92 lines
3.3 KiB
TypeScript
92 lines
3.3 KiB
TypeScript
import { tap, expect } from '@push.rocks/tapbundle';
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import * as lik from '../ts/index.js';
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let testAsyncExecutionStack: lik.AsyncExecutionStack;
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tap.test('should create a valid instance of AsyncExectionStack', async () => {
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testAsyncExecutionStack = new lik.AsyncExecutionStack();
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expect(testAsyncExecutionStack).toBeInstanceOf(lik.AsyncExecutionStack);
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});
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tap.test('should run in parallel', async (toolsArg) => {
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await testAsyncExecutionStack.getExclusiveExecutionSlot(async () => {
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await toolsArg.delayFor(2000);
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console.log('should run first');
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}, 2500);
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testAsyncExecutionStack.getNonExclusiveExecutionSlot(async () => {
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await toolsArg.delayFor(2000);
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console.log('should run third');
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}, 2500);
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testAsyncExecutionStack.getNonExclusiveExecutionSlot(async () => {
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await toolsArg.delayFor(1000);
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console.log('should run second');
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}, 2500);
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await testAsyncExecutionStack.getExclusiveExecutionSlot(async () => {
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console.log('should run fourth');
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}, 0);
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});
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// Test default non-exclusive has no concurrency limit property (Infinity)
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tap.test('default non-exclusive has no concurrency limit', () => {
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const stack = new lik.AsyncExecutionStack();
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// default maxConcurrency is Infinity (not finite)
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expect(Number.isFinite(stack.getNonExclusiveMaxConcurrency())).toBeFalse();
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});
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// Test respecting a non-exclusive concurrency limit
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tap.test('non-exclusive respects maxConcurrency', async (tools) => {
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const stack = new lik.AsyncExecutionStack();
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stack.setNonExclusiveMaxConcurrency(2);
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const activeCounts: number[] = [];
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const tasks: Promise<void>[] = [];
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for (let i = 0; i < 5; i++) {
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tasks.push(
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stack.getNonExclusiveExecutionSlot(async () => {
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activeCounts.push(stack.getActiveNonExclusiveCount());
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await tools.delayFor(50);
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})
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);
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}
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await Promise.all(tasks);
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// never more than 2 at once
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const maxActive = Math.max(...activeCounts);
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expect(maxActive).toBeLessThanOrEqual(2);
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});
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// Test concurrency stats (active vs pending) for non-exclusive tasks
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tap.test('non-exclusive concurrency stats reflect active and pending', async (tools) => {
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const stack = new lik.AsyncExecutionStack();
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stack.setNonExclusiveMaxConcurrency(2);
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// initially, no tasks
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expect(stack.getActiveNonExclusiveCount()).toEqual(0);
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expect(stack.getPendingNonExclusiveCount()).toEqual(0);
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// enqueue four tasks
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const p1 = stack.getNonExclusiveExecutionSlot(async () => {
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await tools.delayFor(30);
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});
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const p2 = stack.getNonExclusiveExecutionSlot(async () => {
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await tools.delayFor(30);
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});
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const p3 = stack.getNonExclusiveExecutionSlot(async () => {
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await tools.delayFor(30);
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});
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const p4 = stack.getNonExclusiveExecutionSlot(async () => {
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await tools.delayFor(30);
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});
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// wait for first task to finish and scheduling of next batch
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await p1;
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await tools.delayFor(0);
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// second batch: two active, one pending (4 tasks, limit=2)
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expect(stack.getActiveNonExclusiveCount()).toEqual(2);
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expect(stack.getPendingNonExclusiveCount()).toEqual(1);
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// wait for remaining tasks to complete
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await Promise.all([p2, p3, p4]);
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// after completion, counts reset
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expect(stack.getActiveNonExclusiveCount()).toEqual(0);
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expect(stack.getPendingNonExclusiveCount()).toEqual(0);
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});
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export default tap.start();
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