a284ee852e
Add SSE `retry:` directive to suggest a 2-minute reconnect delay when the worker enters idle sleep and drops silent EventSource streams. This prevents clients from immediately reconnecting and re-waking the container, reducing unnecessary resource usage. Update SSE encoding to support the `retry` field and add tests for correct behavior. Improve idle disconnect logging for better observability.
36 lines
1.2 KiB
TypeScript
36 lines
1.2 KiB
TypeScript
import { describe, expect, test } from 'vitest';
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import { encodeSseFrame, parseSseEventId, parseSsePayload } from '../../src/control-plane/sse';
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describe('sse codec', () => {
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test('encodes event id and payload and decodes both reliably', () => {
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const frame = encodeSseFrame({
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id: 42,
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event: 'snapshot',
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data: { ok: true, opId: 'op-1' },
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});
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expect(frame).toContain('event: snapshot');
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expect(parseSseEventId(frame)).toBe(42);
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expect(parseSsePayload(frame)).toBe('{"ok":true,"opId":"op-1"}');
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});
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test('supports multiline data payload', () => {
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const frame = encodeSseFrame({
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id: 5,
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data: 'line1\nline2',
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});
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expect(parseSseEventId(frame)).toBe(5);
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expect(parseSsePayload(frame)).toBe('line1\nline2');
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});
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test('emits a retry directive when provided', () => {
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const frame = encodeSseFrame({ retry: 120_000 });
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expect(frame).toContain('retry: 120000');
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});
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test('omits retry when not finite and floors fractional values', () => {
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expect(encodeSseFrame({ retry: Number.NaN })).not.toContain('retry:');
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expect(encodeSseFrame({ retry: 1500.9 })).toContain('retry: 1500');
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});
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});
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