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testLogic.js
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testLogic.js
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/*
* == BSD2 LICENSE ==
* Copyright (c) 2014, Tidepool Project
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the associated License, which is identical to the BSD 2-Clause
* License as published by the Open Source Initiative at opensource.org.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the License for more details.
*
* You should have received a copy of the License along with this program; if
* not, you can obtain one from Tidepool Project at tidepool.org.
* == BSD2 LICENSE ==
*/
/* global describe, it */
var _ = require('lodash');
var expect = require('salinity').expect;
var logic = require('../../../lib/drivers/insulet/objectBuildingLogic');
describe('objectBuildingLogic', function() {
describe('calculateNetRecommendation', function() {
var wizDetails = {
carb_bolus_units_suggested: 5.0,
corr_units_suggested: 2.0,
meal_units_iob: 0.0,
corr_units_iob: 1.5,
current_bg: 150
};
it('should be a function', function() {
expect(logic.calculateNetRecommendation).to.exist;
expect(typeof logic.calculateNetRecommendation).to.equal('function');
});
it('should subtract total IOB from suggested correction when a BG is input', function() {
expect(logic.calculateNetRecommendation(wizDetails)).to.equal(5.5);
});
it('should not take IOB into account if no BG value was input', function() {
var details = _.assign({}, wizDetails, {current_bg: 65535});
expect(logic.calculateNetRecommendation(details)).to.equal(5.0);
});
it('should subtract leftover suggestion from bolus when correction IOB is >= suggested correction', function() {
var details = _.assign({}, wizDetails, {corr_units_iob: 2.5});
expect(logic.calculateNetRecommendation(details)).to.equal(4.5);
});
it('should subtract total IOB from bolus if meal IOB is < suggested correction', function() {
var details = _.assign({}, wizDetails, {meal_units_iob: 0.5});
expect(logic.calculateNetRecommendation(details)).to.equal(5.0);
});
it('should add a negative correction to the total if present', function() {
var details = _.assign({}, wizDetails, {current_bg: 50, corr_units_suggested: -1.0});
expect(logic.calculateNetRecommendation(details)).to.equal(2.5);
});
it('should never recommended a net negative bolus', function() {
var details = _.assign({}, wizDetails, {meal_units_iob: 1.0, carb_bolus_units_suggested: 0.0});
expect(logic.calculateNetRecommendation(details)).to.equal(0.0);
});
});
});