teamcapybara/capybara · error · ArgumentError

Unknown filter set (:#{set_name})

Error message

Unknown filter set (:#{set_name})

What it means

Error "Unknown filter set (:#{set_name})" thrown in teamcapybara/capybara.

Source

Thrown at lib/capybara/selector/filter_set.rb:75

        filter_selector = filters.nil? ? ->(*) { true } : ->(filter_name, _) { filters.include? filter_name }

        self.class[name].tap do |f_set|
          expression_filters.merge!(f_set.expression_filters.select(&filter_selector))
          node_filters.merge!(f_set.node_filters.select(&filter_selector))
          f_set.undeclared_descriptions.each { |desc| describe(&desc) }
          f_set.expression_filter_descriptions.each { |desc| describe(:expression_filters, &desc) }
          f_set.node_filter_descriptions.each { |desc| describe(:node_filters, &desc) }
        end
        self
      end

      class << self
        def all
          @filter_sets ||= {} # rubocop:disable Naming/MemoizedInstanceVariableName
        end

        def [](name)
          all.fetch(name.to_sym) { |set_name| raise ArgumentError, "Unknown filter set (:#{set_name})" }
        end

        def add(name, &block)
          all[name.to_sym] = FilterSet.new(name.to_sym, &block)
        end

        def remove(name)
          all.delete(name.to_sym)
        end
      end

    protected

      def undeclared_descriptions
        @descriptions[:undeclared]
      end

      def node_filter_descriptions

View on GitHub (pinned to 15b5fdb76e)

When it happens

Trigger: Thrown at lib/capybara/selector/filter_set.rb:75 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of teamcapybara/capybara@15b5fdb76e (2026-08-21). Data as JSON: /api/errors/67754d70cbde27eb. Report an issue: GitHub.