feature spec for DfE Sign In

spec/features/journeys/sad_paths/dfe_sign_in_spec.rb

@@ -0,0 +1,55 @@
+require "rails_helper"
+
+RSpec.feature "DfE sign in", type: :feature do
+  include Helpers::JourneyAssertionHelper
+
+  let(:user) { User.find_by(email: "user@example.com") }
+
+  context "when there is an existing user with no DfE Identity UID" do
+    include_context "Stub Get An Identity Omniauth Responses"
+
+    before { create(:user, email: "user@example.com", full_name: "previous name", provider: nil, uid: nil) }
+
+    scenario "the user should be updated with DfE Identity attributes" do
+      navigate_to_page(path: "/", submit_form: false, axe_check: false) do
+        page.click_button("Start now")
+      end
+
+      expect_page_to_have(path: "/registration/course-start-date", submit_form: true)
+      expect(user.uid).to be_present
+      expect(user.provider).to eq "tra_openid_connect"
+      expect(user.full_name).to eq "John Doe"
+    end
+  end
+
+  context "when there is another account that matches the DfE Identity email but it doesn't have a DfE Identity UID" do
+    include_context "Stub Get An Identity Omniauth Responses" do
+      let(:user_email) { "user@example.com" }
+      let(:user_uid) { other_account_with_dfe_id.uid }
+    end
+
+    let!(:user_without_dfe_id) do
+      create(:user, email: "user@example.com", full_name: "previous name", provider: nil, uid: nil)
+    end
+    let!(:other_account_with_dfe_id) { create(:user, email: "old@example.com", provider: "tra_openid_connect", uid: SecureRandom.uuid, trn: user_without_dfe_id.trn) }
+
+    scenario "starting the journey" do
+      navigate_to_page(path: "/", submit_form: false, axe_check: false) do
+        page.click_button("Start now")
+      end
+
+      expect(page).to have_current_path("/registration/start") # current erroneous behaviour
+
+      # temporary fix - remove DfE Identity UID from new account, so old account is used
+      other_account_with_dfe_id.update!(uid: nil, provider: nil)
+
+      navigate_to_page(path: "/", submit_form: false, axe_check: false) do
+        page.click_button("Start now")
+      end
+      expect_page_to_have(path: "/registration/course-start-date", submit_form: true)
+      expect(user_without_dfe_id.reload.uid).to be_present
+      expect(user_without_dfe_id.provider).to eq "tra_openid_connect"
+      expect(user_without_dfe_id.full_name).to eq "John Doe"
+    end
+  end
+end