Cover Admin::DomainBlocksController more (#3329)

Also domain_block fabricator now sets unique domains

spec/controllers/admin/domain_blocks_controller_spec.rb

@@ -8,17 +8,30 @@ RSpec.describe Admin::DomainBlocksController, type: :controller do
   end
 
   describe 'GET #index' do
-    it 'returns http success' do
-      get :index
+    around do |example|
+      default_per_page = DomainBlock.default_per_page
+      DomainBlock.paginates_per 1
+      example.run
+      DomainBlock.paginates_per default_per_page
+    end
+
+    it 'renders domain blocks' do
+      2.times { Fabricate(:domain_block) }
 
+      get :index, params: { page: 2 }
+
+      assigned = assigns(:domain_blocks)
+      expect(assigned.count).to eq 1
+      expect(assigned.klass).to be DomainBlock
       expect(response).to have_http_status(:success)
     end
   end
 
   describe 'GET #new' do
-    it 'returns http success' do
+    it 'assigns a new domain block' do
       get :new
 
+      expect(assigns(:domain_block)).to be_instance_of(DomainBlock)
       expect(response).to have_http_status(:success)
     end
   end
@@ -33,13 +46,25 @@ RSpec.describe Admin::DomainBlocksController, type: :controller do
   end
 
   describe 'POST #create' do
-    it 'blocks the domain' do
+    it 'blocks the domain when succeeded to save' do
       allow(DomainBlockWorker).to receive(:perform_async).and_return(true)
+
       post :create, params: { domain_block: { domain: 'example.com', severity: 'silence' } }
 
       expect(DomainBlockWorker).to have_received(:perform_async)
+      expect(flash[:notice]).to eq I18n.t('admin.domain_blocks.created_msg')
       expect(response).to redirect_to(admin_domain_blocks_path)
     end
+
+    it 'renders new when failed to save' do
+      Fabricate(:domain_block, domain: 'example.com')
+      allow(DomainBlockWorker).to receive(:perform_async).and_return(true)
+
+      post :create, params: { domain_block: { domain: 'example.com', severity: 'silence' } }
+
+      expect(DomainBlockWorker).not_to have_received(:perform_async)
+      expect(response).to render_template :new
+    end
   end
 
   describe 'DELETE #destroy' do
@@ -50,6 +75,7 @@ RSpec.describe Admin::DomainBlocksController, type: :controller do
       delete :destroy, params: { id: domain_block.id, domain_block: { retroactive: '1' } }
 
       expect(service).to have_received(:call).with(domain_block, true)
+      expect(flash[:notice]).to eq I18n.t('admin.domain_blocks.destroyed_msg')
       expect(response).to redirect_to(admin_domain_blocks_path)
     end
   end

spec/fabricators/domain_block_fabricator.rb

 Fabricator(:domain_block) do
-  domain "example.com"
+  domain { sequence(:domain) { |i| "#{i}#{Faker::Internet.domain_name}" } }
 end