68 lines
2.3 KiB
TypeScript
68 lines
2.3 KiB
TypeScript
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import test from 'node:test';
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import assert from 'node:assert/strict';
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import type { SystemProcessInfo } from '../../domain/systemManager/types';
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import {
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PROCESS_LIST_CACHE_MAX_ROWS,
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PROCESS_LIST_CACHE_MAX_SESSIONS,
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clearCachedProcessList,
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getCachedProcessList,
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getProcessListCacheStatsForTests,
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resetProcessListCacheForTests,
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setCachedProcessList,
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} from './processListCache';
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const processRow = (pid: number): SystemProcessInfo => ({
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pid,
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ppid: 1,
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user: 'root',
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stat: 'S',
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command: `process-${pid}`,
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cpuPercent: 0,
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memPercent: 0,
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rssKb: 1,
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vszKb: 1,
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elapsed: '0:01',
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});
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test.beforeEach(resetProcessListCacheForTests);
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test.afterEach(resetProcessListCacheForTests);
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test('process list cache stays bounded across session churn and evicts least-recently-used entries', () => {
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const rows = [processRow(1), processRow(2)];
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const now = Date.now();
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for (let index = 0; index < PROCESS_LIST_CACHE_MAX_SESSIONS; index += 1) {
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setCachedProcessList(`session-${index}`, rows, now + index);
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}
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assert.ok(getCachedProcessList('session-0'));
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setCachedProcessList('session-overflow', rows, now + PROCESS_LIST_CACHE_MAX_SESSIONS + 1);
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const stats = getProcessListCacheStatsForTests();
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assert.equal(stats.sessions, PROCESS_LIST_CACHE_MAX_SESSIONS);
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assert.ok(stats.sessionIds.includes('session-0'));
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assert.ok(!stats.sessionIds.includes('session-1'));
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});
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test('process list cache enforces a total row budget and rejects one oversized response', () => {
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const halfBudget = Array.from(
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{ length: Math.floor(PROCESS_LIST_CACHE_MAX_ROWS / 2) + 1 },
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(_, index) => processRow(index),
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);
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setCachedProcessList('left', halfBudget, 1);
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setCachedProcessList('right', halfBudget, 2);
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assert.ok(getProcessListCacheStatsForTests().rows <= PROCESS_LIST_CACHE_MAX_ROWS);
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setCachedProcessList(
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'oversized',
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Array.from({ length: PROCESS_LIST_CACHE_MAX_ROWS + 1 }, (_, index) => processRow(index)),
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3,
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);
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assert.equal(getCachedProcessList('oversized'), null);
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});
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test('process list cache releases a closed or unmounted session immediately', () => {
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setCachedProcessList('closed-session', [processRow(1)]);
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clearCachedProcessList('closed-session');
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assert.equal(getCachedProcessList('closed-session'), null);
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assert.equal(getProcessListCacheStatsForTests().sessions, 0);
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});
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