handle background scenario failures [fix #22]

Author: e2

lib/guard/cucumber/notification_formatter.rb

@@ -43,6 +43,10 @@ def initialize(step_mother, _path_or_io, options)
         @step_mother = step_mother
       end
 
+      def before_background(background)
+        @feature_name = background.feature.name
+      end
+
       # Notification after all features have completed.
       #
       # @param [Array[Cucumber::Ast::Feature]] features the ran features

spec/guard/cucumber/notification_formatter_spec.rb

@@ -23,4 +23,24 @@
       subject.after_features(nil)
     end
   end
+
+  describe "#step_name" do
+    context "when failure is in a background step" do
+      let(:step_match) { instance_double(Cucumber::StepMatch) }
+      let(:feature) { instance_double(Cucumber::Ast::Feature, name: "feature1") }
+      let(:background) { instance_double(Cucumber::Ast::Background, feature: feature) }
+
+      before do
+        subject.before_background(background)
+        allow(step_match).to receive(:format_args) do |block|
+          block.call "step_name1"
+        end
+      end
+
+      it "notifies with a valid feature name" do
+        expect(Guard::Compat::UI).to receive(:notify).with("*step_name1*", hash_including(title: "feature1"))
+        subject.step_name(nil, step_match, :failed, nil, nil, nil)
+      end
+    end
+  end
 end