1 files changed, 97 insertions, 0 deletions
diff --git a/spec/lib/gitlab/ci/reports/reports_comparer_spec.rb b/spec/lib/gitlab/ci/reports/reports_comparer_spec.rb
new file mode 100644
index 00000000000..1e5e4766583
--- /dev/null
+++ b/spec/lib/gitlab/ci/reports/reports_comparer_spec.rb
@@ -0,0 +1,97 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::Ci::Reports::ReportsComparer do
+  let(:comparer) { described_class.new(base_report, head_report) }
+  let(:base_report) { Gitlab::Ci::Reports::CodequalityReports.new }
+  let(:head_report) { Gitlab::Ci::Reports::CodequalityReports.new }
+
+  describe '#initialize' do
+    context 'sets getter for the report comparer' do
+      it 'return base report' do
+        expect(comparer.base_report).to be_an_instance_of(Gitlab::Ci::Reports::CodequalityReports)
+      end
+
+      it 'return head report' do
+        expect(comparer.head_report).to be_an_instance_of(Gitlab::Ci::Reports::CodequalityReports)
+      end
+    end
+  end
+
+  describe '#status' do
+    subject(:status) { comparer.status }
+
+    it 'returns not implemented error' do
+      expect { status }.to raise_error(NotImplementedError)
+    end
+
+    context 'when success? is true' do
+      before do
+        allow(comparer).to receive(:success?).and_return(true)
+      end
+
+      it 'returns status success' do
+        expect(status).to eq('success')
+      end
+    end
+
+    context 'when success? is false' do
+      before do
+        allow(comparer).to receive(:success?).and_return(false)
+      end
+
+      it 'returns status failed' do
+        expect(status).to eq('failed')
+      end
+    end
+  end
+
+  describe '#success?' do
+    subject(:success?) { comparer.success? }
+
+    it 'returns not implemented error' do
+      expect { success? }.to raise_error(NotImplementedError)
+    end
+  end
+
+  describe '#existing_errors' do
+    subject(:existing_errors) { comparer.existing_errors }
+
+    it 'returns not implemented error' do
+      expect { existing_errors }.to raise_error(NotImplementedError)
+    end
+  end
+
+  describe '#resolved_errors' do
+    subject(:resolved_errors) { comparer.resolved_errors }
+
+    it 'returns not implemented error' do
+      expect { resolved_errors }.to raise_error(NotImplementedError)
+    end
+  end
+
+  describe '#errors_count' do
+    subject(:errors_count) { comparer.errors_count }
+
+    it 'returns not implemented error' do
+      expect { errors_count }.to raise_error(NotImplementedError)
+    end
+  end
+
+  describe '#resolved_count' do
+    subject(:resolved_count) { comparer.resolved_count }
+
+    it 'returns not implemented error' do
+      expect { resolved_count }.to raise_error(NotImplementedError)
+    end
+  end
+
+  describe '#total_count' do
+    subject(:total_count) { comparer.total_count }
+
+    it 'returns not implemented error' do
+      expect { total_count }.to raise_error(NotImplementedError)
+    end
+  end
+end