support global exceptions handlings for pyramid + test

hapic/ext/pyramid/context.py

         exception_class: typing.Type[Exception],
         http_code: int,
     ) -> None:
-        raise NotImplementedError('TODO')
+
+        def factory_view_func(exception_class, http_code):
+            def view_func(exc, request):
+                # TODO BS 2018-05-04: How to be attentive to hierarchy ?
+                error_builder = self.get_default_error_builder()
+                error_body = error_builder.build_from_exception(exc)
+                return self.get_response(
+                    json.dumps(error_body),
+                    http_code
+                )
+            return view_func
+
+        self.configurator.add_view(
+            view=factory_view_func(
+                exception_class,
+                http_code,
+            ),
+            context=exception_class,
+        )
+

tests/func/test_exception_handling.py

 # coding: utf-8
 import bottle
+from pyramid.config import Configurator
 from webtest import TestApp
 
 from hapic import Hapic
+from hapic.ext.pyramid import PyramidContext
 from tests.base import Base
 from tests.base import MyContext
 
         response = test_app.get('/my-view', status='*')
 
         assert 400 == response.status_code
+
+    def test_func__catch_one_exception__ok__pyramid(self):
+        # TODO - G.M - 17-05-2018 - Move/refactor this test
+        # in order to have here only framework agnostic test
+        # and framework_specific
+        # test somewhere else.
+        hapic = Hapic()
+        configurator = Configurator(autocommit=True)
+        context = PyramidContext(configurator)
+        hapic.set_context(context)
+
+        def my_view(context, request):
+            raise ZeroDivisionError('An exception message')
+
+        configurator.add_route('my_view','/my-view', request_method='GET')
+        configurator.add_view(my_view, route_name='my_view', renderer='json')
+
+        context.handle_exception(ZeroDivisionError, http_code=400)
+
+        app = configurator.make_wsgi_app()
+        test_app = TestApp(app)
+        response = test_app.get('/my-view', status='*')
+
+        assert 400 == response.status_code