Initial commit

spec/mailers/postmaster_spec.rb

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+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe Postmaster, type: :mailer do
+  let!(:create_admin_permission) do
+    create :permission,
+           role: 'admin'
+  end
+  let!(:create_member_permission) do
+    create :permission,
+           role: 'member'
+  end
+
+  describe '#process_payload' do
+    let!(:user) { create(:user, email: 'test1@gmail.com') }
+    let(:record) { OpenStruct.new(domain: 'barong.com', token: 'blah-blah' ) }
+    let(:payload) do
+      {
+        user: user,
+        changes: nil,
+        record: record,
+        subject: 'Test Email',
+        template_name: 'email_confirmation.en.html.erb',
+        logo: 'https://storage.googleapis.com/public_peatio/logo.png'
+      }
+    end
+    let(:mail) { Postmaster.process_payload(payload) }
+
+    it 'renders the headers' do
+      expect(mail.subject).to eq('Test Email')
+      expect(mail.to).to eq(['test1@gmail.com'])
+      expect(mail.from).to eq(['noreply@barong.io'])
+    end
+
+    it 'renders the body' do
+      expect(mail.body.encoded).to match('Use this unique link to confirm your email test1@gmail.com')
+    end
+  end
+end