text: let {assert} = require('chai');
  
  let VectorMath = require('../../');
  
  module.exports = function() {
  	assert.equal(VectorMath.ManhattanDistance([], []), 0);
  	assert.equal(VectorMath.ManhattanDistance([88, -62, 47, 54], [88, -62, 47, 54]), 0);
  	assert.equal(VectorMath.ManhattanDistance([-64, -45, -37, -36], [80, -10, -38, 9]), 225);
  };
  