/**
* Copyright 2024 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { describe, expect, it } from '@jest/globals';
import { ProcessManager } from '../src/manager/process-manager';
describe('ProcessManager', () => {
it('should start and stop a process successfully', async () => {
const manager = new ProcessManager('node', [
'-e',
'console.log("test"); process.exit(0);',
]);
expect(manager.status()).toEqual({ status: 'stopped' });
await manager.start({ nonInteractive: true });
expect(manager.status()).toEqual({ status: 'stopped' });
});
it('should reject on non-zero exit code', async () => {
const manager = new ProcessManager('node', ['-e', 'process.exit(1);']);
await expect(manager.start({ nonInteractive: true })).rejects.toThrow(
'app process exited with code 1'
);
expect(manager.status()).toEqual({ status: 'stopped' });
});
it('should be able to kill a process', async () => {
// A process that runs for a long time
const manager = new ProcessManager('node', [
'-e',
'setTimeout(() => {}, 10000)',
]);
expect(manager.status()).toEqual({ status: 'stopped' });
const startPromise = manager.start({ nonInteractive: true });
// Give it a moment to start
await new Promise((resolve) => setTimeout(resolve, 100));
expect(manager.status()).toEqual({ status: 'running' });
await manager.kill();
expect(manager.status()).toEqual({ status: 'stopped' });
// The start promise should resolve when the process is killed.
await startPromise;
});
it('should be able to restart a process', async () => {
const manager = new ProcessManager('node', [
'-e',
'console.log("test"); process.exit(0);',
]);
expect(manager.status()).toEqual({ status: 'stopped' });
// Start, let it finish
await manager.start({ nonInteractive: true });
expect(manager.status()).toEqual({ status: 'stopped' });
// Restart
await manager.restart({ nonInteractive: true });
expect(manager.status()).toEqual({ status: 'running' });
});
it('kill should be idempotent', async () => {
const manager = new ProcessManager('node', ['-e', '']);
await manager.kill();
await manager.kill();
expect(manager.status()).toEqual({ status: 'stopped' });
});
});