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Svelte 5 / Production

Testing

Learn Testing in Svelte 5 with a dedicated explanation, a concept-specific example, a production caution, and a mastery check.

12 min read • Advanced
svelte-5-046.svelte
svelte 
import { render,fireEvent } from "@testing-library/svelte"; import Counter from "./Counter.svelte";
test("increments",async()=>{const {getByRole}=render(Counter);await fireEvent.click(getByRole("button"));expect(getByRole("button").textContent).toBe("1")});
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