queryAllByTestId

QueryAllByTestId is a method in the React Testing Library, a set of tools for testing React applications. It is used to retrieve all elements with a specific test id attribute from a React component tree.

When called, QueryAllByTestId will return an array of all elements that have a test id attribute matching the one provided to the function. This allows testers to target specific elements within a component for testing purposes.

QueryAllByTestId is often used in conjunction with other functions from the React Testing Library, such as act and waitFor, to ensure that elements are in a consistent state before attempting to query them.

The method takes two parameters: the string containing the test id to match, and the optional options object that can be passed to further customize the query. The options object allows testers to specify additional criteria, such as the exact text of the element, or the expected class names.

QueryAllByTestId supports both stable and unstable versions. The stable version only returns elements that are visible and have a valid test id, while the unstable version returns all elements that match the test id, regardless of their visibility or state.

In practice, QueryAllByTestId can be used to test the behavior of individual elements within a complex React component, ensuring that the application's UI is working as expected. By leveraging the capabilities of the React Testing Library, developers can write more efficient and effective tests that target specific elements with precision.

QueryAllByTestId is part of the reactor testing library, and is being used to test react applications efficiently.