require 'rails_helper' RSpec.describe StreamEntriesHelper, type: :helper do describe '#display_name' do it 'uses the display name when it exists' do account = Account.new(display_name: "Display", username: "Username") expect(helper.display_name(account)).to eq "Display" end it 'uses the username when display name is nil' do account = Account.new(display_name: nil, username: "Username") expect(helper.display_name(account)).to eq "Username" end end end