Merge pull request #27 from jasoncalabrese/wip/iob-test

a couple basic IOB test to make sure 3hr and 4hr dia's work

lib/iob/total.js

@@ -12,7 +12,7 @@ function iobTotal(opts, time) {
     //}
 
     treatments.forEach(function(treatment) {
-        if(treatment.date < time.getTime( )) {
+        if(treatment.date <= time.getTime( )) {
             var dia = profile_data.dia;
             var tIOB = iobCalc(treatment, time, dia);
             if (tIOB && tIOB.iobContrib) iob += tIOB.iobContrib;

tests/iob.test.js

@@ -0,0 +1,83 @@
+'use strict';
+
+require('should');
+
+describe('IOB', function ( ) {
+
+  it('should calculate IOB', function() {
+
+    var now = Date.now()
+      , timestamp = new Date(now).toISOString()
+      , inputs = {
+        clock: timestamp
+        , history: [{
+        _type: 'Bolus'
+        , amount: 1
+        , timestamp: timestamp
+        }]
+        , profile: {
+          dia: 3
+        }
+      };
+
+    var rightAfterBolus = require('../lib/iob')(inputs);
+    rightAfterBolus.iob.should.equal(1);
+    rightAfterBolus.bolusiob.should.equal(1);
+
+    var hourLaterInputs = inputs;
+    hourLaterInputs.clock = new Date(now + (60 * 60 * 1000)).toISOString();
+    var hourLater = require('../lib/iob')(hourLaterInputs);
+    hourLater.iob.should.be.lessThan(1);
+    hourLater.bolusiob.should.be.lessThan(.5);
+    hourLater.iob.should.be.greaterThan(0);
+
+    var afterDIAInputs = inputs;
+    afterDIAInputs.clock = new Date(now + (3 * 60 * 60 * 1000)).toISOString();
+    var afterDIA = require('../lib/iob')(afterDIAInputs);
+
+    afterDIA.iob.should.equal(0);
+    afterDIA.bolusiob.should.equal(0);
+
+  });
+
+  it('should calculate IOB using a 4 hour duration', function() {
+
+    var now = Date.now()
+      , timestamp = new Date(now).toISOString()
+      , inputs = {
+        clock: timestamp
+        , history: [{
+          _type: 'Bolus'
+          , amount: 1
+          , timestamp: timestamp
+        }]
+        , profile: {
+          dia: 4
+        }
+      };
+
+    var rightAfterBolus = require('../lib/iob')(inputs);
+    rightAfterBolus.iob.should.equal(1);
+    rightAfterBolus.bolusiob.should.equal(1);
+
+    var hourLaterInputs = inputs;
+    hourLaterInputs.clock = new Date(now + (60 * 60 * 1000)).toISOString();
+    var hourLater = require('../lib/iob')(hourLaterInputs);
+    hourLater.iob.should.be.lessThan(1);
+    hourLater.bolusiob.should.be.lessThan(.5);
+    hourLater.iob.should.be.greaterThan(0);
+
+    var after3hDIAInputs = inputs;
+    after3hDIAInputs.clock = new Date(now + (3 * 60 * 60 * 1000)).toISOString();
+    var after3hDIA = require('../lib/iob')(after3hDIAInputs);
+    after3hDIA.iob.should.greaterThan(0);
+
+    var after4hDIAInputs = inputs;
+    after4hDIAInputs.clock = new Date(now + (4 * 60 * 60 * 1000)).toISOString();
+    var after4hDIA = require('../lib/iob')(after4hDIAInputs);
+    after4hDIA.iob.should.equal(0);
+
+  });
+
+
+});