Add notifications when user post a comment

spec/services/notification_service_spec.rb

@@ -0,0 +1,29 @@
+require 'spec_helper'
+
+describe NotificationService do
+
+  describe '.notify' do
+    let(:dossier) { create :dossier }
+    let(:service) { described_class.new type_notif, dossier.id }
+
+    subject { service.notify }
+
+    context 'when is the first notification for dossier_id and type_notif and alread_read is false' do
+      let(:type_notif) { 'commentaire' }
+
+      it { expect { subject }.to change(Notification, :count).by (1) }
+
+      context 'when is not the first notification' do
+        before do
+          create :notification, dossier: dossier, type_notif: type_notif
+        end
+
+        it { expect { subject }.to change(Notification, :count).by (0) }
+      end
+    end
+  end
+
+  describe 'text_for_notif' do
+    pending
+  end
+end