertEquals, assertStringIncludes } from "../testing/asserts.ts";
import { dirname, fromFileUrl } from "../path/mod.ts";
const moduleDir = dirname(fromFileUrl(import.meta.url));
Deno.test("xevalSuccess", async function () {
const chunks: string[] = [];
await xeval(new StringReader("a\nb\nc"), ($): number => chunks.push($));
assertEquals(chunks, ["a", "b", "c"]);
});
Deno.test("xevalDelimiter", async function () {
const chunks: string[] = [];
await xeval(
new StringReader("!MADMADAMADAM!"),
($): number => chunks.push($),
{
delimiter: "MADAM",
},
);
assertEquals(chunks, ["!MAD", "ADAM!"]);
});
const xevalPath = "xeval.ts";
Deno.test({
name: "xevalCliReplvar",
fn: async function () {
const p = Deno.spawnChild(Deno.execPath(), {
args: [
"run",
"--quiet",
xevalPath,
"--replvar=abc",
"console.log(abc)",
],
cwd: moduleDir,
stdin: "piped",
stderr: "null",
});
const writer = p.stdin.getWriter();
await writer.write(new TextEncoder().encode("hello"));
await writer.close();
const { status, stdout } = await p.output();
assertEquals(status, { code: 0, signal: null, success: true });
assertEquals(new TextDecoder().decode(stdout).trimEnd(), "hello");
},
});
Deno.test("xevalCliSyntaxError", async function () {
const { status, stdout, stderr } = await Deno.spawn(Deno.execPath(), {
args: ["run", "--quiet", xevalPath, "("],
cwd: moduleDir,
});
const decoder = new TextDecoder();
assertEquals(status.code, 1);
assertEquals(status.success, false);
assertEquals(decoder.decode(stdout), "");
assertStringIncludes(decoder.decode(stderr), "SyntaxError");
});