import { describe, it, expect } from 'vitest';
import { getProcessTree } from '../process-tree.ts';
import { createCommandMatchingMockExecutor } from '../../test-utils/mock-executors.ts';
describe('getProcessTree', () => {
it('parses pid, ppid, name, and command', async () => {
const executor = createCommandMatchingMockExecutor({
'/bin/ps -o pid=,ppid=,comm=,args= -p 123': {
output: '123 1 Xcode /Applications/Xcode.app/Contents/MacOS/Xcode',
},
'/bin/ps -o pid=,ppid=,comm=,args= -p 1': {
output: '1 0 launchd /sbin/launchd',
},
});
const result = await getProcessTree(executor, '123');
expect(result.error).toBeUndefined();
expect(result.entries).toEqual([
{
pid: '123',
ppid: '1',
name: 'Xcode',
command: '/Applications/Xcode.app/Contents/MacOS/Xcode',
},
{
pid: '1',
ppid: '0',
name: 'launchd',
command: '/sbin/launchd',
},
]);
});
it('handles lines without command args', async () => {
const executor = createCommandMatchingMockExecutor({
'/bin/ps -o pid=,ppid=,comm=,args= -p 123': {
output: '123 1 Xcode',
},
'/bin/ps -o pid=,ppid=,comm=,args= -p 1': {
output: '1 0 launchd',
},
});
const result = await getProcessTree(executor, '123');
expect(result.error).toBeUndefined();
expect(result.entries).toEqual([
{
pid: '123',
ppid: '1',
name: 'Xcode',
command: '',
},
{
pid: '1',
ppid: '0',
name: 'launchd',
command: '',
},
]);
});
it('returns error when ps output is empty', async () => {
const executor = createCommandMatchingMockExecutor({
'/bin/ps -o pid=,ppid=,comm=,args= -p 123': {
output: '',
},
'ps -o pid=,ppid=,comm=,args= -p 123': {
output: '',
},
});
const result = await getProcessTree(executor, '123');
expect(result.entries).toEqual([]);
expect(result.error).toContain('ps returned no output for pid 123');
});
it('returns error when ps exits unsuccessfully', async () => {
const executor = createCommandMatchingMockExecutor({
'/bin/ps -o pid=,ppid=,comm=,args= -p 123': {
success: false,
error: 'ps failed',
},
'ps -o pid=,ppid=,comm=,args= -p 123': {
success: false,
error: 'ps failed',
},
});
const result = await getProcessTree(executor, '123');
expect(result.entries).toEqual([]);
expect(result.error).toContain('ps failed');
});
});
