test-socketaddress.js

// Flags: --expose-internals
'use strict';

const common = require('../common');
const {
  ok,
  strictEqual,
  throws,
} = require('assert');
const {
  SocketAddress,
} = require('net');

const {
  InternalSocketAddress,
} = require('internal/socketaddress');
const { internalBinding } = require('internal/test/binding');
const {
  SocketAddress: _SocketAddress,
  AF_INET
} = internalBinding('block_list');

{
  const sa = new SocketAddress();
  strictEqual(sa.address, '127.0.0.1');
  strictEqual(sa.port, 0);
  strictEqual(sa.family, 'ipv4');
  strictEqual(sa.flowlabel, 0);

  const mc = new MessageChannel();
  mc.port1.onmessage = common.mustCall(({ data }) => {
    ok(SocketAddress.isSocketAddress(data));

    strictEqual(data.address, '127.0.0.1');
    strictEqual(data.port, 0);
    strictEqual(data.family, 'ipv4');
    strictEqual(data.flowlabel, 0);

    mc.port1.close();
  });
  mc.port2.postMessage(sa);
}

{
  const sa = new SocketAddress({});
  strictEqual(sa.address, '127.0.0.1');
  strictEqual(sa.port, 0);
  strictEqual(sa.family, 'ipv4');
  strictEqual(sa.flowlabel, 0);
}

{
  const sa = new SocketAddress({
    address: '123.123.123.123',
  });
  strictEqual(sa.address, '123.123.123.123');
  strictEqual(sa.port, 0);
  strictEqual(sa.family, 'ipv4');
  strictEqual(sa.flowlabel, 0);
}

{
  const sa = new SocketAddress({
    address: '123.123.123.123',
    port: 80
  });
  strictEqual(sa.address, '123.123.123.123');
  strictEqual(sa.port, 80);
  strictEqual(sa.family, 'ipv4');
  strictEqual(sa.flowlabel, 0);
}

{
  const sa = new SocketAddress({
    family: 'ipv6'
  });
  strictEqual(sa.address, '::');
  strictEqual(sa.port, 0);
  strictEqual(sa.family, 'ipv6');
  strictEqual(sa.flowlabel, 0);
}

{
  const sa = new SocketAddress({
    family: 'ipv6',
    flowlabel: 1,
  });
  strictEqual(sa.address, '::');
  strictEqual(sa.port, 0);
  strictEqual(sa.family, 'ipv6');
  strictEqual(sa.flowlabel, 1);
}

[1, false, 'hello'].forEach((i) => {
  throws(() => new SocketAddress(i), {
    code: 'ERR_INVALID_ARG_TYPE'
  });
});

[1, false, {}, [], 'test'].forEach((family) => {
  throws(() => new SocketAddress({ family }), {
    code: 'ERR_INVALID_ARG_VALUE'
  });
});

[1, false, {}, []].forEach((address) => {
  throws(() => new SocketAddress({ address }), {
    code: 'ERR_INVALID_ARG_TYPE'
  });
});

[-1, false, {}, []].forEach((port) => {
  throws(() => new SocketAddress({ port }), {
    code: 'ERR_SOCKET_BAD_PORT'
  });
});

throws(() => new SocketAddress({ flowlabel: -1 }), {
  code: 'ERR_OUT_OF_RANGE'
});

{
  // Test that the internal helper class InternalSocketAddress correctly
  // inherits from SocketAddress and that it does not throw when its properties
  // are accessed.

  const address = '127.0.0.1';
  const port = 8080;
  const flowlabel = 0;
  const handle = new _SocketAddress(address, port, AF_INET, flowlabel);
  const addr = new InternalSocketAddress(handle);
  ok(addr instanceof SocketAddress);
  strictEqual(addr.address, address);
  strictEqual(addr.port, port);
  strictEqual(addr.family, 'ipv4');
  strictEqual(addr.flowlabel, flowlabel);
}