typed-test-id

This package links test ids used in frontend and selectors used in testing through types. Unlocks editor autocomplete and change detection. Powered by template literal types.

Usage

default data attribute is data-test-id

type TestId = "username-input" | "password-input";

const { testId, selector } = createTestIdPair<TestId>();

Both testId and selector will be fully typed to const type.

selector("username-input"); // => "[data-test-id=username-input]"
testId("password-input");   // => { "data-test-id": "password-input" }

if you want to use different data attribute, please provide it as a second type parameter in the generics.

type TestId = "product-name" | "product-price";

const { testId, selector } = createTestIdPair<TestId, "data-cy">("data-cy");

selector("product-name"); // => "[data-cy=product-name]"
testId("product-price");  // => { "data-cy": "product-price" }