concurrently
Version:
Run commands concurrently
64 lines (63 loc) • 2.86 kB
JavaScript
import { EventEmitter } from 'node:events';
import { beforeEach, describe, expect, it, vi } from 'vitest';
import { createFakeCloseEvent, FakeCommand } from '../__fixtures__/fake-command.js';
import { KillOnSignal } from './kill-on-signal.js';
let commands;
let controller;
let process;
let abortController;
beforeEach(() => {
process = new EventEmitter();
commands = [new FakeCommand(), new FakeCommand()];
abortController = new AbortController();
controller = new KillOnSignal({ process, abortController });
});
it('returns commands that keep non-close streams from original commands', () => {
const { commands: newCommands } = controller.handle(commands);
newCommands.forEach((newCommand, i) => {
expect(newCommand.close).not.toBe(commands[i].close);
expect(newCommand.error).toBe(commands[i].error);
expect(newCommand.stdout).toBe(commands[i].stdout);
expect(newCommand.stderr).toBe(commands[i].stderr);
});
});
it('returns commands that map SIGINT to exit code 0', () => {
const { commands: newCommands } = controller.handle(commands);
expect(newCommands).not.toBe(commands);
expect(newCommands).toHaveLength(commands.length);
const callback = vi.fn();
newCommands[0].close.subscribe(callback);
process.emit('SIGINT', 'SIGINT');
// A fake command's .kill() call won't trigger a close event automatically...
commands[0].close.next(createFakeCloseEvent({ exitCode: 1 }));
expect(callback).not.toHaveBeenCalledWith(expect.objectContaining({ exitCode: 'SIGINT' }));
expect(callback).toHaveBeenCalledWith(expect.objectContaining({ exitCode: 0 }));
});
it('returns commands that keep non-SIGINT exit codes', () => {
const { commands: newCommands } = controller.handle(commands);
expect(newCommands).not.toBe(commands);
expect(newCommands).toHaveLength(commands.length);
const callback = vi.fn();
newCommands[0].close.subscribe(callback);
commands[0].close.next(createFakeCloseEvent({ exitCode: 1 }));
expect(callback).toHaveBeenCalledWith(expect.objectContaining({ exitCode: 1 }));
});
describe.each(['SIGINT', 'SIGTERM', 'SIGHUP'])('on %s', (signal) => {
it('kills all commands', () => {
controller.handle(commands);
process.emit(signal, signal);
expect(process.listenerCount(signal)).toBe(1);
expect(commands[0].kill).toHaveBeenCalledWith(signal);
expect(commands[1].kill).toHaveBeenCalledWith(signal);
});
it('sends abort signal', () => {
controller.handle(commands);
process.emit(signal, signal);
expect(abortController.signal.aborted).toBe(true);
});
it('removes event listener on finish', () => {
const { onFinish } = controller.handle(commands);
onFinish();
expect(process.listenerCount(signal)).toBe(0);
});
});