require 'spec_helper' describe Fasterer::Analyzer do let(:test_file_path) { RSpec.root.join('support', 'analyzer', '10_map_flatten_vs_flat_map.rb') } it 'should detect a map{}.flatten(1) ' do analyzer = Fasterer::Analyzer.new(test_file_path) analyzer.scan expect(analyzer.errors[:map_flatten_vs_flat_map].count).to eq(2) end end