feat: API to add label to contacts (#1563)

spec/controllers/api/v1/accounts/contacts/labels_controller_spec.rb

@@ -0,0 +1,67 @@
+require 'rails_helper'
+
+RSpec.describe 'Contact Label API', type: :request do
+  let(:account) { create(:account) }
+
+  describe 'GET /api/v1/accounts/{account.id}/contacts/<id>/labels' do
+    let(:contact) { create(:contact, account: account) }
+
+    before do
+      contact.update_labels('label1, label2')
+    end
+
+    context 'when it is an unauthenticated user' do
+      it 'returns unauthorized' do
+        get api_v1_account_contact_labels_url(account_id: account.id, contact_id: contact.id)
+        expect(response).to have_http_status(:unauthorized)
+      end
+    end
+
+    context 'when it is an authenticated user' do
+      let(:agent) { create(:user, account: account, role: :agent) }
+
+      it 'returns all the labels for the contact' do
+        get api_v1_account_contact_labels_url(account_id: account.id, contact_id: contact.id),
+            headers: agent.create_new_auth_token,
+            as: :json
+
+        expect(response).to have_http_status(:success)
+        expect(response.body).to include('label1')
+        expect(response.body).to include('label2')
+      end
+    end
+  end
+
+  describe 'POST /api/v1/accounts/{account.id}/contacts/<id>/labels' do
+    let(:contact) { create(:contact, account: account) }
+
+    before do
+      contact.update_labels('label1, label2')
+    end
+
+    context 'when it is an unauthenticated user' do
+      it 'returns unauthorized' do
+        post api_v1_account_contact_labels_url(account_id: account.id, contact_id: contact.id),
+             params: { labels: 'label3,label4' },
+             as: :json
+
+        expect(response).to have_http_status(:unauthorized)
+      end
+    end
+
+    context 'when it is an authenticated user' do
+      let(:agent) { create(:user, account: account, role: :agent) }
+
+      it 'creates labels for the contact' do
+        post api_v1_account_contact_labels_url(account_id: account.id, contact_id: contact.id),
+             params: { labels: 'label3,label4' },
+             headers: agent.create_new_auth_token,
+             as: :json
+
+        expect(response).to have_http_status(:success)
+        expect(response.body).to include('label3')
+        expect(response.body).to include('label4')
+      end
+    end
+  end
+end