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57 lines
2.2 KiB
TypeScript
57 lines
2.2 KiB
TypeScript
import { afterEach, describe, expect, it, vi } from 'vitest';
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import { UploadNodeHistory } from '../../src/highway/upload-nodes';
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const a = { host: '192.0.2.1', port: 14000 };
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const b = { host: '192.0.2.1', port: 80 };
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const c = { host: '192.0.2.2', port: 80 };
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afterEach(() => vi.useRealTimers());
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describe('upload node observations', () => {
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it('orders current candidates by confirmed success, unknown, then recent failure', () => {
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const history = new UploadNodeHistory();
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history.record(1004, a, false);
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history.record(1004, b, true);
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const original = [a, c, b, a];
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expect(history.order(1004, original)).toEqual([b, c, a]);
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expect(original).toEqual([a, c, b, a]);
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expect(history.order(1003, [a, c, b])).toEqual([a, c, b]);
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expect(history.order(1004, [c])).toEqual([c]);
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});
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it('expires failures and successes and still allows every failed candidate', () => {
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vi.useFakeTimers();
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const history = new UploadNodeHistory();
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history.record(1004, a, false);
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history.record(1004, b, false);
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expect(history.order(1004, [a, b])).toEqual([a, b]);
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expect(history.order(1004, [a, c])).toEqual([c, a]);
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vi.advanceTimersByTime(30_000);
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expect(history.order(1004, [a, c])).toEqual([a, c]);
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history.record(1004, b, true);
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expect(history.order(1004, [a, b])).toEqual([b, a]);
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vi.advanceTimersByTime(5 * 60_000);
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expect(history.order(1004, [a, b])).toEqual([a, b]);
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});
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it('lets a new failure replace success and a subsequent success recover', () => {
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const history = new UploadNodeHistory();
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history.record(1004, b, true);
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history.record(1004, b, false);
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expect(history.order(1004, [b, a])).toEqual([a, b]);
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history.record(1004, b, true);
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expect(history.order(1004, [a, b])).toEqual([b, a]);
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});
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it('evicts old observations when many distinct endpoints arrive', () => {
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const history = new UploadNodeHistory();
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history.record(1004, a, false);
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for (let port = 10000; port < 10200; port++) {
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history.record(1004, { host: '192.0.2.3', port }, false);
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}
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expect(history.order(1004, [a, c])).toEqual([a, c]);
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});
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});
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