fixed date comparison, added mocha test

package.json

@@ -5,7 +5,9 @@
   "dependencies": {
     "express": "^4.4.4"
   },
-  "devDependencies": {},
+  "devDependencies": {
+    "chai": "^1.9.1"
+  },
   "author": "",
   "license": "ISC",
   "scripts": {

timeUtils.js

@@ -15,7 +15,7 @@ function transformTimeSpan(timeSpan) {
 }
 
 function _cyclicInterval(from, until, interval, epochStart, epochEnd) {
-  if(from >= until) throw new Error("startDate cant be greater than endDate");
+  if(from.getTime() >= until.getTime()) throw new Error("startDate cant be greater than endDate");
   var resultArray = [];
   for(var offset = 0; until.getTime() + offset < epochEnd.getTime(); offset += interval) {
     resultArray.push([new Date(from.getTime() + offset), new Date(until.getTime() + offset)]);
@@ -54,7 +54,7 @@ function standardFromTillDay(daySpan, timeSpan, dateSpan, epochSpan, daysDistanc
       var end = new Date(firstDays[i][1]);
       start.setDate(start.getDate() + offset);
       end.setDate(end.getDate() + offset);
-      if(end <= epochEnd)
+      if(end.getTime() <= epochEnd.getTime())
         result.push([start, end]);
     }
   }
@@ -74,7 +74,7 @@ function cyclic(day, noInMonth, timeFrom, timeUntil, epochStart, epochEnd) {
     var endDate = new Date(startDate);
     endDate.setHours(timeUntil.h);
     endDate.setMinutes(timeUntil.m);
-    if(endDate > epochEnd)
+    if(endDate.getTime() > epochEnd.getTime())
       break;
     else {
       result.push([startDate, endDate]);
@@ -98,8 +98,8 @@ function cyclicFromTillDay(daySpan, noInMonth, timeSpan, dateSpan, epochSpan) {
   var endDate = dateSpan[1];
 
   //limit dateSpan to epochSpan, to reduce costs
-  if(endDate > epochSpan[1]) endDate = epochSpan[1];
-  if(startDate < epochSpan[0]) {
+  if(endDate.getTime() > epochSpan[1].getTime()) endDate = epochSpan[1];
+  if(startDate.getTime() < epochSpan[0].getTime()) {
     var t = epochSpan[0];
     //substract 1 month to cover special cases
     startDate = new Date(t.getFullYear(), t.getMonth() - 1, t.getDate())
@@ -115,7 +115,7 @@ function cyclicFromTillDay(daySpan, noInMonth, timeSpan, dateSpan, epochSpan) {
     var date1 = new Date(date0);
     date1.setHours(timeUntil.h);
     date1.setMinutes(timeUntil.m);
-    if(date1 > endDate)
+    if(date1.getTime() > endDate.getTime())
       break;
     else {
       result.push([date0, date1]);
@@ -126,7 +126,7 @@ function cyclicFromTillDay(daySpan, noInMonth, timeSpan, dateSpan, epochSpan) {
         date1 = new Date(date1);
         date0.setDate(date0.getDate() + 1);
         date1.setDate(date1.getDate() + 1);
-        if(date1 <= endDate)
+        if(date1.getTime() <= endDate.getTime())
           result.push([date0, date1]);
         else break;
       }
@@ -239,7 +239,7 @@ function mergeOverlaps(interval) {
     var endFirst = interval[i][1];
     var startSecond = interval[i + 1][0];
     var endSecond = interval[i + 1][1];
-    if(endFirst >= startSecond) {
+    if(endFirst.getTime() >= startSecond.getTime()) {
       interval.splice(i + 1, 1);
       interval[i][1] = new Date(Math.max(endFirst, endSecond));
     }
@@ -260,16 +260,16 @@ function andOperator(interval1, interval2) {
     var end2 = interval2[j][1];
 
     //no overlap
-    if(end2 <= start1)
+    if(end2.getTime() <= start1.getTime())
       j++;
-    else if(end1 <= start2)
+    else if(end1.getTime() <= start2.getTime())
       i++;
 
     //overlap
     else {
       var newStart;
       var newEnd;
-      if(end2 <= end1) {
+      if(end2.getTime() <= end1.getTime()) {
         j++;
         newEnd = end2;
       }
@@ -289,11 +289,11 @@ function invert(interval, epochStart, epochEnd) {
   var start = epochStart;
   for(var i = 0; i < interval.length; i++) {
     var end = interval[i][0];
-    if(start < end)
+    if(start.getTime() < end.getTime())
       result.push([start, end]);
     start = interval[i][1];
   }
-  if(start < epochEnd)
+  if(start.getTime() < epochEnd.getTime())
     result.push([start, epochEnd]);
   return result;
 }