cbuffer/test/iterator/math-test.js

Circular Buffer JavaScript implementation

var vows = require('vows');
var assert = require('assert');
var suite = vows.describe('math');

require('../env.js');

suite.addBatch({
  'sum' : {
    'topic' : function () {
      return CBuffer;
    },
    'Calculate sum' : function (CBuffer) {
      var tmp;
      tmp = new CBuffer(1,2,3,4);
      assert.equal (tmp.sum(),10);
    },
    'Calculate sum on zero items' : function (CBuffer) {
      var tmp;
      tmp = new CBuffer(10);
      assert.equal (tmp.sum(),0);
    }
  },
  'avg' : {
    'topic' : function () {
      return CBuffer;
    },
    'Calculate average' : function (CBuffer) {
      var tmp;
      tmp = new CBuffer(1,2,3,4);
      assert.equal (tmp.avg(),2.5);
    },
    'Calculate average on zero items(devision by zero)' : function (CBuffer) {
      var tmp;
      tmp = new CBuffer(10);
      assert.equal (tmp.avg(),0);
    }
  },
  'median' : {
    'topic' : function () {
      return CBuffer;
    },
    'Calculate median even buffer length' : function (CBuffer) {
      var tmp;
      tmp = new CBuffer(1,2,3,4);
      assert.equal (tmp.median(),2.5);
    },
    'Calculate median uneven buffer length' : function (CBuffer) {
      var tmp;
      tmp = new CBuffer(1,2,3);
      assert.equal (tmp.median(),2);
    },
    'Calculate median on zero items(devision by zero)' : function (CBuffer) {
      var tmp;
      tmp = new CBuffer(10);
      assert.equal (tmp.median(),0);
    }
  }
});

suite.export(module);