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test: dynamic port in dgram bind shared ports #12620

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test: dynamic port in dgram bind shared ports #12620

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45 changes: 32 additions & 13 deletions test/parallel/test-dgram-bind-shared-ports.js
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Original file line number Diff line number Diff line change
Expand Up @@ -26,7 +26,10 @@ const cluster = require('cluster');
const dgram = require('dgram');

if (cluster.isMaster) {
const worker1 = cluster.fork();
const worker1 = cluster.fork({
SOCKET1: 0,
SOCKET2: 0
});

if (common.isWindows) {
const checkErrType = (er) => {
Expand All @@ -38,16 +41,21 @@ if (cluster.isMaster) {
return;
}

worker1.on('message', (msg) => {
assert.strictEqual(msg, 'success');
const worker2 = cluster.fork();
worker1.on('message', common.mustCall((msg) => {
assert(msg.socketPort1);
assert(msg.socketPort2);

const worker2 = cluster.fork({
SOCKET1: msg.socketPort1,
SOCKET2: msg.socketPort2
});

worker2.on('message', (msg) => {
worker2.on('message', common.mustCall((msg) => {
assert.strictEqual(msg, 'socket2:EADDRINUSE');
worker1.kill();
worker2.kill();
});
});
}));
}));
} else {
const socket1 = dgram.createSocket('udp4', common.noop);
const socket2 = dgram.createSocket('udp4', common.noop);
Expand All @@ -64,12 +72,23 @@ if (cluster.isMaster) {

socket1.bind({
address: 'localhost',
port: common.PORT,
port: 0,
exclusive: false
}, () => {
socket2.bind({ port: common.PORT + 1, exclusive: true }, () => {
}, common.mustCall(() => {
if (process.env.SOCKET1 !== '0') {
assert.strictEqual(process.env.SOCKET1, '' + socket1.address().port);
}

socket2.bind({
address: 'localhost',
port: process.env.SOCKET2,
exclusive: true
}, common.mustCall(() => {
// the first worker should succeed
process.send('success');
});
});
process.send({
socketPort1: socket1.address().port,
socketPort2: socket2.address().port
});
}));
}));
}