Fix leaky constant in commit entity spec

.rubocop.yml

@@ -375,7 +375,6 @@ RSpec/LeakyConstantDeclaration:
     - 'spec/models/concerns/bulk_insertable_associations_spec.rb'
     - 'spec/models/concerns/triggerable_hooks_spec.rb'
     - 'spec/models/repository_spec.rb'
-    - 'spec/serializers/commit_entity_spec.rb'
     - 'spec/services/clusters/applications/check_installation_progress_service_spec.rb'
     - 'spec/services/clusters/applications/check_uninstall_progress_service_spec.rb'
     - 'spec/support/shared_contexts/spam_constants.rb'

changelogs/unreleased/leaky-constant-fix-11.yml

+---
+title: Fix leaky constant issue in commit entity spec
+merge_request: 32039
+author: Rajendra Kadam
+type: fixed

spec/serializers/commit_entity_spec.rb

@@ -3,7 +3,7 @@
 require 'spec_helper'
 
 describe CommitEntity do
-  SIGNATURE_HTML = 'TEST'.freeze
+  let(:signature_html) { 'TEST' }
 
   let(:entity) do
     described_class.new(commit, request: request)
@@ -16,7 +16,7 @@ describe CommitEntity do
 
   before do
     render = double('render')
-    allow(render).to receive(:call).and_return(SIGNATURE_HTML)
+    allow(render).to receive(:call).and_return(signature_html)
 
     allow(request).to receive(:project).and_return(project)
     allow(request).to receive(:render).and_return(render)
@@ -83,7 +83,7 @@ describe CommitEntity do
 
       it 'exposes "signature_html"' do
         expect(request.render).to receive(:call)
-        expect(subject.fetch(:signature_html)).to be SIGNATURE_HTML
+        expect(subject.fetch(:signature_html)).to be signature_html
       end
     end