diff --git a/spec/commands/concerns/decidim/privacy/admin/create_participatory_space_private_user_extensions_spec.rb b/spec/commands/concerns/decidim/privacy/admin/create_participatory_space_private_user_extensions_spec.rb
new file mode 100644
index 0000000..7a40ca2
--- /dev/null
+++ b/spec/commands/concerns/decidim/privacy/admin/create_participatory_space_private_user_extensions_spec.rb
@@ -0,0 +1,29 @@
+# frozen_string_literal: true
+
+require "spec_helper"
+
+describe Decidim::Privacy::Admin::CreateParticipatorySpacePrivateUserExtensions do
+  subject { Decidim::Admin::CreateParticipatorySpacePrivateUser.new(form, current_user, privatable_to, via_csv:) }
+
+  let!(:via_csv) { false }
+  let!(:privatable_to) { create(:participatory_process) }
+  let!(:email) { "my_email@example.org" }
+  let!(:name) { "Weird Guy" }
+  let!(:user) { create(:user, email: "my_email@example.org", organization: privatable_to.organization) }
+  let!(:current_user) { create(:user, email: "some_email@example.org", organization: privatable_to.organization) }
+  let!(:form) do
+    double(
+      invalid?: invalid,
+      delete_current_private_participants?: delete,
+      email:,
+      current_user:,
+      name:
+    )
+  end
+  let(:delete) { false }
+  let(:invalid) { false }
+
+  it "finds private users" do
+    expect(subject.send(:existing_user)).to eq(user)
+  end
+end