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test: wrap countdown callback in common.mustCall
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This adds a implicit common.mustCall to the callback provided to
the countdown.

PR-URL: #18506
Reviewed-By: Anatoli Papirovski <[email protected]>
Reviewed-By: Ruben Bridgewater <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: James M Snell <[email protected]>
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Bamieh authored and MylesBorins committed Aug 16, 2018
1 parent 0977f04 commit d0083cb
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Showing 15 changed files with 55 additions and 29 deletions.
2 changes: 1 addition & 1 deletion test/common/README.md
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Expand Up @@ -388,7 +388,7 @@ Synchronous version of `spawnPwd`.
The `Countdown` module provides a simple countdown mechanism for tests that
require a particular action to be taken after a given number of completed
tasks (for instance, shutting down an HTTP server after a specific number of
requests).
requests). The Countdown will fail the test if the remainder did not reach 0.

<!-- eslint-disable strict, required-modules -->
```js
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3 changes: 2 additions & 1 deletion test/common/countdown.js
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Expand Up @@ -4,13 +4,14 @@
const assert = require('assert');
const kLimit = Symbol('limit');
const kCallback = Symbol('callback');
const common = require('./');

class Countdown {
constructor(limit, cb) {
assert.strictEqual(typeof limit, 'number');
assert.strictEqual(typeof cb, 'function');
this[kLimit] = limit;
this[kCallback] = cb;
this[kCallback] = common.mustCall(cb);
}

dec() {
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2 changes: 2 additions & 0 deletions test/fixtures/failcounter.js
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@@ -0,0 +1,2 @@
const Countdown = require('../common/countdown');
new Countdown(2, () => {});
22 changes: 20 additions & 2 deletions test/parallel/test-common-countdown.js
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Expand Up @@ -3,13 +3,31 @@
const common = require('../common');
const assert = require('assert');
const Countdown = require('../common/countdown');
const fixtures = require('../common/fixtures');
const { execFile } = require('child_process');

let done = '';

const countdown = new Countdown(2, common.mustCall(() => done = true));
const countdown = new Countdown(2, () => done = true);
assert.strictEqual(countdown.remaining, 2);
countdown.dec();
assert.strictEqual(countdown.remaining, 1);
countdown.dec();
assert.strictEqual(countdown.remaining, 0);
assert.strictEqual(done, true);

const failFixtures = [
[
fixtures.path('failcounter.js'),
'Mismatched <anonymous> function calls. Expected exactly 1, actual 0.',
]
];

for (const p of failFixtures) {
const [file, expected] = p;
execFile(process.argv[0], [file], common.mustCall((ex, stdout, stderr) => {
assert.ok(ex);
assert.strictEqual(stderr, '');
const firstLine = stdout.split('\n').shift();
assert.strictEqual(firstLine, expected);
}));
}
2 changes: 1 addition & 1 deletion test/parallel/test-http-after-connect.js
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Expand Up @@ -32,7 +32,7 @@ const server = http.createServer(common.mustCall((req, res) => {
setTimeout(() => res.end(req.url), 50);
}, 2));

const countdown = new Countdown(2, common.mustCall(() => server.close()));
const countdown = new Countdown(2, () => server.close());

server.on('connect', common.mustCall((req, socket) => {
socket.write('HTTP/1.1 200 Connection established\r\n\r\n');
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2 changes: 1 addition & 1 deletion test/parallel/test-http-agent-destroyed-socket.js
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Expand Up @@ -80,7 +80,7 @@ const server = http.createServer(common.mustCall((req, res) => {
assert(request1.socket.destroyed);
// assert not reusing the same socket, since it was destroyed.
assert.notStrictEqual(request1.socket, request2.socket);
const countdown = new Countdown(2, common.mustCall(() => server.close()));
const countdown = new Countdown(2, () => server.close());
request2.socket.on('close', common.mustCall(() => countdown.dec()));
response.on('end', common.mustCall(() => countdown.dec()));
response.resume();
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2 changes: 1 addition & 1 deletion test/parallel/test-http-agent-maxsockets-regress-4050.js
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Expand Up @@ -17,7 +17,7 @@ const server = http.createServer(common.mustCall((req, res) => {
res.end('hello world');
}, 6));

const countdown = new Countdown(6, common.mustCall(() => server.close()));
const countdown = new Countdown(6, () => server.close());

function get(path, callback) {
return http.get({
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4 changes: 2 additions & 2 deletions test/parallel/test-http-agent-maxsockets.js
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Expand Up @@ -26,13 +26,13 @@ function get(path, callback) {
}, callback);
}

const countdown = new Countdown(2, common.mustCall(() => {
const countdown = new Countdown(2, () => {
const freepool = agent.freeSockets[Object.keys(agent.freeSockets)[0]];
assert.strictEqual(freepool.length, 2,
`expect keep 2 free sockets, but got ${freepool.length}`);
agent.destroy();
server.close();
}));
});

function dec() {
process.nextTick(() => countdown.dec());
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6 changes: 3 additions & 3 deletions test/parallel/test-http-client-abort.js
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Expand Up @@ -26,7 +26,7 @@ const Countdown = require('../common/countdown');

const N = 8;

const countdown = new Countdown(N, common.mustCall(() => server.close()));
const countdown = new Countdown(N, () => server.close());

const server = http.Server(common.mustCall((req, res) => {
res.writeHead(200);
Expand All @@ -37,9 +37,9 @@ const server = http.Server(common.mustCall((req, res) => {
server.listen(0, common.mustCall(() => {

const requests = [];
const reqCountdown = new Countdown(N, common.mustCall(() => {
const reqCountdown = new Countdown(N, () => {
requests.forEach((req) => req.abort());
}));
});

const options = { port: server.address().port };

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2 changes: 1 addition & 1 deletion test/parallel/test-http-client-parse-error.js
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Expand Up @@ -25,7 +25,7 @@ const http = require('http');
const net = require('net');
const Countdown = require('../common/countdown');

const countdown = new Countdown(2, common.mustCall(() => server.close()));
const countdown = new Countdown(2, () => server.close());

const payloads = [
'HTTP/1.1 302 Object Moved\r\nContent-Length: 0\r\n\r\nhi world',
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23 changes: 14 additions & 9 deletions test/parallel/test-http-exceptions.js
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Expand Up @@ -21,7 +21,12 @@

'use strict';
require('../common');
const Countdown = require('../common/countdown');
const http = require('http');
const NUMBER_OF_EXCEPTIONS = 4;
const countdown = new Countdown(NUMBER_OF_EXCEPTIONS, () => {
process.exit(0);
});

const server = http.createServer(function(req, res) {
intentionally_not_defined(); // eslint-disable-line no-undef
Expand All @@ -30,16 +35,16 @@ const server = http.createServer(function(req, res) {
res.end();
});

function onUncaughtException(err) {
console.log(`Caught an exception: ${err}`);
if (err.name === 'AssertionError') throw err;
countdown.dec();
}

process.on('uncaughtException', onUncaughtException);

server.listen(0, function() {
for (let i = 0; i < 4; i += 1) {
for (let i = 0; i < NUMBER_OF_EXCEPTIONS; i += 1) {
http.get({ port: this.address().port, path: `/busy/${i}` });
}
});

let exception_count = 0;

process.on('uncaughtException', function(err) {
console.log(`Caught an exception: ${err}`);
if (err.name === 'AssertionError') throw err;
if (++exception_count === 4) process.exit(0);
});
4 changes: 2 additions & 2 deletions test/parallel/test-http2-no-more-streams.js
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Expand Up @@ -23,10 +23,10 @@ server.listen(0, common.mustCall(() => {

assert.strictEqual(client.state.nextStreamID, nextID);

const countdown = new Countdown(2, common.mustCall(() => {
const countdown = new Countdown(2, () => {
server.close();
client.close();
}));
});

{
// This one will be ok
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4 changes: 2 additions & 2 deletions test/parallel/test-http2-server-rst-stream.js
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Expand Up @@ -32,10 +32,10 @@ server.on('stream', (stream, headers) => {
server.listen(0, common.mustCall(() => {
const client = http2.connect(`http://localhost:${server.address().port}`);

const countdown = new Countdown(tests.length, common.mustCall(() => {
const countdown = new Countdown(tests.length, () => {
client.close();
server.close();
}));
});

tests.forEach((test) => {
const req = client.request({
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4 changes: 2 additions & 2 deletions test/parallel/test-performanceobserver.js
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Expand Up @@ -64,10 +64,10 @@ assert.strictEqual(counts[NODE_PERFORMANCE_ENTRY_TYPE_FUNCTION], 0);
new PerformanceObserver(common.mustCall(callback, 3));

const countdown =
new Countdown(3, common.mustCall(() => {
new Countdown(3, () => {
observer.disconnect();
assert.strictEqual(counts[NODE_PERFORMANCE_ENTRY_TYPE_MARK], 1);
}));
});

function callback(list, obs) {
assert.strictEqual(obs, observer);
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Original file line number Diff line number Diff line change
Expand Up @@ -33,7 +33,7 @@ const server = net.createServer(function onClient(client) {
});

server.listen(0, common.localhostIPv4, common.mustCall(() => {
const countdown = new Countdown(2, common.mustCall(() => server.close()));
const countdown = new Countdown(2, () => server.close());

{
const client = net.connect({ port: server.address().port });
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