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'use strict';
// Verifies that a full HTTP2 pipeline handles backpressure.
const common = require('../common');
if (!common.hasCrypto)
common.skip('missing crypto');
const assert = require('assert');
const http2 = require('http2');
const makeDuplexPair = require('../common/duplexpair');
{
let req;
const server = http2.createServer();
server.on('stream', mustCallAsync(async (stream, headers) => {
stream.respond({
'content-type': 'text/html',
':status': 200
});
req._readableState.highWaterMark = 20;
stream._writableState.highWaterMark = 20;
assert.strictEqual(stream.write('A'.repeat(5)), true);
assert.strictEqual(stream.write('A'.repeat(40)), false);
assert.strictEqual(await event(req, 'data'), 'A'.repeat(5));
assert.strictEqual(await event(req, 'data'), 'A'.repeat(40));
await event(stream, 'drain');
assert.strictEqual(stream.write('A'.repeat(5)), true);
assert.strictEqual(stream.write('A'.repeat(40)), false);
}));
const { clientSide, serverSide } = makeDuplexPair();
server.emit('connection', serverSide);
const client = http2.connect('http://localhost:80', {
createConnection: common.mustCall(() => clientSide)
});
req = client.request({ ':path': '/' });
req.setEncoding('utf8');
req.end();
}
function event(ee, eventName) {
return new Promise((resolve) => {
ee.once(eventName, common.mustCall(resolve));
});
}
function mustCallAsync(fn, exact) {
return common.mustCall((...args) => {
return Promise.resolve(fn(...args)).then(common.mustCall((val) => val));
}, exact);
}
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