Tests: added Python test with iterator context.

test/python/ctx_iter_atexit/wsgi.py

@@ -0,0 +1,23 @@
+import atexit
+
+class application:
+    def __init__(self, environ, start_response):
+        self.environ = environ
+        self.start = start_response
+
+    def __iter__(self):
+        atexit.register(self._atexit)
+
+        content_length = int(self.environ.get('CONTENT_LENGTH', 0))
+        body = bytes(self.environ['wsgi.input'].read(content_length))
+
+        self.start('200', [
+            ('Content-Type', self.environ.get('CONTENT_TYPE')),
+            ('Content-Length', str(len(body)))
+        ])
+        yield body
+
+    def _atexit(self):
+        self.start('200', [
+            ('Content-Length', '0')
+        ])

test/test_python_application.py

@@ -60,5 +60,28 @@ class TestUnitPythonApplication(unit.TestUnitApplicationPython):
         self.assertNotIn('Transfer-Encoding', self.get()['headers'],
             '204 header transfer encoding')
 
+    def test_python_application_ctx_iter_atexit(self):
+        self.skip_alerts.append(r'sendmsg.+failed')
+        self.load('ctx_iter_atexit')
+
+        resp = self.post(headers={
+            'Connection': 'close',
+            'Content-Type': 'text/html',
+            'Host': 'localhost'
+        }, body='0123456789')
+
+        self.assertEqual(resp['status'], 200, 'ctx iter status')
+        self.assertEqual(resp['body'], '0123456789', 'ctx iter body')
+
+        self.conf({
+            "listeners": {},
+            "applications": {}
+        })
+
+        self.stop()
+
+        self.assertIsNotNone(self.search_in_log(r'RuntimeError'),
+            'ctx iter atexit')
+
 if __name__ == '__main__':
     unittest.main()