[ci] Start testing Relationship

Needs a cache store enabled. Hopefully memory_store behaves the same
as dalli_store...

src/api/config/environments/test.rb

@@ -23,7 +23,7 @@
   # ActionMailer::Base.deliveries array.
   config.action_mailer.delivery_method = :test
 
-  config.cache_store = :dalli_store, '127.0.0.1:11211', {namespace: ENV['CACHENAMESPACE'], expires_in: 1.hour }
+  config.cache_store = :memory_store
 
   config.active_support.deprecation = :log
 

src/api/spec/factories/project.rb

@@ -14,5 +14,11 @@
         project.packages << create(:package, project_id: project.id)
       end
     end
+
+    factory :forbidden_project do
+      after(:create) do |project|
+        create(:access_flag, status: 'disable', project: project)
+      end
+    end
   end
 end

src/api/spec/models/relationship_spec.rb

@@ -0,0 +1,50 @@
+require 'rails_helper'
+
+RSpec.describe Relationship do
+  before(:all) do
+    @caching_state = ActionController::Base.perform_caching
+    ActionController::Base.perform_caching = true
+  end
+
+  after(:all) do
+    ActionController::Base.perform_caching = @caching_state
+  end
+
+  it '.add_user' do
+    skip
+  end
+
+  it '.add_group' do
+    skip
+  end
+
+  describe '.forbidden_project_ids' do
+    it 'always returns 0 for admins' do
+      User.current = create(:admin_user)
+
+      expect(Relationship.forbidden_project_ids).to eq([0])
+    end
+
+    it 'hides projects for users' do
+      User.current = create(:confirmed_user)
+      project = create(:forbidden_project)
+      create(:relationship, project: project, user: User.current)
+
+      User.current = create(:confirmed_user)
+      expect(Relationship.forbidden_project_ids).to include(project.id)
+    end
+
+    it 'shows projects for whitelisted users' do
+      project = create(:forbidden_project)
+      user = create(:confirmed_user)
+      create(:relationship, project: project, user: user)
+
+      User.current = user
+      expect(Relationship.forbidden_project_ids).not_to include(project.id)
+    end
+  end
+
+  it '.discard_cache' do
+    skip
+  end
+end