Cover the behavior RepositoryArchiveCleanUpService with tests

spec/services/repository_archive_clean_up_service_spec.rb

@@ -2,14 +2,17 @@ require 'spec_helper'
 
 describe RepositoryArchiveCleanUpService, services: true do
   describe '#execute' do
-    let(:path) { Gitlab.config.gitlab.repository_downloads_path }
+    let(:path) { File.join(Rails.root, 'tmp/tests/shared/cache/archive') }
 
     subject(:service) { described_class.new }
 
+    before do
+      allow(Gitlab.config.gitlab).to receive(:repository_downloads_path).and_return(path)
+    end
+
     context 'when the downloads directory does not exist' do
       it 'does not remove any archives' do
         expect(File).to receive(:directory?).with(path).and_return(false)
-
         expect(service).not_to receive(:clean_up_old_archives)
         expect(service).not_to receive(:clean_up_empty_directories)
 
@@ -18,13 +21,92 @@ describe RepositoryArchiveCleanUpService, services: true do
     end
 
     context 'when the downloads directory exists' do
-      it 'removes old archives' do
-        expect(File).to receive(:directory?).with(path).and_return(true)
+      before do
+        FileUtils.mkdir_p(path)
+      end
+
+      after do
+        FileUtils.rm_rf(path)
+      end
+
+      context 'when archives older than 2 hours exists' do
+        before do
+          allow_any_instance_of(File).to receive(:mtime).and_return(2.hours.ago)
+        end
+
+        it 'removes old files that matches valid archive extensions' do
+          dirname = File.join(path, 'sample.git')
+          files = create_temporary_files(dirname, %w[tar tar.bz2 tar.gz zip])
+
+          service.execute
+
+          files.each { |file| expect(File.exist?(file)).to eq false }
+          expect(File.directory?(dirname)).to eq false
+        end
+
+        it 'keeps old files that does not matches valid archive extensions' do
+          dirname = File.join(path, 'sample.git')
+          files = create_temporary_files(dirname, %w[conf rb])
+
+          service.execute
+
+          files.each { |file| expect(File.exist?(file)).to eq true }
+          expect(File.directory?(dirname)).to eq true
+        end
+
+        it 'keeps old files inside invalid directories' do
+          dirname = File.join(path, 'john_doe/sample.git')
+          files = create_temporary_files(dirname, %w[conf rb tar tar.gz])
+
+          service.execute
 
-        expect(service).to receive(:clean_up_old_archives)
-        expect(service).to receive(:clean_up_empty_directories)
+          files.each { |file| expect(File.exist?(file)).to eq true }
+          expect(File.directory?(dirname)).to eq true
+        end
+      end
+
+      context 'when archives older than 2 hours does not exist' do
+        before do
+          allow_any_instance_of(File).to receive(:mtime).and_return(1.hour.ago)
+        end
+
+        it 'keeps files that matches valid archive extensions' do
+          dirname = File.join(path, 'sample.git')
+          files = create_temporary_files(dirname, %w[tar tar.bz2 tar.gz zip])
 
           service.execute
+
+          files.each { |file| expect(File.exist?(file)).to eq true }
+          expect(File.directory?(dirname)).to eq true
+        end
+
+        it 'keeps files that does not matches valid archive extensions' do
+          dirname = File.join(path, 'sample.git')
+          files = create_temporary_files(dirname, %w[conf rb])
+
+          service.execute
+
+          files.each { |file| expect(File.exist?(file)).to eq true }
+          expect(File.directory?(dirname)).to eq true
+        end
+
+        it 'keeps files inside invalid directories' do
+          dirname = File.join(path, 'john_doe/sample.git')
+          files = create_temporary_files(dirname, %w[conf rb tar tar.gz])
+
+          service.execute
+
+          files.each { |file| expect(File.exist?(file)).to eq true }
+          expect(File.directory?(dirname)).to eq true
+        end
+      end
+
+      def create_temporary_files(dirname, extensions)
+        FileUtils.mkdir_p(dirname)
+
+        extensions.flat_map do |extension|
+          FileUtils.touch(File.join(dirname, "sample.#{extension}"))
+        end
       end
     end
   end