id | title |
---|---|
ecosystem-jasmine-dom |
jasmine-dom |
jasmine-dom
is a companion library for Testing Library that provides
custom DOM element matchers for Jasmine
npm install --save-dev @testing-library/jasmine-dom
Then follow usage section from jasmine-dom's documentation to add the matchers to Jasmine.
<span data-testid="not-empty"><span data-testid="empty"></span></span>
<div data-testid="visible">Visible Example</div>
expect(screen.queryByTestId('not-empty')).not.toBeEmptyDOMElement()
expect(screen.getByText('Visible Example')).toBeVisible()
:::caution When using some of these matchers, you may need to make sure you use
a query function (like queryByTestId
) rather than a get function (like
getByTestId
). Otherwise the get*
function could throw an error before your
assertion. :::
Check out jasmine-dom's documentation for a full list of available matchers.