1 files changed, 64 insertions, 0 deletions
diff --git a/spec/requests/api/integrations/slack/options_spec.rb b/spec/requests/api/integrations/slack/options_spec.rb
new file mode 100644
index 00000000000..eef993d0329
--- /dev/null
+++ b/spec/requests/api/integrations/slack/options_spec.rb
@@ -0,0 +1,64 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe API::Integrations::Slack::Options, feature_category: :integrations do
+  describe 'POST /integrations/slack/options' do
+    let_it_be(:slack_installation) { create(:slack_integration) }
+
+    let(:payload) { {} }
+    let(:params) { { payload: Gitlab::Json.dump(payload) } }
+
+    let(:headers) do
+      {
+        ::API::Integrations::Slack::Request::VERIFICATION_TIMESTAMP_HEADER => Time.current.to_i.to_s,
+        ::API::Integrations::Slack::Request::VERIFICATION_SIGNATURE_HEADER => 'mock_verified_signature'
+      }
+    end
+
+    before do
+      allow(ActiveSupport::SecurityUtils).to receive(:secure_compare) do |signature|
+        signature == 'mock_verified_signature'
+      end
+
+      stub_application_setting(slack_app_signing_secret: 'mock_key')
+    end
+
+    subject(:post_to_slack_api) { post api('/integrations/slack/options'), params: params, headers: headers }
+
+    it_behaves_like 'Slack request verification'
+
+    context 'when type param is unknown' do
+      let(:payload) do
+        { action_id: 'unknown_action' }
+      end
+
+      it 'generates a tracked error' do
+        expect(Gitlab::ErrorTracking).to receive(:track_exception).once
+
+        post_to_slack_api
+
+        expect(response).to have_gitlab_http_status(:no_content)
+        expect(response.body).to be_empty
+      end
+    end
+
+    context 'when action_id param is assignee' do
+      let(:payload) do
+        {
+          action_id: 'assignee'
+        }
+      end
+
+      it 'calls the Slack Interactivity Service' do
+        expect_next_instance_of(::Integrations::SlackOptionService) do |service|
+          expect(service).to receive(:execute).and_return(ServiceResponse.success)
+        end
+
+        post_to_slack_api
+
+        expect(response).to have_gitlab_http_status(:ok)
+      end
+    end
+  end
+end