more topic post tests

tests/topics.js

@@ -52,12 +52,33 @@ describe('Topic\'s', function() {
 			});
 		});
 
-		it('should fail to create new topic with wrong parameters', function(done) {
+		it('should fail to create new topic with invalid user id', function(done) {
 			topics.post({uid: null, title: topic.title, content: topic.content, cid: topic.categoryId}, function(err, result) {
 				assert.equal(err.message, '[[error:no-privileges]]');
 				done();
 			});
 		});
+
+		it('should fail to create new topic with empty title', function(done) {
+			topics.post({uid: topic.userId, title: '', content: topic.content, cid: topic.categoryId}, function(err, result) {
+				assert.equal(err);
+				done();
+			});
+		});
+
+		it('should fail to create new topic with empty content', function(done) {
+			topics.post({uid: topic.userId, title: topic.title, content: '', cid: topic.categoryId}, function(err, result) {
+				assert.equal(err);
+				done();
+			});
+		});
+
+		it('should fail to create new topic with non-existant category id', function(done) {
+			topics.post({uid: topic.userId, title: topic.title, content: topic.content, cid: 99}, function(err, result) {
+				assert.equal(err,message, '[[error:no-category]]');
+				done();
+			});
+		});
 	});
 
 	describe('Get methods', function() {