108 lines
No EOL
3.3 KiB
TypeScript
108 lines
No EOL
3.3 KiB
TypeScript
// Copyright 2016-2018, Pulumi Corporation.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// tslint:disable
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import * as assert from "assert";
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import { asyncTest } from "./util";
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import { promiseResult, liftProperties } from "../utils";
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describe("deasync", () => {
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it("handles simple promise", () => {
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const actual = 4;
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const promise = new Promise<number>((resolve) => {
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resolve(actual);
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});
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const result = promiseResult(promise);
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assert.equal(result, actual);
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});
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it("handles rejected promise", () => {
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const message = "etc";
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const promise = new Promise<number>((resolve, reject) => {
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reject(new Error(message));
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});
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try {
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const result = promiseResult(promise);
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assert.fail("Should not be able to reach here 1.")
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}
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catch (err) {
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assert.equal(err.message, message);
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return;
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}
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assert.fail("Should not be able to reach here 2.")
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});
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it("handles pumping", () => {
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const actual = 4;
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const promise = new Promise<number>((resolve) => {
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setTimeout(resolve, 500 /*ms*/, actual);
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});
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const result = promiseResult(promise);
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assert.equal(result, actual);
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});
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it("lift properties", asyncTest(async () => {
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const actual = { a: "foo", b: 4, c: true, d: [function() {}] };
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const promise = new Promise<typeof actual>((resolve) => {
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resolve(actual);
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});
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const combinedResult = liftProperties(promise);
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// check that we've lifted the values properly.
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for (const key of Object.keys(actual)) {
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const value = (<any>actual)[key];
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assert.deepStrictEqual(value, (<any>combinedResult)[key]);
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}
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// also check that we have a proper promise to work with:
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const promiseValue = await combinedResult;
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for (const key of Object.keys(actual)) {
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const value = (<any>actual)[key];
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assert.deepStrictEqual(value, (<any>promiseValue)[key]);
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}
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// also ensure that .then works
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await combinedResult.then(v => {
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for (const key of Object.keys(actual)) {
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const value = (<any>actual)[key];
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assert.deepStrictEqual(value, (<any>v)[key]);
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}
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});
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}));
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it("lift properties throws", () => {
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const message = "etc";
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const promise = new Promise<number>((resolve, reject) => {
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reject(new Error(message));
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});
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try {
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const result = liftProperties(promise);
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assert.fail("Should not be able to reach here 1.")
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}
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catch (err) {
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assert.equal(err.message, message);
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return;
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}
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assert.fail("Should not be able to reach here 2.")
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});
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}); |