testdouble.js (AKA td.js)
config
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| testdouble.js (AKA td.js) | config | |
|---|---|---|
| 4 | 1 | |
| 1,407 | 4 | |
| 0.3% | - | |
| 6.5 | 8.4 | |
| about 1 month ago | 9 days ago | |
| JavaScript | TypeScript | |
| MIT License | MIT License |
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testdouble.js (AKA td.js)
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Cannot figure out how to mock ES6 modules for a Node AWS Lambda
ESM modules need custom loaders for mocking. Testsouble (https://www.npmjs.com/package/testdouble) was one of the first frameworks to support it AFAIK and a great type-safe option.
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TypeScript testing
Alternative is using testdouble with `td.object()` https://www.npmjs.com/package/testdouble
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Testing Without Mocks
I’m not sure I manage to follow the author correctly, but to me it seems that by “mock” they strictly refer to external mocking libraries, in the sense of JS’s `testdouble` [1] or Java’s `Mockito` [2]. The fake object as returned by `LoginClient.createNull().getUserInfo(...)` appears to be a “Nullable” for them.
[1] https://www.npmjs.com/package/testdouble
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What you need to know about ES modules in Node.js
If you need an alternative for mocking, testdouble.js has full ES module support thanks to some excellent work by Gil Tayar.
config
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TypeScript testing
One of my examples: https://github.com/pallad-ts/config/blob/master/packages/ssm/test/SSMProviderTest.ts
What are some alternatives?
jest - Delightful JavaScript Testing.
envars - Securely load environment variables (configuration settings) from .env files with support of Google Secret Manager.
tape - tap-producing test harness for node and browsers
config - Configuration module for Nest framework (node.js) 🍓
loadtest - Runs a load test on the selected URL. Fast and easy to use. Can be integrated in your own workflow using the API.
c9h - 🐍 Zero-config config for Node.js
Sinon.JS - Test spies, stubs and mocks for JavaScript.
chimera - A fantastic configuration library for Deno
Cucumber.js - Cucumber for JavaScript
nyc - the Istanbul command line interface
mocha - ☕️ simple, flexible, fun javascript test framework for node.js & the browser
abstruse - Abstruse is a free and open-source CI/CD platform that tests your models and code.