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| Current File : //proc/self/root/home/ubuntu/node-v16.18.1/test/parallel/test-http2-settings-unsolicited-ack.js |
'use strict';
const common = require('../common');
if (!common.hasCrypto)
common.skip('missing crypto');
const assert = require('assert');
const http2 = require('http2');
const net = require('net');
const http2util = require('../common/http2');
const Countdown = require('../common/countdown');
// Test that an unsolicited settings ack is ignored.
const kSettings = new http2util.SettingsFrame();
const kSettingsAck = new http2util.SettingsFrame(true);
const server = http2.createServer();
let client;
const countdown = new Countdown(3, () => {
client.destroy();
server.close();
});
server.on('stream', common.mustNotCall());
server.on('session', common.mustCall((session) => {
session.on('remoteSettings', common.mustCall(() => countdown.dec()));
}));
server.listen(0, common.mustCall(() => {
client = net.connect(server.address().port);
// Ensures that the clients settings frames are not sent until the
// servers are received, so that the first ack is actually expected.
client.once('data', (chunk) => {
// The very first chunk of data we get from the server should
// be a settings frame.
assert.deepStrictEqual(chunk.slice(0, 9), kSettings.data);
// The first ack is expected.
client.write(kSettingsAck.data, () => countdown.dec());
// The second one is not and will be ignored.
client.write(kSettingsAck.data, () => countdown.dec());
});
client.on('connect', common.mustCall(() => {
client.write(http2util.kClientMagic);
client.write(kSettings.data);
}));
}));
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