1 files changed, 37 insertions, 0 deletions
diff --git a/spec/lib/gitlab/email/service_desk_receiver_spec.rb b/spec/lib/gitlab/email/service_desk_receiver_spec.rb
new file mode 100644
index 00000000000..6ba58ad5e93
--- /dev/null
+++ b/spec/lib/gitlab/email/service_desk_receiver_spec.rb
@@ -0,0 +1,37 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::Email::ServiceDeskReceiver do
+  let(:email) { fixture_file('emails/service_desk_custom_address.eml') }
+  let(:receiver) { described_class.new(email) }
+
+  context 'when the email contains a valid email address' do
+    before do
+      stub_service_desk_email_setting(enabled: true, address: 'support+%{key}@example.com')
+    end
+
+    it 'finds the service desk key' do
+      handler = double(execute: true, metrics_event: true, metrics_params: true)
+      expected_params = [
+        an_instance_of(Mail::Message), nil,
+        { service_desk_key: 'project_slug-project_key' }
+      ]
+
+      expect(Gitlab::Email::Handler::ServiceDeskHandler)
+        .to receive(:new).with(*expected_params).and_return(handler)
+
+      receiver.execute
+    end
+  end
+
+  context 'when the email does not contain a valid email address' do
+    before do
+      stub_service_desk_email_setting(enabled: true, address: 'other_support+%{key}@example.com')
+    end
+
+    it 'raises an error' do
+      expect { receiver.execute }.to raise_error(Gitlab::Email::UnknownIncomingEmail)
+    end
+  end
+end