Added admin api for managing tags (#26872)

spec/requests/api/v1/admin/tags_spec.rb

@@ -0,0 +1,141 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe 'Tags' do
+  let(:role)    { UserRole.find_by(name: 'Admin') }
+  let(:user)    { Fabricate(:user, role: role) }
+  let(:scopes)  { 'admin:read admin:write' }
+  let(:token)   { Fabricate(:accessible_access_token, resource_owner_id: user.id, scopes: scopes) }
+  let(:tag)     { Fabricate(:tag) }
+  let(:headers) { { 'Authorization' => "Bearer #{token.token}" } }
+
+  describe 'GET /api/v1/admin/tags' do
+    subject do
+      get '/api/v1/admin/tags', headers: headers, params: params
+    end
+
+    let(:params) { {} }
+
+    it_behaves_like 'forbidden for wrong scope', 'write:statuses'
+    it_behaves_like 'forbidden for wrong role', ''
+
+    it 'returns http success' do
+      subject
+
+      expect(response).to have_http_status(200)
+    end
+
+    context 'when there are no tags' do
+      it 'returns an empty list' do
+        subject
+
+        expect(body_as_json).to be_empty
+      end
+    end
+
+    context 'when there are tagss' do
+      let!(:tags) do
+        [
+          Fabricate(:tag),
+          Fabricate(:tag),
+          Fabricate(:tag),
+          Fabricate(:tag),
+        ]
+      end
+
+      it 'returns the expected tags' do
+        subject
+        tags.each do |tag|
+          expect(body_as_json.find { |item| item[:id] == tag.id.to_s && item[:name] == tag.name }).to_not be_nil
+        end
+      end
+
+      context 'with limit param' do
+        let(:params) { { limit: 2 } }
+
+        it 'returns only the requested number of tags' do
+          subject
+
+          expect(body_as_json.size).to eq(params[:limit])
+        end
+      end
+    end
+  end
+
+  describe 'GET /api/v1/admin/tags/:id' do
+    subject do
+      get "/api/v1/admin/tags/#{tag.id}", headers: headers
+    end
+
+    let!(:tag) { Fabricate(:tag) }
+
+    it_behaves_like 'forbidden for wrong scope', 'write:statuses'
+    it_behaves_like 'forbidden for wrong role', ''
+
+    it 'returns http success' do
+      subject
+
+      expect(response).to have_http_status(200)
+    end
+
+    it 'returns expected tag content' do
+      subject
+
+      expect(body_as_json[:id].to_i).to eq(tag.id)
+      expect(body_as_json[:name]).to eq(tag.name)
+    end
+
+    context 'when the requested tag does not exist' do
+      it 'returns http not found' do
+        get '/api/v1/admin/tags/-1', headers: headers
+
+        expect(response).to have_http_status(404)
+      end
+    end
+  end
+
+  describe 'PUT /api/v1/admin/tags/:id' do
+    subject do
+      put "/api/v1/admin/tags/#{tag.id}", headers: headers, params: params
+    end
+
+    let!(:tag)   { Fabricate(:tag) }
+    let(:params) { { display_name: tag.name.upcase } }
+
+    it_behaves_like 'forbidden for wrong scope', 'write:statuses'
+    it_behaves_like 'forbidden for wrong scope', 'admin:read'
+    it_behaves_like 'forbidden for wrong role', ''
+
+    it 'returns http success' do
+      subject
+
+      expect(response).to have_http_status(200)
+    end
+
+    it 'returns updated tag' do
+      subject
+
+      expect(body_as_json[:id].to_i).to eq(tag.id)
+      expect(body_as_json[:name]).to eq(tag.name.upcase)
+    end
+
+    context 'when the updated display name is invalid' do
+      let(:params) { { display_name: tag.name + tag.id.to_s } }
+
+      it 'returns http unprocessable content' do
+        subject
+
+        expect(response).to have_http_status(422)
+      end
+    end
+
+    context 'when the requested tag does not exist' do
+      it 'returns http not found' do
+        get '/api/v1/admin/tags/-1', headers: headers
+
+        expect(response).to have_http_status(404)
+      end
+    end
+  end
+end