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466 lines
11 KiB
TypeScript
466 lines
11 KiB
TypeScript
import type { RedundancyConfig } from '../src/config';
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import { sendQuery } from '../src/query';
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describe('Multiple resources', () => {
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it('Simple query, success on first attempt', (done) => {
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const payload = {};
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const resources = ['api1', 'api2'];
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const result = {};
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const config: RedundancyConfig = {
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resources,
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index: 0,
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timeout: 200,
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rotate: 100,
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random: false,
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dataAfterTimeout: false,
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};
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// Tracking
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let isSync = true;
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const startTime = Date.now();
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let sentQuery = 0;
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// Send query
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const getStatus = sendQuery(
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config,
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payload,
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(resource, queryPayload, queryItem) => {
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expect(isSync).toEqual(false);
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expect(resource).toEqual('api1');
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expect(queryPayload).toEqual(payload);
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// Query should be executed only once because it should finish before second attempt
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expect(sentQuery).toEqual(0);
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sentQuery++;
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// Check status
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expect(queryItem.getQueryStatus).toEqual(getStatus);
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const status = getStatus();
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expect(status.status).toEqual('pending');
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expect(status.payload).toEqual(payload);
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expect(status.queriesSent).toEqual(1);
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expect(status.queriesPending).toEqual(1);
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// Add abort function
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queryItem.abort = (): void => {
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done('Abort should have not been called');
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};
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// Complete
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queryItem.done(result);
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},
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(data, error) => {
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// Make sure query was sent
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expect(sentQuery).toEqual(1);
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// Validate data
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expect(data).toEqual(result);
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expect(error).toBeUndefined();
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// Check status
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const status = getStatus();
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expect(status.status).toEqual('completed');
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expect(status.queriesSent).toEqual(1);
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expect(status.queriesPending).toEqual(0);
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// Should be almost instant
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const diff = Date.now() - startTime;
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expect(diff).toBeLessThan(50);
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done();
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},
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() => {
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done('This should not have been called');
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}
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);
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// Check status
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const status = getStatus();
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expect(status.status).toEqual('pending');
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expect(status.queriesSent).toEqual(0);
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expect(status.queriesPending).toEqual(0);
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isSync = false;
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});
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it('Simple query, time out on first, success on second (~100ms)', (done) => {
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const payload = {};
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const resources = ['api1', 'api2'];
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const result = {};
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const config: RedundancyConfig = {
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resources,
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index: 0,
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timeout: 200,
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rotate: 100,
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random: false,
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dataAfterTimeout: false,
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};
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// Tracking
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let isSync = true;
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const startTime = Date.now();
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let sentQuery = 0;
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let itemAborted = false;
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let parentUpdated = false;
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// Send query
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const getStatus = sendQuery(
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config,
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payload,
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(resource, queryPayload, queryItem) => {
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expect(isSync).toEqual(false);
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expect(queryPayload).toEqual(payload);
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// Query should be executed twice
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expect(sentQuery).toBeLessThan(2);
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expect(resource).toEqual(resources[sentQuery]);
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// Check status
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expect(queryItem.getQueryStatus).toEqual(getStatus);
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const status = getStatus();
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expect(status.status).toEqual('pending');
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expect(status.payload).toEqual(payload);
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// Bump counter
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sentQuery++;
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// All queries should be pending
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expect(status.queriesSent).toEqual(sentQuery);
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expect(status.queriesPending).toEqual(sentQuery);
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// Add abort function
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// Time out first, complete second
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switch (sentQuery) {
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case 1:
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queryItem.abort = (): void => {
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// First item should be aborted, but only once
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expect(itemAborted).toEqual(false);
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// When this is executed, counter should have been increased
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expect(sentQuery).toEqual(2);
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itemAborted = true;
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// Do nothing, let it time out
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};
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return;
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case 2:
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queryItem.abort = (): void => {
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done('Abort should have not been called');
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};
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// Send result
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queryItem.done(result);
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return;
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default:
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done('This code should not have been reached');
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}
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},
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(data, error) => {
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// Make sure queries were sent
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expect(sentQuery).toEqual(2);
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// First query should have been aborted
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expect(itemAborted).toEqual(true);
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// Validate data
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expect(data).toEqual(result);
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expect(error).toBeUndefined();
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// Check status
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const status = getStatus();
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expect(status.status).toEqual('completed');
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expect(status.queriesSent).toEqual(2);
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expect(status.queriesPending).toEqual(0);
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// Parent should have been updated
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expect(parentUpdated).toEqual(true);
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// Delay between first and second queries
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const diff = Date.now() - startTime;
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expect(diff).toBeGreaterThan(50);
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expect(diff).toBeLessThan(150);
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done();
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},
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(newIndex) => {
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// Start index should be updated to 1
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expect(newIndex).toEqual(1);
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parentUpdated = true;
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}
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);
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// Check status
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const status = getStatus();
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expect(status.status).toEqual('pending');
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expect(status.queriesSent).toEqual(0);
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expect(status.queriesPending).toEqual(0);
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isSync = false;
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});
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it('Time out all queries (~100ms)', (done) => {
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const payload = {};
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const resources = ['api1', 'api2'];
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const config: RedundancyConfig = {
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resources,
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index: 0,
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timeout: 50,
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rotate: 25,
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random: false,
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dataAfterTimeout: false,
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};
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// Tracking
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let isSync = true;
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const startTime = Date.now();
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let sentQuery = 0;
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let item1Aborted = false;
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let item2Aborted = false;
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// Send query
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const getStatus = sendQuery(
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config,
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payload,
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(resource, queryPayload, queryItem) => {
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expect(isSync).toEqual(false);
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expect(queryPayload).toEqual(payload);
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// Query should be executed twice
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expect(sentQuery).toBeLessThan(2);
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expect(resource).toEqual(resources[sentQuery]);
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// Check status
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expect(queryItem.getQueryStatus).toEqual(getStatus);
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const status = getStatus();
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expect(status.status).toEqual('pending');
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expect(status.payload).toEqual(payload);
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// Bump counter
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sentQuery++;
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// All queries should be pending
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expect(status.queriesSent).toEqual(sentQuery);
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expect(status.queriesPending).toEqual(sentQuery);
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// Add abort functions
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switch (sentQuery) {
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case 1:
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queryItem.abort = (): void => {
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expect(item1Aborted).toEqual(false);
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expect(item2Aborted).toEqual(false);
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// This should have been executed at the end
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expect(sentQuery).toEqual(2);
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item1Aborted = true;
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// Do not send anything
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};
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return;
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case 2:
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queryItem.abort = (): void => {
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expect(item1Aborted).toEqual(true);
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expect(item2Aborted).toEqual(false);
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// This should have been executed at the end
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expect(sentQuery).toEqual(2);
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item2Aborted = true;
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// Do not send anything
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};
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return;
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default:
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done('This code should not have been reached');
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}
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},
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(data, error) => {
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// Make sure queries were sent
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expect(sentQuery).toEqual(2);
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// Queries should have been aborted
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expect(item1Aborted).toEqual(true);
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expect(item2Aborted).toEqual(true);
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// Validate data
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expect(data).toBeUndefined();
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expect(error).toBeUndefined();
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// Check status
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const status = getStatus();
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expect(status.status).toEqual('failed');
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expect(status.queriesSent).toEqual(2);
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expect(status.queriesPending).toEqual(0);
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// rotate * 2 + timeout
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const diff = Date.now() - startTime;
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expect(diff).toBeGreaterThan(90);
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expect(diff).toBeLessThan(120);
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done();
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},
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() => {
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done('This should have never been called');
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}
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);
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// Check status
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const status = getStatus();
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expect(status.status).toEqual('pending');
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expect(status.queriesSent).toEqual(0);
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expect(status.queriesPending).toEqual(0);
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isSync = false;
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});
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it('Start with second resource (~100ms)', (done) => {
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const payload = {};
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const resources = ['api1', 'api2'];
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const config: RedundancyConfig = {
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resources,
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index: 1,
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timeout: 50,
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rotate: 25,
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random: false,
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dataAfterTimeout: false,
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};
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// Tracking
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let isSync = true;
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const startTime = Date.now();
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let sentQuery = 0;
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let item1Aborted = false;
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let item2Aborted = false;
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// Send query
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const getStatus = sendQuery(
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config,
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payload,
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(resource, queryPayload, queryItem) => {
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expect(isSync).toEqual(false);
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expect(queryPayload).toEqual(payload);
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// Resource order should be: 1, 0
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expect(resource).not.toEqual(resources[sentQuery]);
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expect(resource).toEqual(resources[1 - sentQuery]);
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// Bump counter
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sentQuery++;
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// Add abort functions
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switch (sentQuery) {
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case 1:
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queryItem.abort = (): void => {
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item1Aborted = true;
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};
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return;
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case 2:
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queryItem.abort = (): void => {
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item2Aborted = true;
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};
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return;
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default:
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done('This code should not have been reached');
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}
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},
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(data, error) => {
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// Make sure queries were sent
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expect(sentQuery).toEqual(2);
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// Queries should have been aborted
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expect(item1Aborted).toEqual(true);
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expect(item2Aborted).toEqual(true);
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// Validate data
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expect(data).toBeUndefined();
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expect(error).toBeUndefined();
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// rotate * 2 + timeout
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const diff = Date.now() - startTime;
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expect(diff).toBeGreaterThan(90);
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expect(diff).toBeLessThan(120);
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done();
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},
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() => {
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done('This should have never been called');
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}
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);
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// Check status
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const status = getStatus();
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expect(status.status).toEqual('pending');
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expect(status.queriesSent).toEqual(0);
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expect(status.queriesPending).toEqual(0);
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isSync = false;
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});
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it('Start with last resource (~150ms)', (done) => {
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const payload = {};
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const resources = ['api1', 'api2', 'api3', 'api4'];
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const config: RedundancyConfig = {
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resources,
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index: 3,
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timeout: 50,
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rotate: 25,
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random: false,
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dataAfterTimeout: false,
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};
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// Tracking
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let isSync = true;
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let sentQuery = 0;
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const startTime = Date.now();
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// Send query
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const getStatus = sendQuery(
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config,
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payload,
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(resource, queryPayload) => {
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expect(isSync).toEqual(false);
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expect(queryPayload).toEqual(payload);
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// Resource order should be: 3, 0, 1, 2
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expect(resource).not.toEqual(resources[sentQuery]);
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const expectedIndex = sentQuery === 0 ? 3 : sentQuery - 1;
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expect(resource).toEqual(resources[expectedIndex]);
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// Bump counter
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sentQuery++;
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},
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(data, error) => {
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// Make sure queries were sent
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expect(sentQuery).toEqual(4);
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// Validate data
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expect(data).toBeUndefined();
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expect(error).toBeUndefined();
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// rotate * 4 + timeout
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const diff = Date.now() - startTime;
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expect(diff).toBeGreaterThan(140);
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expect(diff).toBeLessThan(170);
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done();
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},
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() => {
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done('This should have never been called');
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}
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);
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// Check status
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const status = getStatus();
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expect(status.status).toEqual('pending');
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expect(status.queriesSent).toEqual(0);
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expect(status.queriesPending).toEqual(0);
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isSync = false;
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});
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});
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