doc generation: use controller doc string

hapic/decorator.py

         self.wrapped = wrapped
         self.token = token
 
+    def get_doc_string(self) -> str:
+        if self.wrapper.__doc__:
+            return self.wrapper.__doc__.strip()
+
+        if self.wrapped.__doc__:
+            return self.wrapper.__doc__.strip()
+
+        return ''
+
 
 class ControllerWrapper(object):
     def before_wrapped_func(

hapic/doc.py

                 controller.description,
             )
 
+            # TODO BS 20171114: TMP code waiting refact of doc
+            doc_string = controller.reference.get_doc_string()
+            if doc_string:
+                for method in operations.keys():
+                    operations[method]['description'] = doc_string
+
             path = Path(path=swagger_path, operations=operations)
 
             if swagger_path in paths:

tests/func/test_doc.py

                    'in': 'formData',
                    'type': 'file',
                } in doc['paths']['/upload']['post']['parameters']
+
+    def test_func__docstring__ok__simple_case(self):
+        hapic = Hapic()
+        hapic.set_context(MyContext())
+        app = bottle.Bottle()
+
+        # TODO BS 20171113: Make this test non-bottle
+        @hapic.with_api_doc()
+        def my_controller(hapic_data=None):
+            """
+            Hello doc
+            """
+            assert hapic_data
+            assert hapic_data.files
+
+        app.route('/upload', method='POST', callback=my_controller)
+        doc = hapic.generate_doc(app)
+
+        assert doc.get('paths')
+        assert '/upload' in doc['paths']
+        assert 'post' in doc['paths']['/upload']
+        assert 'description' in doc['paths']['/upload']['post']
+        assert 'Hello doc' == doc['paths']['/upload']['post']['description']