Before I was getting Property eventually does not exist on type Assertion. But instead I am getting TypeError.
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How to use.
. Cannot find module chai-as-promised. Heres how you can use chai-as-promised to test both resolve and reject cases for. Expected promise to be fulfilled but it was rejected with Error.
Some of the issues were resolved by properly returning the promise in the test so mocha can properly handle the asynchronous test. Chai as Promised does not support Babel modules although it will support ES6 modules once they become a standard. SinonChai provides a set of custom assertions for using the SinonJS spy stub and mocking framework with the Chai assertion library.
Dotnet add package chai-as-promisedTypeScriptDefinitelyTyped --version 281 For projects that support PackageReference copy this XML. This is a playground to test code. But while using Chai you have to take care of promises.
All of your favorite SinonJS assertions made their way into SinonChai. Posts with mentions or reviews of chai-as-promised. Add SinonJS and sinon-as-promised into the mix and you can stub them.
Multiple expect statements in a single test. For this example I am using Mocha plus Chai for its BDD expect syntax and the chai-as-promised plugin for asynchronous matchers. However the original problem demonstrated by the OP here isnt resolved and I dont think it can be resolved by chai or chai-as.
After adding this everyone was happy -. How to validate thrown javascript exception using chai and mocha. Chai mocha succeed in test if resolved fail if rejected.
The last one was on 2021-03-30. Auto_flow_d5xybt is not a thenable. Fast reliable and secure dependency management.
If you want to make it work with Babel modules in the meantime youll need to ask the Babel folks for help since it isnt a supported scenario here. When testing for promise rejections getting is not a thenable when using Mocha with chai-as-promised. Start using chai-as-promised in your project by running npm i chai-as-promised.
As chai-as-promised provides extensions to chai types and chai has already moved to an external module for Typings it is necessary to port chai-as-promiseddts Project structure To test the type definitions as it will be imported by typings the test project is fully defined inside the test subfolder. Chai-as-promised reviews and mentions. Best JavaScript code snippets using chai-as-promised Showing top 15 results out of 405 origin.
There are 160 other projects in the npm registry using typeschai-as-promised. Chai and Chai-as-Promised are downloaded under Preferences-Language Frameworks-Javascripts-Libraries. I have created a Node JS Project in IntelliJ and downloaded Chai and Chai-as-Promised.
Add the types for chai-as-promised and that should take care of the TypeScript errors. As already pointed out here the newer versions of Mocha are already Promise-aware. Npm install --save-dev typeschai-as-promised.
Based on project statistics from the GitHub repository for the npm package chai-as-promised we found that it has been starred 1385 times and that 14929 other projects in the ecosystem are dependent on it. Domenic commented on Dec 10 2015. Mochas built-in promise support combined with Chai and chai-as-promised makes it simple to test promise-returning code.
It runs a full Nodejs environment and already has all of npms 1000000 packages pre-installed including chai-as-promised with. Learn how to use chai-as-promised by viewing and forking chai-as-promised example apps on CodeSandbox. The above code should pass as both the expected value and actual as same.
But since the OP asked specifically about Chai its only fair to point out the chai-as-promised package which provides a clean syntax for testing promises. Use require instead of import. I think this answer is what you need.
We have used some of these posts to build our list of alternatives and similar projects. Extends Chai with assertions about promises. Start using typeschai-as-promised in your project by running npm i typeschai-as-promised.
There are 951 other projects in the npm registry using chai-as-promised. I added below code snippet to the script which I need to execute. Chai-as-promised-gotcha resolves even though it is rejected 1 works if you use fulfilled instead of resolved 1 passing 27ms 1 failing 1 chai-as-promised-gotcha works if you use fulfilled instead of resolved.
You get all the benefits of Chai with all the powerful tools of SinonJS. Chai - Test Assertion Library which allows you to test your code with keywords such as expect should etc. Some of the issues were resolved with the release of chai4 and chai-as-promised7.
Downloads are calculated as moving averages for a period of the last 12 months excluding weekends and known missing data points. TypeScript definitions for chai-as-promised.
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