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Retry outbound read syncs for up to 24 hours

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Evan Hahn 2021-07-23 17:02:36 -05:00 • committed by GitHub
parent fc33e9be41
commit 18140c4a9d
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GPG key ID: 4AEE18F83AFDEB23
9 changed files with 366 additions and 19 deletions
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96
ts/test-electron/util/waitForOnline_test.ts
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@ -7,6 +7,16 @@ import * as sinon from 'sinon';
import { waitForOnline } from '../../util/waitForOnline';
describe('waitForOnline', () => {
let sandbox: sinon.SinonSandbox;
beforeEach(() => {
sandbox = sinon.createSandbox();
});
afterEach(() => {
sandbox.restore();
});
function getFakeWindow(): EventTarget {
const result = new EventTarget();
sinon.stub(result, 'addEventListener');
@ -24,7 +34,7 @@ describe('waitForOnline', () => {
sinon.assert.notCalled(fakeWindow.removeEventListener as sinon.SinonStub);
});
it("if you're offline, resolves as soon as you're online", async () => {
it("if you're offline, resolves as soon as you're online (and cleans up listeners)", async () => {
const fakeNavigator = { onLine: false };
const fakeWindow = getFakeWindow();
@ -48,4 +58,88 @@ describe('waitForOnline', () => {
sinon.assert.calledOnce(fakeWindow.addEventListener as sinon.SinonStub);
sinon.assert.calledOnce(fakeWindow.removeEventListener as sinon.SinonStub);
});
it("resolves immediately if you're online when passed a timeout", async () => {
const fakeNavigator = { onLine: true };
const fakeWindow = getFakeWindow();
await waitForOnline(fakeNavigator, fakeWindow, { timeout: 1234 });
sinon.assert.notCalled(fakeWindow.addEventListener as sinon.SinonStub);
sinon.assert.notCalled(fakeWindow.removeEventListener as sinon.SinonStub);
});
it("resolves immediately if you're online even if passed a timeout of 0", async () => {
const fakeNavigator = { onLine: true };
const fakeWindow = getFakeWindow();
await waitForOnline(fakeNavigator, fakeWindow, { timeout: 0 });
sinon.assert.notCalled(fakeWindow.addEventListener as sinon.SinonStub);
sinon.assert.notCalled(fakeWindow.removeEventListener as sinon.SinonStub);
});
it("if you're offline, resolves as soon as you're online if it happens before the timeout", async () => {
const clock = sandbox.useFakeTimers();
const fakeNavigator = { onLine: false };
const fakeWindow = getFakeWindow();
(fakeWindow.addEventListener as sinon.SinonStub)
.withArgs('online')
.callsFake((_eventName: string, callback: () => void) => {
setTimeout(callback, 1000);
});
let done = false;
(async () => {
await waitForOnline(fakeNavigator, fakeWindow, { timeout: 9999 });
done = true;
})();
await clock.tickAsync(600);
assert.isFalse(done);
await clock.tickAsync(500);
assert.isTrue(done);
});
it('rejects if too much time has passed, and cleans up listeners', async () => {
const clock = sandbox.useFakeTimers();
const fakeNavigator = { onLine: false };
const fakeWindow = getFakeWindow();
(fakeWindow.addEventListener as sinon.SinonStub)
.withArgs('online')
.callsFake((_eventName: string, callback: () => void) => {
setTimeout(callback, 9999);
});
const promise = waitForOnline(fakeNavigator, fakeWindow, {
timeout: 100,
});
await clock.tickAsync(500);
await assert.isRejected(promise);
sinon.assert.calledOnce(fakeWindow.removeEventListener as sinon.SinonStub);
});
it('rejects if offline and passed a timeout of 0', async () => {
const fakeNavigator = { onLine: false };
const fakeWindow = getFakeWindow();
(fakeWindow.addEventListener as sinon.SinonStub)
.withArgs('online')
.callsFake((_eventName: string, callback: () => void) => {
setTimeout(callback, 9999);
});
const promise = waitForOnline(fakeNavigator, fakeWindow, { timeout: 0 });
await assert.isRejected(promise);
});
});