feat: raise Errors::UnknownView for missing render view

lib/blueprinter/errors.rb

@@ -3,5 +3,6 @@
 module Blueprinter
   module Errors
     autoload :InvalidBlueprint, 'blueprinter/errors/invalid_blueprint'
+    autoload :UnknownView, 'blueprinter/errors/unknown_view'
   end
 end

lib/blueprinter/errors/unknown_view.rb

@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+module Blueprinter
+  module Errors
+    class UnknownView < BlueprinterError; end
+  end
+end

lib/blueprinter/rendering.rb

@@ -2,6 +2,7 @@
 
 require 'blueprinter/errors/invalid_root'
 require 'blueprinter/errors/meta_requires_root'
+require 'blueprinter/errors/unknown_view'
 require 'blueprinter/deprecation'
 
 module Blueprinter
@@ -91,7 +92,7 @@ def render_as_json(object, options = {})
     #   additional key value pairs will be exposed during serialization.
     # @return [Hash]
     def hashify(object, view_name:, local_options:)
-      raise BlueprinterError, "View '#{view_name}' is not defined" unless view_collection.view?(view_name)
+      raise Errors::UnknownView, "View '#{view_name}' is not defined" unless view_collection.view?(view_name)
 
       object = Blueprinter.configuration.extensions.pre_render(object, self, view_name, local_options)
       prepare_data(object, view_name, local_options)

spec/integrations/base_spec.rb

@@ -53,6 +53,16 @@
             to eq(blueprint.render(object_with_attributes))
         end
       end
+      context 'and the view is not defined' do
+        it 'raises Errors::UnknownView' do
+          expect { blueprint.render(object_with_attributes, view: :missing) }.
+            to raise_error(Blueprinter::Errors::UnknownView, "View 'missing' is not defined")
+        end
+        it 'remains rescuable as BlueprinterError' do
+          expect { blueprint.render(object_with_attributes, view: :missing) }.
+            to raise_error(Blueprinter::BlueprinterError)
+        end
+      end
     end
 
     context 'when using Symbol#to_proc syntax' do