From 7757cc98ab01a1993aa143cffbef35dbc0e84a6b Mon Sep 17 00:00:00 2001
From: Chris Cowan <chriscowan@plus3network.com>
Date: Mon, 24 Feb 2014 15:26:11 -0700
Subject: [PATCH] Adding checks for arguments

---
 src/courier/calculateIndices.js     |  6 +++++-
 test/unit/specs/calculateIndices.js | 19 +++----------------
 2 files changed, 8 insertions(+), 17 deletions(-)

diff --git a/src/courier/calculateIndices.js b/src/courier/calculateIndices.js
index 1f0cebe553f57..6c336d3ff79d5 100644
--- a/src/courier/calculateIndices.js
+++ b/src/courier/calculateIndices.js
@@ -2,13 +2,17 @@ define(function (require) {
   return function (start, end, interval, pattern) {
 
     if (end.isBefore(start)) {
-      throw new Error('Start must begin before end');
+      throw new Error('Start must begin before end.');
     }
 
     if (!~['hour','day','week','year'].indexOf(interval)) {
       throw new Error('Interval must be hour, day, week, or year.');
     }
 
+    if (!pattern) {
+      throw new Error('Pattern can not be empty.');
+    }
+
     var data = [];  
     while(start.isBefore(end)) {
       start.add(interval, '1');
diff --git a/test/unit/specs/calculateIndices.js b/test/unit/specs/calculateIndices.js
index b6f1da0899e84..474dafb3e6841 100644
--- a/test/unit/specs/calculateIndices.js
+++ b/test/unit/specs/calculateIndices.js
@@ -5,19 +5,18 @@ define(function (require) {
   describe('calculateIndices()', function () {
 
     describe('error checking', function() {
-
       it('should throw an error if start is > end', function () {
         expect(function () { calculateIndices(moment().add('day', 1), moment()); }).to.throwError();
       });
-
       it('should throw an error if interval is not [ hour, day, week, year ]', function () {
         expect(function () { calculateIndices(moment().subtract('day', 1), moment(), 'century' ); }).to.throwError();
       });
-      
+      it('should throw an error if pattern is not set', function () {
+        expect(function () { calculateIndices(moment().subtract('day', 1), moment(), 'hour' ); }).to.throwError();
+      });
     });
     
     describe('hourly interval', function() {
-
       beforeEach(function () {
         var date = '2014-01-15 04:30:10';
         this.start = moment(date).subtract('hours', 4);
@@ -31,16 +30,13 @@ define(function (require) {
           'logstash-2014.01.15.04'
         ]
       });
-
       it('should return a set of hourly indices', function () {
         expect(calculateIndices(this.start, this.end, this.interval, this.pattern))
                .to.eql(this.fixture);
       });
-      
     });
 
     describe('daily interval', function() {
-
       beforeEach(function () {
         var date = '2014-01-15 04:30:10';
         this.start = moment(date).subtract('days', 4);
@@ -54,16 +50,13 @@ define(function (require) {
           'logstash-2014.01.15'
         ]
       });
-
       it('should return a set of daily indices', function () {
         expect(calculateIndices(this.start, this.end, this.interval, this.pattern))
                .to.eql(this.fixture);
       });
-      
     });
 
     describe('weekly interval', function() {
-
       beforeEach(function () {
         var date = '2014-01-15 04:30:10';
         this.start = moment(date).subtract('week', 4);
@@ -77,16 +70,13 @@ define(function (require) {
           'logstash-2014.01.15'
         ]
       });
-
       it('should return a set of daily indices', function () {
         expect(calculateIndices(this.start, this.end, this.interval, this.pattern))
                .to.eql(this.fixture);
       });
-      
     });
 
     describe('yearly interval', function() {
-
       beforeEach(function () {
         var date = '2014-01-15 04:30:10';
         this.start = moment(date).subtract('years', 4);
@@ -100,15 +90,12 @@ define(function (require) {
           'logstash-2014.01.15'
         ]
       });
-
       it('should return a set of yearly indices', function () {
         expect(calculateIndices(this.start, this.end, this.interval, this.pattern))
                .to.eql(this.fixture);
       });
-      
     });
 
-
   });
 
 });