Merge pull request #3913 from bgeuken/tests_for_statistics_calculations

[ci] Add rspec tests for StatisticsCalculations

src/api/spec/mixins/statistics_calculations_spec.rb

@@ -0,0 +1,105 @@
+require "webmock/rspec"
+require 'rails_helper'
+
+RSpec.describe StatisticsCalculations do
+  describe 'get_latest_updated' do
+    let(:object)    { Object.new.extend(StatisticsCalculations) }
+    let(:package_1) { create(:package) }
+    let(:package_2) { create(:package, name: 'my_package') }
+    let(:package_3) { create(:package) }
+    let(:project_without_package) { create(:project) }
+
+    before do
+      # Create all objects and their relations with the correct timestamps
+      Timecop.freeze(30.seconds.ago) { package_1 }
+      Timecop.freeze( 1.minute.ago)  { package_2 }
+      Timecop.freeze( 2.minutes.ago) { package_3 }
+      Timecop.freeze( 1.minute.ago)  { project_without_package }
+    end
+
+    def project_result_for(project)
+      [project.updated_at, project.name, :project]
+    end
+
+    def package_result_for(package)
+      [package.updated_at, :package, package.name, package.project.name]
+    end
+
+    context 'when called with no parameters' do
+      subject { object.get_latest_updated }
+
+      it 'returns all projects available' do
+        expect(subject[1]).to match_array(project_result_for(package_1.project))
+        expect(subject[2]).to match_array(project_result_for(project_without_package))
+        expect(subject[4]).to match_array(project_result_for(package_2.project))
+        expect(subject[6]).to match_array(project_result_for(package_3.project))
+      end
+
+      it 'returns all packages available' do
+        expect(subject[0]).to match_array(package_result_for(package_1))
+        expect(subject[3]).to match_array(package_result_for(package_2))
+        expect(subject[5]).to match_array(package_result_for(package_3))
+      end
+    end
+
+    context 'when limit n is given' do
+      subject { object.get_latest_updated(3) }
+
+      it 'returns the newest n packages and projects' do
+        expect(subject[0]).to match_array(package_result_for(package_1))
+        expect(subject[1]).to match_array(project_result_for(package_1.project))
+        expect(subject[2]).to match_array(project_result_for(project_without_package))
+      end
+    end
+
+    context 'when timelimit is given' do
+      subject { object.get_latest_updated(10, 65.seconds.ago) }
+
+      it { expect(subject.length).to eq(5) }
+
+      it 'returns all packages and projects updated after the timelimit' do
+        expect(subject[0]).to match_array(package_result_for(package_1))
+        expect(subject[1]).to match_array(project_result_for(package_1.project))
+        expect(subject[2]).to match_array(project_result_for(project_without_package))
+        expect(subject[3]).to match_array(package_result_for(package_2))
+        expect(subject[4]).to match_array(project_result_for(package_2.project))
+      end
+    end
+
+    context 'when project filter is given' do
+      subject { object.get_latest_updated(10, 125.seconds.ago, 'my_proj') }
+
+      before do
+        # We need to be able to identify the project
+        package_3.project.update_attributes!(name: 'my_project')
+      end
+
+      it { expect(subject.length).to eq(2) }
+
+      it 'returns all packages that have a matching project' do
+        expect(subject[1]).to match_array(package_result_for(package_3))
+      end
+
+      it 'returns projects that match the filter' do
+        expect(subject[0]).to match_array(project_result_for(package_3.project))
+      end
+    end
+
+    context 'when package filter is given' do
+      subject { object.get_latest_updated(10, 5.minutes.ago, '.*', 'my_pack') }
+
+      it { expect(subject.length).to eq(5) }
+
+      it 'returns only packages that match the package filter' do
+        expect(subject[2]).to match_array(package_result_for(package_2))
+      end
+
+      it 'returns all projects' do
+        expect(subject[0]).to match_array(project_result_for(package_1.project))
+        expect(subject[1]).to match_array(project_result_for(project_without_package))
+        expect(subject[3]).to match_array(project_result_for(package_2.project))
+        expect(subject[4]).to match_array(project_result_for(package_3.project))
+      end
+    end
+  end
+end