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Filename : num-args.js
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// Copyright Joyent, Inc. and other Node contributors.
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require('./common');
var assert = require('assert');
var events = require('../');

var e = new events.EventEmitter();
var num_args_emitted = [];

e.on('numArgs', function() {
  var numArgs = arguments.length;
  num_args_emitted.push(numArgs);
});

e.on('foo', function() {
  num_args_emitted.push(arguments.length);
});

e.on('foo', function() {
  num_args_emitted.push(arguments.length);
});

e.emit('numArgs');
e.emit('numArgs', null);
e.emit('numArgs', null, null);
e.emit('numArgs', null, null, null);
e.emit('numArgs', null, null, null, null);
e.emit('numArgs', null, null, null, null, null);

e.emit('foo', null, null, null, null);

assert.ok(Array.isArray(num_args_emitted));
assert.strictEqual(num_args_emitted.length, 8);
assert.strictEqual(num_args_emitted[0], 0);
assert.strictEqual(num_args_emitted[1], 1);
assert.strictEqual(num_args_emitted[2], 2);
assert.strictEqual(num_args_emitted[3], 3);
assert.strictEqual(num_args_emitted[4], 4);
assert.strictEqual(num_args_emitted[5], 5);
assert.strictEqual(num_args_emitted[6], 4);
assert.strictEqual(num_args_emitted[6], 4);