Add Tests for GET/HEAD queue

This patch adds tests for the new API endpoint for GET/HEAD queue.

Change-Id: Ife61b838ccc518f11e443a4daeddec650c956d6b
Tests: blueprint queue-get-and-head

marconi/tests/system/common/http.py

@@ -34,6 +34,23 @@ def get(url, header=''):
     return response
 
 
+def head(url, header=''):
+    """Does  http HEAD."""
+    if header:
+        header = json.loads(header)
+    try:
+        response = requests.head(url, headers=header)
+    except requests.ConnectionError as detail:
+        print('ConnectionError: Exception in http.head {}'.format(detail))
+    except requests.HTTPError as detail:
+        print('HTTPError: Exception in http.head {}'.format(detail))
+    except requests.Timeout as detail:
+        print('Timeout: Exception in http.head {}'.format(detail))
+    except requests.TooManyRedirects as detail:
+        print('TooManyRedirects: Exception in http.head {}'.format(detail))
+    return response
+
+
 def post(url, header='', body=''):
     """Does  http POST."""
     if header:

marconi/tests/system/queue/test_queue.py

@@ -339,6 +339,31 @@ class TestQueue(functionlib.TestUtils):
 
     test_023_check_health.tags = ['positive']
 
+    def test_024_check_queue_exists(self):
+        """Checks if queue exists."""
+        url = self.cfg.base_url + '/queues/qtestqueue'
+        http.put(url, self.header)
+
+        result = http.get(url, self.header)
+        self.assertEqual(result.status_code, 204)
+
+        result = http.head(url, self.header)
+        self.assertEqual(result.status_code, 204)
+
+    test_024_check_queue_exists.tags = ['positive']
+
+    def test_025_check_queue_exists(self):
+        """Checks non-existing queue."""
+        url = self.cfg.base_url + '/queues/nonexistingqueue'
+
+        result = http.get(url, self.header)
+        self.assertEqual(result.status_code, 404)
+
+        result = http.head(url, self.header)
+        self.assertEqual(result.status_code, 404)
+
+    test_025_check_queue_exists.tags = ['negative']
+
     def test_999_delete_queue(self):
         """Delete Queue.