Adding project_name to subject line

app/mailers/job_mailer.rb

@@ -4,6 +4,6 @@ class JobMailer < ApplicationMailer
   def completion_email
     @job_run = params[:job_run]
     @user = @job_run.bundle_context.user
-    mail(to: @user.email, subject: "Your #{@job_run.job_type.humanize} job completed")
+    mail(to: @user.email, subject: @job_run.mail_subject)
   end
 end

app/models/job_run.rb

@@ -16,6 +16,11 @@ def enqueue!
     "#{job_type.camelize}Job".constantize.perform_later(self)
   end
 
+  # @return [String] Subject line for notification email
+  def mail_subject
+    "[#{bundle_context.project_name}] Your #{job_type.humanize} job completed"
+  end
+
   def send_notification
     return unless output_location
     JobMailer.with(job_run: self).completion_email.deliver_later

spec/mailers/job_mailer_spec.rb

@@ -3,7 +3,7 @@
   let(:job_notification) { described_class.with(job_run: job_run).completion_email }
 
   it 'renders the headers' do
-    expect(job_notification.subject).to eq("Your Discovery report job completed")
+    expect(job_notification.subject).to eq("[Test_Project] Your Discovery report job completed")
     expect(job_notification.to).to eq([job_run.bundle_context.user.email])
     expect(job_notification.from).to eq(["no-reply-preassembly-job@stanford.edu"])
   end
@@ -12,7 +12,7 @@
     before { job_run.job_type = 1 }
 
     it 'adapts depending on job_type' do
-      expect(job_notification.subject).to eq("Your Preassembly job completed")
+      expect(job_notification.subject).to eq("[Test_Project] Your Preassembly job completed")
     end
   end