1 files changed, 87 insertions, 0 deletions
diff --git a/spec/serializers/accessibility_reports_comparer_entity_spec.rb b/spec/serializers/accessibility_reports_comparer_entity_spec.rb
new file mode 100644
index 00000000000..ed2c17de640
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+++ b/spec/serializers/accessibility_reports_comparer_entity_spec.rb
@@ -0,0 +1,87 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe AccessibilityReportsComparerEntity do
+  let(:entity) { described_class.new(comparer) }
+  let(:comparer) { Gitlab::Ci::Reports::AccessibilityReportsComparer.new(base_report, head_report) }
+  let(:base_report) { Gitlab::Ci::Reports::AccessibilityReports.new }
+  let(:head_report) { Gitlab::Ci::Reports::AccessibilityReports.new }
+  let(:url) { "https://gitlab.com" }
+  let(:single_error) do
+    [
+      {
+        code: "WCAG2AA.Principle4.Guideline4_1.4_1_2.H91.A.NoContent",
+        type: "error",
+        typeCode: 1,
+        message: "Anchor element found with a valid href attribute, but no link content has been supplied.",
+        context: "<a href=\"/\" class=\"navbar-brand animated\"><svg height=\"36\" viewBox=\"0 0 1...</a>",
+        selector: "#main-nav > div:nth-child(1) > a",
+        runner: "htmlcs",
+        runnerExtras: {}
+      }
+    ]
+  end
+  let(:different_error) do
+    [
+      {
+        code: "WCAG2AA.Principle1.Guideline1_4.1_4_3.G18.Fail",
+        type: "error",
+        typeCode: 1,
+        message: "This element has insufficient contrast at this conformance level.",
+        context: "<a href=\"/stages-devops-lifecycle/\" class=\"main-nav-link\">Product</a>",
+        selector: "#main-nav > div:nth-child(2) > ul > li:nth-child(1) > a",
+        runner: "htmlcs",
+        runnerExtras: {}
+      }
+    ]
+  end
+
+  describe '#as_json' do
+    subject { entity.as_json }
+
+    context 'when base report has error and head has a different error' do
+      before do
+        base_report.add_url(url, single_error)
+        head_report.add_url(url, different_error)
+      end
+
+      it 'contains correct compared accessibility report details', :aggregate_failures do
+        expect(subject[:status]).to eq(Gitlab::Ci::Reports::AccessibilityReportsComparer::STATUS_FAILED)
+        expect(subject[:resolved_errors].first).to include(:code, :type, :type_code, :message, :context, :selector, :runner, :runner_extras)
+        expect(subject[:new_errors].first).to include(:code, :type, :type_code, :message, :context, :selector, :runner, :runner_extras)
+        expect(subject[:existing_errors].first).to include(:code, :type, :type_code, :message, :context, :selector, :runner, :runner_extras)
+        expect(subject[:summary]).to include(total: 2, resolved: 1, errored: 1)
+      end
+    end
+
+    context 'when base report has error and head has the same error' do
+      before do
+        base_report.add_url(url, single_error)
+        head_report.add_url(url, single_error)
+      end
+
+      it 'contains correct compared accessibility report details', :aggregate_failures do
+        expect(subject[:status]).to eq(Gitlab::Ci::Reports::AccessibilityReportsComparer::STATUS_FAILED)
+        expect(subject[:new_errors]).to be_empty
+        expect(subject[:resolved_errors]).to be_empty
+        expect(subject[:existing_errors].first).to include(:code, :type, :type_code, :message, :context, :selector, :runner, :runner_extras)
+        expect(subject[:summary]).to include(total: 1, resolved: 0, errored: 1)
+      end
+    end
+
+    context 'when base report has no error and head has errors' do
+      before do
+        head_report.add_url(url, single_error)
+      end
+
+      it 'contains correct compared accessibility report details', :aggregate_failures do
+        expect(subject[:status]).to eq(Gitlab::Ci::Reports::AccessibilityReportsComparer::STATUS_FAILED)
+        expect(subject[:resolved_errors]).to be_empty
+        expect(subject[:existing_errors]).to be_empty
+        expect(subject[:new_errors].first).to include(:code, :type, :type_code, :message, :context, :selector, :runner, :runner_extras)
+        expect(subject[:summary]).to include(total: 1, resolved: 0, errored: 1)
+      end
+    end
+  end
+end