Added spec for import method in assignment_participant.rb file

app/models/assignment_participant.rb

@@ -210,7 +210,7 @@ def self.import(row_hash, _row_header = nil, session, id)
       new_part.set_handle
     end
     prepared_mail = MailerHelper.send_mail_to_user(user, "Your Expertiza account and password have been created.", "user_welcome", "password")
-    prepared_mail.deliver
+    prepared_mail.deliver_now
   end
 
   # provide export functionality for Assignment Participants

spec/models/assignment_particpant_spec.rb

@@ -283,7 +283,7 @@
           {name: 'no one', fullname: 'no one', email: 'name@email.com', role:'user_role_name', parent: 'user_parent_name'}
         end
         let(:attributes) do
-          {role_id: 1, name: 'no one', fullname: 'no one', email: '', email_on_submission: 'name@email.com',
+          {role_id: 1, name: 'no one', fullname: 'no one', email: 'name@email.com', email_on_submission: 'name@email.com',
            email_on_review: 'name@email.com', email_on_review_of_review: 'name@email.com'}
         end
         before(:each) do
@@ -308,6 +308,35 @@
           end
         end
       end
+
+      context "when participant is added to assignment using csv" do
+        let(:row) do
+          {name: 'no one', fullname: 'no one', email: 'name@email.com', role:'user_role_name', parent: 'user_parent_name'}
+        end
+        let(:attributes) do
+          {role_id: 1, name: 'no one', fullname: 'no one', email: 'name@email.com', email_on_submission: 'name@email.com',
+           email_on_review: 'name@email.com', email_on_review_of_review: 'name@email.com'}
+        end
+
+        it "should send an email to the participant", :mailer => true do
+          allow(ImportFileHelper).to receive(:define_attributes).with(row).and_return(attributes)
+          allow(ImportFileHelper).to receive(:create_new_user).with(attributes, {}).and_return(double('User', id: 1, email: 'name@email.com', first_name: 'no name', last_name: 'no name', name: 'no name'))
+          allow(Assignment).to receive(:find).with(1).and_return(assignment)
+          allow(AssignmentParticipant).to receive(:exists?).with(user_id: 1, parent_id: 1).and_return(false)
+          allow(AssignmentParticipant).to receive(:create).with(user_id: 1, parent_id: 1).and_return(participant)
+          allow(participant).to receive(:set_handle).and_return('handle')
+
+          # Check that ActionMailer::Base.deliveries list is updated when email is set by import method.
+          # The last element in the deliveries list will be the email that was just sent when import method was invoked
+          # We need to verify the email was correct by checking its subject, from and to.
+          # In development/test mode, all mails go to expertiza.development@gmail.com and not actual user.to
+          expect { AssignmentParticipant.import(row, nil, {}, 1) }.to change { ActionMailer::Base.deliveries.count }.by(1)
+          email = ActionMailer::Base.deliveries.last
+          expect(email.from[0]).to eq('expertiza.development@gmail.com')
+          expect(email.to[0]).to eq('expertiza.development@gmail.com')
+          expect(email.subject).to eq('Your Expertiza account and password have been created.')
+        end
+      end
     end
   end