1 files changed, 39 insertions, 0 deletions
diff --git a/spec/presenters/dev_ops_report/metric_presenter_spec.rb b/spec/presenters/dev_ops_report/metric_presenter_spec.rb
new file mode 100644
index 00000000000..306b5592c33
--- /dev/null
+++ b/spec/presenters/dev_ops_report/metric_presenter_spec.rb
@@ -0,0 +1,39 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe DevOpsReport::MetricPresenter do
+  subject { described_class.new(metric) }
+
+  let(:metric) { build(:dev_ops_report_metric) }
+
+  describe '#cards' do
+    it 'includes instance score, leader score and percentage score' do
+      issues_card = subject.cards.first
+
+      expect(issues_card.instance_score).to eq(1.234)
+      expect(issues_card.leader_score).to eq(9.256)
+      expect(issues_card.percentage_score).to eq(13.331)
+    end
+  end
+
+  describe '#idea_to_production_steps' do
+    it 'returns percentage score when it depends on a single feature' do
+      code_step = subject.idea_to_production_steps.fourth
+
+      expect(code_step.percentage_score).to be_within(0.1).of(50.0)
+    end
+
+    it 'returns percentage score when it depends on two features' do
+      issue_step = subject.idea_to_production_steps.second
+
+      expect(issue_step.percentage_score).to be_within(0.1).of(53.0)
+    end
+  end
+
+  describe '#average_percentage_score' do
+    it 'calculates an average value across all the features' do
+      expect(subject.average_percentage_score).to be_within(0.1).of(55.8)
+    end
+  end
+end