suggest topic test

test/topics.js

@@ -979,7 +979,7 @@ describe('Topic\'s', function () {
 
 	describe('suggested topics', function () {
 		var tid1;
-		var tid2;
+		var tid3;
 		before(function (done) {
 			async.parallel({
 				topic1: function (next) {
@@ -988,10 +988,13 @@ describe('Topic\'s', function () {
 				topic2: function (next) {
 					topics.post({ uid: adminUid, tags: ['nodebb'], title: 'topic title 2', content: 'topic 2 content', cid: topic.categoryId }, next);
 				},
+				topic3: function (next) {
+					topics.post({ uid: adminUid, tags: [], title: 'topic title 3', content: 'topic 3 content', cid: topic.categoryId }, next);
+				},
 			}, function (err, results) {
 				assert.ifError(err);
 				tid1 = results.topic1.topicData.tid;
-				tid2 = results.topic2.topicData.tid;
+				tid3 = results.topic3.topicData.tid;
 				done();
 			});
 		});
@@ -1003,6 +1006,14 @@ describe('Topic\'s', function () {
 				done();
 			});
 		});
+
+		it('should return suggested topics', function (done) {
+			topics.getSuggestedTopics(tid3, adminUid, 0, 2, function (err, topics) {
+				assert.ifError(err);
+				assert(Array.isArray(topics));
+				done();
+			});
+		});
 	});
 
 	describe('unread', function () {