Function testDiagnosticChannel

test/parallel/test-diagnostics-channel-net.js:11–18

(subscribers, test, after)

const isNetServer = (server) => server instanceof net.Server;

function testDiagnosticChannel(subscribers, test, after) {
  dc.tracingChannel('net.server.listen').subscribe(subscribers);

  test(common.mustCall(() => {
    dc.tracingChannel('net.server.listen').unsubscribe(subscribers);
    after?.();
  }));
}

const testSuccessfulListen = common.mustCall(() => {
  let cb;