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'use strict';
const common = require('../common');
const assert = require('assert');
const net = require('net');
const N = 1024 * 1024;
const part_N = N / 3;
let chars_recved = 0;
let npauses = 0;
console.log('build big string');
const body = 'C'.repeat(N);
console.log('start server on port ' + common.PORT);
const server = net.createServer(function(connection) {
connection.write(body.slice(0, part_N));
connection.write(body.slice(part_N, 2 * part_N));
assert.equal(false, connection.write(body.slice(2 * part_N, N)));
console.log('bufferSize: ' + connection.bufferSize, 'expecting', N);
assert.ok(0 <= connection.bufferSize &&
connection._writableState.length <= N);
connection.end();
});
server.listen(common.PORT, function() {
let paused = false;
const client = net.createConnection(common.PORT);
client.setEncoding('ascii');
client.on('data', function(d) {
chars_recved += d.length;
console.log('got ' + chars_recved);
if (!paused) {
client.pause();
npauses += 1;
paused = true;
console.log('pause');
const x = chars_recved;
setTimeout(function() {
assert.equal(chars_recved, x);
client.resume();
console.log('resume');
paused = false;
}, 100);
}
});
client.on('end', function() {
server.close();
client.end();
});
});
process.on('exit', function() {
assert.equal(N, chars_recved);
assert.equal(true, npauses > 2);
});
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