require "rails_helper" RSpec.describe Community, type: :model do it "is valid when create proposal" do proposal = create(:proposal) expect(proposal.community).to be_valid end describe "#participants" do it "returns participants without duplicates" do proposal = create(:proposal) community = proposal.community user1 = create(:user) user2 = create(:user) topic1 = create(:topic, community: community, author: user1) create(:comment, commentable: topic1, author: user1) create(:comment, commentable: topic1, author: user2) topic2 = create(:topic, community: community, author: user2) expect(community.participants).to include(user1) expect(community.participants).to include(user2) expect(community.participants).to include(proposal.author) end end end