Add clamav tests

spec/services/clamav_service_spec.rb

@@ -0,0 +1,20 @@
+require 'spec_helper'
+
+describe ClamavService do
+  describe '.safe_file?' do
+    let(:path_file) { '/tmp/plop.txt' }
+
+    subject { ClamavService.safe_file? path_file }
+
+    before do
+      allow_any_instance_of(ClamAV::Client).to receive(:initialize).and_return(ClamAV::Client)
+      allow_any_instance_of(ClamAV::Client).to receive(:execute).and_return([ClamAV::SuccessResponse])
+    end
+
+    it 'change permission of file path' do
+      allow(FileUtils).to receive(:chmod).with(0666, path_file).and_return(true)
+
+      subject
+    end
+  end
+end