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denoland-deno/tests/unit_node/util_test.ts

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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
import {
assert,
assertEquals,
assertStrictEquals,
assertThrows,
} from "@std/assert";
import { stripAnsiCode } from "@std/fmt/colors";
import * as util from "node:util";
import utilDefault from "node:util";
import { Buffer } from "node:buffer";
Deno.test({
name: "[util] format",
fn() {
assertEquals(util.format("%o", [10, 11]), "[ 10, 11, [length]: 2 ]");
},
});
Deno.test({
name: "[util] inspect.custom",
fn() {
assertEquals(util.inspect.custom, Symbol.for("nodejs.util.inspect.custom"));
},
});
Deno.test({
name: "[util] inspect",
fn() {
assertEquals(stripAnsiCode(util.inspect({ foo: 123 })), "{ foo: 123 }");
assertEquals(stripAnsiCode(util.inspect("foo")), "'foo'");
assertEquals(
stripAnsiCode(util.inspect("Deno's logo is so cute.")),
`"Deno's logo is so cute."`,
);
assertEquals(
stripAnsiCode(util.inspect([1, 2, 3, 4, 5, 6, 7])),
`[
1, 2, 3, 4,
5, 6, 7
]`,
);
},
});
Deno.test({
name: "[util] isBoolean",
fn() {
assert(util.isBoolean(true));
assert(!util.isBoolean(new Boolean()));
assert(!util.isBoolean(new Boolean(true)));
assert(util.isBoolean(false));
assert(!util.isBoolean("deno"));
assert(!util.isBoolean("true"));
},
});
Deno.test({
name: "[util] isNull",
fn() {
let n;
assert(util.isNull(null));
assert(!util.isNull(n));
assert(!util.isNull(0));
assert(!util.isNull({}));
},
});
Deno.test({
name: "[util] isNullOrUndefined",
fn() {
let n;
assert(util.isNullOrUndefined(null));
assert(util.isNullOrUndefined(n));
assert(!util.isNullOrUndefined({}));
assert(!util.isNullOrUndefined("undefined"));
},
});
Deno.test({
name: "[util] isNumber",
fn() {
assert(util.isNumber(666));
assert(!util.isNumber(new Number(666)));
assert(!util.isNumber("999"));
assert(!util.isNumber(null));
},
});
Deno.test({
name: "[util] isString",
fn() {
assert(util.isString("deno"));
assert(!util.isString(new String("DIO")));
assert(!util.isString(1337));
},
});
Deno.test({
name: "[util] isSymbol",
fn() {
assert(util.isSymbol(Symbol()));
assert(!util.isSymbol(Object(Symbol())));
assert(!util.isSymbol(123));
assert(!util.isSymbol("string"));
},
});
Deno.test({
name: "[util] isUndefined",
fn() {
let t;
assert(util.isUndefined(t));
assert(!util.isUndefined("undefined"));
assert(!util.isUndefined({}));
},
});
Deno.test({
name: "[util] isObject",
fn() {
const dio = { stand: "Za Warudo" };
assert(util.isObject(dio));
assert(util.isObject(new RegExp(/Toki Wo Tomare/)));
assert(!util.isObject("Jotaro"));
},
});
Deno.test({
name: "[util] isError",
fn() {
const java = new Error();
const nodejs = Reflect.construct(Error, [], Object);
const bun = new DOMException();
const deno = "Future";
assert(util.isError(java));
assert(util.isError(nodejs));
assert(util.isError(bun));
assert(!util.isError(deno));
},
});
Deno.test({
name: "[util] isFunction",
fn() {
const f = function () {};
assert(util.isFunction(f));
assert(!util.isFunction({}));
assert(!util.isFunction(new RegExp(/f/)));
},
});
Deno.test({
name: "[util] isRegExp",
fn() {
assert(util.isRegExp(new RegExp(/f/)));
assert(util.isRegExp(/fuManchu/));
assert(!util.isRegExp({ evil: "eye" }));
assert(!util.isRegExp(null));
},
});
Deno.test({
name: "[util] isArray",
fn() {
assert(util.isArray([]));
assert(!util.isArray({ yaNo: "array" }));
assert(!util.isArray(null));
},
});
Deno.test({
name: "[util] isPrimitive",
fn() {
const stringType = "hasti";
const booleanType = true;
const integerType = 2;
const symbolType = Symbol("anything");
const functionType = function doBest() {};
const objectType = { name: "ali" };
const arrayType = [1, 2, 3];
assert(util.isPrimitive(stringType));
assert(util.isPrimitive(booleanType));
assert(util.isPrimitive(integerType));
assert(util.isPrimitive(symbolType));
assert(util.isPrimitive(null));
assert(util.isPrimitive(undefined));
assert(!util.isPrimitive(functionType));
assert(!util.isPrimitive(arrayType));
assert(!util.isPrimitive(objectType));
},
});
Deno.test({
name: "[util] isDate",
fn() {
// Test verifies the method is exposed. See _util/_util_types_test for details
assert(util.isDate(new Date()));
},
});
Deno.test({
name: "[util] isBuffer",
fn() {
assert(util.isBuffer(new Buffer(4)));
assert(!util.isBuffer(new Uint8Array(4)));
},
});
Deno.test({
name: "[util] types.isTypedArray",
fn() {
assert(util.types.isTypedArray(new Buffer(4)));
assert(util.types.isTypedArray(new Uint8Array(4)));
assert(!util.types.isTypedArray(new DataView(new ArrayBuffer(4))));
},
});
Deno.test({
name: "[util] types.isNativeError",
fn() {
assert(util.types.isNativeError(new Error()));
assert(util.types.isNativeError(new TypeError()));
assert(!util.types.isNativeError(new DOMException()));
},
});
Deno.test({
name: "[util] TextDecoder",
fn() {
assert(util.TextDecoder === TextDecoder);
const td: util.TextDecoder = new util.TextDecoder();
assert(td instanceof TextDecoder);
},
});
Deno.test({
name: "[util] TextEncoder",
fn() {
assert(util.TextEncoder === TextEncoder);
const te: util.TextEncoder = new util.TextEncoder();
assert(te instanceof TextEncoder);
},
});
Deno.test({
name: "[util] toUSVString",
fn() {
assertEquals(util.toUSVString("foo"), "foo");
assertEquals(util.toUSVString("bar\ud801"), "bar\ufffd");
},
});
Deno.test({
name: "[util] getSystemErrorName()",
fn() {
type FnTestInvalidArg = (code?: unknown) => void;
assertThrows(
() => (util.getSystemErrorName as FnTestInvalidArg)(),
TypeError,
);
assertThrows(
() => (util.getSystemErrorName as FnTestInvalidArg)(1),
RangeError,
);
assertStrictEquals(util.getSystemErrorName(-424242), undefined);
switch (Deno.build.os) {
case "windows":
assertStrictEquals(util.getSystemErrorName(-4091), "EADDRINUSE");
break;
case "darwin":
assertStrictEquals(util.getSystemErrorName(-48), "EADDRINUSE");
break;
case "linux":
assertStrictEquals(util.getSystemErrorName(-98), "EADDRINUSE");
break;
}
},
});
Deno.test({
name: "[util] deprecate() works",
fn() {
const fn = util.deprecate(() => {}, "foo");
fn();
},
});
Deno.test({
name: "[util] callbackify() works",
fn() {
const fn = util.callbackify(() => Promise.resolve("foo"));
fn((err, value) => {
assert(err === null);
assert(value === "foo");
});
},
});
Deno.test({
name: "[util] callbackify(undefined) throws",
fn() {
assertThrows(
// @ts-expect-error: testing runtime error
() => util.callbackify(undefined),
TypeError,
'The "original" argument must be of type function',
);
},
});
Deno.test({
name: "[util] parseArgs() with no args works",
fn() {
util.parseArgs({});
},
});
Deno.test("[util] debuglog() and debug()", () => {
assert(typeof util.debug === "function");
assert(typeof util.debuglog === "function");
assertEquals(util.debuglog, util.debug);
assertEquals(utilDefault.debuglog, utilDefault.debug);
});
Deno.test("[util] aborted()", async () => {
const abortController = new AbortController();
let done = false;
const promise = util.aborted(
// deno-lint-ignore no-explicit-any
abortController.signal as any,
abortController.signal,
);
promise.then(() => {
done = true;
});
await new Promise((r) => setTimeout(r, 100));
assertEquals(done, false);
abortController.abort();
await promise;
assertEquals(done, true);
});
Deno.test("[util] styleText()", () => {
const redText = util.styleText("red", "error");
assertEquals(redText, "\x1B[31merror\x1B[39m");
});
Deno.test("[util] styleText() with array of formats", () => {
const colored = util.styleText(["red", "green"], "error");
assertEquals(colored, "\x1b[32m\x1b[31merror\x1b[39m\x1b[39m");
});