DEV: raise plugin specific errors on failure

plugin.rb

@@ -74,6 +74,7 @@ after_initialize do
     ../lib/custom_wizard/api/endpoint.rb
     ../lib/custom_wizard/api/log_entry.rb
     ../lib/custom_wizard/liquid_extensions/first_non_empty.rb
+    ../lib/custom_wizard/exceptions/exceptions.rb
     ../serializers/custom_wizard/api/authorization_serializer.rb
     ../serializers/custom_wizard/api/basic_endpoint_serializer.rb
     ../serializers/custom_wizard/api/endpoint_serializer.rb
@@ -97,7 +98,7 @@ after_initialize do
   end
 
   add_to_class(::Sprockets::DirectiveProcessor, :process_require_tree_discourse_directive) do |path = "."|
-    raise ArgumentError, "path cannot be empty" if path == "."
+    raise CustomWizard::SprocketsEmptyPath, "path cannot be empty" if path == "."
 
     discourse_asset_path = "#{Rails.root}/app/assets/javascripts/"
     path = File.expand_path(path, discourse_asset_path)
@@ -106,7 +107,7 @@ after_initialize do
     if stat && stat.directory?
       require_paths(*@environment.stat_sorted_tree_with_dependencies(path))
     else
-      raise ArgumentError, "#{path} not found in discourse core"
+      raise CustomWizard::SprocketsFileNotFound, "#{path} not found in discourse core"
     end
   end
 

spec/extensions/sprockets_directive_spec.rb

@@ -46,10 +46,10 @@ describe "Sprockets: require_tree_discourse directive" do
   end
 
   it "throws ArgumentError if path is empty" do
-    expect { @env.find_asset("require_tree_discourse_empty.js") }.to raise_error(ArgumentError).with_message("path cannot be empty")
+    expect { @env.find_asset("require_tree_discourse_empty.js") }.to raise_error(CustomWizard::SprocketsEmptyPath).with_message("path cannot be empty")
   end
 
   it "throws ArgumentError if path is non non-existent" do
-    expect { @env.find_asset("require_tree_discourse_non_existant.js") }.to raise_error(ArgumentError)
+    expect { @env.find_asset("require_tree_discourse_non_existant.js") }.to raise_error(CustomWizard::SprocketsFileNotFound)
   end
 end