diff --git a/tests/test_pagure_private_repo.py b/tests/test_pagure_private_repo.py
index 9b44725..ee71781 100644
--- a/tests/test_pagure_private_repo.py
+++ b/tests/test_pagure_private_repo.py
@@ -788,6 +788,7 @@ class PagurePrivateRepotest(tests.Modeltests):
         """ Test api endpoints in api/fork"""
 
         send_email.return_value = True
+
         # Add private repo
         item = pagure.lib.model.Project(
             user_id=1,  # pingou
@@ -799,23 +800,10 @@ class PagurePrivateRepotest(tests.Modeltests):
         self.session.add(item)
         self.session.commit()
 
-        # Create a token for pingou for this project
-        item = pagure.lib.model.Token(
-            id='foobar_token',
-            user_id=1,
-            project_id=1,
-            expiration=datetime.datetime.utcnow() + datetime.timedelta(
-                days=30)
-        )
-        self.session.add(item)
-        self.session.commit()
-        item = pagure.lib.model.TokenAcl(
-            token_id='foobar_token',
-            acl_id=1,
-        )
-        self.session.add(item)
-        self.session.commit()
+        tests.create_tokens(self.session)
+        tests.create_tokens_acl(self.session)
 
+        headers = {'Authorization': 'token aaabbbcccddd'}
         # Create a pull-request
         repo = pagure.lib.get_project(self.session, 'test4')
         forked_repo = pagure.lib.get_project(self.session, 'test4')
@@ -832,9 +820,15 @@ class PagurePrivateRepotest(tests.Modeltests):
         self.session.commit()
         self.assertEqual(req.id, 1)
         self.assertEqual(req.title, 'test pull-request')
+
+        # Check list of PR
         output = self.app.get('/api/0/test4/pull-requests')
         self.assertEqual(output.status_code, 404)
 
+        # Check single PR
+        output = self.app.get('/api/0/test/pull-request/1')
+        self.assertEqual(output.status_code, 404)
+
         user = tests.FakeUser(username='pingou')
         with tests.user_set(pagure.APP, user):
             # List pull-requests
@@ -919,7 +913,7 @@ class PagurePrivateRepotest(tests.Modeltests):
             self.assertDictEqual(data, data2)
 
 
-            # Valid issue
+            # For single PR
             output = self.app.get('/api/0/test4/pull-request/1')
             self.assertEqual(output.status_code, 200)
             data = json.loads(output.data)
@@ -992,6 +986,92 @@ class PagurePrivateRepotest(tests.Modeltests):
             data2['updated_on'] = '1431414800'
             self.assertDictEqual(data, data2)
 
+
+    @patch('pagure.lib.notify.send_email')
+    def test_api_pr_private_repo_add_comment(self, mockemail):
+        """ Test the api_pull_request_add_comment method of the flask api. """
+        mockemail.return_value = True
+        pagure.APP.config['REQUESTS_FOLDER'] = None
+
+        # Add private repo
+        item = pagure.lib.model.Project(
+            user_id=1,  # pingou
+            name='test4',
+            description='test project description',
+            hook_token='aaabbbeeeceee',
+            private=True,
+        )
+        self.session.add(item)
+        self.session.commit()
+        tests.create_tokens(self.session)
+        tests.create_tokens_acl(self.session)
+
+        headers = {'Authorization': 'token aaabbbcccddd'}
+        # Create a pull-request
+        repo = pagure.lib.get_project(self.session, 'test4')
+        forked_repo = pagure.lib.get_project(self.session, 'test4')
+        req = pagure.lib.new_pull_request(
+            session=self.session,
+            repo_from=forked_repo,
+            branch_from='master',
+            repo_to=repo,
+            branch_to='master',
+            title='test pull-request',
+            user='pingou',
+            requestfolder=None,
+        )
+        self.session.commit()
+        self.assertEqual(req.id, 1)
+        self.assertEqual(req.title, 'test pull-request')
+
+        # Check comments before
+        request = pagure.lib.search_pull_requests(
+            self.session, project_id=1, requestid=1)
+        self.assertEqual(len(request.comments), 0)
+
+        data = {
+            'title': 'test issue',
+        }
+
+        # Incomplete request
+        output = self.app.post(
+            '/api/0/test4/pull-request/1/comment', data=data, headers=headers)
+        self.assertEqual(output.status_code, 400)
+        data = json.loads(output.data)
+        self.assertDictEqual(
+            data,
+            {
+              "error": "Invalid or incomplete input submited",
+              "error_code": "EINVALIDREQ",
+            }
+        )
+
+        # No change
+        request = pagure.lib.search_pull_requests(
+            self.session, project_id=1, requestid=1)
+        self.assertEqual(len(request.comments), 0)
+
+        data = {
+            'comment': 'This is a very interesting question',
+        }
+
+        # Valid request
+        output = self.app.post(
+            '/api/0/test4/pull-request/1/comment', data=data, headers=headers)
+        self.assertEqual(output.status_code, 200)
+        data = json.loads(output.data)
+        self.assertDictEqual(
+            data,
+            {'message': 'Comment added'}
+        )
+
+        # One comment added
+        request = pagure.lib.search_pull_requests(
+            self.session, project_id=1, requestid=1)
+        self.assertEqual(len(request.comments), 1)
+
+
+
 if __name__ == '__main__':
     SUITE = unittest.TestLoader().loadTestsFromTestCase(PagurePrivateRepotest)
     unittest.TextTestRunner(verbosity=2).run(SUITE)