feat(ClamAV): add config to disable clamav usage

spec/services/clamav_service_spec.rb

@@ -4,25 +4,51 @@ describe ClamavService do
 
     subject { ClamavService.safe_file?(path_file) }
 
-    before do
-      client = double("ClamAV::Client", execute: [response])
-      allow(ClamAV::Client).to receive(:new).and_return(client)
-      allow(FileUtils).to receive(:chmod).with(0666, path_file).and_return(true)
+    context "when ClamAV is enabled" do
+      before do
+        @saved_clamav = Rails.configuration.x.clamav.enabled
+        Rails.configuration.x.clamav.enabled = true
+
+        client = double("ClamAV::Client", execute: [response])
+        allow(ClamAV::Client).to receive(:new).and_return(client)
+        allow(FileUtils).to receive(:chmod).with(0666, path_file).and_return(true)
+      end
+
+      after do
+        Rails.configuration.x.clamav.enabled = @saved_clamav
+      end
+
+      context 'When response type is ClamAV::SuccessResponse' do
+        let(:response) { ClamAV::SuccessResponse.new("OK") }
+        it { expect(subject).to eq(true) }
+      end
+
+      context 'When response type is ClamAV::VirusResponse' do
+        let(:response) { ClamAV::VirusResponse.new("KO", "VirusN4ame") }
+        it { expect(subject).to eq(false) }
+      end
+
+      context 'When response type is ClamAV::ErrorResponse' do
+        let(:response) { ClamAV::ErrorResponse.new("File not found") }
+        it { expect { subject }.to raise_error("ClamAV ErrorResponse : File not found") }
+      end
     end
 
-    context 'When response type is ClamAV::SuccessResponse' do
-      let(:response) { ClamAV::SuccessResponse.new("OK") }
-      it { expect(subject).to eq(true) }
-    end
+    context "when ClamAV is disabled" do
+      before do
+        @saved_clamav = Rails.configuration.x.clamav.enabled
+        Rails.configuration.x.clamav.enabled = false
+      end
 
-    context 'When response type is ClamAV::VirusResponse' do
-      let(:response) { ClamAV::VirusResponse.new("KO", "VirusN4ame") }
-      it { expect(subject).to eq(false) }
-    end
+      after do
+        Rails.configuration.x.clamav.enabled = @saved_clamav
+      end
 
-    context 'When response type is ClamAV::ErrorResponse' do
-      let(:response) { ClamAV::ErrorResponse.new("File not found") }
-      it { expect { subject }.to raise_error("ClamAV ErrorResponse : File not found") }
+      it do
+        expect(ClamAV::Client).not_to receive(:new)
+        expect(FileUtils).not_to receive(:chmod)
+        expect(subject).to eq(true)
+      end
     end
   end
 end