diff --git a/spec/domain/etl/ga/views_and_navigation_processor_spec.rb b/spec/domain/etl/ga/views_and_navigation_processor_spec.rb
index 831a3c9da..c7c8331b3 100644
--- a/spec/domain/etl/ga/views_and_navigation_processor_spec.rb
+++ b/spec/domain/etl/ga/views_and_navigation_processor_spec.rb
@@ -15,9 +15,7 @@
     before { allow(Etl::GA::ViewsAndNavigationService).to receive(:find_in_batches).and_yield(ga_response) }
 
     it "update the facts with the GA metrics" do
-      fact1 = create :metric,
-                     edition: edition1,
-                     date: "2018-02-20"
+      fact1 = create :metric, edition: edition1, date: "2018-02-20"
       fact2 = create :metric, edition: edition2, date: "2018-02-20"
 
       described_class.process(date:)
@@ -68,6 +66,58 @@
     end
   end
 
+  context "When the GA path contains the gov.uk prefix" do
+    before { allow(Etl::GA::ViewsAndNavigationService).to receive(:find_in_batches).and_yield(ga_response_with_govuk_prefix) }
+
+    context "when an event does not already exist with the same page_path" do
+      it "updates the fact with the GA metrics" do
+        fact1 = create :metric, edition: edition1, date: "2018-02-20"
+
+        described_class.process(date:)
+
+        expect(fact1.reload).to have_attributes(pviews: 1, upviews: 1)
+      end
+    end
+
+    context "when an event already exists with the same page_path" do
+      before do
+        create(:ga_event, :with_views, date: "2018-02-20", page_path: "/path1")
+      end
+
+      it "updates the fact with the aggregated GA metrics" do
+        fact1 = create :metric, edition: edition1, date: "2018-02-20"
+
+        described_class.process(date:)
+
+        expect(fact1.reload).to have_attributes(pviews: 11, upviews: 6)
+      end
+
+      it "does not update metrics for other days" do
+        fact1 = create :metric, edition: edition1, date: "2018-02-20", pviews: 20, upviews: 10
+
+        day_before = date - 1
+        described_class.process(date: day_before)
+
+        expect(fact1.reload).to have_attributes(pviews: 20, upviews: 10)
+      end
+
+      it "does not update metrics for other items" do
+        edition = create :edition, base_path: "/non-matching-path", date: "2018-02-20"
+        fact = create :metric, edition:, date: "2018-02-20", pviews: 99, upviews: 90
+
+        described_class.process(date:)
+
+        expect(fact.reload).to have_attributes(pviews: 99, upviews: 90)
+      end
+
+      it "deletes events after updating facts metrics" do
+        described_class.process(date:)
+
+        expect(Events::GA.count).to eq(0)
+      end
+    end
+  end
+
   it_behaves_like "traps and logs errors in process", Etl::GA::ViewsAndNavigationService, :find_in_batches
 
 private