Minor refactor of v2 endpoints (#4140)

Author: sethboyles

app/controllers/services/managed_service_instances_controller.rb

@@ -10,6 +10,7 @@
 require 'presenters/v2/service_instance_shared_from_presenter'
 
 module VCAP::CloudController
+  # rubocop:disable Metrics/ClassLength
   class ServiceInstancesController < RestController::ModelController
     include VCAP::CloudController::LockCheck
 
@@ -142,6 +143,10 @@ def update(guid)
       raise CloudController::Errors::ApiError.new_from_details('AsyncServiceBindingOperationInProgress', e.service_binding.app.name, e.service_binding.service_instance.name)
     end
 
+    deprecated_endpoint '/v2/managed_service_instances'
+    get '/v2/managed_service_instances', :enumerate
+    get '/v2/managed_service_instances/:guid', :read
+
     def read(guid)
       service_instance = find_guid_and_validate_access(:read, guid, ServiceInstance)
 
@@ -597,4 +602,5 @@ def projected_service_instance(service_instance)
       service_instance.clone.set(request_attrs.select { |k, _v| ServiceInstanceUpdate::KEYS_TO_UPDATE_CC.include? k })
     end
   end
+  # rubocop:enable Metrics/ClassLength
 end

app/controllers/services/service_instances_controller.rb

@@ -1123,6 +1123,28 @@ def stub_delete_and_return(status, body)
       end
     end
 
+    describe 'GET', '/v2/managed_service_instances' do
+      let(:service_instance) { ManagedServiceInstance.make(gateway_name: Sham.name) }
+      let(:space) { service_instance.space }
+      let(:developer) { make_developer_for_space(space) }
+
+      it 'is deprecated' do
+        set_current_user(developer)
+        get '/v2/managed_service_instances'
+        expect(last_response).to be_a_deprecated_response
+      end
+
+      it 'behaves the same as /v2/service_instances/' do
+        set_current_user(developer)
+        get '/v2/managed_service_instances'
+        deprecated_response = last_response
+        expect(deprecated_response).to have_status_code(200)
+        get '/v2/service_instances'
+        new_response = last_response
+        expect(new_response.body).to eq(deprecated_response.body)
+      end
+    end
+
     describe 'GET /v2/service_instances' do
       context 'dashboard_url' do
         let(:service_instance) { ManagedServiceInstance.make(gateway_name: Sham.name) }
@@ -1535,6 +1557,29 @@ def stub_delete_and_return(status, body)
       end
     end
 
+    describe 'GET', '/v2/managed_service_instances/:guid' do
+      let(:space) { Space.make }
+      let(:developer) { make_developer_for_space(space) }
+      let(:service_instance) { ManagedServiceInstance.make(space:) }
+      let(:service_plan) { ServicePlan.make(active: false) }
+
+      it 'is deprecated' do
+        set_current_user(developer)
+        get "v2/managed_service_instances/#{service_instance.guid}"
+        expect(last_response).to be_a_deprecated_response
+      end
+
+      it 'behaves the same as /v2/service_instances/:guid' do
+        set_current_user(developer)
+        get "v2/managed_service_instances/#{service_instance.guid}"
+        deprecated_response = last_response
+        expect(deprecated_response).to have_status_code(200)
+        get "v2/service_instances/#{service_instance.guid}"
+        new_response = last_response
+        expect(new_response.body).to eq(deprecated_response.body)
+      end
+    end
+
     describe 'GET /v2/service_instances/:service_instance_guid' do
       let(:space) { service_instance.space }
       let(:developer) { make_developer_for_space(space) }