def METHOD_NAME(app):
    bp = Blueprint("test_text", url_prefix="/test1")
    class DummyView(HTTPMethodView):
        def get(self, request):
            return text("I am get method")
    bp.add_route(DummyView.as_view(), "/")
    app.blueprint(bp)
    request, response = app.test_client.get("/test1/")
    assert response.text == "I am get method"