require 'spec_helper' describe BacktraceLineNormalizer do subject { described_class.new(raw_line).call } describe "sanitize file" do let(:raw_line) { { 'number' => rand(999), 'file' => nil, 'method' => ActiveSupport.methods.shuffle.first.to_s } } it "should replace nil file with [unknown source]" do subject['file'].should == "[unknown source]" end end end