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/*
This file is part of GNU Taler
(C) 2021 Taler Systems S.A.
GNU Taler is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 3, or (at your option) any later version.
GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
import { ComponentChildren, FunctionalComponent, h, VNode } from "preact";
import { MockEnvironment, Query } from "./mock.js";
import { SWRConfig } from "swr";
export { Query };
/**
* Helper for hook that use SWR inside.
*
* buildTestingContext() will return a testing context
*
*/
export class SwrMockEnvironment extends MockEnvironment {
constructor(debug = false) {
super(debug);
}
mockApiIfNeeded(): void {
null; // do nothing
}
public buildTestingContext(): FunctionalComponent<{
children: ComponentChildren;
}> {
const __REGISTER_REQUEST = this.registerRequest.bind(this);
return function TestingContext({
children,
}: {
children: ComponentChildren;
}): VNode {
return h(
SWRConfig,
{
value: {
fetcher: (url: string, options: object) => {
const mocked = __REGISTER_REQUEST(
{
method: "get",
url,
},
{},
);
if (!mocked) return undefined;
if (mocked.status > 400) {
const e: any = Error("simulated error for testing");
//example error handling from https://swr.vercel.app/docs/error-handling
e.status = mocked.status;
throw e;
}
return mocked.payload;
},
//These options are set for ending the test faster
//otherwise SWR will create timeouts that will live after the test finished
loadingTimeout: 0,
dedupingInterval: 0,
shouldRetryOnError: false,
errorRetryInterval: 0,
errorRetryCount: 0,
//clean cache for every test
provider: () => new Map(),
},
},
children,
);
};
}
}
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