Handle invalid emails in DomainExpireMailer#expired, move logging from job to mailer

#186

spec/mailers/domain_expire_mailer_spec.rb

@@ -2,32 +2,64 @@ require 'rails_helper'
 
 RSpec.describe DomainExpireMailer do
   describe '#expired' do
-    let(:domain) { instance_spy(Domain, name: 'test.com') }
-    let(:registrar) { 'registrar' }
+    let(:domain) { instance_spy(Domain,
+                                id: 1,
+                                name: 'test.com',
+                                primary_contact_emails: recipient)
+    }
     let(:domain_presenter) { instance_spy(DomainPresenter) }
     let(:registrar_presenter) { instance_spy(RegistrarPresenter) }
-    subject(:message) { described_class.expired(domain: domain, registrar: registrar) }
+    subject(:message) { described_class.expired(domain: domain, registrar: nil) }
 
     before :example do
       expect(DomainPresenter).to receive(:new).and_return(domain_presenter)
       expect(RegistrarPresenter).to receive(:new).and_return(registrar_presenter)
     end
 
-    it 'has sender' do
-      expect(message.from).to eq(['noreply@internet.ee'])
+    context 'when all recipients are valid' do
+      let(:recipient) { %w[recipient@test.com recipient@test.com] }
+
+      it 'has sender' do
+        expect(message.from).to eq(['noreply@internet.ee'])
+      end
+
+      it 'delivers to all recipients' do
+        expect(message.to).to match_array(%w[recipient@test.com recipient@test.com])
+      end
+
+      it 'has subject' do
+        expect(message.subject).to eq('The test.com domain has expired')
+      end
+
+      it 'creates log record' do
+        log_message = 'Send DomainExpireMailer#expired email for domain #1 to recipient@test.com,' \
+        ' recipient@test.com'
+        expect(described_class.logger).to receive(:info).with(log_message)
+        message.deliver_now
+      end
+
+      it 'sends message' do
+        expect { message.deliver_now }.to change { ActionMailer::Base.deliveries.count }.by(1)
+      end
     end
 
-    it 'has recipient' do
-      expect(domain).to receive(:primary_contact_emails).and_return(['recipient@test.com'])
-      expect(message.to).to match_array(['recipient@test.com'])
-    end
+    context 'when some recipient is invalid' do
+      let(:recipient) { %w[invalid_email valid@test.com] }
 
-    it 'has subject' do
-      expect(message.subject).to eq('The test.com domain has expired')
-    end
+      before :example do
+        allow(described_class.logger).to receive(:info)
+      end
 
-    it 'sends message' do
-      expect { message.deliver! }.to change { ActionMailer::Base.deliveries.count }.by(1)
+      it 'does not deliver to invalid recipient' do
+        expect(message.to).to match_array(%w[valid@test.com])
+      end
+
+      it 'creates log record' do
+        log_message = 'Unable to send DomainExpireMailer#expired email for domain #1 to' \
+        ' invalid recipient invalid_email'
+        expect(described_class.logger).to receive(:info).with(log_message)
+        message.deliver_now
+      end
     end
   end
 end