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* @license
* Copyright 2019 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { expect } from 'chai';
import { SinonFakeTimers, SinonStub, stub, useFakeTimers } from 'sinon';
import * as generateAuthTokenModule from '../api/generate-auth-token';
import { AppConfig } from '../interfaces/app-config';
import {
CompletedAuthToken,
RegisteredInstallationEntry,
RequestStatus,
UnregisteredInstallationEntry
} from '../interfaces/installation-entry';
import { getFakeAppConfig } from '../testing/get-fake-app';
import '../testing/setup';
import { TOKEN_EXPIRATION_BUFFER } from '../util/constants';
import { sleep } from '../util/sleep';
import { get, set } from './idb-manager';
import { refreshAuthToken } from './refresh-auth-token';
const FID = 'carry-the-blessed-home';
const AUTH_TOKEN = 'authTokenFromServer';
const DB_AUTH_TOKEN = 'authTokenFromDB';
const ONE_WEEK_MS = 7 * 24 * 60 * 60 * 1000;
describe('refreshAuthToken', () => {
let appConfig: AppConfig;
let generateAuthTokenSpy: SinonStub<
[AppConfig, RegisteredInstallationEntry],
Promise<CompletedAuthToken>
>;
beforeEach(() => {
appConfig = getFakeAppConfig();
generateAuthTokenSpy = stub(
generateAuthTokenModule,
'generateAuthToken'
).callsFake(async () => {
await sleep(100); // Request would take some time
const result: CompletedAuthToken = {
token: AUTH_TOKEN,
expiresIn: ONE_WEEK_MS,
requestStatus: RequestStatus.COMPLETED,
creationTime: Date.now()
};
return result;
});
});
it('throws when there is no installation in the DB', async () => {
await expect(refreshAuthToken(appConfig)).to.be.rejected;
});
it('throws when there is an unregistered installation in the db', async () => {
const installationEntry: UnregisteredInstallationEntry = {
fid: FID,
registrationStatus: RequestStatus.NOT_STARTED
};
await set(appConfig, installationEntry);
await expect(refreshAuthToken(appConfig)).to.be.rejected;
});
describe('when there is a valid auth token in the DB', () => {
beforeEach(async () => {
const installationEntry: RegisteredInstallationEntry = {
fid: FID,
registrationStatus: RequestStatus.COMPLETED,
refreshToken: 'refreshToken',
authToken: {
token: AUTH_TOKEN,
expiresIn: ONE_WEEK_MS,
requestStatus: RequestStatus.COMPLETED,
creationTime: Date.now()
}
};
await set(appConfig, installationEntry);
});
it('returns the token from the DB', async () => {
const { token } = await refreshAuthToken(appConfig);
expect(token).to.equal(AUTH_TOKEN);
});
it('does not call any server APIs', async () => {
await refreshAuthToken(appConfig);
expect(generateAuthTokenSpy).not.to.be.called;
});
it('works even if the app is offline', async () => {
stub(navigator, 'onLine').value(false);
const { token } = await refreshAuthToken(appConfig);
expect(token).to.equal(AUTH_TOKEN);
});
});
describe('when there is an auth token that is about to expire in the DB', () => {
let clock: SinonFakeTimers;
beforeEach(async () => {
clock = useFakeTimers({ shouldAdvanceTime: true });
const installationEntry: RegisteredInstallationEntry = {
fid: FID,
registrationStatus: RequestStatus.COMPLETED,
refreshToken: 'refreshToken',
authToken: {
token: DB_AUTH_TOKEN,
expiresIn: ONE_WEEK_MS,
requestStatus: RequestStatus.COMPLETED,
creationTime:
// Expires in ten minutes
Date.now() - ONE_WEEK_MS + TOKEN_EXPIRATION_BUFFER + 10 * 60 * 1000
}
};
await set(appConfig, installationEntry);
});
it('returns a different token after expiration', async () => {
const token1 = await refreshAuthToken(appConfig);
expect(token1.token).to.equal(DB_AUTH_TOKEN);
// Wait 30 minutes.
clock.tick('30:00');
const token2 = await refreshAuthToken(appConfig);
await expect(token2.token).to.equal(AUTH_TOKEN);
await expect(token2.token).not.to.equal(DB_AUTH_TOKEN);
expect(generateAuthTokenSpy).to.be.calledOnce;
});
});
describe('when there is an expired auth token in the DB', () => {
beforeEach(async () => {
const installationEntry: RegisteredInstallationEntry = {
fid: FID,
registrationStatus: RequestStatus.COMPLETED,
refreshToken: 'refreshToken',
authToken: {
token: DB_AUTH_TOKEN,
expiresIn: ONE_WEEK_MS,
requestStatus: RequestStatus.COMPLETED,
creationTime: Date.now() - 2 * ONE_WEEK_MS
}
};
await set(appConfig, installationEntry);
});
it('does not call generateAuthToken twice on subsequent calls', async () => {
await refreshAuthToken(appConfig);
await refreshAuthToken(appConfig);
expect(generateAuthTokenSpy).to.be.calledOnce;
});
it('does not call generateAuthToken twice on simultaneous calls', async () => {
await Promise.all([
refreshAuthToken(appConfig),
refreshAuthToken(appConfig)
]);
expect(generateAuthTokenSpy).to.be.calledOnce;
});
it('returns a new token', async () => {
const { token } = await refreshAuthToken(appConfig);
await expect(token).to.equal(AUTH_TOKEN);
await expect(token).not.to.equal(DB_AUTH_TOKEN);
expect(generateAuthTokenSpy).to.be.calledOnce;
});
it('throws if the app is offline', async () => {
stub(navigator, 'onLine').value(false);
await expect(refreshAuthToken(appConfig)).to.be.rejected;
});
it('saves the new token in the DB', async () => {
const { token } = await refreshAuthToken(appConfig);
const installationEntry = (await get(
appConfig
)) as RegisteredInstallationEntry;
expect(installationEntry).not.to.be.undefined;
expect(installationEntry.registrationStatus).to.equal(
RequestStatus.COMPLETED
);
const authToken = installationEntry.authToken as CompletedAuthToken;
expect(authToken.requestStatus).to.equal(RequestStatus.COMPLETED);
expect(authToken.token).to.equal(token);
});
});
});
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