GIT-37: fix blueprint middleware application (#1690)

* GIT-37: fix blueprint middleware application

1. If you register a middleware via `@blueprint.middleware` then it will apply only to the routes defined by the blueprint.
2. If you register a middleware via `@blueprint_group.middleware` then it will apply to all blueprint based routes that are part of the group.
3. If you define a middleware via `@app.middleware` then it will be applied on all available routes

Fixes #37

Signed-off-by: Harsha Narayana <harsha2k4@gmail.com>

* GIT-37: add changelog

Signed-off-by: Harsha Narayana <harsha2k4@gmail.com>

tests/test_app.py

@@ -94,7 +94,7 @@ def test_app_route_raise_value_error(app):
 
 def test_app_handle_request_handler_is_none(app, monkeypatch):
     def mockreturn(*args, **kwargs):
-        return None, [], {}, ""
+        return None, [], {}, "", ""
 
     # Not sure how to make app.router.get() return None, so use mock here.
     monkeypatch.setattr(app.router, "get", mockreturn)

tests/test_blueprint_group.py

@@ -83,7 +83,7 @@ def test_bp_group_with_additional_route_params(app: Sanic):
     _, response = app.test_client.patch("/api/bp2/route/bp2", headers=header)
     assert response.text == "PATCH_bp2"
 
-    _, response = app.test_client.get("/v2/api/bp1/request_path")
+    _, response = app.test_client.put("/v2/api/bp1/request_path")
     assert response.status == 401
 
 
@@ -141,8 +141,8 @@ def test_bp_group(app: Sanic):
     _, response = app.test_client.get("/api/bp3")
     assert response.text == "BP3_OK"
 
-    assert MIDDLEWARE_INVOKE_COUNTER["response"] == 4
-    assert MIDDLEWARE_INVOKE_COUNTER["request"] == 4
+    assert MIDDLEWARE_INVOKE_COUNTER["response"] == 3
+    assert MIDDLEWARE_INVOKE_COUNTER["request"] == 2
 
 
 def test_bp_group_list_operations(app: Sanic):

tests/test_blueprints.py

@@ -268,7 +268,7 @@ def test_bp_middleware(app):
     request, response = app.test_client.get("/")
 
     assert response.status == 200
-    assert response.text == "OK"
+    assert response.text == "FAIL"
 
 
 def test_bp_exception_handler(app):