Refactor ClustersFinder

app/finders/clusters_finder.rb

 class ClustersFinder
+  attr_reader :project, :user, :scope
+
   def initialize(project, user, scope)
     @project = project
     @user = user
-    @scope = scope
+    @scope = scope || :active
   end
 
   def execute
-    clusters = case @scope
-               when :all
-                 @project.clusters
-               when :enabled
-                 @project.clusters.enabled
-               when :disabled
-                 @project.clusters.disabled
-               end
-    clusters.map { |cluster| cluster.present(current_user: @user) }
+    clusters = project.clusters
+    filter_by_scope(clusters)
+  end
+
+  private
+
+  def filter_by_scope(clusters)
+    case @scope.to_sym
+    when :all
+      clusters
+    when :inactive
+      clusters.disabled
+    when :active
+      clusters.enabled
+    else
+      raise "Invalid scope #{@scope}"
+    end
   end
 end

spec/finders/clusters_finder_spec.rb

@@ -15,19 +15,19 @@ describe ClustersFinder do
     context 'when scope is all' do
       let(:scope) { :all }
 
-      it { is_expected.to eq(project.clusters.to_a) }
+      it { is_expected.to eq(project.clusters) }
     end
 
     context 'when scope is enabled' do
-      let(:scope) { :enabled }
+      let(:scope) { :active }
 
-      it { is_expected.to eq(project.clusters.enabled.to_a) }
+      it { is_expected.to eq(project.clusters.enabled) }
     end
 
     context 'when scope is disabled' do
-      let(:scope) { :disabled }
+      let(:scope) { :inactive }
 
-      it { is_expected.to eq(project.clusters.disabled.to_a) }
+      it { is_expected.to eq(project.clusters.disabled) }
     end
   end
 end