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52 lines
1.4 KiB
52 lines
1.4 KiB
1 month ago
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const tap = require('tap');
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const test = tap.test;
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const readFile = require('fs').readFileSync;
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const spawn = require('child_process').spawn;
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const pstree = require('../');
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const { tree, pidsForTree, getStat } = require('../lib/utils');
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if (process.platform !== 'darwin') {
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test('reads from /proc', async (t) => {
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const ps = await getStat();
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t.ok(ps.split('\n').length > 1);
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});
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}
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test('tree for live env', async (t) => {
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const pid = 4079;
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const fixture = readFile(__dirname + '/fixtures/out2', 'utf8');
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const ps = await tree(fixture);
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t.deepEqual(
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pidsForTree(ps, pid).map((_) => _.PID),
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['4080']
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);
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});
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function testTree(t, runCallCount) {
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const sub = spawn('node', [`${__dirname}/fixtures/index.js`, runCallCount], {
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stdio: 'pipe',
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});
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setTimeout(() => {
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const pid = sub.pid;
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pstree(pid, (error, pids) => {
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pids.concat([pid]).forEach((p) => {
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spawn('kill', ['-s', 'SIGTERM', p]);
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});
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// the fixture launches `sh` which launches node which is why we
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// are looking for two processes.
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// Important: IDKW but MacOS seems to skip the `sh` process. no idea.
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t.equal(pids.length, runCallCount * 2);
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t.end();
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});
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}, 1000);
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}
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test('can read full process tree', (t) => {
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testTree(t, 1);
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});
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test('can read full process tree with multiple processes', (t) => {
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testTree(t, 2);
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});
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