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Testing the CreatePost component

Explore how to write effective tests for the CreatePost React component using asynchronous user events with Jest and React Testing Library. Understand the component's logic, simulate typing and clicking actions, verify UI changes like button states, and ensure your tests cover real user behavior to improve component reliability.

In the src/components/posts/__tests__ directory, create a new file called CreatePost.test.js. We’ll start with the necessary imports and the definition of the test function:

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import { render, screen, fireEvent } from "../../../helpers/test-utils";
import userEvent from "@testing-library/user-event";
import CreatePost from "../CreatePost";
import { faker } from "@faker-js/faker";
test("Renders CreatePost component", async () => {
...
});

We can notice the introduction of the async keyword before the callback function. To create a post, the user performs typing operations on text inputs and finally clicks a button to submit the post. These actions are asynchronous. The functions, ...