From 913fc4c4379b5a43560302916a9c604e71dcecf4 Mon Sep 17 00:00:00 2001
From: Aakriti Gupta <agupta@gitlab.com>
Date: Wed, 22 Oct 2025 14:03:47 +0200
Subject: [PATCH] Geo:Add integration tests for project repo replication v2

---
 ...ository_replication_v2_integration_spec.rb | 44 +++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 ee/spec/replicators/geo/geo_project_repository_replication_v2_integration_spec.rb

diff --git a/ee/spec/replicators/geo/geo_project_repository_replication_v2_integration_spec.rb b/ee/spec/replicators/geo/geo_project_repository_replication_v2_integration_spec.rb
new file mode 100644
index 00000000000000..4ab291c852c076
--- /dev/null
+++ b/ee/spec/replicators/geo/geo_project_repository_replication_v2_integration_spec.rb
@@ -0,0 +1,44 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe 'Geo Project Repository Replication V2 Integration', :geo, feature_category: :geo_replication do
+  include EE::GeoHelpers
+
+  let_it_be(:primary) { create(:geo_node, :primary) }
+  let_it_be(:secondary) { create(:geo_node) }
+  let_it_be(:project) { create(:project, :repository) }
+  let_it_be(:project_repository) { project.project_repository }
+
+  before do
+    stub_current_geo_node(secondary)
+  end
+
+  describe 'switching between legacy and v2 replication' do
+    it 'maintains data consistency when switching V1 → V2 → V1' do
+      # Step 1: Start with V1 (legacy)
+      stub_feature_flags(geo_project_repository_replication: true)
+      stub_feature_flags(geo_project_repository_replication_v2: false)
+
+      registry = Geo::ProjectRepositoryRegistry.create!(project: project)
+      expect(registry.project_id).to eq(project.id)
+      # Note: project_repository_id might be populated due to populate_missing_foreign_keys
+      # but the registry should still work correctly in V1 mode
+
+      # Step 2: Switch to V2
+      stub_feature_flags(geo_project_repository_replication_v2: true)
+
+      # Registry should work in V2 mode
+      registry.reload
+      expect(registry.project_id).to eq(project.id)
+      expect(registry.project_repository).to eq(project_repository) # Should return project_repository in V2
+
+      # Step 3: Switch back to V1
+      stub_feature_flags(geo_project_repository_replication_v2: false)
+
+      # Should work in V1 mode again
+      expect(registry.reload.project_id).to eq(project.id)
+      expect(registry.project).to eq(project) # Should return project in V1
+    end
+  end
+end
-- 
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