Custom Precondition for Granite

error.log

1) BA::SkillName::Update preconditions when in merge flow when merge is broken is expected not to satisfy preconditions
     Failure/Error: it { is_expected.not_to satisfy_preconditions.with_message(broken_merge_msg) }
       #<BA::SkillName::Update skill_name: #<ReferencesOne #<SkillName id: 1001, created_at: nil, editor_c...>, skills: #<EmbedsMany []>, remaining_skills: #<EmbedsMany [#<BA::SkillName::Update::EmbededSkill vertica...]>, skill_name_id: 1001, name: "Skill 1", skill_page_slug: "corrin-blanda-1", selected_vertical: nil, new_name: "Skill 2", after_merge_confirmation: false> does not implement: broken_merge?

merge_preconditions.rb

module BA
  module SkillName
    class Update
      class MergePreconditions < Granite::Action::Precondition
        description 'Must be mergeable'

        def call(**)
          decline_with(:merge_into_unchecked_skill) and return unless new_skill_name.checked?

          if broken_merge?
            decline_with(:merging_with_descendant) and return if merging_with_descendant?

            decline_with(:non_obsolete_bonus_program_reference) and return if merging_from_bonus_program_in_use?

            decline_with(:broken_merge)
          end
        end

        def broken_merge?
          skill_mergers_hash.values.any?(&:invalid?)
        end

        # Checks if there is any embedded skill that would be merged with it's own descendant
        def merging_with_descendant?
          skill_mergers_hash.values.any? do |skill_merger|
            skill_merger.failed_preconditions.include?(:merging_with_descendant)
          end
        end

        def merging_from_bonus_program_in_use?
          skill_mergers_hash.values.any? do |skill_merger|
            skill_merger.failed_preconditions.include?(:non_obsolete_bonus_program_reference)
          end
        end
      end
    end
  end
end