Prefer described_class, feedback:

spec/lib/gitlab/data_builder/build_data_builder_spec.rb

@@ -5,7 +5,7 @@ describe Gitlab::DataBuilder::BuildDataBuilder do
 
   describe '.build' do
     let(:data) do
-      Gitlab::DataBuilder::BuildDataBuilder.build(build)
+      described_class.build(build)
     end
 
     it { expect(data).to be_a(Hash) }

spec/lib/gitlab/data_builder/note_data_builder_spec.rb

@@ -3,7 +3,7 @@ require 'spec_helper'
 describe Gitlab::DataBuilder::NoteDataBuilder, lib: true do
   let(:project) { create(:project) }
   let(:user) { create(:user) }
-  let(:data) { Gitlab::DataBuilder::NoteDataBuilder.build(note, user) }
+  let(:data) { described_class.build(note, user) }
   let(:fixed_time) { Time.at(1425600000) } # Avoid time precision errors
 
   before(:each) do

spec/lib/gitlab/data_builder/pipeline_data_builder_spec.rb

@@ -15,7 +15,7 @@ describe Gitlab::DataBuilder::PipelineDataBuilder do
   let!(:build) { create(:ci_build, pipeline: pipeline) }
 
   describe '.build' do
-    let(:data) { Gitlab::DataBuilder::PipelineDataBuilder.build(pipeline) }
+    let(:data) { described_class.build(pipeline) }
     let(:attributes) { data[:object_attributes] }
     let(:build_data) { data[:builds].first }
     let(:project_data) { data[:project] }