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Diffstat (limited to 'std/node/_util/_util_promisify_test.ts')
-rw-r--r-- | std/node/_util/_util_promisify_test.ts | 236 |
1 files changed, 0 insertions, 236 deletions
diff --git a/std/node/_util/_util_promisify_test.ts b/std/node/_util/_util_promisify_test.ts deleted file mode 100644 index 39f7de75c..000000000 --- a/std/node/_util/_util_promisify_test.ts +++ /dev/null @@ -1,236 +0,0 @@ -// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license. -// -// Adapted from Node.js. Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. -import { - assert, - assertEquals, - assertStrictEquals, - assertThrowsAsync, -} from "../../testing/asserts.ts"; -import { promisify } from "./_util_promisify.ts"; -import * as fs from "../fs.ts"; - -// deno-lint-ignore no-explicit-any -type VoidFunction = (...args: any[]) => void; - -const readFile = promisify(fs.readFile); -const customPromisifyArgs = Symbol.for("nodejs.util.promisify.customArgs"); - -Deno.test( - "Errors should reject the promise", - async function testPromiseRejection() { - await assertThrowsAsync(() => readFile("/dontexist"), Deno.errors.NotFound); - }, -); - -Deno.test("Promisify.custom", async function testPromisifyCustom() { - function fn(): void {} - - function promisifedFn(): void {} - // @ts-expect-error TypeScript (as of 3.7) does not support indexing namespaces by symbol - fn[promisify.custom] = promisifedFn; - - const promisifiedFnA = promisify(fn); - const promisifiedFnB = promisify(promisifiedFnA); - assertStrictEquals(promisifiedFnA, promisifedFn); - assertStrictEquals(promisifiedFnB, promisifedFn); - - await promisifiedFnA; - await promisifiedFnB; -}); - -Deno.test("promiisfy.custom symbol", function testPromisifyCustomSymbol() { - function fn(): void {} - - function promisifiedFn(): void {} - - // util.promisify.custom is a shared symbol which can be accessed - // as `Symbol.for("nodejs.util.promisify.custom")`. - const kCustomPromisifiedSymbol = Symbol.for("nodejs.util.promisify.custom"); - // @ts-expect-error TypeScript (as of 3.7) does not support indexing namespaces by symbol - fn[kCustomPromisifiedSymbol] = promisifiedFn; - - assertStrictEquals(kCustomPromisifiedSymbol, promisify.custom); - assertStrictEquals(promisify(fn), promisifiedFn); - assertStrictEquals(promisify(promisify(fn)), promisifiedFn); -}); - -Deno.test("Invalid argument should throw", function testThrowInvalidArgument() { - function fn(): void {} - // @ts-expect-error TypeScript (as of 3.7) does not support indexing namespaces by symbol - fn[promisify.custom] = 42; - try { - promisify(fn); - } catch (e) { - assertStrictEquals(e.code, "ERR_INVALID_ARG_TYPE"); - assert(e instanceof TypeError); - } -}); - -Deno.test("Custom promisify args", async function testPromisifyCustomArgs() { - const firstValue = 5; - const secondValue = 17; - - function fn(callback: VoidFunction): void { - callback(null, firstValue, secondValue); - } - - // @ts-expect-error TypeScript (as of 3.7) does not support indexing namespaces by symbol - fn[customPromisifyArgs] = ["first", "second"]; - - const obj = await promisify(fn)(); - assertEquals(obj, { first: firstValue, second: secondValue }); -}); - -Deno.test( - "Multiple callback args without custom promisify args", - async function testPromisifyWithoutCustomArgs() { - function fn(callback: VoidFunction): void { - callback(null, "foo", "bar"); - } - const value = await promisify(fn)(); - assertStrictEquals(value, "foo"); - }, -); - -Deno.test( - "Undefined resolved value", - async function testPromisifyWithUndefinedResolvedValue() { - function fn(callback: VoidFunction): void { - callback(null); - } - const value = await promisify(fn)(); - assertStrictEquals(value, undefined); - }, -); - -Deno.test( - "Undefined resolved value II", - async function testPromisifyWithUndefinedResolvedValueII() { - function fn(callback: VoidFunction): void { - callback(); - } - const value = await promisify(fn)(); - assertStrictEquals(value, undefined); - }, -); - -Deno.test( - "Resolved value: number", - async function testPromisifyWithNumberResolvedValue() { - function fn(err: Error | null, val: number, callback: VoidFunction): void { - callback(err, val); - } - const value = await promisify(fn)(null, 42); - assertStrictEquals(value, 42); - }, -); - -Deno.test( - "Rejected value", - async function testPromisifyWithNumberRejectedValue() { - function fn(err: Error | null, val: null, callback: VoidFunction): void { - callback(err, val); - } - await assertThrowsAsync( - () => promisify(fn)(new Error("oops"), null), - Error, - "oops", - ); - }, -); - -Deno.test("Rejected value", async function testPromisifyWithAsObjectMethod() { - const o: { fn?: VoidFunction } = {}; - const fn = promisify(function (this: unknown, cb: VoidFunction): void { - cb(null, this === o); - }); - - o.fn = fn; - - const val = await o.fn(); - assert(val); -}); - -Deno.test( - "Multiple callback", - async function testPromisifyWithMultipleCallback() { - const err = new Error( - "Should not have called the callback with the error.", - ); - const stack = err.stack; - - const fn = promisify(function (cb: VoidFunction): void { - cb(null); - cb(err); - }); - - await fn(); - await Promise.resolve(); - return assertStrictEquals(stack, err.stack); - }, -); - -Deno.test("Promisify a promise", function testPromisifyPromise() { - function c(): void {} - const a = promisify(function (): void {}); - const b = promisify(a); - assert(c !== a); - assertStrictEquals(a, b); -}); - -Deno.test("Test error", async function testInvalidArguments() { - let errToThrow; - - const thrower = promisify(function ( - a: number, - b: number, - c: number, - cb: VoidFunction, - ): void { - errToThrow = new Error(`${a}-${b}-${c}-${cb}`); - throw errToThrow; - }); - - try { - await thrower(1, 2, 3); - throw new Error(`should've failed`); - } catch (e) { - assertStrictEquals(e, errToThrow); - } -}); - -Deno.test("Test invalid arguments", function testInvalidArguments() { - [undefined, null, true, 0, "str", {}, [], Symbol()].forEach((input) => { - try { - // @ts-expect-error TypeScript - promisify(input); - } catch (e) { - assertStrictEquals(e.code, "ERR_INVALID_ARG_TYPE"); - assert(e instanceof TypeError); - assertEquals( - e.message, - `The "original" argument must be of type Function. Received ${typeof input}`, - ); - } - }); -}); |