Ever gotten the following error when using window.location.assign
, reload
, or replace
?
Error: Not implemented: navigation (except hash changes)
This Jest plugin fixes this error and mocks out window.location
so it behaves similar to how does in the browser.
npm install --save-dev jest-location-mock
To start using Jest Location Mock, extend expect and add hooks by importing the default export in your jest setup file.
jest.config.js
module.exports = {
setupFilesAfterEnv: [
"./config/jest-setup.js"
]
};
config/jest-setup.js
// Mock `window.location` with Jest spies and extend expect
import "jest-location-mock";
expect(location).toBeAt(url, [base])
Throws: When the URLs have a different absolute href
.
Parameter | Type | Description |
---|---|---|
location | Location | URL |
Instance of URL to check its href |
url | string | URL |
Relative or absolute URL |
base | string | URL |
If the url parameter is relative, an base URL for the URL constructor |
it("should call assign with a relative url", () => {
window.location.assign("/relative-url");
expect(window.location).not.toBeAt("/");
expect(window.location).toBeAt("/relative-url");
});
Copyright Evelyn Hathaway, MIT License