Add a test to ensure that an empty database remains empty

Only the schema itself should change

spec/automated_review/empty_database_spec.rb

@@ -0,0 +1,11 @@
+describe "Empty Database" do
+  it "after migrated remains empty" do
+    counts = ApplicationRecord.connection.tables.each_with_object([]) do |t, array|
+      next if ManageIQ::Schema::SYSTEM_TABLES.include?(t)
+      count = ApplicationRecord.connection.execute("SELECT COUNT(*) FROM #{t};").getvalue(0, 0)
+      array << "#{t}: #{count}" if count.positive?
+    end
+
+    expect(counts.size).to eq(0), "Records were found in the following tables:\n#{counts.join("\n")}"
+  end
+end