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test: improve statwatcher async_hooks test

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Modify the `fs.watchFile()` async hooks test to be more
accurate; currently, it relies on undocumented methods
and the fact that they use `MakeCallback()` even though
there is always a JS stack below.

PR-URL: https://github.com/nodejs/node/pull/21244
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
This commit is contained in:
Anna Henningsen 2018-06-10 15:36:55 +02:00
parent 2a08925896
commit 65b2e4b6fa
No known key found for this signature in database
GPG Key ID: 9C63F3A6CD2AD8F9
1 changed files with 33 additions and 15 deletions
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48
test/async-hooks/test-statwatcher.js
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@ -1,21 +1,29 @@
'use strict';
const common = require('../common');
const commonPath = require.resolve('../common');
const tmpdir = require('../common/tmpdir');
const assert = require('assert');
const initHooks = require('./init-hooks');
const { checkInvocations } = require('./hook-checks');
const fs = require('fs');
const path = require('path');
if (!common.isMainThread)
common.skip('Worker bootstrapping works differently -> different async IDs');
tmpdir.refresh();
const file1 = path.join(tmpdir.path, 'file1');
const file2 = path.join(tmpdir.path, 'file2');
fs.writeFileSync(file1, 'foo');
fs.writeFileSync(file2, 'bar');
const hooks = initHooks();
hooks.enable();
function onchange() {}
// install first file watcher
fs.watchFile(__filename, onchange);
const w1 = fs.watchFile(file1, { interval: 10 }, onchange);
let as = hooks.activitiesOfTypes('STATWATCHER');
assert.strictEqual(as.length, 1);
@ -28,7 +36,7 @@ checkInvocations(statwatcher1, { init: 1 },
'watcher1: when started to watch file');
// install second file watcher
fs.watchFile(commonPath, onchange);
const w2 = fs.watchFile(file2, { interval: 10 }, onchange);
as = hooks.activitiesOfTypes('STATWATCHER');
assert.strictEqual(as.length, 2);
@ -41,19 +49,29 @@ checkInvocations(statwatcher1, { init: 1 },
checkInvocations(statwatcher2, { init: 1 },
'watcher2: when started to watch second file');
// remove first file watcher
fs.unwatchFile(__filename);
checkInvocations(statwatcher1, { init: 1, before: 1, after: 1 },
'watcher1: when unwatched first file');
checkInvocations(statwatcher2, { init: 1 },
'watcher2: when unwatched first file');
setTimeout(() => fs.writeFileSync(file1, 'foo++'),
common.platformTimeout(100));
w1.once('change', common.mustCall(() => {
setImmediate(() => {
checkInvocations(statwatcher1, { init: 1, before: 1, after: 1 },
'watcher1: when unwatched first file');
checkInvocations(statwatcher2, { init: 1 },
'watcher2: when unwatched first file');
// remove second file watcher
fs.unwatchFile(commonPath);
checkInvocations(statwatcher1, { init: 1, before: 1, after: 1 },
'watcher1: when unwatched second file');
checkInvocations(statwatcher2, { init: 1, before: 1, after: 1 },
'watcher2: when unwatched second file');
setTimeout(() => fs.writeFileSync(file2, 'bar++'),
common.platformTimeout(100));
w2.once('change', common.mustCall(() => {
setImmediate(() => {
checkInvocations(statwatcher1, { init: 1, before: 1, after: 1 },
'watcher1: when unwatched second file');
checkInvocations(statwatcher2, { init: 1, before: 1, after: 1 },
'watcher2: when unwatched second file');
fs.unwatchFile(file1);
fs.unwatchFile(file2);
});
}));
});
}));
process.on('exit', onexit);