Refactoring spec for the gitlab:uploads:check rake task

spec/tasks/gitlab/uploads_rake_spec.rb

@@ -2,14 +2,14 @@ require 'rake_helper'
 
 describe 'gitlab:uploads rake tasks' do
   describe 'check' do
+    let!(:upload) { create(:upload, path: Rails.root.join('spec/fixtures/banana_sample.gif')) }
+
     before do
       Rake.application.rake_require 'tasks/gitlab/uploads'
     end
 
     it 'outputs the integrity check for each uploaded file' do
-      uploaded_file = create(:upload)
-
-      expect { run_rake_task('gitlab:uploads:check') }.to output(/Checking file \(#{uploaded_file.id}\): #{Regexp.quote(uploaded_file.absolute_path)}/).to_stdout
+      expect { run_rake_task('gitlab:uploads:check') }.to output(/Checking file \(#{upload.id}\): #{Regexp.quote(upload.absolute_path)}/).to_stdout
     end
 
     it 'errors out about missing files on the file system' do
@@ -19,10 +19,9 @@ describe 'gitlab:uploads rake tasks' do
     end
 
     it 'errors out about invalid checksum' do
-      uploaded_file = create(:upload, path: Rails.root.join('spec/fixtures/banana_sample.gif'))
-      uploaded_file.update_column(:checksum, '01a3156db2cf4f67ec823680b40b7302f89ab39179124ad219f94919b8a1769e')
+      upload.update_column(:checksum, '01a3156db2cf4f67ec823680b40b7302f89ab39179124ad219f94919b8a1769e')
 
-      expect { run_rake_task('gitlab:uploads:check') }.to output(/File checksum \(9e697aa09fe196909813ee36103e34f721fe47a5fdc8aac0e4e4ac47b9b38282\) does not match the one in the database \(#{uploaded_file.checksum}\)/).to_stdout
+      expect { run_rake_task('gitlab:uploads:check') }.to output(/File checksum \(9e697aa09fe196909813ee36103e34f721fe47a5fdc8aac0e4e4ac47b9b38282\) does not match the one in the database \(#{upload.checksum}\)/).to_stdout
     end
   end
 end