Use Service thread group for WSGI request handling

- Reuse the pool from thread group in service.Service
  instead of creating a new green pool
- Add ability to control the size of the pool in service.Service
- Add a couple of tests for wsgi.Service() to test the size
  of pool a start/stop as well
- Get rid of the wait method by using tg.add_thread
- Get rid of pool in wsgi.Service
- Added explicit property for host and port

Fixes LP #1050379

Change-Id: I40507dc7887fb036ec594bb167cdaa42c278607e

1 files changed, 16 insertions, 0 deletions

diff --git a/tests/unit/test_wsgi.py b/tests/unit/test_wsgi.py
index 94f12b7..25c0dcf 100644
--- a/tests/unit/test_wsgi.py
+++ b/tests/unit/test_wsgi.py
@@ -444,3 +444,19 @@ class ServerTest(unittest.TestCase):
         finally:
             listen_patcher.stop()
             server_patcher.stop()
+
+
+class WSGIServerTest(unittest.TestCase):
+
+    def test_pool(self):
+        server = wsgi.Service()
+        self.assertTrue(server.tg)
+        self.assertTrue(server.tg.pool)
+        self.assertEqual(server.tg.pool.free(), 1000)
+
+    def test_start_random_port(self):
+        server = wsgi.Service()
+        server.start("test_random_port", 0)
+        self.assertEqual("0.0.0.0", server.host)
+        self.assertNotEqual(0, server.port)
+        server.stop()