take.js

/* vim:set ts=2 sw=2 sts=2 expandtab */
/*jshint asi: true undef: true es5: true node: true browser: true devel: true
         forin: true latedef: false globalstrict: true*/
'use strict';

var take = require('../core').take
var into = require('../accumulator').into

exports['test take'] = function(assert) {
  var actual = take([ 1, 2, 3, 4 ], 2)

  assert.deepEqual(into(actual), [ 1, 2 ], 'picked two items')
  assert.deepEqual(into(actual), [ 1, 2 ], 'can be re-reduced same')
}

exports['test take none'] = function(assert) {
  var actual = take([ 1, 2, 3, 4 ], 0)

  assert.deepEqual(into(actual), [], 'picks none on 0')
}

exports['test take all'] = function(assert) {
  var actual = take([ 1, 2, 3, 4 ], 100)

  assert.deepEqual(into(actual), [ 1, 2, 3, 4 ],
                   'picks all if has less than requested')
}

if (module == require.main)
  require('test').run(exports)