nodejs/test/parallel/test-diagnostics-channel-http2-client-stream-start.js
Darshan Sen b1973550e0
http2: add diagnostics channel 'http2.client.stream.start'
Signed-off-by: Darshan Sen <raisinten@gmail.com>
PR-URL: https://github.com/nodejs/node/pull/58292
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
2025-05-14 07:41:42 +00:00

60 lines
1.8 KiB
JavaScript

'use strict';
const common = require('../common');
if (!common.hasCrypto)
common.skip('missing crypto');
// This test ensures that the built-in HTTP/2 diagnostics channels are reporting
// the diagnostics messages for the 'http2.client.stream.start' channel when
// ClientHttp2Streams are started by both:
// - the client calling ClientHttp2Session#request()
// - in response to an incoming 'push' event from the server
const Countdown = require('../common/countdown');
const assert = require('assert');
const dc = require('diagnostics_channel');
const http2 = require('http2');
const { Duplex } = require('stream');
const clientHttp2StreamStartCount = 2;
dc.subscribe('http2.client.stream.start', common.mustCall(({ stream, headers }) => {
// Since ClientHttp2Stream is not exported from any module, this just checks
// if the stream is an instance of Duplex.
assert.ok(stream instanceof Duplex);
assert.strictEqual(stream.constructor.name, 'ClientHttp2Stream');
assert.ok(headers && !Array.isArray(headers) && typeof headers === 'object');
}, clientHttp2StreamStartCount));
const server = http2.createServer();
server.on('stream', common.mustCall((stream) => {
stream.respond();
stream.end();
stream.pushStream({}, common.mustSucceed((pushStream) => {
pushStream.respond();
pushStream.end();
}, 1));
}, 1));
server.listen(0, common.mustCall(() => {
const port = server.address().port;
const client = http2.connect(`http://localhost:${port}`);
const countdown = new Countdown(clientHttp2StreamStartCount, () => {
client.close();
server.close();
});
const stream = client.request({});
stream.on('response', common.mustCall(() => {
countdown.dec();
}));
client.on('stream', common.mustCall((pushStream) => {
pushStream.on('push', common.mustCall(() => {
countdown.dec();
}, 1));
}, 1));
}, 1));