express-api-unit-test-starter
Sinon.JS
express-api-unit-test-starter | Sinon.JS | |
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1 | 28 | |
3 | 9,557 | |
- | 0.2% | |
0.0 | 8.2 | |
about 2 years ago | 7 days ago | |
JavaScript | JavaScript | |
- | GNU General Public License v3.0 or later |
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express-api-unit-test-starter
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Unit Testing Essentials for Express API: A Step-by-Step Guide
We'll be using a simple express API throughout this article to demonstrate unit testing. You can find the code on Github.
Sinon.JS
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Unit Testing in Node.js and TypeScript: A Comprehensive Guide with Jest Integration
If you are using a mocking library, such as sinon, jest-mock, or ts-mockito, make sure that it is compatible with Jest. You may need to install additional packages or configure them in your configuration file. For example, to use sinon with Jest, you can install the sinon-jest package and add the following to your configuration file:
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Express API Testing
Mocha is a test runner, Chai is an assertion library, Sinon is a mocking library, this normally the combination you would need to use if you choose mocha, but there are others.
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Alternative to AWS Mock
Instead, use pure functions + dependency inject your stubs (e.g. parameter to function). Also note, no need for Sinon or some other test double library. JavaScript is so good nowadays to easily make objects/classes/functions or any combination thereof on the fly that are terse.
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Unit testing: What to use, and how?
I've had some good experiences with Ava + Sinon. I've personally disliked Jest because it seemed to do some weird trickery in the background that prevented me from using ES modules.
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Can AI help me write tests on legacy code?
๐ค You can use the Mocha testing framework with the Chai assertion library to write tests for your Express controller. You can also use the Sinon library to mock the database calls. This will allow you to test the controller without actually making a call to the database. You can also use the SuperTest library to make HTTP requests to the controller and test the response.
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Need help writing a jest test that mocks an API call which will update state
You can use sinon js to create a mock version of your http library (axios) that responds with the data youโre expecting.
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Unit testing with React and Cypress
Assertions are the checkpoints of our test block that confirm if an automated test has passed or failed. Cypress bundles the Chai, jQuery, and Sinon.JS libraries for assertions. They check the desired, expected application in which the test is running. A complete listing of assertions can be found in the documentation here.
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When to use DI?
ES module is basically a "class" that you inject dependencies into through imports. And for tests you just use something like sinon to swap module dependencies for mocks.
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How to test a function that uses moment to format a date ? usimg karma
You can use a tool like sinon to pass in your own function instead of the real moment library. From there you can write tests that ensure moment was invoked appropriately.
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Typescript boilerplate test configuration with mocha, chai and sinon
Let's configure tests with mocha, chai and sinon on Typescript in a few steps.
What are some alternatives?
mocha - โ๏ธ simple, flexible, fun javascript test framework for node.js & the browser
jest - Delightful JavaScript Testing.
chai - BDD / TDD assertion framework for node.js and the browser that can be paired with any testing framework.
proxyquire - ๐ฎ Proxies nodejs require in order to allow overriding dependencies during testing.
Playwright - Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.
Enzyme - JavaScript Testing utilities for React
tap - Test Anything Protocol tools for node
javascript-todo-list-tutorial - โ A step-by-step complete beginner example/tutorial for building a Todo List App (TodoMVC) from scratch in JavaScript following Test Driven Development (TDD) best practice. ๐ฑ
ava - Node.js test runner that lets you develop with confidence ๐
jasmine - Simple JavaScript testing framework for browsers and node.js
WebdriverIO - Next-gen browser and mobile automation test framework for Node.js
tape - tap-producing test harness for node and browsers