AwesomeOscillator.js

"use strict";
let assert = require('assert');
let AwesomeOscillator    = require('../../lib/oscillators/AwesomeOscillator').AwesomeOscillator;

let input = {
  high :   [24.63,24.69,24.99,25.36,25.19,25.17,25.01,24.96,25.08,25.25,25.21,25.37,25.61,25.58,25.46,25.33,25.09,25.03,24.91,24.89,25.13,24.63,24.69,24.99,25.36,25.19,25.17,25.01,24.96,25.08,25.25,25.21,25.37,25.61,25.58,25.46,25.33,25.09,25.03,24.91,24.89,25.13],
  low  :   [24.63,24.69,24.99,25.36,25.19,25.17,25.01,24.96,25.08,25.25,25.21,25.37,25.61,25.58,25.46,25.33,25.09,25.03,24.91,24.89,25.13,24.63,24.69,24.99,25.36,25.19,25.17,25.01,24.96,25.08,25.25,25.21,25.37,25.61,25.58,25.46,25.33,25.09,25.03,24.91,24.89,25.13],
  fastPeriod : 5,
  slowPeriod : 34,
  format : (a)=>parseFloat(a.toFixed(2))
}

let expectResult = [0.17,
  0.24,
  0.26,
  0.28,
  0.23,
  0.12,
  -0.01,
  -0.12,
  -0.16]

describe('AwesomeOscillator', function() {
  it('should calculate AwesomeOscillator using the calculate method', function() {
    assert.deepEqual(AwesomeOscillator.calculate(input), expectResult, 'Wrong Results');
  });

  it('should be able to calculate AwesomeOscillator by using getResult', function() {
    let awesomeoscillator = new AwesomeOscillator(input);
    assert.deepEqual(awesomeoscillator.getResult(),  expectResult, 'Wrong Results while calculating next bar');
  });

  it('should be able to get AwesomeOscillator for the next bar using nextValue', function() {
    let awesomeoscillator = new AwesomeOscillator({ high : [], low:[], close:[], volume : [], fastPeriod: 5, slowPeriod : 34});
    let results = [];
    input.high.forEach(function(close,index) {
      let result = awesomeoscillator.nextValue({
        high: input.high[index],
        low: input.low[index],
      });
      if(result !== undefined){
        results.push(parseFloat(result.toFixed(2)));
      }
    });
    assert.deepEqual(results, expectResult, 'Wrong Results while getting results');
  })

  it('should be able to calculate AwesomeOscillator for reversed input by using calculate method', function() {
    let myInput = Object.assign({}, input);
    myInput.reversedInput = true;
    myInput.high.reverse();
    myInput.low.reverse();
    assert.deepEqual(AwesomeOscillator.calculate(myInput),  expectResult.slice().reverse(), 'Wrong Results while calculating next bar');
  });
})