Best JavaScript code snippets using child_process.ChildProcess.once(Showing top 9 results out of 315)

it('should catch unhandled promise rebind', function(done) {
 if (process.version.indexOf('v0') > -1) return done()
 var app = forkPromiseExceptionRebind();
 app.once('message', function(data) {
  data.type.should.eql('axm:option:configuration');
  app.once('message', function(data) {
   data.type.should.eql('process:exception');
   data.data.message.should.eql('fail');
   process.kill(app.pid);
   done();
  });
 });
});

function measure(filename, { repeats = 1 }) {
  const testProcess = childProcess.fork(require.resolve('./runner'), [
    '--repeats', repeats,
    '--module', filename
  ]);

  return new Promise((resolve, reject) => {
    testProcess.once('message', serializedResult => resolve(new BenchmarkResult(serializedResult)));
    testProcess.once('exit', reject);
  });
}

it('should notify process about error', function(done) {
 var app = forkNotify();
 app.once('message', function(data) {
  data.type.should.eql('process:exception');
  data.data.message.should.eql('hey');
  process.kill(app.pid);
  done();
 });
});

it('should catchAll exception in fork mode', function(done) {
 var app = forkCatch();
 app.once('message', function(data) {
  data.type.should.eql('axm:option:configuration');
  app.once('message', function(data) {
   should.exist(data.data.stackframes);
   should.exist(data.data.stackframes[0].file_name);
   should.exist(data.data.stackframes[0].line_number);
   data.type.should.eql('process:exception');
   data.data.message.should.eql('global error');
   process.kill(app.pid);
   done();
  });
 });
});

var app = fork();
app.once('message', function(pck) {
 pck.type.should.eql('axm:monitor');
 pck.data.value.should.eql(20);
 app.once('message', function(pck) {
  pck.type.should.eql('axm:monitor');
var app = forkMonitor2();
app.once('message', function(pck) {
 pck.type.should.eql('axm:monitor');
 pck.data.countFn.should.eql(2);
 app.once('message', function(pck) {
  pck.type.should.eql('axm:monitor');

});
console.log(`[INFO] Executed: '${command}'`);
cp.once('close', code => {
 if (code > 0) {
  console.log(`[ERROR] '${command}' Exited with code ${code}`);

it('should catch unhandled promise', function(done) {
 if (process.version.indexOf('v0') > -1) return done()
 var app = forkPromiseRejectError();
 app.once('message', function(data) {
  data.type.should.eql('axm:option:configuration');
  app.once('message', function(data) {
   data.type.should.eql('process:exception');
   data.data.message.should.eql('ok');
   process.kill(app.pid);
   done();
  });
 });
});

it('should catch empty unhandled promise', function(done) {
 if (process.version.indexOf('v0') > -1) return done()
 var app = forkPromiseEmptyException();
 app.once('message', function(data) {
  data.type.should.eql('axm:option:configuration');
  app.once('message', function(data) {
   data.type.should.eql('process:exception');
   data.data.message.should.eql('No error but unhandledRejection was caught!');
   process.kill(app.pid);
   done();
  });
 });
});

it('should catch unhandled promise', function(done) {
 if (process.version.indexOf('v0') > -1) return done()
 var app = forkPromiseException();
 app.once('message', function(data) {
  data.type.should.eql('axm:option:configuration');
  app.once('message', function(data) {
   data.type.should.eql('process:exception');
   data.data.message.should.eql('fail');
   process.kill(app.pid);
   done();
  });
 });
});