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require 'spec_helper'
describe Gitlab::Email::Hook::DeliveryMetricsObserver do
let(:email) do
ActionMailer::Base.mail(to: 'test@example.com',
from: 'info@example.com',
body: 'hello')
end
context 'when email has been delivered' do
it 'increments both email delivery metrics' do
expect(described_class.delivery_attempts_counter).to receive(:increment)
expect(described_class.delivered_emails_counter).to receive(:increment)
email.deliver_now
end
end
context 'when email has not been delivered due to an error' do
before do
allow(email.delivery_method).to receive(:deliver!)
.and_raise(StandardError, 'Some SMTP error')
end
it 'increments only delivery attempt metric' do
expect(described_class.delivery_attempts_counter)
.to receive(:increment)
expect(described_class.delivered_emails_counter)
.not_to receive(:increment)
expect { email.deliver_now }
.to raise_error(StandardError, 'Some SMTP error')
end
end
end
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