Autofix Rubocop Security/IoMethods (#23757)

.rubocop_todo.yml

@@ -1956,13 +1956,6 @@ Rails/WhereExists:
     - 'spec/services/purge_domain_service_spec.rb'
     - 'spec/services/unallow_domain_service_spec.rb'
 
-# Offense count: 3
-# This cop supports unsafe autocorrection (--autocorrect-all).
-Security/IoMethods:
-  Exclude:
-    - 'spec/controllers/admin/export_domain_allows_controller_spec.rb'
-    - 'spec/controllers/admin/export_domain_blocks_controller_spec.rb'
-
 # Offense count: 5
 # This cop supports unsafe autocorrection (--autocorrect-all).
 Style/CaseLikeIf:

spec/controllers/admin/export_domain_allows_controller_spec.rb

@@ -14,7 +14,7 @@ RSpec.describe Admin::ExportDomainAllowsController, type: :controller do
 
       get :export, params: { format: :csv }
       expect(response).to have_http_status(200)
-      expect(response.body).to eq(IO.read(File.join(file_fixture_path, 'domain_allows.csv')))
+      expect(response.body).to eq(File.read(File.join(file_fixture_path, 'domain_allows.csv')))
     end
   end
 
@@ -30,7 +30,7 @@ RSpec.describe Admin::ExportDomainAllowsController, type: :controller do
       # Domains should now be added
       get :export, params: { format: :csv }
       expect(response).to have_http_status(200)
-      expect(response.body).to eq(IO.read(File.join(file_fixture_path, 'domain_allows.csv')))
+      expect(response.body).to eq(File.read(File.join(file_fixture_path, 'domain_allows.csv')))
     end
 
     it 'displays error on no file selected' do

spec/controllers/admin/export_domain_blocks_controller_spec.rb

@@ -16,7 +16,7 @@ RSpec.describe Admin::ExportDomainBlocksController, type: :controller do
 
       get :export, params: { format: :csv }
       expect(response).to have_http_status(200)
-      expect(response.body).to eq(IO.read(File.join(file_fixture_path, 'domain_blocks.csv')))
+      expect(response.body).to eq(File.read(File.join(file_fixture_path, 'domain_blocks.csv')))
     end
   end