SeongChan-An / TDD_Practice

TDD, Unit Test, Jest

TDD_Practice

Jest : https://jestjs.io/

Start

https://jestjs.io/docs/getting-started

npm install jest -g
jest --init
npm install --save-dev jest
npm install @types/jest

Exception

• https://jestjs.io/docs/using-matchers#exceptions

Testing Asynchronous Code

• https://jestjs.io/docs/asynchronous#callbacks

.resolves / .rejects

matcher in your expect statement,

test("the data is peanut butter", () => {
  return expect(fetchData()).resolves.toBe("peanut butter");
});