Fix specs for Import::AttributePermitter

lib/gitlab/import_export/project/import_export.yml

@@ -126,7 +126,6 @@ included_attributes:
     - :project_id
   project_badges:
     - :created_at
-    - :group_id
     - :image_url
     - :link_url
     - :name
@@ -572,7 +571,6 @@ included_attributes:
     - :updated_at
   actions:
     - :event
-    - :image_v432x230
   design: &design_definition
     - :iid
     - :project_id
@@ -731,7 +729,6 @@ excluded_attributes:
     - :verification_checksum
     - :verification_failure
   merge_request_diff_files:
-    - :diff
     - :external_diff_offset
     - :external_diff_size
     - :merge_request_diff_id
@@ -890,8 +887,6 @@ excluded_attributes:
   system_note_metadata:
     - :description_version_id
     - :note_id
-  pipeline_schedules:
-    - :active
 methods:
   notes:
     - :type

spec/lib/gitlab/import_export/safe_model_attributes.yml

@@ -253,6 +253,7 @@ MergeRequestDiffFile:
 - b_mode
 - too_large
 - binary
+- diff
 MergeRequestContextCommit:
 - id
 - authored_date

spec/support/shared_examples/lib/gitlab/import_export/attributes_permitter_shared_examples.rb

 # frozen_string_literal: true
 RSpec.shared_examples 'a permitted attribute' do |relation_sym, permitted_attributes, additional_attributes = []|
-  let(:prohibited_attributes) { %i[remote_url my_attributes my_ids token my_id test] }
+  let(:prohibited_attributes) { %w[remote_url my_attributes my_ids token my_id test] }
 
   let(:import_export_config) { Gitlab::ImportExport::Config.new.to_h }
   let(:project_relation_factory) { Gitlab::ImportExport::Project::RelationFactory }
@@ -8,7 +8,7 @@ RSpec.shared_examples 'a permitted attribute' do |relation_sym, permitted_attrib
   let(:relation_hash) { (permitted_attributes + prohibited_attributes).map(&:to_s).zip([]).to_h }
   let(:relation_name) { project_relation_factory.overrides[relation_sym]&.to_sym || relation_sym }
   let(:relation_class) { project_relation_factory.relation_class(relation_name) }
-  let(:excluded_keys) { import_export_config.dig(:excluded_keys, relation_sym) || [] }
+  let(:excluded_keys) { (import_export_config.dig(:excluded_attributes, relation_sym) || []).map(&:to_s) }
 
   let(:cleaned_hash) do
     Gitlab::ImportExport::AttributeCleaner.new(
@@ -18,7 +18,7 @@ RSpec.shared_examples 'a permitted attribute' do |relation_sym, permitted_attrib
     ).clean
   end
 
-  let(:permitted_hash) { subject.permit(relation_sym, relation_hash) }
+  let(:permitted_hash) { subject.permit(relation_sym, relation_hash).transform_keys { |k| k.to_s } }
 
   if described_class.new.permitted_attributes_defined?(relation_sym)
     it 'contains only attributes that are defined as permitted in the import/export config' do
@@ -26,11 +26,11 @@ RSpec.shared_examples 'a permitted attribute' do |relation_sym, permitted_attrib
     end
 
     it 'does not contain attributes that would be cleaned with AttributeCleaner' do
-      expect(cleaned_hash.keys + additional_attributes.to_a).to include(*permitted_hash.keys)
+      expect((cleaned_hash.keys + additional_attributes.to_a.map(&:to_s))).to include(*permitted_hash.keys)
     end
 
     it 'does not contain prohibited attributes that are not related to given relation' do
-      expect(permitted_hash.keys).not_to include(*prohibited_attributes.map(&:to_s))
+      expect(permitted_hash.keys).not_to include(*prohibited_attributes)
     end
   else
     it 'is disabled' do