mirror of https://github.com/vector-im/riot-web
59 lines
2.1 KiB
TypeScript
59 lines
2.1 KiB
TypeScript
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/*
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Copyright 2023 The Matrix.org Foundation C.I.C.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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/// <reference types="cypress" />
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import Chainable = Cypress.Chainable;
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declare global {
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// eslint-disable-next-line @typescript-eslint/no-namespace
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namespace Cypress {
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interface Chainable {
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/**
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* Utility wrapper around promises to help control flow in tests
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* Calls `fn` function `tries` times, with a sleep of `interval` between calls.
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* Ensure you do not rely on any effects of calling any `cy.*` functions within the body of `fn`
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* as the calls will not happen until after waitForPromise returns.
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* @param fn the function to retry
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* @param tries the number of tries to call it
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* @param interval the time interval between tries
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*/
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waitForPromise(fn: () => Promise<unknown>, tries?: number, interval?: number): Chainable<unknown>;
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}
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}
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}
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function waitForPromise(fn: () => Promise<unknown>, tries = 10, interval = 1000): Chainable<unknown> {
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return cy.then(
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() =>
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new Cypress.Promise(async (resolve, reject) => {
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for (let i = 0; i < tries; i++) {
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try {
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const v = await fn();
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resolve(v);
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} catch {
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await new Cypress.Promise((resolve) => setTimeout(resolve, interval));
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}
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}
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reject();
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}),
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);
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}
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Cypress.Commands.add("waitForPromise", waitForPromise);
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export {};
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